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Summary of Contents for RKI Instruments 35-3010RKA-07
- Page 1 35-3010RKA-07 Sample-Draw Detector Part Number: 71-0220RK Revision: C Released: 6/5/17 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. 35-3010RKA-07 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 ..............23 35-3010RKA-07 Sample-Draw Detector... -
Page 5: Overview
WARNING: When using the 35-3010RKA-07, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 35-3010RKA-07 and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 35-3010RKA-07 as described in this manual. -
Page 6: Description
Use the two conduit hubs on the bottom of the housing to make wiring connections. An aluminum subpanel is mounted to the interior of the housing. The sample-draw detector’s internal components are mounted to the subpanel. 2 • 35-3010RKA-07 Sample-Draw Detector... -
Page 7: Flow System
It prevents water and other liquids from contaminating the flow system. Replace the filter when it appears dirty, discolored, or clogged. If a liquid other than water is drawn into the filter, replace the filter as soon as possible. 35-3010RKA-07 Sample-Draw Detector • 3... - Page 8 S channel. This causes a downscale reading at the monitor on these channels. The low flow level is factory-set at 0.6 SCFH (±0.2 SCFH). NOTE: There is no low flow indication for the LEL channel. 4 • 35-3010RKA-07 Sample-Draw Detector...
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Page 9: Detection System
Test Point TP+ SPAN TOXIC TOXIC Test Point TP+ Test Point TP- Interconnect Terminal Strip Transmitter Type Selector, Set To OXY Span Pot Span Pot Zero Pot Zero Pot Figure 3: LEL & Oxygen Transmitters 35-3010RKA-07 Sample-Draw Detector • 5... - Page 10 Two cables mate to the main circuit board: the one on the left is for the CO sensor signal and the one on the right is for the H S sensor 6 • 35-3010RKA-07 Sample-Draw Detector...
- Page 11 Since the CO sensor is replaced with a dummy plug in the 35-3010RKA-07 the CO sensor signal cable carries no signal in this version of the 35-3010RK. Main Circuit Board Pump Terminal Stip Test Point CAL - 1 Fail LED...
- Page 12 Amp 2 is on the right and is for the H S channel. Since there is no CO channel in the 35-3010RKA-07, Amp 1 is not used. The zero and span pots are used during calibration. Use the span pot to make adjustments to gas response readings and the zero pot to make adjustments to the zero reading.
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Page 13: Installation
Slightly loosen the screw that secures one of the mounting feet to the housing, then rotate the mounting foot 180 degrees (see Figure 3). Tighten the screw that secures the mounting foot to the housing. 35-3010RKA-07 Sample-Draw Detector • 9... -
Page 14: Connecting The Sample Lines To The Sample-Draw Detector
Route the cable or wires in conduit leading from the sample-draw detector to the controller. Connect the drain wire to an available chassis ground at the controller end. RKI controllers typically have a ground stud that can be used to ground the cable’s drain wire. 10 • 35-3010RKA-07 Sample-Draw Detector... - Page 15 Interconnect T erm inal Strip Oxygen 4/20 Feedback LEL (Controller 24 VDC (Controller Transmitter Transmitter 24 VDC Terminals) 4-20 (Feedback) Terminals) 4/20 Feedback (Controller Transmitter 24 VDC + Terminals) Figure 6: External (Field) Wiring, Sample-Draw Detector 35-3010RKA-07 Sample-Draw Detector • 11...
- Page 16 Detector O xygen S ensor H 2S Sens or P lugs I nto (Not H 2S F ar S ide of P reamp U sed) Circuit B oard Figure 9: Internal (Factory) Wiring, Sample-Draw Detector 12 • 35-3010RKA-07 Sample-Draw Detector...
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Page 17: Start Up
Plug the positive lead into the test point labeled CAL+2; plug the negative lead into the test point labeled CAL-2. Verify a voltmeter reading of 100 mV (± 2 mV). 35-3010RKA-07 Sample-Draw Detector • 13... -
Page 18: Operation
20.9% for the oxygen channel (434 mV at the oxygen transmitter test points), and 0 ppm for the H S channel (100 mV at the amp 2 test points). Investigate significant changes in the reading. 14 • 35-3010RKA-07 Sample-Draw Detector... -
Page 19: Troubleshooting
The controller is operating properly but indicates a reading well below zero on one or more channels. Probable Causes • The sample-draw detector’s flow rate is too low because of an obstructed sample line, failed pump, etc. 35-3010RKA-07 Sample-Draw Detector • 15... - Page 20 If the fail condition continues, replace the sensor from the problem channel or channels as described later in this section. If the fail condition continues, contact RKI Instruments, Inc. for further instruction. Slow or No Response/Difficult or Unable to Calibrate Symptoms •...
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Page 21: Replacing Components Of The Sample-Draw Detector
S sensor off the preamp circuit board. It is located in the amp 2 position (right side) of the preamp circuit board. Plug the new sensor into the preamp board. Reinstall the preamp circuit board with the sensors onto the flow block. Turn on incoming power. 35-3010RKA-07 Sample-Draw Detector • 17... -
Page 22: Adjusting The Low Flow Setting
Place the new hydrophobic filter back into the metal clamp. Replacing the Charcoal Filter NOTE: The charcoal filter does not normally need to be replaced in the 35-3010RKA-07 because it does not include a CO sensor. Turn off or unplug power to the controller. -
Page 23: Calibration, Ir Ch 4 And H 2 S Detectors
Setting the Zero Reading NOTE: If you can verify a fresh air environment, it is not necessary to use the zero air calibration cylinder to set the zero reading. Screw the regulator into the zero air calibration cylinder. 35-3010RKA-07 Sample-Draw Detector • 19... -
Page 24: Setting The Response Reading
Wait 1 to 2 minutes to allow the calibration gas to be drawn out and the reading to stabilize. Close the housing door. Store the components of the calibration kit in a safe and convenient place. 20 • 35-3010RKA-07 Sample-Draw Detector... -
Page 25: Calibration, Oxygen Detector
If necessary, use the span pot on the transmitter to adjust the reading to match the correct response reading. Disconnect the sample tubing from the inlet line. Unscrew the regulator from the 4-gas calibration cylinder. 35-3010RKA-07 Sample-Draw Detector • 21... -
Page 26: Setting The Fresh Air Reading
Wait 1 to 2 minutes to allow the calibration gas to be drawn out and the reading to stabilize. Close the housing door. Store the components of the calibration kit in a safe and convenient place. 22 • 35-3010RKA-07 Sample-Draw Detector... -
Page 27: Parts List
Zero air calibration cylinder (34 liter) 81-0154RK-04 4-gas calibration gas cylinder, 50% LEL methane/12% oxygen/25 ppm H S/50 ppm CO, 34 liter 81-1055RK Regulator, demand flow, for 17 and 34 liter steel cylinders ES-1537-H2S S sensor 35-3010RKA-07 Sample-Draw Detector • 23...
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