RKI Instruments 65-2340RKSS - User Manual

RKI Instruments 65-2340RKSS

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RKI Instruments, Inc.

www.rkiinstruments.com

65-2340RKSS

Toxic Gas Transmitter

Operator’s Manual

Part Number: 71-0302RK

Revision: 0

Released: 5/16/17

Questions and Answers

M
Melissa RobertsAug 1, 2025
What to do if RKI Instruments 65-2340RKSS Transmitter shows a fail condition?
- S
  Sandra BrennanAug 1, 2025
  If your RKI Instruments Transmitter shows a fail condition, check the following: ensure the transmitter wiring is correctly connected and secure. Also, confirm that the plug-in sensor is properly installed in the detector housing. Perform a zero (fresh air) adjustment; a full calibration is also recommended. If the fail condition persists, the plug-in sensor may need replacement.
K
Kimberly ParkerAug 15, 2025
Why is my RKI Instruments 65-2340RKSS slow to respond or difficult to calibrate?
- L
  Lisa EvansAug 16, 2025
  A slow response or difficulty in calibrating your RKI Instruments Transmitter can occur for several reasons. First, verify that the calibration cylinder contains an adequate supply of a fresh test sample. Next, confirm that you are using the correct calibration cup and regulator for your detector type. Check the plug-in sensor face and remove any particulate contamination, if present. Finally, verify that the calibration gas concentration is appropriate for the transmitter; the concentration should be in the detection range, preferably about half of the detection range. If the issue continues, the plug-in sensor may need replacing.

RKI Instruments 65-2340RKSS Specifications

General

Sensor Type	Electrochemical
Target Gas	Hydrogen Sulfide (H2S)
Detection Range	0-100 ppm
Measurement Range	0-100 ppm
Output Signal	4-20 mA
Power Supply	24 VDC
Enclosure	Stainless Steel
Enclosure Rating	NEMA 4X
Certifications	ATEX, IECEx
Humidity Range	15-95% RH (non-condensing)

Summary

Overview

Specifications

Description

Toxic Detector

Describes the toxic detector's components: housing, cap, gasket, and plug-in sensor.

Amplifier

Explains the amplifier's function in converting detector signal to 4-20 mA.

Junction Box

Details the junction box for wiring connections and environmental protection.

Installation

Mounting the Toxic Gas Transmitter

Procedures for selecting a site and physically installing the transmitter.

Wiring the Toxic Gas Transmitter to a Controller

Step-by-step guide for connecting the transmitter to a controller.

Startup

Introducing Incoming Power

Steps to safely power up the transmitter and controller system.

Setting the Zero Signal

Procedure to adjust the transmitter's zero output in a fresh air environment.

Maintenance

Preventive Maintenance

Outlines daily, monthly, and quarterly maintenance tasks for optimal performance.

Troubleshooting

Guide to identifying and resolving common symptoms, causes, and solutions.

Replacing Components of the Toxic Gas Transmitter

Procedures for replacing the plug-in sensor, detector assembly, or amplifier.

Calibration Frequency

Calibration

Preparing for Calibration

Steps to prepare the controller and transmitter for the calibration process.

Setting the Zero (Fresh Air) Reading

Procedure to set the baseline reading using zero air.

Setting the Span (Response) Reading

Procedure to set the transmitter's response to a known calibration gas.

Returning to Normal Operation

Steps to safely return the transmitter to normal monitoring mode.

Parts List

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