Related Manuals for RKI Instruments 35-3001A-12-02
Summary of Contents for RKI Instruments 35-3001A-12-02
- Page 1 35-3001A-12-02 Carbon Dioxide/Hydrogen Sulfide Sample-Draw Detector Operator’s Manual Part Number: 71-0497 Revision: P1 Released: 6/7/19 www.rkiinstruments.com...
- Page 2 Typical calibration frequencies for most applications are between 3 and 6 months, but can be required more often or less often based on your usage. 35-3001A-12-02 CO S Sample-Draw Detector...
- Page 3 Product Warranty RKI Instruments, Inc. warrants gas alarm equipment sold by us to be free from defects in materials, workmanship, and performance for a period of one year from date of shipment from RKI Instruments, Inc. Any parts found defective within that period will be repaired or replaced, at our option, free of charge.
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Page 4: Table Of Contents
Parts List ..............28 35-3001A-12-02 CO... -
Page 5: Overview
WARNING: When using the 35-3001A-12-02, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 35-3001A-12-02 and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 35-3001A-12-02 as described in this manual. -
Page 6: Description
AMP 2 Interconnect Terminal This End T o Strip Inlet F itting 3/4" Conduit Hub Particle F ilter INLET Inlet Fitting EXHAUST Exhaust Fitting Figure 1: Carbon Dioxide/Hydrogen Sulfide Sample-Draw Detector Component Location 6 • 35-3001A-12-02 CO S Sample-Draw Detector... -
Page 7: External Components
Pressure Switch Flowmeter Exhaust Hydrogen Flowmeter PCB Sulfide Restrictor Sensor Sensor Flow Control Valve Inlet Flow Baffle IR CO2 Sensor Pump Particle Filter Hydrophobic Filter Figure 2: Carbon Dioxide/Hydrogen Sulfide Sample-Draw Detector Flow Diagram 35-3001A-12-02 CO S Sample-Draw Detector • 7... - Page 8 A ball in the flowmeter column indicates the flow rate to the sensor. The flowmeter measures the flow in the range 0.2 to 2.0 SCFH (Standard Cubic Feet per Hour). The optimum flow rate is 1.0 SCFH. 8 • 35-3001A-12-02 CO S Sample-Draw Detector...
- Page 9 PCB, with a 4-wire cable mates to the IR CO sensor and retains it in the flow block. The cable is wired to the IR CO amplifier. The IR CO sensor PCB allows you to replace the sensor without disconnecting the wiring. 35-3001A-12-02 CO S Sample-Draw Detector • 9...
- Page 10 The black test point in the upper left corner is the negative (-) test point and the red test point to the left of the zero and span pots is the positive (+) test point. 10 • 35-3001A-12-02 CO S Sample-Draw Detector...
- Page 11 The black test point (CAL 2) in the upper left corner is the negative (-) test point and the red test point (CAL 1) in the upper right corner is the positive (+) test point. 35-3001A-12-02 CO S Sample-Draw Detector • 11...
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Page 12: Installation
6.50 Ø .30 x .50 (4X) M OUNTING 1.13 4.00 Pilot Fail Sample Drawing Gas Detector 8.88 8.50 35-3001 www.rkiinstruments.com 4.50 NOTE: Housing is 4.3 inches deep Figure 5: Outline and Mounting Dimensions 12 • 35-3001A-12-02 CO S Sample-Draw Detector... -
Page 13: Connecting The Sample Lines To The Sample-Draw Detector
1/4” O.D. rigid polypropylene, Teflon, or flexible polyurethane tubing may be used. RKI Instruments, Inc. recommends using either 1/4” O.D. x 1/8” I.D. or 1/4” O.D. x 0.170” I.D. tubing based on your length requirements. See “Specifications” on page 5 for maximum tubing lengths based on tubing size. -
Page 14: Wiring The Sample-Draw Detector To A Controller
Push 1/4” O.D. rigid polypropylene or rigid Teflon sample tubing into the fitting until it stops. Flexible polyurethane tubing may be used with an appropriate insert. RKI Instruments, Inc. recommends using either 1/4” O.D. x 1/8” I.D. or 1/4” O.D. x 0.170” I.D. tubing based on your length requirements. - Page 15 Connect the wires to the applicable detector/transmitter terminal strip at the controller as shown in Figure 6. Refer to the controller operator’s manual and the controller detector head specification sheet for the 35-3001A-12-02 for detector/terminal strip connections specific to the controller.
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Page 16: Start Up
100% nitrogen cylinder to set the zero signal of the sample-draw detector’s carbon dioxide channel. Open the housing door. Set a voltmeter to measure in the millivolt (mV) range. 16 • 35-3001A-12-02 CO S Sample-Draw Detector... -
Page 17: Maintenance
Verify a display reading of 0 ppm for the hydrogen sulfide channel at the controller. Investigate significant changes in the display reading. Quarterly Calibration Calibrate the sample-draw detector as described in “Calibration, IR CO Sensor” on page 24 and “Calibration, H S Sensor” on page 26. 35-3001A-12-02 CO S Sample-Draw Detector • 17... -
Page 18: Troubleshooting
If the fail condition continues, replace the sensor(s) as described in “Replacing Components of the Sample-Draw Detector” on page 19. If the fail condition continues, contact RKI Instruments, Inc. for further instruction. Slow or No Response/Difficult or Unable to Calibrate Symptoms •... -
Page 19: Replacing Components Of The Sample-Draw Detector
If you cannot set the correct flow rate, check the sample line for obstructions or kinks. If the calibration/response difficulties continue, replace the sensor as described later in this section. If the calibration/response difficulties continue, contact RKI Instruments, Inc. for further instruction. Replacing Components of the Sample-Draw Detector... - Page 20 Verify that you are using the correct replacement sensor, then plug the sensor into the H amplifier. Place the sensor and amplifier in the H S sensor cavity. Secure the H S amplifier on the flow block with the two screws you removed in step 4. 20 • 35-3001A-12-02 CO S Sample-Draw Detector...
- Page 21 Install the new filter. Be sure the side of the filter marked “INLET” is connected to the elbow that is connected to the inlet fitting. Turn on power to the controller. Turn on the controller. 35-3001A-12-02 CO S Sample-Draw Detector • 21...
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Page 22: Adjusting The Low Flow Setting
If the low flow alarm is set too high, turn the pressure switch adjustment screw slightly clockwise. Repeat steps 3 and 4 if necessary. Use the sensor flow control valve to set the flow to 1.0 SCFH. Make sure the sample-draw detector’s Fail LED is off. 22 • 35-3001A-12-02 CO S Sample-Draw Detector... -
Page 23: Removing The Particle Filter's Tubing Stub, If Necessary
Screw the inlet fitting tube nut back onto the fitting body. See “Connecting the Sample Lines to the Sample-Draw Detector” on page 13 for instructions to install a new piece of tubing into the fitting. 35-3001A-12-02 CO S Sample-Draw Detector • 23... -
Page 24: Calibration Frequency
Although there is no particular calibration frequency that is correct for all applications, a calibration frequency of every 3 months is adequate for most sample draw detector applications. Unless experience in a particular application dictates otherwise, RKI Instruments, Inc. recommends a calibration frequency of every 3 months for the H S detector and every 6 months for the infrared detector. -
Page 25: Setting The Zero Reading
Remove the voltmeter leads from the amplifier test points. Close the housing door. Follow the instructions in the controller’s operator’s manual to exit the calibration mode. Store the components of the calibration kit in a safe and convenient place. 35-3001A-12-02 CO S Sample-Draw Detector • 25... -
Page 26: Calibration, H 2 S Sensor
5. If you verified a fresh air environment, proceed to the next section, Setting the Response Reading. Disconnect the sample tubing from the inlet fitting. Unscrew the regulator from the zero air calibration cylinder. 26 • 35-3001A-12-02 CO S Sample-Draw Detector... -
Page 27: Setting The Response Reading
Remove the voltmeter leads from the amplifier test points. Close the housing door. Follow the instructions in the controller’s operator’s manual to exit the calibration mode. Store the components of the calibration kit in a safe and convenient place. 35-3001A-12-02 CO S Sample-Draw Detector • 27... -
Page 28: Parts List
33-0167RK Particle filter 57-1053RK-10 Amplifier 61-5040RK-02 IR CO sensor, 0 - 5,000 ppm 71-0497 Operator’s Manual, 35-3001A-12-02 Sample-Draw Detector 81-0070RK-01 Calibration cylinder, 2000 ppm CO in N , 34 liter steel 81-0070RK-03 Calibration cylinder, 2000 ppm CO in N , 103 liter...
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