RKI Instruments 65-2302, 65-2303 Operator's Manual

65-2302/65-2303

CT-7 Series

Toxic Detector

Operator’s Manual

Part Number: 71-0422

Revision: 0

Released: 6/26/18

www.rkiinstruments.com

WARNING

Read and understand this instruction manual before operating
detector. Improper use of the detector 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.
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.

65-2302/65-2303 Toxic Detector

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. This warranty does not apply to those items
which by their nature are subject to deterioration or consumption in normal service, and
which must be cleaned, repaired, or replaced on a routine basis. Examples of such items
are:

Warranty 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, and we are not responsible for removal or replacement costs,
local repair costs, transportation costs, or contingent expenses incurred witho u t 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 F ITNESS 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 d istributors,
dealers, and representatives as appointed by RKI Instruments, Inc.

We do not assume indemnification for any a ccident or damage caused by the opera tion of
this gas monitor, and our warranty is limited to the replacement of parts or our complete
goods.

65-2302/65-2303 Toxic Detector

Table of Contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

65-2302 Toxic Detector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Junction Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Mounting the Toxic Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Wiring the Toxic Detector to a Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Introducing Incoming Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Setting the Zero (Fresh Air) Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Replacing Components of the Toxic Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Calibration Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Special Note About Calibrating a ClO2 Detector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Preparing for Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Setting the Zero (Fresh Air) Reading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Setting the Response Reading (Span) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Returning to Normal Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

65-2302/65-2303 Toxic Detector

Overview

This manual describes the 65-2302 and 65-2303 toxic detectors. This manual also describes
how to install, start up, maintain, and calibrate the toxic detector when used with a gas
monitoring controller. A parts list at the end of this manual lists replacement parts and
accessories for the toxic detector.

The 65-2303 toxic detector includes the 65-2302 toxic detector and a junction box.
The 65-2302 toxic detector does not include a junction box and is normally mounted in one

of a controller’s conduit hubs. I f you are using a 65-2302 toxic detector, disregard all
references to the junction box and junction box terminal strip.

The 65-2302 and 65-2303 detectors can be used for various target gases which are listed in
Table 1 below. For a particular target gas, the part number of the toxic detector will be of
the format 65-2302-XXX or 65-2303-XXX. For example, 65-2302-CLO2 is for chlorine
dioxide (ClO

Specifications

) detection.

2

WARNING: Do not use this product in a manner not specified in this instruction

manual.

Table 1 lists specifications for the various 65-2302/65-2303 toxic detectors.

Table 1: Specifications

Target Gas and Detection Range 65-2302-CL2/65-2303-CL2: Chlorine (Cl

65-2302-CL2-05/65-2303-CL2-05: Chlorine (Cl
65-2302-CL2-10/65-2303-CL2-10: Chlorine (Cl
65-2302-CLO2/65-2303-CLO2: Chlorine Dioxide (ClO

) 0 - 3.00 ppm

2

) 0 - 5.00 ppm

2

) 0 - 10.0 ppm

2

) 0 - 1.00 ppm

2

Sampling Method Diffusion
Accuracy ± 10% of reading or ± 5% of full scale (whichever is greater)
Response Time T90 in 60 seconds
Operating Temperature &

-4°F to 104°F (-20°C to 40°C)

Humidity

WARNING: When using the 65-2302/65-2303, you must follow the instructions and

warnings in this manual to assur e proper and safe operation of the
65-2302/65-2303 and to minimize the risk of personal injury. Be sure to
maintain and periodically calibrate the 65-2302/65-2303 as described in
this manual.

65-2302/65-2303 Toxic Detec tor • 1

Description

3/4 NP T Conduit H ub

Detector

Juncti on Box

Plug- in Sen sor
(different for each detector type)

Detector
Housing Cap

VersaporRMembrane

Detector Housing Body
(di fferent for each detector type)

Cap Gasket

This section describes the components of the 65-2302 and 65-2303. The 65-2303 includes
the 65-2302 toxic detector and a juncti on box. The 65-23 02 does not i nclude a juncti on box.
Figure 1 below shows the components of the 65-2303.

65-2302 Toxic Detector

The 65-2302 toxic detector consists of the detector housing body, detector housing cap, cap
gasket, and the plug-in sensor.

Figure 1: 65-2303 Component Location

Figure 2: 65-2302 Toxic Detector Component Location

2 • 65-2302/65-2303 Toxic Detector