Related Manuals for RKI 35-3010A-12
Summary of Contents for RKI 35-3010A-12
- Page 1 35-3010A-12 Sample-Draw Detector Part Number: 71-0500 Revision: P1 Released: 7/17/19 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. 35-3010A-12 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 ..............26 35-3010A-12 Sample-Draw Detector... -
Page 5: Overview
± 5% of reading or ± 5 ppm CO (whichever is greater) WARNING: When using the 35-3010A-12, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 35-3010A-12 and to minimize the risk of personal injury. -
Page 6: Description
Description This section describes the components of the 35-3010A-12 sam . The sample-draw ple-draw detector detector consists of the housing, flow system, and detection system. Charcoal Filter Hydrophobic Filter (AcroPak) Oxygen Transmitter Main Circuit B oard Reset Switch Am p 1... -
Page 7: 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. 35-3010A-12 Sample-Draw Detector • 7... - Page 8 S and CO channels. 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 oxygen channel. 8 • 35-3010A-12 Sample-Draw Detector...
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Page 9: Detection System
The transmitter type selector is near the bottom left corner of the amplifier. It is to the left of the detector terminal strip and below the span pot. The transmitter included with the sample-draw detector is designed for use with RKI’s oxygen and toxic gas sensors. The transmitter type selector determines for which sensor the amplifier is... - Page 10 Terminal Strip Strip Figure 4: Main Circuit Board The main circuit board includes the interconnect terminal strip, sensor/transmitter terminal strip, amp 1 circuit, amp 2 circuit, pump terminal strip, relay, and reset switch (see Figure 4). 10 • 35-3010A-12 Sample-Draw Detector...
- Page 11 S and CO channels which will cause a downscale reading at the controller or recording device. NOTE: There is no flow fail indication for the oxygen channel on the 35-3010A-12. Reset Switch A small reset button is located in approximately the upper left corner of the main PCB. When a low flow condition occurs, the pump will be shut off.
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Page 12: Installation
Tube, 2X Figure 5: Outline and Mounting Dimensions Close and latch the housing door. NOTE: The sample-draw detector is shipped with the mounting feet “tucked under” the housing to protect the mounting feet during shipment. 12 • 35-3010A-12 Sample-Draw Detector... -
Page 13: Connecting The Sample Lines To The Sample-Draw Detector
CAUTION: Leave the cable shield drain wire insulated and disconnected at the sample-draw detector. You will connect the opposite end of the drain wire at the device. Route the cable or wires in conduit leading from the sample-draw detector to the monitoring device and power. 35-3010A-12 Sample-Draw Detector • 13... - Page 14 Connect the drain wire to an available chassis ground at the device end. RKI controllers typically have a ground stud that can be used to ground the cable’s drain wire. Sample Draw Housing Main Circuit Board Interconnect Terminal Strip Oxygen...
- Page 15 T O X IC Green White Pump Pressure Switch Factory Factory Wired Wired Oxygen S ensor CO and H2S Sensors Plug Into Far S ide of P reamp Circuit Board Figure 7: Internal (Factory) Wiring 35-3010A-12 Sample-Draw Detector • 15...
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Page 16: Start Up
S channel, plug the voltmeter into the test points in the AMP 2 section of the main circuit board. 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). 16 • 35-3010A-12 Sample-Draw Detector... -
Page 17: Operation
NOTE: There is no flow fail indication for the oxygen channel on the 35-3010A-12. Maintenance This section describes maintenance procedures. It includes preventive maintenance procedures. -
Page 18: Troubleshooting
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 •... -
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 This section includes procedures to replace the sensors, the hydrophobic filter, and the charcoal filter. - Page 20 WARNING: The sensor will not operate properly if the wire jumper is not removed. Remove jumper Figure 9: Jumper Removal Plug the new sensor into the preamp board. 20 • 35-3010A-12 Sample-Draw Detector...
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Page 21: Adjusting The Low Flow Setting
Verify that the low flow alarm is 0.6 SCFH (±0.2). Repeat steps 3 and 4 if necessary. Use the flow adjust potentiometer (VR1) to set the flow to 1.2 SCFH. Make sure the sample-draw detector’s Fail light is off. 35-3010A-12 Sample-Draw Detector • 21... -
Page 22: 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 sample draw detector. -
Page 23: 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. 35-3010A-12 Sample-Draw Detector • 23... -
Page 24: Calibration, Co And H 2 S Detectors
100 mV ± 2 mV. Disconnect the sample tubing from the inlet line. Unscrew the regulator from the zero air cylinder. Leave the sample tubing connected to the regulator. 24 • 35-3010A-12 Sample-Draw Detector... -
Page 25: Setting The Response Reading
Wait 1 to 2 minutes to allow the calibration gas to be drawn out and the readings to stabilize. Close the housing door. Store the components of the calibration kit in a safe and convenient place. 35-3010A-12 Sample-Draw Detector • 25... -
Page 26: Parts List
Regulator, demand flow, for 34 liter aluminum, 58 liter, and 103 liter cylinders (cylinders with internal threads) 81-1055RK Regulator, demand flow, for 17 and 34 liter steel cylinders (cylinders with external threads) ES-1531-CO CO sensor ES-1537-H2S S sensor 26 • 35-3010A-12 Sample-Draw Detector...
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