Munters CO2 Sensor User manual

Installation Manual
CO2 Sensor
Ag/MIS/UmEn-2615-07/18 Rev 1.8
P/N: 116227
CO2
Sensor

© Munters AB, 2020 2
CO2 Sensor
Installation Manual
Rev 1.8, 8/2023
Software Version: N/A
This manual for use and maintenance is an integral part of the apparatus together with
the attached technical documentation.
This document is destined for the user of the apparatus: it may not be reproduced in
whole or in part, committed to computer memory as a file or delivered to third parties
without the prior authorization of the assembler of the system.
Munters reserves the right to effect modifications to the apparatus in accordance with
technical and legal developments.

© Munters AB, 2020 3
Index
Chapter page
1INTRODUCTION .................................................................................................................... 4
1.1 Disclaimer ............................................................................................................ 4
1.2 Introduction......................................................................................................... 4
1.3 Notes .................................................................................................................... 4
2INTRODUCTION .................................................................................................................... 5
2.1 Features ................................................................................................................5
2.2 Operating Mode .................................................................................................. 6
3INSTALLATION.......................................................................................................................7
3.1 Installing the Sensor............................................................................................7
3.2 Controller Connection ........................................................................................ 9
3.2.1 Platinum Wiring ................................................................................................ 10
3.2.2 Platinum Pro Wiring ......................................................................................... 11
3.2.3 AC-2000 Plus Wiring ..................................................................................... 12
3.2.4 TRIO Wiring......................................................................................................... 13
3.3 Calibrating the Device........................................................................................ 13
3.4 Disconnecting the Sensor.................................................................................. 15
4MAINTENANCE AND CARE...............................................................................................16
5SPECIFICATIONS .................................................................................................................16
6TROUBLESHOOTING .......................................................................................................... 17
7WARRANTY ..........................................................................................................................18

© Munters AB, 2020 4
1Introduction
1.1 Disclaimer
Munters reserves the right to make alterations to specifications, quantities, dimensions
etc. for production or other reasons, subsequent to publication. The information
contained herein has been prepared by qualified experts within Munters. While we
believe the information is accurate and complete, we make no warranty or
representation for any particular purposes. The information is offered in good faith and
with the understanding that any use of the units or accessories in breach of the
directions and warnings in this document is at the sole discretion and risk of the user.
1.2 Introduction
Congratulations on your excellent choice of purchasing a CO2 Sensor!
In order to realize the full benefit from this product it is important that it is installed,
commissioned and operated correctly. Before installation or using the device, this
manual should be studied carefully. It is also recommended that it is kept safely for
future reference. The manual is intended as a reference for installation, commissioning
and day-to-day operation of the Munters equipment.
1.3 Notes
Date of release: May 2021
Munters cannot guarantee to inform users about the changes or to distribute new
manuals to them.
All rights reserved. No part of this manual may be reproduced in any manner
whatsoever without the expressed written permission of Munters. The contents of this
manual are subject to change without notice.

© Munters AB, 2020 5
2Introduction
The CO2 Sensor measures CO2levels in an agricultural environment. Working in
conjunction with a controller, the CO2 Sensor sends a signal when the measured CO2
levels fall outside the user-defined specifications. This signal activates the controller’s
ventilation. Refer to Figure 1.
Figure 1: CO2 Sensor
NOTE The unit comes supplied with a 12 VDC supply.
2.1 Features
•Self-contained environment and impact-resistant sealed box
•Quick open clasps
•Easy installation
•Simple to connect and configure
•Continuous uninterrupted CO2 sensing
•Diagnostic LEDs
•Door-mounted sensor

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2.2 Operating Mode
The CO2 Sensor operates in a Current Loop mode (4 - 20 milliamps). In this mode, the
CO2Sensor provides a signal proportional to CO2levels.
•Verify that J2 is not shorted (refer to Figure 2).
Figure 2: J2 Jumper

© Munters AB, 2020 7
3Installation
•Installing the Sensor
•Controller Connection
•Calibrating the Device
•Disconnecting the Sensor
3.1 Installing the Sensor
NOTE The user needs to supply a 4-wired shielded cable that runs from the controller
to the CO2 Sensor Connector. This cable is used to:
•Connect the sensor to a power source
•Connect the sensor to the controller (Controller Connection, page 9)
•Detach the unit from the house during cleaning and maintenance procedures
(Disconnecting the Sensor, page 15)
Figure 3: CO2 Sensor Attached to Connector
To install the unit:
1. Mount the sensor in place.
2. On the female plug, remove the retaining screw from the protective cover
(Figure 4).
Figure 4: Protective Cover
3. Pull out the connector from the protective cover (Figure 5).

© Munters AB, 2020 8
Figure 5: Remove the Connector
4. Place the cable through the protective cover (Figure 6).
Figure 6: Threading the Cable
5. On the top of the connector are numbers (Figure 7. Each wire must be attached
to the corresponding port (Table 1). Connect the four wires to the connector
Figure 8.
Figure 7: Connector Numbers
Table 1: Connecter Port Functions
Port Number Function Wire Color (example)
1 +12 V Red
2 -12 V (COM) Black
3 SIG Out White
4 SIG COM Green
NOTE The cable wiring used may have different colors.

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Figure 8: Wired Connector (example cable; actual colors may differ)
6. Place the wired connector back into the protective cover and place the retaining
screw in place (Figure 9).
Figure 9: Wired Unit in Protective Cover
3.2 Controller Connection
•Platinum Wiring
•Platinum Pro Wiring
•AC-2000 Plus Wiring
•TRIO Wiring
Figure 10: CO2 Sensor Wiring Schematic (colors may vary)

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3.2.1 PLATINUM WIRING
1. Attach the other end of the sensor cable to the power supply and Platinum
Analog Input Card as indicated in Figure 11.
2. Connect:
oCO2 COM to COM
oCO2 output signal to the T5 or T6 terminal
3. Place a jumper on the T5 or T6 pins (sets the 4 – 20 mA mode).
Figure 11: Platinum Wiring
Number Function
1 Red wire: +12V
2 Black wire: -12V (Sig COM)
3 T5 or T6 port
4 COM port
5 Shield wire
Power Supply
6 Brown wire: phase
7 Blue wire: neutral
CAUTION Connect the shield to the safety ground!