RKI Instruments 65-2495RK User manual

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Part Number: 71-0155RK
Revision: A
Released: 6/17/20
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THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER
WARRANTIES AND REPRESENTATIONS, EXPRESSED OR IMPLIED, AND ALL
OTHER OBLIGATIONS OR LIABILITIES ON THE PART OF RKI INSTRUMENTS,
INC. INCLUDING BUT NOT LIMITED TO, THE WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO
EVENT SHALL RKI INSTRUMENTS, INC. BE LIABLE FOR INDIRECT,
INCIDENTAL, OR CONSEQUENTIAL LOSS OR DAMAGE OF ANY KIND
CONNECTED WITH THE USE OF ITS PRODUCTS OR FAILURE OF ITS
PRODUCTS TO FUNCTION OR OPERATE PROPERLY.
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a) Absorbent cartridges d) Batteries
b) Pump diaphragms and valves e) Filter elements
c) Fuses
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Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
65-2495RK H2S Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Junction Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting the H2S Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Wiring the H2S Detector to a Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Introducing Incoming Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Setting the Zero (Fresh Air) Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Replacing Components of the H2S Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Calibration Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Preparing for Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Setting the Zero (Fresh Air) Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Setting the Response Reading (Span) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
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WARNING: When using the 65-2495RK/65-2498RK, you must follow the instructions and
warnings in this manual to assure proper and safe operation of the 65-
2495RK/65-2498RK and to minimize the risk of personal injury. Be sure to
maintain and periodically calibrate the 65-2495RK/65-2498RK as described in
this manual.
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Rubber Spacer, 3X
3/4 NPT Conduit Hub
Junction Box
Note: Thereis a twopoint
terminal strip inside the
junction box for detector
connections.
2
HSDetector
Detector Housing Body
Cap Gasket
Hydrophobic
Membrane
Detector
Housing Cap
H2S Plug-in Sensor
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Rubber
Spacer, 3X
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2.70
2
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Detector
7.30 .25
3.65
3/4" NPT
+
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Conduit Hub
65-2498RK
11/2-20Threadfor
Calibration Cup
Junction
Box
1.32
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Ø1.75
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WARNING: Always verify that power to the controller is OFF before you make wiring
connections.
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CAUTION: If using shielded cable, leave the drain wire insulated and disconnected at the
detector. You will connect the opposite end of the cable’s drain wire at the
controller.
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CAUTION: Do not route power and detector wiring through the same conduit hub. The
power cable may disrupt the transmission of the detector signal to the controller.
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PDQXDO
Red
Shielded Cable
S
+
Controller Detector Terminals,
Typical Designations
Controller Housing
Terminal Strip
Black
HSDetector
2
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CAUTION: Allow the detector to warm up for 5 minutes before you continue with the next
section, “Setting the Zero (Fresh Air) Reading”.
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CAUTION: If you suspect the presence of H2S in the monitoring environment, use the
calibration kit and a zero air calibration cylinder to introduce “fresh air” to the
H2S detector and verify an accurate zero setting. See “Calibration” on page 16
for instructions to introduce zero air to the H2S detector.
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Daily
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Fail Condition
Symptoms
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Probable causes
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Recommended action
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Slow or No Response/Difficult or Unable to Calibrate
Symptoms
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Probable causes
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Recommended action
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Replacing the Plug-in H2S Sensor
CAUTION: The plug-in sensor contains electrolyte which is a dilute acid. Do not
disassemble the sensor when replacing it with a new one. If sensor electrolyte
comes in contact with your skin, wash affected area thoroughly with soap and
water.
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WARNING: The H2S sensor will not operate properly if the wire jumper is not removed.
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WARNING: You must replace the plug-in sensor with the same type of sensor that is
installed. A detector cannot be converted from one type of detector to another
by using a different plug-in sensor. For example, if you are replacing an H26
sensor, you must replace it with an H26sensor.
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CAUTION: Allow the replacement sensor to warm up for 5 minutes before you continue with
the next step.
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Replacing the Hydrophobic Membrane
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Remove jumper
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5.5.+6'HWHFWRU
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Replacing the H2S Detector
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CAUTION: Allow the replacement detector to warm up for 5 minutes before you continue
with the next step.
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WARNING: Not using the recommended calibration cup and sample flowrate will result in
an inaccurate calibration. See“Parts List” on page 18 for the required
calibration cup and regulator.
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