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Summary of Contents for RKI Instruments 35-3001-01H
- Page 1 35-3001-01H Hydrogen Sample-Draw Detector Operator’s Manual Part Number: 71-0320RK Revision: A Released: 8/3/17 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. 35-3001-01H Hydrogen 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 35-3001-01H Hydrogen Sample-Draw Detector... -
Page 5: Overview
WARNING: When using the 35-3001-01H, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 35-3001-01H and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 35-3001-01H as described in this manual. -
Page 6: Description
Figure 1: Hydrogen Sample-Draw Detector Component Location External Components This section describes the sample-draw detector’s external components. Housing The sample-draw detector’s fiberglass housing is weather- and corrosion-resistant. It is suitable for installation where general purpose equipment is in use. 2 • 35-3001-01H Hydrogen Sample-Draw Detector... -
Page 7: Internal Components
Figure 2: Hydrogen Sample-Draw Detector Flow Diagram Main Circuit Board The main circuit board includes the detector/amp terminal strip, interconnect terminal strip, oxygen sensor terminal strip, pump connector, and flowmeter circuit board connector (see Figure 1). 35-3001-01H Hydrogen Sample-Draw Detector • 3... - Page 8 The sensor flow control valve is mounted to the flowmeter circuit board above the flowmeter. The sensor flow control valve adjusts the flow rate to the detector. Turn the valve’s knob counterclockwise to increase the flow and clockwise to decrease the flow. 4 • 35-3001-01H Hydrogen Sample-Draw Detector...
- Page 9 The connector allows you to replace the sensor without disconnecting the wiring. Four leads extending from the connector allow you to connect the hydrogen sensor to the main circuit board. 35-3001-01H Hydrogen Sample-Draw Detector • 5...
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Page 10: Installation
Are the flowmeter and status LEDs visible? 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 • 35-3001-01H Hydrogen 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 Hydrogen 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 35-3001-01H for detector/terminal strip connections specific to the controller.
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Page 14: Start Up
If the display reading is not 0 % LEL, continue with step 3. 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. 10 • 35-3001-01H Hydrogen Sample-Draw Detector... -
Page 15: Maintenance
± 20% of the concentration of the test sample. If the reading is not within ± 20% of the test sample, calibrate the sample-draw detector as described in “Calibration” on page 16. Remove the calibration tubing from the inlet fitting, then reconnect the sample tubing to the inlet fitting. 35-3001-01H Hydrogen Sample-Draw Detector • 11... -
Page 16: Troubleshooting
Calibrate the sample-draw detector as described in “Calibration” on page 16. If the fail condition continues, replace the sensor as described in “Replacing the Hydrogen 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 Hydrogen 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 Hydrogen Sample-Draw Detector This section includes procedures to replace the sensor, hydrophobic filter, and particle filter. -
Page 18: 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. 14 • 35-3001-01H Hydrogen 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. 35-3001-01H Hydrogen Sample-Draw Detector • 15... -
Page 20: Calibration Frequency
Although there is no particular calibration frequency that is correct for all sample draw detector applications, a calibration frequency of every 3 to 6 months is adequate for most applications. Unless experience in a particular application dictates otherwise, RKI Instruments, Inc. recommends a calibration frequency of every 3 months. -
Page 21: Returning To Normal Operation
Regulator, demand flow, for 34 liter aluminum, 58 liter, and 103 liter calibration cylinders (cylinders with internal threads) 81-1055RK Regulator, demand flow, for 17 liter and 34 liter steel calibration cylinders (cylinders with external threads) 35-3001-01H Hydrogen Sample-Draw Detector • 17...
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