Siemens Water Technologies Acutec 35

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ACUTEC™ 35

GAS DETECTION

SYSTEM

BOOK NO. WT.050.130.000.UA.IM.1108

Table of Contents

Questions and Answers:

E
eric29Aug 7, 2025
What to do if Siemens Gas Detectors receiver module does not respond to test gas?
- B
  Benjamin ClaytonAug 7, 2025
  If the Siemens Gas Detectors receiver module powers up correctly but doesn't respond when test gas is applied, first disconnect the transmitter connections at the two “TR” terminals of the receiver and check the voltage with a voltmeter. It should be approximately 12 Vdc. Next, connect a milliamp meter between the two “TR” terminals of the receiver; the current should be 15 to 25 mA.
T
Tara MullinsAug 25, 2025
How to troubleshoot Siemens Water Technologies Acutec 35 Gas Detectors when receiver LEDs do not light?
- J
  Jessica CampbellAug 25, 2025
  If the receiver LEDs and indicators of your Siemens Gas Detectors do not light up when power is applied, start by checking the fuse and replace it if blown. If the fuse is intact, inspect the wiring from the Power Supply Module to the Receiver Module, ensuring correct polarity. Then, use a voltmeter to check the power supply at the “+12” and “C” terminals on the Receiver; if the reading is between 13.6 to 13.9 Vdc, the Receiver should be replaced. Also, measure the AC input voltage at the Power Supply Module. If it's outside the rated range (see Section 1.1 - Technical Data), check the AC supply. Finally, if the voltage measured in step 3 exceeds 13.9 V, connect another Receiver Module or a resistive load of approximately 100 ohm and 2 watts to the Power Supply output terminals.

Siemens Water Technologies Acutec 35 Specifications

General

Technology	Electrochemical
Target Gas	Chlorine Dioxide (ClO2)
Response Time	< 60 seconds
Operating Temperature	-20°C to 50°C
Operating Humidity	15% to 90% RH (non-condensing)
Certifications	CE

Summary

Warranty Information

Important Safety Precautions

Technical Data

Gas Specifications and Ranges

Details gas types, operating ranges, setpoints, enclosure ratings, and operating conditions.

Installation

General Installation and Mounting

Module Mounting and Electrical Wiring

Operation

Power Supply and Receiver Operation

Explains power supply function and features of receiver modules.

Receiver Configuration and Startup

Receiver Module Functions

SensorTransmitter and Battery Operation

Explains sensor/transmitter operation, installation, location, and battery back-up function.

Service and Maintenance

Unit Removal and Sensor Service

Sensor Response, Replacement, and Calibration

Routine Service and Troubleshooting

Outlines monthly/quarterly checks and common troubleshooting steps for system issues.

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