RKI Instruments 65-2340RKSS User Manual
65-2340RKSS
Toxic Gas Transmitter
Operator’s Manual
Part Number: 71-0302RK
Revision: P1
Released: 1/21/14
RKI Instruments, Inc.
www.rkiinstruments.com
WARNING
Read and understand this instruction manual before operating
detector . Improper use of the dete ctor could result in bodily harm
or death.
Periodic calibration and maintenance of the detector is essential
for proper operation and correct readings. Please calibrate and
maintain this detector regularly! Frequency of calibration
depends upon the type of use you have and the sensor types.
T ypical calibration frequencies for most applications a re between
3 and 6 months, but can be required more often or less often
based on your usage.
65-2340RKSS Toxic Gas Transmitter
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 fr o m date of shipment
from RKI Instruments, Inc. Any parts found defective withi n tha t period will be repaired
or replaced, at our option, free of charge. This warranty does not apply to those items
which by their nature are subject to deterioration or consumption in normal ser v ice, and
which must be cleaned, repaired, or replaced on a routine basis. Examples of such items
are:
W arranty is voided by abuse including mechanical damage, alteration, rough handling, or
repair procedures not in accordance with the operator’s manual. This warranty indicates
the full extent of our liability , a nd we are not r esponsible for removal or r eplacement costs,
local repair costs, transportation costs, or contingent expenses incurred without our prior
approval.
a) Absorbent cartridges d) Batteries
b) Pump diaphragms and valves e) Filter elements
c) Fuses
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.
This warranty covers instruments and parts sold to users by authorized distributors,
dealers, and representatives as appointed by RKI Instruments, Inc.
We do not assume inde mn ification for any accident or dama g e c au s e d b y t he op e ration of
this gas monitor, and our warranty is limited to the replacement of parts or our complete
goods.
65-2340RKSS Toxic Ga s Trans mitte r
Table of Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Toxic Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Junction Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mounting the Toxic Gas Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Wiring the Toxic Gas Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Introducing Incoming Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Setting the Zero Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Replacing Components of the Toxic Gas Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Calibration Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Preparing for Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Setting the Zero Reading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Setting the Response Reading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Returning to Normal Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
65-2340RKSS Toxic Gas Transmitter
Overview
This manual describes the 65-2340RKSS toxic gas transmitter. This manual also describes
how to install, start up, maintain, and calibrate the toxic gas transmitter when used with a
gas monitoring controller. A parts list at the end of this manual lists replacement parts and
accessories for the toxic gas transmitter.
The 65-2340RKSS toxic gas transmitter can be used for various target gases which are
listed in T able 1 below. For a particular target gas, the part number of the toxic transmitter
will be of the format 65-2340RKSS-XXX. For example, 65-2340RKSS-NH3 is for ammonia
(NH
Specifications
Table 1 lists specifications for the toxic gas transmitt er.
) detection.
3
Table 1: Specifications
Target Gas 65-2340RKSS-ASH3: Arsine (AsH
65-2340RKSS-CL2: Chlorine (Cl
65-2340R K SS-CL-10: C hlorine (Cl
)
3
)
2
)
2
65-2340RKSS-HCN: Hydrogen Cyanide (HCN)
65-2340RKSS-NH3: Ammonia (NH
65-2340RKSS-SO2: Sulphur Dioxide (SO
65-2340RKSS-PH3: Phosphine (PH
)
3
)
2
)
3
Sampling Method Diffusion
Detection Range AsH
: 0 - 1.50 ppm
3
: 0 - 3.00 ppm
Cl
2
Cl
: 0 - 10.0 ppm
2
HCN: 0 - 15.0 ppm
: 0 - 75.0 ppm
NH
3
: 0 - 6.00 ppm
SO
2
: 0 - 1.00 ppm
PH
3
Accuracy ± 10% of reading or ± 5% of full scale (whichever is greater)
Signal Output 4 to 20 mA
Response Time • Cl
and NH3: T90 in 90 seconds
2
• All others: T90 in 45 seconds
Operating Temperature &
Humidity
WARNING: When using the 65-2340RKSS, you must follow the instructions and
• 14°F to 104°F (-10°C to 40°C)
• 20% to 90% Relative Humidity
warnings in this manual to assure proper and safe opera tion of the
65-2340RKSS and to minimize the risk of personal injury. Be sure to
maintain and periodically calibrate the 65-2340RKSS as described in this
manual.
65-2340RKSS Toxic Gas Tr a nsm itter • 1
Description
This section describes the components of the toxic gas transmitter. The toxic gas
transmitter is a 4 - 20 mA type detector head. It consists of the toxic detector, amplifier,
and juncti on box.
Factory Adjust Pot
Span Pot
Zero Pot
Red +TestPoint
Black - Test Point
J-B ox
Controller TerminalS trip
Amplifier
ZERO
SPAN
S
SIG /P W R
TOXIC OXY
Mounting Screw
Detector Termi nalStrip
Toxic Detector
Figure 1: Toxic Transmitter Component Location
2 • 65-2340RKSS Toxic Gas Transmitter
Toxic Detector
The toxic detector consists of the detector housing body, detector housing cap,
splashguard, cap gasket, and the plug -in sensor.
Det e c tor H o us ing Body
(different for each detector type)
Cap Gasket
Sensor
(different for each detector type)
Detect or Ho usin g
Cap
Splas h Guard
(removable)
Figure 2: Toxic Detector Component Location
Detector Housing Body
The detector housing body protects the electronic components within the housing. Use the
mounting threads at the top of the housing to screw the toxic detector into the 3/4” NPT
hub on the bottom of the junction box. Two wires extend from the top of the detector
housing body. Use these wires to connect the toxic detector to the amplifier. One of the
wires is black and one of the wires is color coded depending on the detector type. See
Figure 4 on page 7 for the color code assignments.
The housing body includes a 12 position connector at the bottom of the housing body. The
plug-in sensor mates to this connector. A pre-amplifier located between the connector and
the two interconnect wires conditions the sensor’s signal before the signal reaches the
controller . Ea ch plug-in sensor type (Cl
for example) requires a diffe rent pr e-amplifier, so
2
there is a different detector housing body for each gas type.
Housing Cap, Cap Gasket, & Splashguard
The housing cap screws onto the detector housing. It retains the plug-in sensor and
protects it from damage. A removable splashguard is screwed onto the detector cap to
protect the sensor from impact damage, direct water spray, and splashing. Unscrew the
detector cap to access the sensor for maintenance or replacement. A cap gasket seals the
interface between the housing and cap.
Plug-In Sensor
The plug-in sensor is secured in the detector assembly by the housing cap. There is a
different sensor for each target gas. Through a series of chemical and electrical reactions,
the sensor produces an electrical output that corresponds to the detection range of the
sensor.
Amplifier
The amplifier converts the electrical output from the detector to a 4 to 20 mA signal that
corresponds to the detection range and transmits the signal to a gas monitoring controller .
65-2340RKSS Toxic Gas Tr a nsm itter • 3
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