Owner's manual

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Series 442 Installation and Operating Instructions

1 SAFETY NOTES

Safe and secure operation of the head transmitter can only be guaranteed if the operating instructions and all safety notes

contained are, understood, and followed.

1.1 Correct Use

The unit is a universal, presettable temperature transmitter for resistance thermometer (RTD), thermocouple (TC) as well as

resistance and voltage sensors. The unit is constructed for mounting in a connection head (form B) and field housing. The

manufacturer cannot be held responsible for damage caused by misuse of the unit.

Separate Ex (hazardous area) documentation is attached with this operating manual as drawing M006601, for measurement

systems in hazardous areas. The installation conditions and connection values indicated in these instructions must be followed!

1.2 Installation and operation

The unit is constructed using the most up-to-date production equipment and complies with the safety requirements of the EU

guidelines. If it is installed incorrectly or is misused then certain application dangers can occur. Trained personnel must do

installation, wiring and maintenance of the unit. These personnel must have read and understood these instructions and must

follow them to the letter.

1.3 Operational safety - Hazardous areas

When installing the unit in a hazardous area the national safety requirements must be met. Make sure that all personnel are

trained in these areas. The measurement and safety rules must be followed in all these installations.

2 FUNCTION AND SYSTEM CONSTRUCTION

2.1 Function

Electronic monitoring and transformation of various input signals into an analog output signal in industrial temperature

measurement. The head transmitter is mounted in a connection head (form B) or separated from the sensor in a field housing.

Setting up of the head transmitter is done using a “HART



Communicator DXR 275” or PC and configuration software.

2.2 Measurement system

Transforming the following input signals:

• Resistance thermometers (RTD) and resistance sensors (in 2, 3 or 4 wire connection systems)

• Thermocouples (TC)

• Voltage sensors into a scalable analog output signal (4…20 or 20…4) mA

Fault monitoring of:

• Measurement range override or undercut

• Sensor breakage and short circuit - not for thermocouples (TC)

3 INSTALLATION

3.1 Installation conditions

Ambient temperature: (-40 to 85) °C [-40 to 185] °F (For hazardous areas, see drawing M006601)

Installation area: Field housing; connection head Form B according to DIN 43 729

Installation angle: No limit

Safety notes: The unit must only be powered by a power supply that operates using an IEC 61010-1 compliant energy limited

circuit.

3.2 Installation

• Feed the sensor leadwires through the central hole in the head transmitter

• Position the head transmitter in the connection head in such way so that the current output terminals (terminals 1 and 2) are

towards the cable entry gland.

• Feed the mounting screws (M4 x 20 mm long for form B heads) through the holes in the head transmitter.

• Screw the head transmitter into the field housing using a screwdriver while not over tightening.

Summary of content (11 pages)

PAGE 1
Series 442 Installation and Operating Instructions 1 SAFETY NOTES Safe and secure operation of the head transmitter can only be guaranteed if the operating instructions and all safety notes contained are, understood, and followed. 1.1 Correct Use The unit is a universal, presettable temperature transmitter for resistance thermometer (RTD), thermocouple (TC) as well as resistance and voltage sensors. The unit is constructed for mounting in a connection head (form B) and field housing.
PAGE 2
4 WIRING 4.1 Overview (11.5 to 30) V dc (4 to 20) mA Figure 4-1 Head transmitter wiring Pos. A 4.2 Measurement unit connection Attention: Switch off power supply before opening the housing cover. Do not install or connect the unit to power. If this is not followed parts of the electronic circuit will be damaged. • Sensors: Connect the sensor leads to the respective head transmitter terminals (Terminals 3 to 6) by following the wiring diagram (see figure 4-1).
PAGE 3
Connection of HART modem using TransComm Software Figure 4-3 Electrical connection of the HART modem A = HART modem B = Loop power supply C = HART transmitter D = PLC with a passive input 4.4 Shield grounding Please take note when installing the head transmitter remotely in a field housing. The shield on the (4 to 20) mA signal output must have the same potential as the shield at the sensor connections! When using grounded thermocouples, shielding of the output (4 to 20) mA cable is recommended.
PAGE 4
6.4 Quick Setup The head transmitter left the factory with a default parameter configuration. If no customer specific configuration was mentioned on the order then the default parameter configuration is constructed as follows: Sensor Pt100 (RTD) Connection mode 3-wire Measurement range and units (0 to 100) °C Using the Quick Setup the operator is led through all the most important unit functions that must be setup for standard measurement operation of the unit.
PAGE 5
Figure 6-2 HART function matrix 6.6 Description of unit functions The following table contains a listing and description of all functions of the HART protocol that can be used for setting up the temperature transmitter. Note: Factory default values are shown in bold text. The HART operating module (DXR275) display is indicated by the following symbol.
PAGE 6
Function group: BASIC CALIBRATION Type of sensor Entry of sensor used: Sensor type Range start (-10 to 75) mV -10 mV 75 mV (10 to 400) Ω 10 Ω 400 Ω (10 to 2000) Ω 10 Ω 2000 Ω Pt100 DIN -200 °C [-328 °F] Pt100 JIS -200 °C [-328 °F] Pt500 -200 °C [-328 °F] Pt1000 -200 °C [-328 °F] Ni100 -60 °C [-76 °F] Ni500 -60 °C [-76 °F] Ni1000 -60 °C [-76 °F] Polynom RTD -270 °C [-454 °F] Type B 0 °C [32 °F] Type C 0 °C [32 °F] Type D 0 °C [32 °F] Type E -270 °C [-454 °F] Type J -210 °C [-346 °F] Type K -270 °C [-454 °F]
PAGE 7
2 wire comp. • V2H7 Failsafe mode • V2H8 Entry of leadwire compensation on RTD 2 wire connection Entry: (0.00 to 30.00) Ohm 0.00 Ohm Entry of failure signal on sensor fracture or short circuit. Entry: Max (≥ 21.0 mA) Min (≤ 3.
PAGE 8
Default values Entry: 182 (Reset to factory default settings) • V9H5 0 Output current Display of the actual output current signal. • V9H6 Simulation mode • V9H7 Simulation value • V9H8 Security locking • V9H9 Entry of simulation mode. Entry: Off On Off Entry of simulation value (current). Entry: (3.58 to 21.7) mA 0.00 mA Release code for setting up.
PAGE 9
6.7 Configuration using HART protocol and TransComm The configuration of the head transmitter can be done using both the HART protocol and the TransComm software. The following table shows the structure of the interactive menu led operation of TransComm.
PAGE 10
8.2 Application faults without messages General errors Problem Device not reacting Output current < 3.6 mA HART communication not working. Possible cause Supply voltage does not match that specified on the nameplate. No contact between connecting cables and terminals. Remedy Signal cable is wired incorrectly. Check wiring. Electronics are defective. Replace the device. Missing or incorrectly installed communication resistor. Install the communication resistor (250 Ω) correctly.
PAGE 11
Application errors for TC sensor connection Problem Possible Cause Incorrect sensor orientation. Heat conducted by sensor. Device programming is incorrect (scaling). Incorrect thermocouple type (TC) configured. Measured value is incorrect/inaccurate Incorrect comparison measuring point set. Interference via the thermocouple wire welded in the thermowell (interference voltage coupling). Offset incorrectly set. Faulty sensor. Failure current (≤ 3.6 mA or ≥ 21 mA) Sensor is connected incorrectly.