TELEDYNE ANALYTICAL INSTRUMENTS OPERATING INSTRUCTIONS Series Model 7500 Infrared Gas Analyzer DANGER HIGHLY TOXIC AND OR FLAMMABLE LIQUIDS OR GASES MAY BE PRESENT IN THIS MONITORING SYSTEM. PERSONAL PROTECTIVE EQUIPMENT MAY BE REQUIRED WHEN SERVICING THIS SYSTEM. HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS INTERNALLY WHICH MAY PERSIST FOR A TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECTED. ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING.
Teledyne Analytical Instruments PRELIMINARY We are grateful for your purchase of Teledyne Analytical Instrumentʼs Model 7500 Infrared Gas Analyzer. • First read this instruction manual carefully until an adequate understanding is acquired, and then proceed to installation, operation and maintenance of the analyzer. Wrong handling may cause an accident or injury. • The specifications of this analyzer are subject to change without prior notice for further product improvement.
Teledyne Analytical Instruments SAFETY PRECAUTIONS Please read this section carefully to ensure using the analyzer in the correct way. The cautionary descriptions listed here contain important information about safety, so they should always be observed. Those safety precautions are ranked in 3 levels, “DANGER”, “CAUTION” and “PROHIBITED”. DANGER Wrong handling may cause a dangerous situation, in which there is a risk of death or heavy injury.
Teledyne Analytical Instruments Caution on piping DANGER In piping, the following precautions should be observed. Wrong piping may cause gas leakage. If the leaking gas contains a toxic component, there is a risk of serious accident being induced. Also, if combustible gas is contained, there is a danger of explosion, fire or the like occurring. • Connect pipes correctly referring to the instruction manual. • Exhaust should be led outdoors so that it will not remain in the locker and installation room.
Teledyne Analytical Instruments Caution on use PROHIBITED • Do not allow metal, finger or others to touch the input/output terminals in the instrument. Otherwise, shock hazard or injury may occur. • Do not smoke nor use a flame near the gas analyzer. Otherwise, a fire may be caused. • Do not allow water to go into the gas analyzer. Otherwise, hazard shock or fire in the instrument may be caused.
Teledyne Analytical Instruments CONTENTS PREFACE .............................................................................................................................2 CAUTION ON SAFETY ..........................................................................................................3 1. OVERVIEW.........................................................................................................................8 2. NAME AND DESCRIPTION OF EACH PART ......................................
Teledyne Analytical Instruments 6.8 Maintenance mode …………………………………………………………………… 57 6.9 Calibration …………………………………………………………………………….. 59 6.9.1 Zero calibration …………………………………………………………… 59 6.9.2 Span calibration ………………………………………………………….. 60 7. MAINTENANCE ................................................................................................... 61 7.1 Daily check ............................................................................................ 61 7.2 Daily check and maintenance procedures ....
Teledyne Analytical Instruments 1. OVERVIEW The Model 7500 infrared gas analyzer measures the concentrations of CO2, CO, CH4, SO2 and O2 contained in sample gas. CO2, CO, CH4 and SO2 are measured by non-dispersion infrared method, while O2 is measured by paramagnetic method. A maximum of 4 components including O2 (a maximum of 3 components for other than O2 measurement) are simultaneously measurable. A high-sensitivity mass flow sensor is used in the detector unit of infrared method.
Teledyne Analytical Instruments 2. NAME AND DESCRIPTION OF EACH PART 2.1 Description of each unit Name Description 1. Handle Draws the analyzer unit from the case. 2. Power switch Turns ON/OFF this analyzer. 3. Switch for back light Turn ON/OFF the back light of display. 4. Display / Operation panel Liquid crystal display and keys for various operational settings are arranged. 5. Sampling gas inlet Port for connecting the sample gas injection pipe. 6.
Teledyne Analytical Instruments 3. INSTALLATION DANGER This unit is not explosion-proof type. Do not use it in a place with explosive gases to avoid explosion, fire or other serious accidents. CAUTION • For installation, observe the rule on it given in the instruction manual and select a place where the weight of gas analyzer can be endured. Installation at an unsuited place may cause turnover or fall and there is a risk of injury. • For lifting the gas analyzer, be sure to wear protective gloves.
Teledyne Analytical Instruments 3.2 Installation of analyzer There are two methods of installing the analyzer. For detailed dimensions, see Chapter 9.3. Note: The mounting method should be selected to meet the installation requirements since the top cover must be detached from the gas analyzer for maintenance and check. Mounting method Conditions Remarks Slide rail No maintenance space is provided at the top.
Teledyne Analytical Instruments Observe the following when connecting the gas pipes. • The pipes should be connected to the gas inlet and outlet at the rear panel of the analyzer, respectively. • Connect the sampling system to the instrument by using corrosion-resistant tube such as Teflon, stainless steel, or polyethylene. In case where there is no danger of corrosion, donʼt use rubber or soft vinyl tube. Analyzer indication may become inaccurate due to the adsorption of gases.
Teledyne Analytical Instruments (2) Sampling gas flow rate A flow rate of sampling gas must be 1 L/min ±0.5 L/min. A flow meter should be provided as shown in Fig. 3-2 to measure flow rate values. (3) Preparation for standard gas Prepare the standard gas for zero/span calibration.
Teledyne Analytical Instruments (6) Example of sampling system configuration The system configuration may vary depending upon the nature of measured gas, coexistent gases or application. A typical configuration diagram is shown in Fig. 3-2. Since a system configuration depends upon measured gas, consult with Teledyne. Fig.
Teledyne Analytical Instruments 3.5 Wiring method Caution on wiring CAUTION • Wiring work must be performed with the main power set to OFF to prevent electric shocks. • Enforce construction of class-D grounding wire by all means. If the specified grounding construction is neglected, a shock hazard or fault may be caused. • Wires should be the proper one meeting the ratings of this instrument. If using a wire which cannot endure the ratings, a fire may occur.
Teledyne Analytical Instruments When a noise source is in the vicinity Do not install the analyzer near power noise generating electric equipment (such as high frequency furnace and electric welder). If the analyzer must be used near such equipment, a separate power line should be used for avoiding noise. In case noise may enter from a relay, solenoid valve, etc.
Teledyne Analytical Instruments (4) Contact input (DI): terminal block 2 (13 to 20), terminal block 3 (5 to 10) • It is for a contact input at no voltage. An input is provided when switching to short circuit (on) or open (off). • No voltage is applied to the terminals (5) Contact output (DO): terminal block 3 (13 to 20), terminal block 4 and terminal block 5 • Contact rating: 250VAC / 2A, load resistance • An output is for a relay contact output.
Teledyne Analytical Instruments (7) List of terminal blocks 1 to 5 *1) Unused terminals are used for internal connection and should not be used as repeating terminals either. *2) O2 sensor input is used when an external O2 analyzer is selected.
Teledyne Analytical Instruments 8) Description on terminal block Terminal block 1 Terminal block for analog output (non-isolated output) Output : 4 to 20 mA or 0 to 100V DC Between 1 – 2: CH5 output Between 3 – 4: CH4 output Between 5 – 6: CH3 output Between 7 – 8: CH2 output Between 9 – 10: CH1 output Between 11 – 14: For internal connection. Must not be wired. (Must not be used as junction terminal.
Teledyne Analytical Instruments Terminal block 3 Between 1 – 4: For internal connection. Must not be wired. (Must not be used as junction terminal.) Between 5 – 6: Remote hold input. No hold when open. Output hold when short-circuited. Between 7 – 8: Average value reset input. Shortcircuiting the contact input (for at 1.5 sec or more) resets O2 average and O2 correction average simultaneously. Opening it restarts the average value. Between 9 – 10: Automatic calibration remote start input.
Teledyne Analytical Instruments Terminal block 4 Between 1 – 2: CH4 span calibration contact output Between 3 – 4: CH3 span calibration contact output Between 5 – 6: CH2 span calibration contact output Between 7 – 8: CH1 span calibration contact Between 9 – 10: Zero calibration contact output When the calibration contact output is measured with manual calibration, the calibration contact corresponding to calibration channel is conductive.
Teledyne Analytical Instruments Terminal block 5 1 and 11 – 14: For internal connection. Must not be wired. (Must not be used as junction terminal.) Between 2 - 3 and 3 - 4: CH3 alarm output. Conductive at 2 – 3 and open at 3 – 4 when set value is exceeded. Open at 2 – 3 and conductive at 3 – 4 otherwise. Between 5 - 6 and 6 - 7: CH2 alarm output. Conductive at 5 – 6 and open at 6 – 7 when set value is exceeded. Open at 5 – 6 and conductive at 6 – 7 otherwise.
Teledyne Analytical Instruments (9) Timing of calibration contact output 1. Manual calibration (See “6.9 Calibration”) 2. In case of automatic calibration (example shown in 6.4.
Teledyne Analytical Instruments 4. OPERATION 4.1 Preparation for operation (1) Check of gas sampling tube, exhaust tube and wiring Check that the pipes are correctly connected to the gas sampling port and drain port. Check that the analyzer is correctly wired as specified. 4.2 Warm-up operation and regular operation (1) Operation procedure 1. Turn ON the power switch at the left of the front panel. In one or two seconds, the measurement screen will appear at the front panel. 2.
Teledyne Analytical Instruments 5. DISPLAY AND OPERATION PANEL This section describes the display and operation panel of the gas analyzer. It also explains the name and description of function on the operation panel. See Fig. 5-1. 5.1 Name and description of operation panel • Display: • Controls: The measurement screen and the setting items are displayed. The configuration is as shown below. Name Description Name Description 1. MODE key Used to switch the mode. 5.
Teledyne Analytical Instruments 5.2 Overview of display and operation panel Figure 5.
Teledyne Analytical Instruments 5.3 Overview of display screen (1) Measurement mode screen On turning on the power switch, the Measurement Mode screen will appear. The measurement screen depends on the number of components. The following screen configuration shown as an example is for CO2, CO, O2 (Output at channel 6). When channel 5 or later is displayed, scroll up or down key to view another configuration which is beyond the screen. No. Name Function No.
Teledyne Analytical Instruments • O2 correction concentration average value: CH (component) where “AV / CV” is displayed as “AV / CV CO” in the component display and O2 average value, a value obtained by averaging O2 conversion concentration value or O2 concentration value in a fixed time is output every 30 seconds. Averaging time can be changed between 1 minute and 59 minutes or 1 hour and 4 hours according to the average time settings (See 6.7 Parameter setting).
Teledyne Analytical Instruments (3) Contents of measured channel (CH) The contents in each measured CH corresponding to the type are given below: Type code 5th digit Contents 6th digit 7th digit CH1 CH2 CH3 CH4 CH5 CH6 CH7 Y C Y O2 A Y Y SO2 B Y Y CO D Y Y CO2 E Y Y CH4 2 Y Y CO2 CO 3 Y Y CH4 CO 4 Y Y CO2 CH4 5 Y Y CO2 CO A A, B, C Y SO2 O2 B A, B, C Y, B CO O2 D A, B, C Y CO2 O2 E A, B, C Y CH4 O2 2 A, B, C Y, B CO2 CO O2 3 A, B,
Teledyne Analytical Instruments 5.4 General operation • Measurement mode The measurement mode can be displayed for up to 5 channels in a single screen. When viewing a channel beyond the 5 channels, press the ( or ) key and the screen can be scrolled one by one channel at a time.
Teledyne Analytical Instruments 6. SETTING AND CALIBRATION 6.1 Changeover of range This mode is used to select the ranges of measured components. 1. During measurement, press the MODE key to display the User mode. 2. Point the cursor to “Changeover of Range”. Press the ENT key. 3 The “Channel Selection” screen appears. Press the UP or DOWN key until the cursor moved selects a desired CH (component). 4. After selection, press the ENT key.
Teledyne Analytical Instruments 6.2 Calibration setting This mode is used to set calibration concentration and actions. The calibration setting involves calibration concentration, zero calibration, calibration range and auto-calibration component. 6.2.1 Setting of calibration concentration It allows you to set concentrations of the standard gas (zero and span) of each channel used for calibration. 1. During measurement, press the MODE key to display the User mode. 2.
Teledyne Analytical Instruments 5. In the “Calibration Concentration Selection” screen that appears, select any concentration item you want to set by pressing the UP, DOWN, and RIGHT key. Note: Analyzers other than the zirconia O2 instrument cannot perform zero setting. 6. In the “Calibration Concentration Value Setting” screen that appears, enter calibration gas concentration values (zero and span). For value entry, press the UP or DOWN key, and a 1-digit value increases or decreases.
Teledyne Analytical Instruments 6.2.2 Setting of manual zero calibration If zero calibration is to be made manually, select whether to calibrate all components at once or each of them separately upon selection. 1. During measurement, press the MODE key to display the User mode. 2. Point the cursor to “Setting about Calibration” by pressing the UP or DOWN key. Press the ENT key. 3. In the “Setting about Calibration” screen that appears, point the cursor to “About ZERO Calibration” by pressing the or key.
Teledyne Analytical Instruments 5. In the “Manual Calibration Selection” screen that appears, select “At once” or “Each” by pressing the UP or DOWN key. When selecting “Both”, the CH (components) to be set can be zero-calibrated at the same time. When selecting “Each”, either of the CH (components) to be selected is zero-calibrated. After setting, press the ENT key, and the calibration you specified is carried out.
Teledyne Analytical Instruments 6.2.3 Setting of calibration range This mode is used to set if the range of each CH (component) at the calibration manual calibration or auto calibration) should be calibrated with a single range or 2 ranges. 1. During measurement, press the MODE key to display the User mode. 2. Point the cursor to “Setting about Calibration” by pressing the UP or DOWN key. Press the ENT key. 3.
Teledyne Analytical Instruments 5. In the “Calibration Selection” screen that appears, select “Both” or “Current” by pressing the UP or DOWN key. • When selecting “both”, Range 1 and Range 2 of the set CH are calibrated together. • When selecting “Current”, the range alone displayed at the set CH is calibrated. To close “Setting of Calibration Range” To close “Setting of Calibration Range” or to cancel this mode midway, press the ESC key. A previous screen will return.
Teledyne Analytical Instruments 6.2.4 Setting of auto-calibration component It sets the CH (component) to be calibrated in the autocalibration. 1. During measurement, press the MODE key to display the User mode. 2. Point the cursor to “Setting about Calibration” by pressing the UP or DOWN key. Press the ENT key. 3. In the “Setting about Calibration” screen that appears, point the cursor to “Auto Calibration Components” by pressing the UP or DOWN key. Press the ENT key. 4.
Teledyne Analytical Instruments 5. In the “Auto Calibration Selection” screen that appears, select “enable” or “disable” by pressing the UP or DOWN key. After setting, press the ENT key. To close Auto Calibration Component setting To close “Setting of Auto Calibration Component” or to cancel this mode midway, press the ESC key. A previous screen will return. Example Auto calibration is made in the following rules according to the setting. 1.
Teledyne Analytical Instruments 6.3 Alarm setting 6.3.1 Setting of alarm values This mode is used to set the upper and lower limit value to provide an alarm output during measurement. Before changing the alarm setting, set the ON/OFF to OFF. 1. During measurement, press the MODE key to display the User mode. 2. Point the cursor to “Alarm Setting” by pressing the UP or DOWN key. Press the ENT key. 3.
Teledyne Analytical Instruments After setting, the alarm setting is now completed by pressing the ENT key. To close the “Alarm Setting” To close the “ Alarm Setting” or to cancel this mode midway, press the ESC key. A previous screen will return. Setting range 0 to 100% FS (Settable in each range). Description of setting items Upper limit value: Lower limit value: Contact action: Sets the upper limit value (concentration) of alarm. Sets the lower limit value (concentration) of alarm.
Teledyne Analytical Instruments 6.3.2 Hysteresis setting To prevent chattering of an alarm output near the alarm setting values, set hysteresis. 1. In the “Alarm Setting CH Selection” screen that appears, point the cursor to “Hysteresis” by pressing the UP or DOWN key. Press the ENT key. 2. In the “Hysteresis Value Setting” screen that appears, enter hysteresis values. For the value entry, 1-digit value is increased or decreased by pressing the UP or DOWN key, and pressing the RIGHT key moves the digit.
Teledyne Analytical Instruments 6.4 Setting of auto calibration 6.4.1 Auto calibration Auto calibration is automatically carried out when zero calibration and span calibration are set. Before changing the setting of auto calibration, set the ON/OFF to OFF. 1. During measurement, press the MODE key to display the User mode. 2. Point the cursor to “Setting of Auto Calibration” by pressing the or key. Press the ENT key. 3.
Teledyne Analytical Instruments Auto calibration status contact output is closed during auto calibration, and is open in other cases. Setting range Cycle: Flow time: 1 to 99 hours or 1 to 40 days (initial value 7 days) 60 to 599 sec (initial value 300sec) CAUTION When an auto calibration starts, the measurement screen automatically appears. Any operation other than forced stop of auto calibration (see Item 6.4.2) is not permitted during auto calibration.
Teledyne Analytical Instruments 6.4.2 Forced stop of auto calibration This mode is used to cancel the auto calibration forcedly. 1. In the Menu mode that is displayed, point the cursor to “Setting of Auto Calibration” by pressing the UP or DOWN key. Press the ENT key. 2. In the “Setting of Auto Calibration” item selection screen that appears, point the cursor to “Setting of Auto Calibration” by pressing the UP or DOWN key. Press the ENT key. 3. “Stop Auto Calibration” is inverted.
Teledyne Analytical Instruments “Auto Calibration” screen Example In case where setting the auto calibration components (see Item 6.2.4) to “CH1: enable” and “CH2: enable”. • Zero calibration A message, “Zero calibration” blinks at CH1 and CH2. • CH1 span calibration A message, “Span calibration” blinks at CH1. • CH2 span calibration A message, “Span calibration” blinks at CH2.
Teledyne Analytical Instruments 6.5 Setting of auto zero calibration 6.5.1 Auto zero calibration Auto zero calibration is automatically carried out when zero calibration are set. Components for which a calibration is to be made are determined by setting of auto calibration component in 6.2.4. Before changing the setting of auto zero calibration, set the ON/OFF to OFF. 1. During measurement, press the MODE key to display the User mode. 2.
Teledyne Analytical Instruments Auto calibration status contact output is closed during auto zero calibration, and is open in other cases. Setting range Cycle: 1 to 99 hours or 1 to 40 days (initial value 7 days) Flow time: 60 to 599 sec (initial value 300 sec) Caution • When an auto zero calibration starts, the measurement screen automatically appears. • Any operation other than forced stop of auto zero calibration (see Item 6.5.2) is not permitted during auto zero calibration.
Teledyne Analytical Instruments 6.5.2 Forced stop of auto zero calibration This mode is used to cancel the auto zero calibration forcedly. 1. In the Menu mode that is displayed, point the cursor to “Setting of Auto Zero Calibration” by pressing the UP or DOWN key. Press the ENT key. 2. In the “Setting of Auto Zero Calibration” item selection screen that appears, point the cursor to “Setting of Auto Zero Calibration” by pressing the UP or DOWN key. Press the key. 3.
Teledyne Analytical Instruments “Auto Zero Calibration” screen Example In case where setting the auto calibration components (see Item 6.2.4) to “CH1: enable” and “CH2: enable”. • Zero calibration A message, “Zero calibration” blinks at CH1 and CH2. CAUTION During auto zero calibration, any key operation is not permitted other than operations such as key lock ON/ OFF and “Stop Auto Zero Calibration”. When the key lock is set at ON, even the “Stop Auto Zero Calibration” cannot be used.
Teledyne Analytical Instruments 6.6 Peak alarm setting When the number of peaks of which CO concentration exceeds the upper limit value exceeds the setting time, a peak alarm is outputted. This section describes how to perform various settings of peak alarm. Note: The setting is optional and is valid only when peak alarm function is provided. 1. Press the MODE key in the Measurement mode, and the User mode appears. 2. Point the cursor to “Setting of Peak Alarm” by pressing the or key. Press the ENT key. 3.
Teledyne Analytical Instruments Setting range • Alarm Value: 0 to 1000 ppm 5 ppm step (initial value: 500 ppm) • Alarm Count: 1 to 99 times (initial value: 5 times) • Hysteresis: 0 to 20% of full scale (initial value: 0% of full scale) * The hysteresis setting is made in terms of full scale. Action of peak alarm If CO concentration exceeds the alarm value, counting will begin. If the number of peaks is over the set times per hour, a peak count alarm becomes closed (ON).
Teledyne Analytical Instruments 6.7 Parameter setting It allows you to carry out the parameter setting such as time, key lock, etc., as required. Items to be set are as follows: Description of setting items • Current Time: • Key Lock: Sets the current day of the week, hour and time. Sets with ON/OFF so that any key operation except the key lock OFF cannot be performed. • Remote Range: Sets with ON/OFF whether the Range Selection is made valid or invalid by external input.
Teledyne Analytical Instruments 4. In the Parameter Setting screen that appears, enter the numeric values and set the items. Entering the numeric values or setting the items should be carried out by using the or key. To move the cursor to the right, press the key. After setting, press the ENT key, that the parameter setting is carried out with the value you set. To close Parameter Setting screen To close the “Parameter Setting” screen or cancel this mode midway, press the ESC key.
Teledyne Analytical Instruments (2) Auto calibration (3) External hold (4) Screen display during holding The “Holding” message blinks on the measuring screen. Since the screen displays the process of calibration is displayed during the manual calibration, “Holding” is not displayed even if the screen is held, but the screen is displayed with the hold extending time.
Teledyne Analytical Instruments Average period It allows you to set an average period of the average value of O2 correction. It enables you to set an average time of 1 to 59 minutes (1minute step) or 1 to 4 hours (1-hour step). Changing the setting resets the average value of O2 correction and O2 average value. (Pressing the ENT validates the resetting only for components whose setting was changed.) Example of average action Suppose the average period is 1 hour.
Teledyne Analytical Instruments 6.8 Maintenance mode This mode is used for check of sensor input values, display of error log files or setting of passwords. First, enter a password and then use it from the next operation. This mode is displayed by selecting the Maintenance Mode from “6.7 Parameter Setting” 1. Select the Maintenance mode from the Parameter Setting screen to display the Password Setting screen. 2. Enter the password, and the Maintenance Mode item selection screen will be displayed.
Teledyne Analytical Instruments • O2 correction reference value setting screen • Password Setting screen Description of Password Setting screen It enables you to set a password to be used when switching the parameter setting mode to the maintenance mode. Note: The password set herein must be managed for safety. Failure to enter the correct password will not open the Maintenance mode. • Station No. setting screen (option) Setting range • Station No.: 00 to 31 (Initial No.
Teledyne Analytical Instruments 6.9 Calibration 6.9.1 Zero calibration It is used for zero point adjustment. For zero calibration gas, see 3.3 (3), Preparation for standard gas in Sampling. Use a gas according to application. 1. Press the ZERO key on the Measurement screen to display the Manual Zero Calibration screen. 2. Select the CH (component) to be calibrated by pressing the UP or DOWN key. After selection, press the ENT key, and zero gas will be supplied.
Teledyne Analytical Instruments 6.9.2 Span calibration It is used to perform a span point adjustment. Supply calibration gas with concentration set to the span value to perform the span calibration. For the span calibration gas for the SO2, CO2, CO, H4 measurement, use the standard gas with a concentration of 90% or more of the range value. For the calibration gas for the O2 measurement, use the standard gas of about 2 vol%. 1.
Teledyne Analytical Instruments 7. MAINTENANCE 7.1 Daily check (1) Zero calibration and span calibration 1. It is used for zero point adjustment. For calibration, refer to 6.9.1, Zero calibration. 2. After zero calibration, perform span calibration. For calibration, refer to 6.9.2, Span calibration. 3. Zero calibration and span calibration should be performed once a week, if required. (2) Flow check 1. Sampling gas flow rate and purge gas flow rate should be as follows; Sampling gas flow rate: 1.
Teledyne Analytical Instruments 7.3 Cleaning of measuring cell Entry of dust or water drops in the measuring cell contaminates the interior of the cell, thus resulting in a drift. Clean the inside if dirty. Then, check the sampling device, especially the filter, to prevent the cell from being contaminated by dust or mist. 7.3.1 Disassembly and assembly of measuring cell There are two kinds of measuring cells, on block cells (cell length: 4 mm, 8 mm, 16 mm, 32 mm) and pipe cells (Cell length: 6.
Teledyne Analytical Instruments Number Name 1 Screw (for fixing light source unit) 2 Screw (for fixing detector) 3 Screw (for fixing base plate) 4 Base plate 5 Light source unit 6 Screw (for fixing support) 7 Screw (for fixing cell retainer) 8 Chopper motor connector (9) Filter 10 Support 11 Cell retainer 12 Pipe cell 13 O-ring 14 Infrared transmission window 15 Detector 16 Bridge PCB 17 Bridge resistance (18) Detector: Installed in 2-component analyzer only Fig.
Teledyne Analytical Instruments (2) How to remove block cell (See Fig. 7-2) 1. For Step 1 to 4, see Item 7.3.1, (1) How to remove pipe cell. 5. Remove the connector to the detector output cord from the printed board. For the 2-component analyzer, remove the output cord connector of the 2-component analyzer detector (No. 13) from the printed board, and then remove the 2-component detector by unscrewing two mounting screws (No. 14) fastening the 2-component detector. 6. Unscrew the two screws (No.
Teledyne Analytical Instruments Number Name 1 Screw (for fixing light source unit) (2) Filter 3 Screw (for fixing detector) 4 Base plate 5 Light source unit 6 Screw (for fixing block cell) 7 Block cell 8 Infrared transmission window (window holder) 9 O-Ring 10 Screw (for fixing base plate) 11 Chopper motors connector 12 Detector (13) Detector: Install in the 2-component analyzer (14) Screws (for mounting the 2-component detector) Fig.
Teledyne Analytical Instruments 3) How to remove measuring unit (See Fig. 7-3) 1. For Step 1 to 4, see Item 7.3.1(1), How to remove pipe cell. 2. Remove the detector output cord connector from the printed board. 3. Remove wiring to the 2-pin terminals of the infrared ray light source assembly and chopper motor pin connector (No. 8) from the printed board. 4. Detach the 4 screws (No. 3) fastening the base plate (No. 4) to remove the measuring unit.
Teledyne Analytical Instruments 7.3.2 How to clean cell 1. To clean the cell inside or infrared ray transmission window, first clear large dirt of it with a soft brush and then wipe with soft cloth lightly. Donʼt use hard cloth. Note: Handle the fragile window with care. Use care not to rub off the dirt from the window roughly. 2. If the window or the cell interior is very dirty, use a soft cloth moistened with absolute alcohol. 3.
Teledyne Analytical Instruments 8. TROUBLESHOOTING 8.1 Error message If errors occur, the following contents are displayed. Error display Error contents Probable causes Error No. 1 Sector motor rotation detector signal is faulty. • Infrared ray light source is faulty. • Sector motor rotation is faulty or stopped. • Motor rotation detector circuit is faulty. • Amplifier circuit is faulty. Error No. 3 A/D conversion signal is faulty. • Circuit is faulty. Error No.
Teledyne Analytical Instruments In case of Error No. 5 and No. 7 (2) Error log file If error occurs, the history is saved in an error log file. The error log file exists in the maintenance mode. * Up to 14 errors can be saved in the error history; the oldest error will be deleted one by one every time a new occurs. * If the power display supply is turned OFF, the contents in the error log file will not be lost or damaged.
Teledyne Analytical Instruments 9. SPECIFICATIONS Relay contact output: 1a contact (250V AC/2A, resistive load) Instrument error, calibration error, range discrimination, auto calibration status, solenoid valve drive for auto calibration, pump ON/OFF. 1c contact (250V AC/2A, resistive load) Upper/lower alarm contact output. Peak count alarm contact output. * All relay contacts are isolated mutually and from the internal circuit. 9.
Teledyne Analytical Instruments (2) Standard functions Output signal holding: Output signals are held during manual and auto calibrations by activation of holding (turning on its setting). The values to be held are the ones just before start calibration mode. Indication values will not be held. Remote output holding: Output signal is held at the latest value by short-circuiting the remote output holding input terminals. Holding is maintained while the terminals are short-circuited.
Teledyne Analytical Instruments Interference from other gases: CS: measured concentration of sample gas Os : Measured O2 concentration On: Standard O2 concentration (value changeable by setting) *The upper limit value of the fractional part in this calculation is 4. The result of calculation is indicated and output in an analog output signal.
Teledyne Analytical Instruments 9.
Teledyne Analytical Instruments 74 Model 7500 Instruction Manual
Teledyne Analytical Instruments (1) Code symbols should be specified. (2) Range combination should be the one allowed in separate tables. (note 1) “Y” should be specified when only O2 measurement is necessary. (note 2) the 6th digit. External O2 sensor signal should be 0-1VDC linear of full scale, when “ B ” is specified at (note 3) “C” should be specified when “ Y ” is specified at the 5th digit.
Teledyne Analytical Instruments Measurable component and range - availability check table - 76 Model 7500 Instruction Manual
Teledyne Analytical Instruments Table 5: Triple component analyzer (CO2, CO, CH4) Covered in combination of Table 2, Table 3 and Table 4.
Teledyne Analytical Instruments 9.
Teledyne Analytical Instruments (2) Accessory slide rail (unit: mm) * The slide rails are attached to this equipment when designated. Model : 305A-20/Accuride International Inc. 19-inch rack mounting method: The mass of the instrument should be supported at the bottom of the unit (or the side of the unit when mounted with the slide rails). Also, for facilitate maintenance, a structure which allows extraction of the main unit by using the slide rail is recommended.
Teledyne Analytical Instruments Appendix Drawing List D79104 Outline diagram 80 Model 7500 Instruction Manual
