RKI Instruments 65-2322-04SS Operator's Manual

Part Number: 71-0481
Revision: P1
Released: 1/28/19

65-2322-04SS

Oxygen Transmitter

Operator’s Manual

RKI Instruments, Inc.

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.

65-2322-04SS Oxygen 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 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 L IEU OF ANY AND ALL OTHER
WARRANTIES AND REPRESENTATIONS, EXPRESSED OR IMPLIED,
AND ALL OTHER OBLIGATIONS OR LIABIL ITIES 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 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.

65-2322-04SS Oxygen T ransmitter

Table of Contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Oxygen Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Calibration Adapter/Splash Guard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Amplifier Junction Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Detector Junction Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Mounting the Oxygen Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Wiring the Detector to the Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Wiring the Amplifier to a Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Introducing Incoming Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Setting the Fresh Air Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Replacing Components of the Oxygen Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Calibration Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Determining Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Preparing for Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Setting the Fresh Air Reading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Setting the Zero Reading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Returning to Normal Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

65-2322-04SS Oxygen Transmitter

Overview

!

This manual describes the 65-2322-04SS explosion-proof oxygen (O2) transmitter. This
manual also describes how to install, start up, maintain, and calibrate the transmitter. A

parts list at the end of this manual lists replacement parts and accessories for the oxygen
transmitter.

Specifications

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

Table 1 lists specifications for the oxygen transmitter.

manual.

Table 1: Specifications

Target Gas Oxygen (O
Detection Range 0 to 100 PPM (parts per million)

Area Classification Explosion-proof for Class I, Groups B, C, and D
Temperature Code T6
Installation Category Installation Category 1. Signal level, special equipm ent or parts of

equipment, telecommunication, electron ic, etc., with smaller
transient overvoltages than Installati on Category (Overvoltage

Category) II (ref. I EC 664).
Input Voltage 11 VDC - 30 VDC
Sampling Method Diffusion
Signal Output 4 to 20 mA
Oxygen Detector Signal Output 0 mV at 0% oxygen nominal

18 mV at 25% oxygen nominal
Response Time 90% in 30 seconds
Accuracy ± 0.5% O

NOTE: The following symbol on the detector label is a caution to the user to refer to this

)

2

2

documentation for installation and operation instructions:

WARNING: When using the 65-2322-04SS, you must follow the instructions and

warnings in this manual to assur e proper and safe operation of the
65-2322-04SS and to minimi ze the risk of personal injury. Be sure to
maintain and periodically calibrate the 65-2322-04SS as described in this
manual.

65-2322-04SS Ox yge n T ransmit ter • 5

Description

TO XIC OX Y

S

SIG/PWR

Terminal Strip

Amplifier

Detector J-Box

Oxygen Detector

SPAN

ZERO

Amplifier J-Box

Calibration Adapter/Splash Guard

This section describes the components of the oxygen transmitter. The transmitter is a 4 - 20
mA type detector head. It consists of the oxygen detector, calibration adapter/splash
guard, amplifier, the amplifier junction box, and the detector junction box. The two­junction-box configuration is intended for situations where the detector needs to be
installed at an inaccessible location. The detector junction box can be installed at the
inaccessible location and the amplifier junction box can be installed in a more readily
accessible area.

6 • 65-2322-04SS Oxygen Transmitter

Figure 1: Component Location

Oxygen Detector

Cap Gasket

Fl ame Arre stor
Guard

Det ect or Hou si ng Ca p

Plug-in Oxyge n Sensor

Detector HousingBody

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

Figure 2: Oxygen Detector Compon ent 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 oxygen detector into the 3/4 NPT
hub on the bottom of the junction box. Two wires ext end fro m th e top of the detector
housing body. Use these wires to connect the oxygen detector to the amplifier. One of the
wires is white and one of the wires is green.

The housing includes two sockets installed on a circuit board. These sockets accept the
plug-in sensor’s two pins to provide electrical connection for the sensor. The circuit board
with the sockets conditions the sensor ’s signal before the signal reaches the amplifier.

Housing Cap & Cap Gasket

The housing cap screws onto the detector housing. It retains th e plug-in sensor and
protects it from damage. A foam gasket is installed inside the housing cap that seals
against the sensor fa ce. The ho using ca p also incl udes a flame arrestor which contai ns any
sparks that may occur within the detector and a flame arrestor guard which protects the
flame arrestor from damage. Unscrew the detector cap to access the plug-in sensor for
maintenance or replacement. A cap gasket seals the interface between the housing and
cap.

Plug-In Oxygen Sensor

The plug-in sensor is secured in th e detector assembly by the housin g cap. Through a
series of chemical and electrical reactions, the sensor produces a milli volt output that
corresponds to the detection range of the transmitter.

65-2322-04SS Ox yge n T ransmit ter • 7