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Summary of Contents for RKI Instruments 35-3010RKA-04
- Page 1 35-3010RKA-04 Sample-Draw Detector Head Part Number: 71-0213RK Revision: E Released: 6/5/17 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-04 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-04 Sample-Draw Detector... -
Page 5: Overview
WARNING: When using the 35-3010RKA-04, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 35-3010RKA-04 and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 35-3010RKA-04 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-04 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-04 Sample-Draw Detector • 3... - Page 8 LEL and oxygen channels and the signal in the 4-20 mA line for the CO and H S channels. This causes a downscale reading at the monitor on these channel. The low flow level is factory-set at 0.6 SCFH (±0.2 SCFH). 4 • 35-3010RKA-04 Sample-Draw Detector...
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Page 9: Detection System
The cable that extends from the sensor terminates in a socket that plugs into a matching 7-pin male connector. The socket and connector allow you to replace the sensor without disconnecting the wiring. The sensor leads are soldered to the male connector. 35-3010RKA-04 Sample-Draw Detector • 5... - Page 10 Hydrogen Sulfide Gas Sensor The hydrogen sulfide gas sensor position is located in the upper right side of the flow block. In the 35-3010RKA-04, the hydrogen sulfide gas sensor position in the flow block is occupied by a dummy sensor.
- Page 11 S sensor signal. Since both the CO and H S sensors are replaced with a dummy plug in the 35-3010RKA-04 the CO and H S sensor signal cables carry no signal in this version of the 35-3010RK. 35-3010RKA-04 Sample-Draw Detector • 7...
- Page 12 NOTE: The sensors and transmitters are factory wired to the sensor/transmitter terminal strip. See “Wiring the Sample-Draw Detector” on page 11 for all wiring procedures related to the sample-draw detector. 8 • 35-3010RKA-04 Sample-Draw Detector...
- Page 13 A small reset button is located in the upper left corner of the main PCB. When a low flow condition occurs, the pump will be shut off. To reset the low flow condition and start the pump again, press and hold the reset switch for about 2 seconds, then release. 35-3010RKA-04 Sample-Draw Detector • 9...
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Page 14: Installation
Slightly loosen the screw that secures one of the mounting feet to the housing, then rotate the mounting foot 180 degrees. Tighten the screw that secures the mounting foot to the housing. 10 • 35-3010RKA-04 Sample-Draw Detector... -
Page 15: 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. RKI controllers typically have a ground stud that can be used to ground the cable’s drain wire. 35-3010RKA-04 Sample-Draw Detector • 11... - Page 16 Sample Draw Housing Main Circuit Board Reset Switch Interconnect Terminal Strip Oxygen 4/20 (Feedback) 24 VDC (Controller Transmitter (Controller Trasnmitter 24 VDC Terminals) 4/20 (Feedback) Terminals) Figure 6: External (Field) Wiring, Sample-Draw Detector 12 • 35-3010RKA-04 Sample-Draw Detector...
- Page 17 O X Y TOXIC SPAN Z ERO Green Black White Green White Pump Pressure Switch Factory Factory Wired Wired LEL Sensor Connector Detector Oxygen Sensor (Not (Not Used) Used) Figure 7: Internal (Factory) Wiring, Sample-Draw Detector 35-3010RKA-04 Sample-Draw Detector • 13...
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Page 18: Start Up
Verify a voltmeter reading of 100 mV (± 2 mV). If necessary, use a small flat-blade screwdriver to adjust the zero pot until the voltmeter reading is 100 mV (± 2 mV). Close the housing door. 14 • 35-3010RKA-04 Sample-Draw Detector... -
Page 19: Operation
Verify that the controller is reading 0 for the combustible channel and 20.9 for the oxygen channel. If the reading is not 0 on the combustible channel or 20.9 on the oxygen channel, set 35-3010RKA-04 Sample-Draw Detector • 15... -
Page 20: Troubleshooting
Verify that the sensor and transmitter wiring are correct and secure. “Installation” on page 10 describes detector wiring connections. Calibrate the problem channel or channels as described in the Calibration section. If the fail condition continues, replace the sensor from the problem channel or 16 • 35-3010RKA-04 Sample-Draw Detector... -
Page 21: Replacing Components Of The Sample-Draw Detector
If the fail condition continues, contact RKI Instruments, Inc. for further instruction. Slow or No Response/Difficult or Unable to Calibrate Symptoms • One or more of the sensors respond slowly or does not respond during the monthly response test. -
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-04 because it does not include a CO sensor. Turn off or unplug power to the controller. -
Page 23: Calibration Frequency
Set a voltmeter to measure in the millivolt (mV) range. Plug the voltmeter into the test points on the LEL transmitter. Plug the positive lead into the test point labeled TP+; plug the negative lead into the test point labeled TP-. 35-3010RKA-04 Sample-Draw Detector • 19... -
Page 24: Setting The Zero Reading
Remove the voltmeter leads from the test points. Reconnect the incoming sample line. Wait 1 to 2 minutes to allow the calibration gas to be drawn out and the reading to stabilize. Close the housing door. 20 • 35-3010RKA-04 Sample-Draw Detector... -
Page 25: Calibration, Oxygen Detector
(±2 mV) you determined earlier (292 mV for 12% oxygen). 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. 35-3010RKA-04 Sample-Draw Detector • 21... -
Page 26: Setting The Zero 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-04 Sample-Draw Detector... -
Page 27: Parts List
Oxygen sensor 81-0076RK-01 Zero air calibration cylinder (34 liter) 81-0090RK-01 3-gas calibration gas cylinder, 50% LEL methane/12% oxygen/50 ppm CO, 34 liter 81-1055RK Regulator, demand flow, for 17 and 34 liter steel cylinders NC-6245 Combustible sensor 35-3010RKA-04 Sample-Draw Detector • 23...
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