JUMO safetyM STB/STW Ex Safety temperature limiter, safety temperature monitor according to DIN EN 14597 and ATEX 97/23/EG DGRL B 701155.
Operating overview
Inhalt 1 Operating overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Brief description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.1 1.2 1.3 Safety temperature monitor (STW). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Safety temperature limiter (STB) . . . . . . . . . . . . . . . . . . . . .
5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 Display and control elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Setting the display after device is switched on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Selecting and editing parameters (plausibility requirement for input values). . . . . . . . . . . . . . . . . . . .25 Canceling edit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inhalt 6.11.3 Contribution to risk minimization through the control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 6.12 6.13 6.14 6.15 6.16 Performance Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55 Relationship between the Performance Level (PL) and the Safety Integrity Level (SIL) . . . . . . . . . . .55 Other applicable device documentation . . . . . . . . . . . . . .
7.5 Safety device according to EN 50495 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78 7.5.1 Temperature monitoring unit based on ignition protection "e" – increased safety according to EN 60079-7 . . . . . .79 7.5.1.1 Function of increased safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 7.5.1.2 Application in the 1-sensor variant . . . . . . . . . . . . . .
Inhalt 8.2.7 8.2.8 8.2.9 8.2.10 8.2.11 8.2.12 8.2.13 Scaling end 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89 Probe type 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90 Offset 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.6.2 8.6.3 8.6.4 8.6.5 8.6.6 8.6.7 8.6.8 8.6.9 Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101 Decimal place . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101 Normal display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inhalt 9.13 9.14 9.15 Probes for the operating medium air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112 Probes for water and oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114 Probes for air, water, and oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116 10 Setup program . . . . . . . . . . . . . . . . . . . . . .
2013-04-01 1 1 Brief description 4 Brief description The device is tested according to ATEX directive 94/9/EG as associated equipment with intrinsically safe output.
The device concept also meets the stringent requirements of DIN EN 61508 and DIN EN 13849. The 1oo2D structure ensures reliable detection of errors, meaning that the device concept can also be used for applications subject to the new Machinery Directive 2006/42/EC. The measured value at the analog input can be recorded by various probes or standard signals.
1 Brief description 2013-04-01 1.3 6 Safety information Symbol Meaning H Important in- This symbol is used to draw your attention to something particular.
2 Identifying the device version The rating plate is glued laterally to the device.
2 Identifying the device version 2013-04-01 8 Basic type 701155 Safety temperature limiter / -monitor (STB) / (STW) according to DIN EN 14597 Version 8 9 Factory set Configured acc. to customer specifications National language German (set at factory) English French 01 02 03 Switching behavior 0251 0252 0253 0254 Safety temperature monitor max. alarm [inverse, opening function] Safety temperature monitor min. alarm [direct, closing function] Safety temperature limiter max.
2043 2044 2045 2046 2048 1053 2053 2x NiCr-Ni "K" 2x Pt10Rh-Pt "S" 2x Pt13Rh-Pt "R" 2x Pt30Rh-Pt6Rh “B” 2x NiCrSi-NiSi "N" 1x 4 to 20 mA 2x 4 to 20 mA 23 25 Voltage supply AC 110 to 240 V +10 % /-15 %, 48 to 63 Hz AC/DC 20 to 30 V, 48 to 63 Hz Analog output (configurable) 001 0 to 20 mA 005 4 to 20 mA (factory set) 040 0 to 10 V 070 2 to 10 V Extra code 058 SIL and PL approval 062 GL approval 701155 / 8- 01 - 0253 - 2001 - 23 / 005 , 062 1.
2013-04-01 2.2 2 Identifying the device version 10 Device software versions Diagnostics module version: 257.01.01 Analog channel 1 version: 258.01.02 Analog channel 2 version: 258.01.02 2.3 Fabrication number The fabrication number is displayed on the device.
This operating manual is the translation of the German manual. It is valid for the following hardware and software versions: Diagnostics module as of version: 257.01.01 Analog channel 1 as of version: 258.01.02 Analog channel 2 as of version: 258.01.02 Hardware version 0 h Press + keys Keep the operating manual in a place that is accessible to all users at all times. A All necessary settings are described in this operating manual.
2013-04-01 3 Mounting 3.
3.2 Mounting site, DIN rail mounting V The device is clipped to a 35 mm DIN rail (DIN EN 60715) from the front and The device is not suitable for installation in potentially explosive areas. locked into place by pressing downwards. v The climatic conditions at the mounting site must meet the requirements specified in the technical data.
13-04-01 3.4 3 Mounting Dismounting h Place screwdriver in release catch and press upwards (1). h Swivel screwdriver and case upwards at the same time when removing it from the DIN rail (2).
3.5 Galvanic isolation (1) Analog inputs (1) (3) Binary input (3) (5) Setup interface (6) Display 3700 V AC » » » 50 V DC (2) (2) Relay output alarm (4) (4) Pre-alarm relay output 3700 V AC (5) (6) (7) Analog output (7) 3.6 » (8) Voltage supply 3700 V AC (8) Use of the setup interface - The USB setup interface is only designed for service use over a limited period (such as the transfer of setup data or during startup).
2013-04-01 4 4 Electrical connection 16 Electrical connection 4.1 a a a a a a a a a a Installation notes Checking to see if the safety temperature limiter is installed in a manner appropriate to the application (temperature measurement) and that it is operated within the admissible plant parameters. The device is intended to be installed in switch cabinets, machines, or plants. Ensure that the customer's fuse rating does not exceed 20 A.
V The electrical connection and the configuration settings up to the startup must only be carried out by qualified personnel. A The approval according to DIN EN 14597 is only valid when the correct probe with DIN approval is set in the configuration level and if the probe is connected. The limit value to be monitored must lie in the accepted temperature range of the DIN probe! v v Chapter 9.13 "Probes for the operating medium air" Chapter 9.
2013-04-01 4.3 4 Electrical connection 18 Connection diagram The connection is made via screw terminals. A Caution: The cover cap must be removed prior to wiring and put back on when finished. This is necessary for the proper operation of the probe in the Exarea! Lead 1-wire Fine-strand, with ferrule Admissible cross section ≤ 2.5 mm2 ≤ 1.5 mm2 Tightening torque of the screws: max. 0.
Legend Comment 1, 2 Screw terminals Screw terminals Analog input 1 (E1) Analog input 2 (E2) + – + – 2 3 7 8 Thermocouple / Double thermocouple RTD temperature probe Pt100/Pt1000 in 2-wire circuit 1 A 6 3 8 Enter the lead wire resistance for RTD temperature probes in 2-wire circuit when using greater line lengths.
Comment 4 to 20 mA Screw terminals Ix 2 20 Screw terminals – + Legend 4 Electrical connection – + 2013-04-01 Ix 7 3 4 to 20 mA for both analog inputs + V 8 – Ix 7 2 Caution: When only one probe (SIL2) is connected, the temperature limiter device is reduced from SIL3 to SIL2! However, the internal 2-channel structure (1oo2D) in the device still remains. Both channels measure the same current signal due to the simplified external wiring.
Legend Comment 10 Relay output alarm (zero-current state) Relay (changeover contact) with fuse cut-out Screw terminals Screw terminals Internal circuitry 11 Relay output for pre-alarm (KV) Relay (changeover contact) S P 11 Ö 12 13 Caution V The pre-alarm relay output is not part of the safety function! 2013-04-01 4 Electrical connection 21
2013-04-01 4.4 A 4 Electrical connection 22 Checking wiring of the intrinsically safe electrical circuit Caution: The cover cap that is removed prior to wiring must be put back into place after wiring is complete so that the catches snap back into place! This is necessary for the proper operation of the probe in the Ex-area! V apply to needed connections. All screw terminals in the case must be screwed down with the maximum tightening torque of 0.5 Nm.
5 Startup of the device 5.1 Display and control elements h When the voltage supply is set up, a testing routine starts during which all LEDs blink and the backlit display shows white pixels for 2 s and black pixels for 2 s. After the testing routine is complete the device shows a main measured value (factory set). v 5.2 v If an alarm or error message appears, refer to Chapter 11 "Alarm messages". Setting the display after device is switched on Chapter 8.6.
5 Startup of the device 2013-04-01 Legend Comment 3 LCD display Black/white with background lighting 96 x 64 pixels. 6 LED KV (yellow) Is lit if the pre-alarm is triggered. 7 LED KD (yellow) Is lit if the diagnostic processor has performed a switchoff. 8 Keys (can only be operated when the transparent hood is folded upward) Value increase / previous parameter Value reduction / previous parameter Programming RESET 12 Setup interface 13 LED K2 (red) Is lit for all errors.
5.3 Selecting and editing parameters (plausibility requirement for input values) The values are displayed in the normal display. To edit a value – such as the limit value – perform steps 1 to 4 1 2 Press The first "Analog inputs" menu item is highlighted in black. The vertical line to the right shows the current position.
5 Startup of the device 2013-04-01 5.4 Canceling edit + 5.5 26 are used to cancel editing and the previous value remains. Acknowledging alarms using the reset key (for temperature limiter STB only) h Press and hold Check marks appear behind the errors. An alarm is no longer pending and is acknowledged as soon as the bar has run to the end (3 s). A bell is displayed behind the errors. The alarm condition is still pending and cannot be acknowledged. 5.
5.7 Functional test After the electrical connection in Chapter 4.3 you should proceed with the following steps for your safety: h Set the limit value that the plant must not exceed or drop below. h When all parameters are in the valid range, press the RESET key until the green LED OK is lit. h Simulate a limit value exceedance without installing the sensors in the potentially explosive area at first and check if the alarm relay output permanently switches off the plant.
2013-04-01 5.8 5 Startup of the device 28 Seal device The device settings must not be changed under operating conditions. A lead-sealed see-through cover is therefore placed on top to prevent unintentional or unauthorized adjustment. Two holes are provided to the left and right of the see-through cover through which wire can be guided for lead sealing to connect the cover to the case. The wire ends are secured with the seal.
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2013-04-01 6 Safety Manual 6.1 Brief description 6 Safety Manual 30 The safety temperature limiter (STB) and safety temperature monitor (STW) enable early and reliable detection of risks which could potentially result in personal injuries, environmental damage, or destruction of the production plant and production materials. Its task is to reliably monitor process variables such as temperature or pressure and to switch the plants to an operationally safe status in the event of malfunctions.
6.2 Safety temperature monitor (STW) The safety temperature monitor is a device that is automatically reset when activated once the probe temperature has fallen below or risen above the set limit value by an amount equal to the switching differential. Possible settings: monitoring for limit value overrange or underrange. Modes of operation: - Minimum requirements: 2B, 2K, 2P - Additional requirements met: 2N, 2D 6.2.
2013-04-01 6.3 6 Safety Manual 32 Safety temperature limiter (STB) The safety temperature limiter is a device that is permanently locked after responding. Manual reset using the key is possible once the probe temperature has fallen below / has exceeded the limit value by the amount of the switching differential. Possible settings: monitoring for overrange or underrange.
Automatic electrical controls for household and similar use – Part 2–9: Particular requirements for temperature sensing controls - EN 61326 - DIN EN ISO 13849-1 PLe - UL 60730-2-9 - According to the Pressure Equipment Directive 6.5 Validity of the safety manual H 6.6 The evaluation described in this Safety Manual in terms of functional safety and display of certificates applies to the specified versions of temperature monitoring units including probe versions.
6 Safety Manual 2013-04-01 34 Table 1: Achievable SIL Variant Connected sensors Sensor system Logic ar- Achievable SIL architecture chitecture 1 1x Pt100 2-wire circuit 1oo1 1oo2D SIL2 1a 2x Pt100/1000 2-wire circuit 1oo2 1oo2D SIL3 2 2x Pt100/1000 3-wire circuit 1oo2 1oo2D SIL3 3 2x thermocouple 1oo2 1oo2D SIL3 4 1x Pt100/1000 2-wire + 3- 1oo2 wire circuit 1x thermocouple 1oo2D SIL3 5 STB/STW 701155 without sensor system 1oo2D architecture No probe or use of 4 to 20 mA This m
for the SIL qualification of the overall plant. The plant operator must always determine the PFDavg and/or PFH value of the overall safety chain to evaluate the achieved SIL. Requirements regarding proof-check interval and lifetime apply only in terms of functional safety. Requirements as specified by DIN EN 14597 are defined in this Operating Manual B701155.0 and are independent of the requirements of this Safety Manual.
6 Safety Manual 2013-04-01 6.7 36 Standards and definitions Table 2: Terms and abbreviations according to DIN EN 14597 Abbreviation Explanation Type 2 Mode of operation for which the manufacturing variation and migration of the operating value, operating duration, or operating procedure has been checked. Type B Micro disconnection in operation, corresponding contact disconnection at at least one pole to provide functional reliability.
Table 3: Terms and abbreviations according to DIN EN 61508 and DIN EN 61511 Name Description Actuator Part of a safety instrumented system that intervenes in the process to achieve a safe state. EUC EUC (equipment under control) Equipment, machine, apparatus, or plant used for manufacturing, shaping materials, for transport, medical purposes, or other activities.
6 Safety Manual 2013-04-01 38 Table 3: Terms and abbreviations according to DIN EN 61508 and DIN EN 61511 Name Description Safety function A function that is performed by an E/E/PE safety-related system, safety-related system based on other technology, or external equipment for reducing risk with the goal of achieving or maintaining a safe state for the EUC taking into consideration a specified dangerous event Safety integrity The probability that a safety-related system will perform the required sa
Table 3: Terms and abbreviations according to DIN EN 61508 and DIN EN 61511 Name Description Lambda: λSD Rate of detected safe failures per hour Lambda: λSU Rate of undetected safe failures per hour BPCS Basic Process Control System DC Diagnostic Coverage FIT Failures In Time (1 × 10-9 per h) HFT Hardware Fault Tolerance PFD Probability of Failure on Demand PFDavg Average Probability of Failure on Demand MooN Architecture with M out of N channels MTBF Mean Time Between Failures MTTR M
6 Safety Manual 2013-04-01 6.8 Safety-related parameters related to the temperature monitoring unit The following parameters were calculated by means of an FMEDA component under the following conditions: - Error models corresponding to requirements of DIN EN 61508 for conformity with SIL2 or SIL3 - Failure rate of components according to the RDF 2000 UTE C 80-810 standard and SN 29500 - Sensors were combined as a subsystem in the following 6 variants: 6.8.
6.8.2 Failure rates and SFF for type 701155/X-XX-025X-XXXX-25 (AC/DC 24 V) Table 5: Variant λs [Fit] λdd [Fit] λdu [Fit] SFF PFH (1/h) PFD avg 1 919.23 306.82 34.24 96 % 7.22 e-9 3.19 e-4 1a 919.23 306.82 34.24 96 % 3.71 e-9 1.63 e-4 2 886.19 303.86 34.24 96 % 3.71 e-9 1.63 e-4 96 % 3.75 e -9 1.64 e-4 -9 1.69 e-4 1.61 e-4 3 947.18 325.86 37.89 4 953.24 350.21 40.59 96 % 3.85 e 5 938.89 323.57 36.89 96 % 3.
6 Safety Manual 2013-04-01 6.9 42 Determining the Safety Integrity Level (SIL) The achievable Safety Integrity Level is determined by the following safety-related parameters: - Average probability of dangerous failures of a safety function on demand (PFDavg), - Hardware fault tolerance (HFT) and - Safe failure fraction (SFF). The specific safety-related parameters for the measuring system of the JUMO safetyM STB/STW Ex can be found in the table in the "Safety-related parameters" chapter.
Table 7: Low demand table PFD Safety Integrity Level (SIL) Operating mode with low demand rate PFDavg (low demand mode) 4 ≥ 10-5 to < 10-4 3 ≥ 10-4 to < 10-3 2 ≥ 10-3 to < 10-2 1 ≥ 10-2 to < 10-1 The sensor, logic unit, and actuator together form a safety-related system that performs a safety function.
6 Safety Manual 2013-04-01 6.9.1 44 Safety integrity of the hardware According to DIN EN 61508, a distinction must be made between systems of type A and systems of type B.
6.9.2 Safety-relevant system features Device versions differ in the following architectures: The evaluation unit of the JUMO safetyM STB/STW Ex in the STW and STB versions is implemented as 1oo2D architecture. Figure 2: The types with a single sensor are executed in one-channel sensor systems (1oo1) The following are monitored: - Probe break - Probe short circuit - Random hardware failure in one channel Figure 3: The variants with two sensors are consistently structured with two channels.
6 Safety Manual 2013-04-01 46 Table 9: Safety feature Requirement / comment SIL The sensor system is included in the SIL evaluation SIL2 Operating mode concerning safety function Operating mode with lower and higher demand rate possible on a customer-specific basis Safety-critical inputs Temperature sensor inputs 4 to 20 mA current loop Safety-relevant inputs Setup and parameterization Safety-critical output Alarm contact limit value Subsystem type Type B Safety architecture (JUMO safetyM S
Table 9: Safety feature Requirement / comment Average failure probability of a safety SIL2: function on demand (overall system) Low demand: PFDavg < 10-2 High demand: PFH < 10-6 Interval for repeat test No repeat test Planned operating duration 10 years Architecture according to DIN EN ISO Sensor system, one-channel: Cat. 2 13849-1 SIL3: Low demand: PFDavg < 10-3 High demand: PFH < 10-7 Sensor system, two-channel: Cat. 3 MTTFd-DCavg according to DIN EN ISO 13849-1 Table K.
6 Safety Manual 2013-04-01 48 Table 10: Terms and abbreviations according to DIN EN ISO 13849 Formula symbol or Description abbreviation Definition or location PL (a, b, c, d, e) Description for the Performance Level Table 3 AOPD Active Opto-electronic Protective Device (e.g.
Table 10: Terms and abbreviations according to DIN EN ISO 13849 Formula symbol or Description abbreviation Definition or location K1A, K1B Contactors Appendix I L, L1, L2 Logic 6.2 LVL Programming language with limited language range 3.1.34 M Motor Appendix I MTTF Mean time to failure Appendix C MTTFc Mean time to critical failure 3.1.25 MTTFd Mean time to dangerous failure n, N, N Number of units Nlow Number of SRP/CS with PLlow in an SRP/CS combination 6.
6 Safety Manual 2013-04-01 50 Table 10: Terms and abbreviations according to DIN EN ISO 13849 Formula symbol or Description abbreviation Definition or location SW1A, SW1B, SW1 Position switch Appendix I SIL Safety Integrity Level Table 4 SK (Cat.) Category (B, 1, 2, 3, 4), structure as basis to achieve a certain PL SRASW Safety-Related Application Software 4.6.3 SRESW Safety-Related Embedded Software 4.6.
Table 11: Achievable PL Variant Connected sensors Sensor sys- Logic ar- Achievable PL tem architec- chitecture ture 1 1x Pt100 2-wire circuit 1oo1 1oo2D PLd 1a 2x Pt100/1000 2-wire circuit 1oo2 1oo2D PLe 2 2x Pt100/1000 3-wire circuit 1oo2 1oo2D PLe 3 2x thermocouple 1oo2 1oo2D PLe 4 1x Pt100/1000 2-wire and 3- 1oo2 wire circuit 1x thermocouple 1oo2D PLe 5 STB/STW 701155 without sensor system 1oo2D architecture No probe or use of 4 to 20 mA This means the sensor is not taken into
6 Safety Manual 2013-04-01 6.11.1 52 DIN EN ISO 13849-1 Performance Level calculations – low voltage 230 V Table 12: Variant MTTFd DCavg CCF PL 1 100 years3 (336 years) 90 % 80 PLd 1a 100 years3 (336 years) 90 % 80 PLe 2 100 years3 (339 years) 90 % 80 PLe 3 100 years3 (316 years) 90 % 80 PLe 4 100 years3 (312 years) 90 % 80 PLe 5 100 years3 (326 years) 91 % 80 See above table 6.11.
6.11.3 Contribution to risk minimization through the control system The objective of compliance with the overall draft procedure for the machine is to achieve the safety objectives (see 4.1 in DIN EN 13849-1). The draft of the SRP/CS to provide the required risk minimization is an integral part of the overall draft procedure for the machine. The SRP/CS provides the safety function(s) with a PL that achieves the required risk minimization.
6 Safety Manual 2013-04-01 54 Schematic representation of a combination of safety-related parts of controls for processing a typical safety function Figure 4: 1 SRP/CS a i ab I SRP/CS b i bc L I Input L Logic O Output 1 Start event, e.g. manual actuation of a key, opening of a protective guard, interruption of the beam of an AOPD 2 Drive unit of the machine, e.g.
6.12 Performance Level For application in this part of DIN EN ISO 13849, the capability of safety-related parts to perform a safety function is expressed through the determination of a Performance Level. The PL must be assessed for each selected SRP/CS and/or SRP/CS combination that performs a safety function.
2013-04-01 6 Safety Manual Table 15: Relationship between the categories DCavg, MTTFd of each channel and PL PL Performance Level 1 MTTFd of each channel = low 2 MTTFd of each channel = medium 3 MTTFd of each channel = high 56
The diagram above shows the different possible combinations for assessing the category with DCavg (horizontal axis) and the MTTFd of each channel (bars). The bars in the diagram show the three MTTFd areas of each channel (low, medium, and high) that can be selected to achieve the required PL.
2013-04-01 6 Safety Manual 58 6.14 Other applicable device documentation For the JUMO safetyM STB/STW Ex the measures, values, and requirements specified in this Operating Manual regarding installation, electrical connection, function, and startup must be observed. 6.15 Behavior during operation and in the event of a fault Behavior during operation and the event of a fault is described in the Operating Manual.
- Damage and corrosion of temperature probes – protection tubes - Corrosion and correct positioning of the contacts and terminals of cable connections - Seals of terminal heads and cable ducts - Interruptions due to "knocking" on the temperature probe/measuring insert Since the maximum operating temperature influences the drift behavior, the temperature probe should be recalibrated or replaced at certain intervals to ensure reliable and precise temperature measurement.
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7 ATEX 2013-04-01 7 ATEX 7.1 Intended use 68 The JUMO safetyM STB/STW Ex is a safety device according to Directive 94/9 EC, Chapter 1, Article 1, Paragraph (2), which is designed to measure temperatures directly through a resistance probe or thermocouple probe, and other physical measurands such as pressure, with an appropriate transmitter and 4 to 20 mA current input. The specifications and requirements in this Operating Manual must be observed accordingly.
DANGER! Ex approval becomes null and void in the case of non-intended use of the JUMO safetyM STB/STW Ex or noncompliance with the safety requirements of this Operating Manual. V 7.1.0.
70 7 ATEX 2013-04-01 !"# $ % & $ ' ( % ) )( % * % + ,"+ - . % . % ' ) / 012 3 . 3 ( ( 4 4 3 ( !"#! - . .%.
( !"# $ % & $ ' ( % ) )( % * % + ,"+ - . % . % ' ) / 012 3 . 3 ( ( 4 4 3 ( !"#! (- . .%. * % .
2013-04-01 7.3 7 ATEX 72 Meaning of the letter X in the type test certificate The specific circumstances for which the X is added to the end of the test report numbers are as follows: - Switching operations may be performed on the intrinsically safe electrical circuits only when the JUMO safetyM STB/STW Ex, including all supply lines, is de-energized.
- If the JUMO safetyM STB/STW Ex is used in the single-channel device variant to monitor non-electrical ignition sources and a warning is issued on demand, the user must take immediate measures to achieve a safe status. 7.4 7.4.1 Associated intrinsically safe electrical apparatus according to EN 60079-11 Function of intrinsic safety The intrinsically safe ignition protection "i" makes use of the fact that a certain amount of energy is required to ignite a potentially explosive atmosphere.
2013-04-01 7 ATEX 74 electrical circuits cannot have an effect on the intrinsically safe electrical circuits. Brackets are used for the identification marking of the associated apparatus: e.g. II (1) G [Ex ia] II C. Associated electrical apparatus can be used in potentially explosive areas if appropriate protection is provided (ignition protection according to EN 60079-0). If there is insufficient protection, the apparatus must be used outside of the potentially explosive area.
7.4.2 Probe arrangement in the Ex-area The JUMO safetyM STB/STW Ex has the following maximum output data at the intrinsically safe inputs: Uo = 6.0 V; Io = 41.2 mA; Po = 61.8 mW; Co = 36.3 μF; Lo = 20 mH Figure 7: sensor system specified in Chapter 9.13 and Chapter 9.14 does not have zone separation. A The v Please also note the information in Chapter 9.12.
7 ATEX 2013-04-01 7.4.3 76 Explanation of probe temperature classes The listed probes can be used in temperature classes T1 to T6. Table 17: Temperature classes Temperature class Maximum surface temperature of apparatus1 Ignition temperature of the flammable materials T1 450 °C > 450 °C T2 300 °C > 300 < 450 °C T3 200 °C > 200 < 300 °C T4 135 °C > 135 < 200 °C T5 100 °C > 100 < 135 °C T6 85 ? > 85 < 100 °C Temperature classes Item 26.5.1.
Example: A thermocouple is to be used in temperature class T4 (maximum temperature 135 °C, limit is to be reduced 5 K for safety); Highest admissable temperature at the probe tip Ts Ts = 130 °C – 0.9 °C Ts = 129.1 °C The maximum temperature (measured or medium temperature) at the probe tip must therefore not exceed a value of 129.1 °C.
2013-04-01 7.5 7 ATEX 78 Safety device according to EN 50495 The standard EN 50495, which was harmonized within the scope of directive 94/9/EC, formulates requirements for electrical apparatus that performs one or more safety function(s) in terms of explosion protection. Discretely constructed and complex safety devices, of which the protective function is controlled via software are evaluated using measures in EN 50595.
7.5.1 Temperature monitoring unit based on ignition protection "e" – increased safety according to EN 60079-7 7.5.1.1 Function of increased safety Ignition protection for which additional measures are taken in order to use an increased degree of safety to prevent the possibility of the occurrence of inadmissibly high temperatures or sparks or electric arcs at or in parts of electrical apparatus where these would not occur in standard operation. 7.5.1.
2013-04-01 7 ATEX 80 ous state can occur when all relevant factors such as response time and, if applicable, temperature overshoot of the monitored apparatus including the JUMO safetyM STB/STW 70155 are taken into account. To prevent unintended changes to the set parameters, the JUMO safetyM STB/STW must be sealed according to Chapter 5.8 of this Operating Manual or a keypad lock or level inhibit must be used according to Chapter 8.4. 7.5.1.
"The automatic safety devices shall only be capable of being reset by the use of a tool or a key." The requirements of EN 60079-2 are met for the relevant ignition protection. Definition from EN 60079-2 for type py: Pressurized enclosure that reduces the equipment protection level (EPL) within the pressurized case from Gb to Gc. Definition from EN 60079-2 for type pz: Pressurized enclosure that reduces the equipment protection level (EPL) within the pressurized case from Gc to "non-hazardous".
2013-04-01 7 ATEX 82 To prevent unintended changes to the set parameters, the JUMO safetyM STB/STW must be sealed according to Chapter 5.8 of this Operating Manual or a keypad lock or level inhibit must be used according to Chapter 8.4. 7.6 7.6.
structure. If only a passive sensor is connected, this corresponds to variant 1 of Table 1: "Achievable SIL" in Chapter 6.6 "Connection possibilities of the sensors (SIL)". This version meets the requirements for IPL 1 and is marked with (b1) accordingly. EN 13463-6 requires that automatic restart of monitored apparatus must not take place without a reset of the JUMO safetyM STB/ STW Ex.
2013-04-01 7 ATEX 84 the transmitter. The requirements from Table 1 of EN 13463-6 apply. The signal is fed in via the 4 to 20 mA input. v Setting is according to Chapter 8.2.2 onwards The limit value must be determined according to the relevant use and/or application.
2013-04-01 7 ATEX 85
2013-04-01 8 Configuration level 8.1 Navigation principle 8 Configuration level All the parameters are freely accessible ex works, but they can be locked via the setup program. v Chapter 10.3 "Forgotten the code?" Parameters of the configuration level which are not required are automatically hidden depending on the setting.
8.2 Analog inputs 8.2.1 Connection Comment Two sensors This setting is provided for dual probes or for two different probes. Each of the two analog inputs is monitored separately for a probe break or probe short-circuit. Single Pt100 in 2-wire circuit V Caution: When only one probe (SIL2) is connected, the temperature limiter device is reduced from SIL3 to SIL2. However, the internal 2-channel structure (1oo2D) in the device still remains.
8 Configuration level 2013-04-01 8.2.
Value range (factory setting in bold) Parameter Comment 8.2.3 Offset 1 Using Offset1, a measured value at the analog input can be corrected by the value entered over the entire measuring range. 8.2.4 Resistivity 1 Analog-input1 lead wire resistance 0.0 to 30.0 ohm in 2-wire circuit This value is used to compensate the resistance of the probe line and depends on the line length. Enter the ohmic resistance of the probe line here to achieve the best possible temperature measurement. 8.2.
8 Configuration level 2013-04-01 8.2.
Value range (factory setting in bold) Parameter Comment 8.2.9 Offset 2 Using Offset2, a measured value at the analog input can be corrected by the value entered over the entire measuring range. 8.2.10 Resistivity 2 Analog-input2 lead wire resistance 0.0 to 30.0 ohm in 2-wire circuit This value is used to compensate the resistance of the probe line and depends on the line length. Enter the ohmic resistance of the probe line here to achieve the best possible temperature measurement. 8.2.
8 Configuration level 2013-04-01 8.3 92 Limiter/monitor Value range (factory setting in bold) Parameter Comment 8.3.1 Device function Safety temperature limiter (STB) initial startup: STB initial startup, STB, Regardless of the switching status of the alarm relay STW output prior to power failure, the STB remains locked when power returns. The purpose of this factory setting is to ensure that the device will be in a safe switched-off state when the voltage supply is switched on for the first time.
Value range (factory setting in bold) Parameter Comment 8.3.2 Switching behavior Min. alarm: Max. alarm, min. alarm If the value falls below the limit value, the alarm relay output switches OFF. LEDs K1 and K2 light up red and the measured values flash on the display. Min.
8 Configuration level 2013-04-01 Parameter Value range (factory setting in bold) Comment Max. alarm: If the value exceeds the limit value, the alarm relay output switches OFF. LEDs K1 and K2 light up red and the measured values flash on the display. Max.
Value range (factory setting in bold) Parameter Comment 8.3.3 Limit value, hysteresis Limit value alarm: -200 to 0 to +850 If this value is exceeded or not reached, this affects the Depends on setting range alarm relay output depending on the switching behav- min. and max. ior. 8.3.4 Pre-alarm function H Hysteresis limit value: Difference between the switch-off and switch-on threshold, e.g. for rising and falling temperatures.
8 Configuration level 2013-04-01 Value range (factory setting in bold) Parameter Comment 8.3.6 Limit value difference, hysteresis Limit value difference monitoring: 0 to 50 to 100 If the value of the temperature difference of the analog input 1-2 is exceeded, the alarm relay output is switched. Hysteresis difference monitoring: Difference between the switch-off and switch-on threshold, e.g. for rising and falling differential values.
8.4 Binary input Value range (factory setting in bold) Parameter Comment 8.4.1 Function This sets the function that should be controlled by the binary input. The binary input does not have a function No function The binary input performs a reset as described in Chapter 8.3.1 Unlocking "Device function" The function only responds to the switching edge from "open" to "closed" state. Protection against unauthorized key operation Key lock Configuration level is locked.
8 Configuration level 2013-04-01 8.5 98 Analog output Parameter Comment 8.5.1 Function Here, the measured value that is to be shown at the analog output is set. Main measured value: With the max. alarm switching behavior, the greater of the two measured values is shown; with the min. alarm, the lower of the two measured values is shown.
Value range (factory setting in bold) Parameter Comment 8.5.5 Error signal If, for the measured value 1 or 2, the value is exceeded, not reached, or a diagnostic error occurs, the current or voltage value set on the analog output is output as a so-called error signal. For signal type 4 to 20 mA 2013-04-01 3.4 or 21.2 mA For signal type 0 to 20 mA 0 or 21.2 mA For signal type 2 to 10 V 1.7 or 10.4 V For signal type 0 to 10 V 0 or 10.
8 Configuration level 2013-04-01 100 8.5.6 Behavior when leaving the scaling range The standard signal range of the analog output is limited as follows according to the recommendation of Namur NE 43: Signal type Lower limit Upper limit 0: 4 to 20 mA 3.8 mA 20.5 mA 1: 0 to 20 mA 0 mA 20.5 mA 2: 2 to 10 V 1.8 V 10.2 V 3: 0 to 10 V 0V 10.2 V Standard signal for analog output 20.5 mA 20 mA k Factory setting 4 mA 3.
8.6 Display/operation Parameter Comment Value range (factory setting in bold) 8.6.1 Language German German, English, French English French 8.6.2 Unit A unit for the measured value can be assigned here. °C, °F, %, text °C A If the unit is changed to °F, the measured value is converted. All other values referring to the measured value (e.g. limit value) remain unchanged. 8.6.3 Decimal place °F % Text: Via the setup program, 2 characters can be entered here for another unit, e.g. Pa (Pascal).
8 Configuration level 2013-04-01 102 Value range (factory setting in bold) Parameter Comment 8.6.5 Contrast Screen contrast: Difference in brightness between black and white pixels 0 to 5 to 10 8.6.6 Backlight Here, the background lighting of the display is set. Off, On, During operation Off: Always switched off On: Always switched on During operation: The background lighting is only switched on when the keys are operated and it lights up until the time for the time-out light has expired. 8.6.
8.7 Service Parameter Comment Value range (factory setting in bold) 8.7.1 Limit switching cycle Limit value for relay switching cycles 0 to 99999 Here, the limit value for the admissible relay switching cycles is set. If the counter value for Current switching cycles is greater than this value, the display values flash and the alarm relay output drops out. If "0" is set the function is inactive. 8.7.
9 Technical data 2013-04-01 9 Technical data 9.1 Analog inputs 104 RTD temperature probes Description Measuring range Accuracy 2/3-wire circuit1 Ambient temperature influence Pt100 DIN EN 60751 -200 to +850 °C 0.5 % / 0.1 % 50 ppm/K Pt1000 DIN EN 60751 -200 to +850 °C 0.5 % / 0.
NiCr-Ni "K" DIN EN 60584 -200 to +1372 °C 0.4 % NiCrSi-NiSi "N" DIN EN 60584 -100 to +1300 °C 0.4 % 100 ppm/K 100 ppm/K Pt10Rh-Pt "S" DIN EN 60584 0 to +1768 °C 0.4 % 100 ppm/K Pt13Rh-Pt "R" DIN EN 60584 0 to +1768 °C 0.4 % 100 ppm/K Pt30Rh-Pt6Rh "B" DIN EN 60584 300 to 1820 °C 0.4 % 100 ppm/K W3Re-W25Re "D" 0 to 2495 °C 0.
9 Technical data 2013-04-01 9.2 106 Analog output Current Signal type Accuracy Residual ripple Load influence Temperature ence influ- Load resistance 4 to 20 mA ≤ 0.5 % ±0.5 % at 300 Ω ±0.05 mA / 100 Ω 150 ppm/K ≤ 500 Ω ≤ 0.5 % ±0.5 % ±15 mV 150 ppm/K ÷ 500 Ω 0 to 20 mA Voltage 2 to 10 V 0 to 10 V 9.3 Binary input Connection Function 1 potential-free contact Unlocking, key lock, level inhibit can be configured 9.
9.
9 Technical data 2013-04-01 9.7 Test voltages according to EN 60730, Part 1 Input and output against voltage supply - With a voltage supply AC 110 to 240 V +10 %/-15 % 3.7 kV/50 Hz - With a voltage supply AC/DC 20 to 30 V, 48 to 63 Hz 3.7 kV/50 Hz 9.
EMC According to DIN EN 14597 and standards from the standard series DIN EN 61326 Interference emission Class B Interference immunity Evaluation criteria FS according to DIN EN 14597, regulation and control devices (RS) 1. All specifications refer to the measuring range end value 9.10 Case Material Polycarbonate Flammability class UL 94 V0 Electrical connection On the front via screw terminals up to max. 2.5 mm2 Maximum tightening torque of the screws: 0.
9 Technical data 2013-04-01 110 9.11 Approvals/approval marks Approval mark Testing agen- Certificates/certification cy numbers DIN DIN CERTCO SIL2, SIL3 TÜV Nord SAS-0190/2006-3, V2.
tion must securely prevent friction sparks, contact-breaking sparks, and impact sparks. Otherwise there is a risk of ignitable sparks. No other precautions have to be taken when used in EPL Gb (zone 1).
9 Technical data 2013-04-01 9.13 Probes for the operating medium air Note: because of the high response accuracy, the use of thermowells (immersion sleeves) is not admissible. Current type designation Probe type Temperature range Nom.
Current type designation Probe type Temperature range Nom.
9 Technical data 2013-04-01 9.14 Probes for water and oil Note: because of the high response accuracy, the use of thermowells (immersion sleeves) is not admissible. Current type designation Probe type Temperature range Nom.
Note: because of the high response accuracy, only use thermowells (immersion sleeves) that are included in the scope of delivery. Current type designation Probe type Temperature range Nom.
9 Technical data 2013-04-01 116 9.15 Probes for air, water, and oil Note: because of the high response accuracy, the use of thermowells (immersion sleeves) is not admissible. Current type designation Probe type Temperature range Nom. length mm Process connection 1 × Pt100 2 × NiCr-Ni, type "K" max. 300 °C 250 Screw-in threat G1/2 max.
10 Setup program The program and the connection cable are available as accessories and offer the following possibilities: - Simple and easy-to-use parameterization and archiving via PC - Easy parameter duplication for identical types of devices 10.1 Minimum hardware and software requirements: - Microsoft1 Windows 2000, XP, VISTA, 7-32, 7-64 - 200 MB HDD - 1 GB RAM h Connect the device to the PC using the USB cable 10.
2013-04-01 10 Setup program 118 10.3 Forgotten the code? If you forget the code, it can be read out via the USB interface and the setup program. h Use Data transfer from device. The read-out code now appears in the setup program. It can now be retained or changed. If "0" is set and transferred to the device, the code request is deactivated and the configuration level is freely accessible. 10.
10.5 Pressure signal display via current input The pressure signal is connected to the JUMO safetyM STB/STW Ex with a pressure transmitter as a standard signal of 4 to 20 mA via a supply isolating amplifier.
10 Setup program 2013-04-01 10.5.1 Pressure signal configuration via setup program Step Action 1 h Connect the device to the PC via USB and start the setup program 2 h In the Display/Operation menu, set Text and Pa for Unit: and confirm with OK.
Step Action 3 h In the Analog input menu, set Single 4 to 20 mA. Further Description input fields for scaling appear. h For both channels, enter Start: 0 and End: 500 and confirm with OK. 4 h In the Limiter/Monitor menu, set STB or Initial STB commissioning. Set Switching behavior: to Min. alarm and confirm with OK. h Enter the required limit value (in Pa) and hysteresis.
10 Setup program 2013-04-01 Step Action 5 h Transfer the data to the device An overview of the parameters appears 6 h Following successful data transfer disconnect the USB 7 The device now shows a pressure between 0 and 500 Pa. If the pressure falls below 200 Pa, the alarm relay output is switched off. connection.
11 Alarm messages These can appear as follows: Alarm display Cause 5 flashing horizontal lines: Measured value error No valid value can be displayed Measured value overrange The measured value is too high, is outside the measuring range, or the probe is broken. Remedy h Check error messages on the device h Contact the JUMO Service department v Chapter 2.4 "Service addresses" h Change the display to 2 measured values. This makes it possible to detect which channel is defective.
12 Error messages 2013-04-01 12 124 Error messages These error messages are displayed one below the other. Error display (Err) Origin Cause/remedy Internal The set limit value for relay switching cycles has been reached h Increase the limit value for the relay switching cycles v Chapter 8.7.1 "Limit switching cycle" Instead of the bell, a cross appears and the error message can be acknowledged. Terminal temp.
Error display (Err) Origin Cause/remedy Measured value missing Internal When the error status "Measured value" is signaled by the channel Probe short-circ. External then the diagnosis function tries to show the precise error on the basis of the read measured value. Operating access1 Internal The diagnosis function communicates with the STB/STW. Setup access Internal The setup program is communicating with the STB/STW. CRC calibr.1 Internal Checksum error of the EEPROM calibration data.
12 Error messages 2013-04-01 126 Error display (Err) Origin Cause/remedy Watchdog1 Internal A watchdog reset has occurred. Overvoltage1 Internal The uncontrolled secondary supply voltage is too high. Acknowledgement is possible. Frequency1 Internal Error of independent time base. EEPROM defective1 Internal Error during internal communication with the EEPROM. Stack1 Internal Error in the memory area reserved for the stack.
Error display (Err) Origin Cause/remedy FLASH defective1 Internal An error was detected during the cyclic memory test of the ROM. RAM defective1 Internal An error was detected during the cyclic memory test of the RAM. CRC config.1 Internal An error was detected by the checksum test (CRC16) in the configuration of the diagnosis function. CRC calib.1 Internal An error was detected by the checksum test (CRC16) in the calibration data of the diagnosis function.
12 Error messages 2013-04-01 Error display (Err) Footnote 1 Origin 128 Cause/remedy If the error cannot be acknowledged despite repeated switching off and on, the device must be repaired by JUMO. h Return the device v Chapter 2.
13 What to do, if ... Description Cause The following appears in Setup program transmitting data. The monitoring function switches off briefly durthe display: ing data transmission and the device re-starts. Remedy - Wait until data transmission has finished. The measured value The device is in the alarm range h Check the limit value in the configuration level. flashes in the top display. LEDs K1 and K2 are lit red.
13 What to do, if ... 2013-04-01 Description Cause ... alarm relay output is not closed between terminals 14 and 15 although the OK LED is lit green (in valid range). The integrated fuse cut-out is defective, caused by an excessive relay current. ... the display is dark, only the LEDs are lit Display shut-down after time-out was activated. 130 Remedy h Measure terminal 5 and 7 of the relay when the LED K1 is lit green using a continuity test device. h The device must be returned to JUMO for repair.
14 Information for devices with extra code 062 GL The following information supplements or replaces the existing specifications. 14.1 Technical data Ambient conditions according to application category C for closed areas Temperature 0 to 55°C ≤ 100 % rh ≤ 0.7 g Relative air humidity Vibration Inspection basis: GL design specifications & directives: EMC 1 Software requirement class: 4 14.2 Alarm messages v Chapter 11 "Alarm messages" 14.3 Locks The configuration level can be locked with a code.
2013-04-01 H H 14 Information for devices with extra code 062 GL 132 For service, the device must be returned to the main factory. According to the recommendation of Germanischer Lloyd, availability of a replacement device should be ensured for certain applications. It is recommended that a printout of the configuration parameters (setup program) and the technical documents for the JUMO safetyM STB/STW Ex (connection diagram) are kept available on site (or requested if necessary).
15 Behavior of outputs Operating status Relay output alarm Relay output pre-alarm KV Analog output Inactive Inactive 0 mA Initialization Initialization phase after mains voltage – ON (for approx. 10 seconds) 0V Setup communication During reading-writing of the configuration Inactive Pre-alarm moni- Scaled analog signal is toring active being output (for approx. 5 seconds) v Chapter v Chapter 8.5 8.3.
15 Behavior of outputs 2013-04-01 15 134 Behavior of outputs Operating status Relay output alarm Relay output pre-alarm KV Analog output Probe break, probe short circuit Inactive Active Error signal is being output (e.g. input 1) After probe break, probe short circuit (STW) v Chapter 8.5.5 Monitoring of the limit Pre-alarm moni- Scaled analog signal is value active toring active being output v Chapter 8.3.2 After probe break, probe short circuit (e.g.
15 Behavior of outputs Operating status Relay output alarm Relay output pre-alarm KV Analog output Difference – alarm (STB function) Inactive Active Error signal is being output v Chapter 8.5.5 Difference – alarm inactive again (STB function) Inactive Unlocking possible After acknowledgement of difference – alarm (STB Monitoring of the limit function) value active Pre-alarm moni- Scaled analog signal is toring active being output v Chapter v Chapter 8.5 8.3.4 v Chapter 8.3.
15 Behavior of outputs 2013-04-01 15 136 Behavior of outputs Operating status Relay output alarm Relay output pre-alarm KV Internal errors safety channel inactive again (STB) Inactive Pre-alarm moni- Scaled analog signal is toring active being output Unlocking possible Internal errors safety channel after acknowledge- Monitoring of the limit ment (STB) value active v Chapter 8.3.2 v Chapter 8.3.4 Analog output v Chapter 8.
2013-04-01 15 Behavior of outputs 137
JUMO GmbH & Co. KG JUMO Instrument Co. Ltd. JUMO Process Control, Inc. Street address: Moritz-Juchheim-Straße 1 36039 Fulda, Germany Delivery address: Mackenrodtstraße 14 36039 Fulda, Germany Postal address: 36035 Fulda, Germany Phone: +49 661 6003-0 Fax: +49 661 6003-607 E-mail: mail@jumo.net Internet: www.jumo.net JUMO House Temple Bank, Riverway Harlow - Essex CM20 2DY, UK Phone: +44 1279 63 55 33 Fax: +44 1279 63 52 62 E-mail: sales@jumo.co.uk Internet: www.jumo.co.
