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Summary of Contents for RKI Instruments 35-3001-05-03
- Page 1 35-3001-05-03 Carbon Dioxide Sample-Draw Detector Operator’s Manual Part Number: 71-0413 Revision: 0 Released: 8/4/17 www.rkiinstruments.com...
- Page 2 Typical calibration frequencies for most applications are between 6 and 12 months, but can be required more often or less often based on your usage. 35-3001-05-03 Carbon Dioxide 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 ..............17 35-3001-05-03 Carbon Dioxide Sample-Draw Detector... -
Page 5: Overview
WARNING: When using the 35-3001-05-03, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 35-3001-05-03 and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 35-3001-05-03 as described in this manual. -
Page 6: Description
AMP 2 Interc onnect 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 Sample-Draw Detector Component Location 2 • 35-3001-05-03 Carbon Dioxide Sample-Draw Detector... -
Page 7: External Components
Pressure Switch Flowmeter Exhaust IR CO2 Sensor Flowmeter PCB Sensor Flow Control Restrictor Valve Inlet Pump Particle Filter Hydrophobic Filter Figure 2: Carbon Dioxide Sample-Draw Detector Flow Diagram 35-3001-05-03 Carbon Dioxide Sample-Draw Detector • 3... - 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. 4 • 35-3001-05-03 Carbon Dioxide Sample-Draw Detector...
- Page 9 4-wire cable mates to the IR carbon dioxide sensor and retains it in the flow block. The cable is wired to the main PCB. The IR carbon dioxide sensor PCB allows you to replace the sensor without disconnecting the wiring. 35-3001-05-03 Carbon Dioxide Sample-Draw Detector • 5...
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Page 10: 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 3: Outline and Mounting Dimensions 6 • 35-3001-05-03 Carbon Dioxide Sample-Draw Detector... -
Page 11: 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 1 for maximum tubing lengths based on tubing size. -
Page 12: Wiring The Carbon Dioxide 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 13 Connect the wires to the applicable detector/transmitter terminal strip at the controller as shown in Figure 4. Refer to the controller operator’s manual and the controller detector head specification sheet for the 35-3001-05-03 for detector/terminal strip connections specific to the controller.
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Page 14: Start Up
Perform a zero operation at the controller. See “Setting the Zero Reading” on page 16 and the controller operator’s manual for instructions to perform a zero operation. Remove the calibration tubing from the inlet fitting, then reconnect the sample tubing to the inlet fitting. 10 • 35-3001-05-03 Carbon Dioxide Sample-Draw Detector... -
Page 15: Maintenance
Performing the response test Screw the demand flow regulator into the calibration cylinder. Connect the calibration tubing from the demand flow regulator to the inlet fitting. Gas will begin to flow. 35-3001-05-03 Carbon Dioxide Sample-Draw Detector • 11... -
Page 16: Troubleshooting
If the fail condition continues, replace the sensor as described in “Replacing the Infrared Carbon Dioxide Sensor” on page 13. If the fail condition continues, contact RKI Instruments, Inc. for further instruction. Slow or No Response/Difficult or Unable to Calibrate Symptoms •... -
Page 17: Replacing Components Of The Carbon Dioxide 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 Carbon Dioxide Sample-Draw Detector This section includes procedures to replace the sensor, hydrophobic filter, and particle filter. -
Page 18: Adjusting The Low Flow Setting
Turn the sensor flow control valve’s knob counterclockwise to increase the flow until the unit is out of low flow alarm when the reset button is pressed and released. 14 • 35-3001-05-03 Carbon Dioxide Sample-Draw Detector... -
Page 19: 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 7 for instructions to install a new piece of tubing into the fitting. 35-3001-05-03 Carbon Dioxide Sample-Draw Detector • 15... -
Page 20: Calibration Frequency
Although there is no particular calibration frequency that is correct for all applications, a calibration frequency of every 6 months is adequate for most infrared combustible gas transmitter applications. Unless experience in a particular application dictates otherwise, RKI Instruments, Inc. recommends a calibration frequency of every 6 months. -
Page 21: Returning To Normal Operation
Regulator, demand flow, for 34 liter aluminum, 58 liter, and 103 liter cali- bration cylinders (cylinders with internal threads) 81-1055RK Regulator, demand flow, for 17 liter and 34 liter steel calibration cylinders (cylinders with external threads) 35-3001-05-03 Carbon Dioxide Sample-Draw Detector • 17...
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