RKI Instruments 65-2331RK User manual

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Part Number: 71-0176RK
Revision: C
Released: 6/11/20
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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 APARTICULAR 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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Target Gas Hydrogen sulfide (H2S)
Area Classification Explosion-proof for Class I, Groups B, C, and D
Temperature Code T6
Installation Category Installation Category 1. Signal level, special equipment or
parts of equipment, telecommunication, electronic, etc., with
smaller transient overvoltages than Installation Category
(Overvoltage Category) II (ref. IEC 664).
Input Voltage 11 VDC - 30 VDC
Sampling Method Diffusion
Signal Output 4 to 20 mA
Detection Range 0 to 100 PPM (parts per million)
Accuracy ± 5% of reading or ± 2 ppm H2S (whichever is greater)
H2S Detector Signal
Output 0.3 mA at 0 ppm H2S nominal
2.5 mA at 100 ppm H2S nominal
Response Time 90% in 30 seconds
Operating Temperature -40°F to 104°F (-40°C to 40°C)
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Zero Pot
Span Pot
Factory Adjust Pot
TOXIC OXY
+ Test Point (Red)
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Flame
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H2S Plug-inSensor
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Controller Terminal Strip
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Detector Terminal Strip
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127( 7KH+6GHWHFWRULVIDFWRU\ZLUHGWRWKHGHWHFWRUWHUPLQDOVWULS6HHWKH,QVWDOODWLRQ
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Zero Pot
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Span Pot
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CAUTION:The third potentiometer is factory-set. Do not adjust it.
Test Points
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3.10
.75 .38
Rubber
Spacers
3X
J-Box
3.65
3/4 NPT
Female
H2S Detector
1 1/2-20 Thread for
Calibration Cup
8.18 Max
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WARNING: Always verify that power to the controller is OFF before you make wiring
connections.
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WARNING: To maintain the explosionproof classification of the HS detector/junctionbox
combination, a conduit seal must be used within 18 inches of the junction box
conduit hub used for wiring to the controller.
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CAUTION:If shielded cable is used, leave the cable shield’s drain wire insulated and
disconnected at the transmitter. You will connect the opposite end of the cable’s
drain wire to the controller’s chassis (earth) ground.
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CAUTION:Do not route power and transmitter wiring through the same controller conduit
hub. The power cable may disrupt the transmission of the transmitter signal to the
controller.
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TO XIC OX Y
SPAN ZERO
S
SIG/PWR
S
Controller Detector/Transmitter
Terminals, Typical Designations +
Red
Black
Cable Shield
J-Box
H2S Detector
Controller
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CAUTION:Allow the transmitter to warm up for 5 minutes before you continue with the next
section, “Setting the Zero Signal”.
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WARNING: Do not remove the detector housing cap or junction box cover while the
circuits are energized unless the area is determined to be non-hazardous.
Keep the detector housing cap and junction box cover tightly closed during
operation.
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Note: Under
“normal”
circumstances, the
transmitter requires
calibration once every
3 months.
Some applications
may require a more
frequent calibration
schedule.
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Replacing the Plug-In H2S Sensor
CAUTION:The 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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Remove jumper
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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 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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Replacing the Amplifier
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