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Summary of Contents for RKI Instruments 35-3001-06-01
- Page 1 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector Operator’s Manual Part Number: 71-0292RK Revision: A Released: 8/7/17 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. 35-3001-06-01 Combustible Gas/Oxygen 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 ..............20 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector... -
Page 5: Overview
WARNING: When using the 35-3001-06-01, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 35-3001-06-01 and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 35-3001-06-01 as described in this manual. -
Page 6: Description
Fitting Figure 1: Combustible Gas/Oxygen 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 2 • 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector... -
Page 7: Internal Components
Figure 2: Combustible Gas/Oxygen 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). 35-3001-06-01 Combustible Gas/Oxygen 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 • 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector...
- Page 9 The leads extending from the sensor terminate in lugs that connect to the oxygen terminal strip. 35-3001-06-01 Combustible Gas/Oxygen 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 • 35-3001-06-01 Combustible Gas/Oxygen 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 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 35-3001-06-01 for detector/terminal strip connections specific to the controller.
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Page 14: Start Up
If the display reading is 0 %LEL for the combustible channel and 20.9% for the oxygen channel, start up is complete. The sample-draw detector is in normal operation. If the display 10 • 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector... -
Page 15: Maintenance
“Calibration, IR LEL Sensor” on page 17 or “Calibration, Oxygen Sensor” on page 18, then continue this procedure. Performing the response test Screw the demand flow regulator into the combustible gas calibration cylinder. 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector • 11... -
Page 16: Troubleshooting
If you cannot set the correct flow rate, check the sample lines for obstructions or kinks. Verify that the sensor wiring is correct and secure. “Wiring the Sample-Draw Detector to a Controller” on page 8 describes sensor wiring connections. 12 • 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector... -
Page 17: Replacing Components Of The Sample-Draw Detector
If the fail condition continues, replace the sensor(s) as described in “Replacing Components of the Sample-Draw Detector” 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 18 Install the new filter. Be sure the side of the filter marked “INLET” is connected to the elbow that is connected to the inlet fitting. Turn on power to the controller. Turn on the controller. Verify that the flow rate is approximately 1.0 SCFH, then close the housing door. 14 • 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector...
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Page 19: 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. 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector • 15... -
Page 20: 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. 16 • 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector... -
Page 21: Calibration Frequency
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 oxygen detector and every 6 months for the infrared LEL detector. -
Page 22: Setting The Response Reading
Allow the sample draw detector to draw sample for one minute. Follow the directions in the controller’s operator’s manual for setting the fresh air reading. Disconnect the sample tubing from the inlet fitting. Unscrew the regulator from the zero air calibration cylinder. 18 • 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector... -
Page 23: Setting The Zero Reading
NOTE: If you do not allow the oxygen reading to return to normal, then unwanted alarms may occur. Verify that the controller display reading stabilizes at 20.9%. Store the components of the calibration kit in a safe and convenient place. 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector • 19... -
Page 24: Parts List
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) OS-B11 Oxygen sensor 20 • 35-3001-06-01 Combustible Gas/Oxygen Sample-Draw Detector...
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