Related Manuals for RKI Instruments 65-2405RK-04
Summary of Contents for RKI Instruments 65-2405RK-04
- Page 1 65-2405RK-04 Combustible Gas Transmitter Operator’s Manual Part Number: 71-0280RK Revision: P1 Released: 5/30/13 1.800.561.8187 information@itm.com www. .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. 65-2405RK-04 Combustible Gas Transmitter 1.800.561.8187 information@itm.com www.
- 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 ..............19 65-2405RK-04 Combustible Gas Transmitter 1.800.561.8187... -
Page 5: Overview
WARNING: When using the 65-2405RK-04, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 65-2405RK-04 and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 65-2405RK-04 as described in this manual. -
Page 6: Description
Term inal S trip Detector Terminal Strip Am plifier J-Box Detector J-B ox Com bustible Gas D etector Calibration C up/S plash Guard Figure 1: Combustible Gas Transmitter Component Location 2 • 65-2405RK-04 Combustible Gas Transmitter 1.800.561.8187 information@itm.com www. .com... -
Page 7: Combustible Gas Detector
The span pot is located to the right of the zero pot (see Figure 1). Use a small flat blade screwdriver to turn the span pot’s adjustment screw and adjust the amplifier’s gas response output during the calibration procedure. Turn the adjustment screw clockwise to 65-2405RK-04 Combustible Gas Transmitter • 3 1.800.561.8187 information@itm.com www. -
Page 8: Amplifier Junction Box
For lighter gases, mount the detector near the ceiling; for heavier gases, mount the detector near the floor. • The junction boxes should be mounted no further than 200 feet from each other. 4 • 65-2405RK-04 Combustible Gas Transmitter 1.800.561.8187 information@itm.com www. - Page 9 Install 3/16 inch I.D. flexible polyurethane tubing to the fitting at the bottom of the calibration cup/splash guard and route it to an accessible area that is close to the amplifier junction box. See the “Parts List” on page 19 for available tubing. 65-2405RK-04 Combustible Gas Transmitter • 5 1.800.561.8187 information@itm.com www.
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Page 10: Wiring The Detector To The Amplifier
To make wiring more convenient, use wire colors that correspond to the detector wire colors: red, white, green, and black. NOTE: Consult RKI Instruments, Inc. for cable lengths longer than 200 feet. Connect the detector leads to the terminal block in the detector junction box. - Page 11 Install a lug on the shield drain wire or wrap the shield drain wire around the mounting screw. Do not connect the shield drain wire at the detector junction box. 65-2405RK-04 Combustible Gas Transmitter • 7 1.800.561.8187 information@itm.com www.
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Page 12: Wiring The Amplifier To A Controller
The power cable may disrupt the transmission of the transmitter signal to the controller. Connect the wires to the applicable detector/transmitter terminal strip at the controller as shown in Figure 4. 8 • 65-2405RK-04 Combustible Gas Transmitter 1.800.561.8187 information@itm.com www. - Page 13 10. If shielded cable is used, connect the cable’s drain wire to an available chassis (earth) ground at the controller. RKI controllers typically have a ground stud that can be used to ground the cable’s drain wire. 65-2405RK-04 Combustible Gas Transmitter • 9 1.800.561.8187 information@itm.com www.
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Page 14: Startup
The procedure below describes applying zero emission air, usually called zero air, using a calibration kit that includes a calibration cup, calibration gas, sample tubing, and a fixed flow regulator with an on/off knob. RKI Instruments, Inc. recommends using a 0.5 LPM (liters per minute) fixed flow regulator. -
Page 15: Maintenance
NOTE: The following procedure assumes the use of a calibration kit which includes a calibration gas cylinder, a 0.5 LPM fixed flow regulator with an on/off knob, a calibration cup for the detector, and a length of sample tubing. 65-2405RK-04 Combustible Gas Transmitter • 11 1.800.561.8187 information@itm.com www. - Page 16 10. Store the components of the calibration kit in a safe place. Quarterly Calibrate the combustible gas transmitter as described in “Calibration” on page 17 of this manual. 12 • 65-2405RK-04 Combustible Gas Transmitter 1.800.561.8187 information@itm.com www. .com...
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Page 17: Troubleshooting
This junction box was likely installed somewhere difficult to access. Turn off the controller. Turn off or unplug power to the controller. Unscrew the calibration cup/splash guard from the detector. 65-2405RK-04 Combustible Gas Transmitter • 13 1.800.561.8187 information@itm.com www. .com... - Page 18 Install the new amplifier into the junction box with the screw, lock washer, and flat washer you removed in step 5 above. Install the detector and controller terminals strips into their sockets on the new 14 • 65-2405RK-04 Combustible Gas Transmitter 1.800.561.8187 information@itm.com www.
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Page 19: Calibration Frequency
3 to 6 months is adequate for most combustible gas transmitter applications. Unless experience in a particular application dictates otherwise, RKI Instruments, Inc. recommends a calibration frequency of every 3 months. 65-2405RK-04 Combustible Gas Transmitter • 15 1.800.561.8187... -
Page 20: Determining Response Time
10. Add 1 minute to the length of time determined in step 6. This is the response time for the detector. When performing a response test, zero adjustment, or span adjustment, gas must be applied for this length of time. 16 • 65-2405RK-04 Combustible Gas Transmitter 1.800.561.8187 information@itm.com www. -
Page 21: Calibration
Time” on page 16 and verify a reading of 100 mV (±2 mV). If necessary, use the zero pot on the amplifier to adjust the reading to 100 mV (±2 mV). Turn the regulator’s on/off knob clockwise to close the regulator. 65-2405RK-04 Combustible Gas Transmitter • 17 1.800.561.8187 information@itm.com www. -
Page 22: Setting The Response Reading
When the controller display reading falls below the alarm setpoints, return the controller to normal operation. Verify that the controller display reading decreases and stabilizes at 0 %LEL. Store the components of the calibration kit in a safe and convenient place. 18 • 65-2405RK-04 Combustible Gas Transmitter 1.800.561.8187 information@itm.com www. -
Page 23: Parts List
61-0140RK Combustible gas sensor 65-2405RK-04 Methane transmitter (includes detector, two junction boxes, and amplifier) 71-0280RK 65-2405RK-04 Combustible Gas Transmitter Operator’s Manual (this document) 81-0004RK-01 Steel calibration cylinder, 50% LEL propane in air, 34-liter 81-0012RK-01 Steel calibration cylinder, 50% LEL methane in air, 34-liter...
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