MSR Intec Controls PolyGard CO LC-1112 V3 User manual

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
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Specication subject to change without notice.
Printed in USA 140916
September 16, 2014 – Revision
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard CO LC-1112 V3
Electrochemical analog carbon monoxide transmitters
serial no. EC-S 002
User Manual
August 29, 2006
Specifications subject to change without notice. | USA 140916 | Page 1of 13
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LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
January 04, 2016 – Revision
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
February 11, 2020 – Revision

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Fax [phone] & (888) FX INTEC
www.inteccontrols.com
Specication subject to change without notice.
Printed in USA 140916
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard®CO Transmitter
User Manual - LC-1112 V3 Page 02
Electrochemical analog carbon monoxide transmitters
1 General Overview...................................................................................................................... 3
2 Description.................................................................................................................................... 3
3 Installation..................................................................................................................................... 4
3.1 Assembly information ................................................................................................................ 4
3.2 Enclosure................................................................................................................................... 4
4 Electrical Connection ............................................................................................................. 5
4.1 Instructions ................................................................................................................................ 5
4.2 Wiring connection ...................................................................................................................... 5
5Start-up operation..................................................................................................................... 6
5.1 Calibration ................................................................................................................................. 6
5.2 Control span voltage calculation ............................................................................................... 7
6Inspection and Service .......................................................................................................... 8
6.1 Inspection .................................................................................................................................. 8
6.2 Calibration ................................................................................................................................. 8
6.3 Replacing of the sensor element............................................................................................... 8
7Troubleshooting ........................................................................................................................ 8
7.1 Diagnostics of the transmitter.................................................................................................... 8
8 Cross-sensitivity Data ............................................................................................................ 9
9Specifications............................................................................................................................ 10
10 Wiring Configuration and Enclosure Dimensions ............................................ 11
11 Notes and General Information.................................................................................... 13
11.1 Intended product application ................................................................................................... 13
11.2 Installers` responsibilities ........................................................................................................ 13
11.3 Maintenance ............................................................................................................................ 13
11.4 Limited warranty ...................................................................................................................... 13
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LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
Specifications subject to change without notice. | USA 160104 | Page 2of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112 V3 – UserManual
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | UMLC1112I01 | USA 200211 | Page 2of 13
LC-1112 V3 – UserManual

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Fax [phone] & (888) FX INTEC
www.inteccontrols.com
Specication subject to change without notice.
Printed in USA 140916
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard®CO Transmitter
User Manual - LC-1112 V3 Page 03
Electrochemical analog carbon monoxide transmitters
1 General Overview
The PolyGardCO analog gas transmitter is used for detection of carbon monoxide in the ambient air to warn of the
presence of Carbon Monoxide gas.
2 Description
The sensor portion of the PolyGard LC-1112 analog gas transmitter is a micro-fuel cell, which is completely sealed. The
measurement is a gas-in-liquid chemical reaction rather than a surface area measurement. With no surface area to coat,
this sensor retains its sensitivity to carbon monoxide even after prolonged exposure to clean air.
The cell consists of a diffusion barrier, O-ring seal, electrolyte reservoir and two electrodes. The target gas, carbon
monoxide, enters the cell through a diffusion barrier. The chemical process of the measurement is one of oxidation where
one molecule of the target gas is exchanged for one molecule of oxygen. The reaction drives the oxygen molecule to the
counter electrode, generating a DC microampere signal between the sensing and counter electrodes. This signal is linear
to the volume concentration of the sensed gas rather than the partial pressure.
The integrated two-wire transformer converts this DC microampere signal to a standard 4-20 mA signal.
Most sensors produce a small amount of baseline current in clean air. This is adjusted out with the zero potentiometer on
the transmitter.
This oxidation at the electrodes causes wear of the sensor. Typical life for this sensor is approximately five years in
normal operation. This will vary somewhat from sensor to sensor, with some working lifetimes less than five years and
some greater than 5 years. This wear also changes the characteristics of the sensor, requiring periodic re-calibration. It is
recommended that the sensor accuracy be verified every six months and recalibrated as necessary.
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LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
Specifications subject to change without notice. | USA 160104 | Page 3of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112 V3 – UserManual
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | UMLC1112I01 | USA 200211 | Page 3of 13
LC-1112 V3 – UserManual

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Fax [phone] & (888) FX INTEC
www.inteccontrols.com
Specication subject to change without notice.
Printed in USA 140916
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard®CO Transmitter
User Manual - LC-1112 V3 Page 04
3 Installation
Note:
•Avoid any force (e.g. by thumb) during operation or installation on the sensor element. This could destroy
the element.
•Electronics can be destroyed through static electricity. Therefore, do not work on the equipment without a
wrist strap connected to earth ground or standing on conductive floor.
3.1 Assembly information
•The specific weight of carbon monoxide is almost the same as that of air (factor 0.967).
•Location of the sensor must conform to the layout of the area being monitored.
•Disregard the ventilation ratio! Do not mount sensor in the center of the airflow. In larger rooms, it might be
necessary to install two or more transmitters where there is not adequate air movement. Do not mount in
corners or directly in front of air inlets (e.g. doors, windows, open ramps, dampers, etc.). In areas with un-
defined air movement, it might be necessary to distribute several transmitters in a vertical and horizontal
direction over the whole area to be monitored.
•Avoid locations where water, oil etc. may influence proper operation and where mechanical damage might be
possible.
•Mounting height is five feet above floor (max. 6 feet).
•Provide adequate space around sensor for maintenance and calibration work.
3.2 Enclosure
− Un-screw cover of enclosure.
− Carefully unplug the basic PCB mounted on fixed terminal blocks.
− Screw the base vertically on wall or on a single gang electrical box. (see Fig. 3, page 12).
− Plug in the basic PCB and replace the cover after wiring connection is completed (see 4.2 wiring connection).
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12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
Specifications subject to change without notice. | USA 160104 | Page 4of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112 V3 – UserManual
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | UMLC1112I01 | USA 200211 | Page 4of 13
LC-1112 V3 – UserManual

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Fax [phone] & (888) FX INTEC
www.inteccontrols.com
Specication subject to change without notice.
Printed in USA 140916
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard®CO Transmitter
User Manual - LC-1112 V3 Page 05
4 Electrical Connection
4.1 Instructions
Note:
Electrostatic discharge (ESD) may damage electronic components. During wiring, open the cover only when
completely grounded via grounding strap or standing on conductive floor.
• Connections should be made without any power applied to conductors.
• Installation of the electrical wiring should be according to the connection diagram and only performed by a
trained specialist.
• Avoid any influence from external interference by using a shielded cable.
• Recommended cable: 18 AWG shielded, maximum resistance 20.8 Ω/1000 ft (73 Ω/1000 m)
• Cable insulation:
Since the PCB mounts on top of the wiring terminations, it is important to ensure that the wire shields
or any bare wires do not short to the PCB.
Terminal strip X4
Connector 1 Power supply (+) 24 VDC, 17 – 28 VDC
Connector 4 Signal 4 – 20 mA
Connector 2 0 VDC (DC common, not needed)
4.2 Wiring connection
• Unscrew cover of enclosure.
• Unplug basic PCB from terminal blocks.
For single gang electrical box mounting:
• Pull through cable via hole in base; connect cable leads on terminal block X4.
For surface mounting (cable entry always from the top
• Remove cover to access cable.
• Connect cable leads on terminal block X4.
• Plug the PCB on fixed terminal blocks on base.
• Screw cover on base.
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LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
Specifications subject to change without notice. | USA 160104 | Page 5of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112 V3 – UserManual
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | UMLC1112I01 | USA 200211 | Page 5of 13
LC-1112 V3 – UserManual

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Fax [phone] & (888) FX INTEC
www.inteccontrols.com
Specication subject to change without notice.
Printed in USA 140916
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard®CO Transmitter
User Manual - LC-1112 V3 Page 06
5 Start-up operation
Only trained technicians should perform the following:
•Check mounting location.
•Check power voltage.
•Check PCB for proper mounting at X4 and X5.
•Verify transmitter operation (sensor/transmitter was factory calibrated).
Note:
If calibration is necessary, the sensor element must be powered and be fully stabilized for at least 1 hour.
Required instruments to calibrate the transmitter:
•Test gas bottle with synthetic air.
•Test gas bottle with 200 ppm CO.
•Gas pressure regulator with flow meter to control the gas flow to 150 ml/min.
•Calibration set CONKIT-E/CH-LC. See fig. 4.
•Digital voltmeter with range 0 – 2 VDC, accuracy 1% and a small screwdriver.
Note:
Please observe proper handling procedures for test gas bottles!
5.1 Calibration
Zero adjustment
Zero-point calibration (4mA):
(After sensor warm-up)
•Connect digital voltmeter to test pins – and + (with a range selected that will display 2 VDC max.).
•Connect the calibration adapter to sensor element.
•Apply sensor element zero calibration gas, (150 ml/min; 14.5 psi ± 10%), or other clean air source.
•Wait two minutes until the signal is stable, adjust signal with zero potentiometer ”Zero” until the signal is 40
mV ± 3 mV and stable.
•Remove calibration adapter carefully by turning lightly.
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LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
Specifications subject to change without notice. | USA 160104 | Page 6of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112 V3 – UserManual
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | UMLC1112I01 | USA 200211 | Page 6of 13
LC-1112 V3 – UserManual

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Fax [phone] & (888) FX INTEC
www.inteccontrols.com
Specication subject to change without notice.
Printed in USA 140916
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard®CO Transmitter
User Manual - LC-1112 V3 Page 07
Span adjustment
Notes:
CO calibration gas is toxic, never inhale the gas!
Symptoms: Dizziness, headache and nausea.
Procedure if exposed: Bring into fresh air at once, consult doctor.
•Connect calibration adapter to the sensor element.
•Apply sensor element span calibration gas (200 ppm CO), (150 ml/min; 14.5 psi ± 10%).
•Wait two minutes until the signal is stable, adjust signal with span potentiometer ”Gain” until the signal
reads the appropriate mVDC (± 3 mV, see calculation for control voltage 5.2) and is stable.
•Remove calibration adapter with a careful light turn. Inspect the seating of the sensor element!
5.2 Control span voltage calculation
160 (mV) x test gas concentration (ppm) + 40 (mV)
Measuring range CO (ppm)
Example
Measuring range CO concentration 250 ppm
Test gas concentration 200 ppm
Control voltage 168 mV
160 (mV) x 200 (ppm) + 40 (mV) = 168 mV
250 (ppm)
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LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
Specifications subject to change without notice. | USA 160104 | Page 7of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112 V3 – UserManual
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | UMLC1112I01 | USA 200211 | Page 7of 13
LC-1112 V3 – UserManual

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Fax [phone] & (888) FX INTEC
www.inteccontrols.com
Specication subject to change without notice.
Printed in USA 140916
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard®CO Transmitter
User Manual - LC-1112 V3 Page 08
6 Inspection and Service
6.1 Inspection
Inspection and service of the transmitters should be done by a trained technician and executed on a periodic
interval. It is recommended that the sensor operation be verified every 12 months.
6.2 Calibration
(See part 5.1 and 5.2)
•Service at periodic intervals is to be decided by the person responsible for the gas detection system.
•If span calibration voltage of 168 mV (see note below) is no longer attainable when applying 200 ppm
Carbon Monoxide in air, then the sensor element has to be replaced. After the sensor element has been
replaced a calibration is required.
Note:
If using a different level of span test gas ppm, or different sensor range, then the mV needs to be calculated.
6.3 Replacing of the sensor element
Static electricity (see section 4.1).
Sensor should always be installed without power applied:
•Unplug basic PCB carefully from the terminal blocks on the base.
•Unplug old sensor element out from the PCB.
•Take new sensor element out of original packing
•Plug sensor element in the PCB.
•Plug the PCB in terminal block X4, X5 carefully.
•Calibrate after sensor warm-up (see section 5.1).
7 Troubleshooting
7.1 Diagnostics of the transmitter
Trouble Reason Solution
Output signal 0 mA and
control voltage 0 V
Power not applied Measure power voltage terminal block
X4 terminal 1 (+) and 4 for 17 – 28 VDC
Basic PCB X4 and X5
not plugged in correctly
Plug in the basic PCB into X4 and
X5 correctly
Output signal less then
4 mA
Sensor element not calibrated Calibrate sensor element output
Control current signal not
correct
Sensor span not attainable Replace sensor element
Specifications subject to change without notice. | USA 140916 | Page 8of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
Specifications subject to change without notice. | USA 160104 | Page 8of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112 V3 – UserManual
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | UMLC1112I01 | USA 200211 | Page 8of 13
LC-1112 V3 – UserManual

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Fax [phone] & (888) FX INTEC
www.inteccontrols.com
Specication subject to change without notice.
Printed in USA 140916
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard®CO Transmitter
User Manual - LC-1112 V3 Page 09
8 Cross-sensitivity Data
This table shows the typical response to be expected from the sensor when exposed to the following gases.
Gas Chemical mark Gas concentration Tolerance ppm CO
Acetone (CH3)CO(CH3) 1000 ppm 0 ppm
Acetylene C2H2 40 ppm 80 ppm
Ammonia NH3 100 ppm 0 ppm
Carbone dioxide CO2 5000 ppm 0 ppm
Chlorine CL2 2 ppm 0 ppm
Ethanol C2H5OH 2000 ppm 5 ppm
Hydrogen H2 100 ppm 20 ppm
Hydrogen sulphide H2S 25 ppm 0 ppm
Iso propanol C2H7OH 200 ppm 0 ppm
Nitric oxide NO 50 ppm 8 ppm
Nitrogen dioxide NO2 50 ppm 1 ppm
Sulphur dioxide SO2 50 ppm 0 ppm
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LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
Specifications subject to change without notice. | USA 160104 | Page 9of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112 V3 – UserManual
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | UMLC1112I01 | USA 200211 | Page 9of 13
LC-1112 V3 – UserManual

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Fax [phone] & (888) FX INTEC
www.inteccontrols.com
Specication subject to change without notice.
Printed in USA 140916
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard®CO Transmitter
User Manual - LC-1112 V3 Page 10
9 Specifications
Electrical
Power supply: 17-28 VDC (polarity protected)
Power consumption: 22 mA, (0.6 VA), max.
RFI/EMI protection 5.0 W @1 ft. (0.31 m) radiated
Sensor Performance
Gas detected Carbon monoxide (CO)
Sensor element Electrochemical, diffusion
Range 0 – 250 ppm factory set
0 - 200 to 0 – 300 ppm, adjustable via calibration
Stability & resolution ± 3.0 ppm of reading
Repeatability ± 3.0 % of reading
Long term output drift  0.4% signal loss/month
Response time t90  50 sec.
Sensor life expectancy  3-5 year, normal operating environment
Sensor coverage 5,000 sq.ft., (465 m2), to10,000 sq.ft. (930 m2) under “ideal conditions”
Mounting height 5 to 6 ft. (1.5 to 1.8 m) above floor
Type of Control
Analog output signal Proportional, 4 – 20 mA, load  450 
Operating Environment
Working temperature 14 °F to 122 °F (-10 °C to + 50 °C)
Intermitted temperature -4 °F to 122 °F (-20 °C to 50 °C)
Storage temperature 41 °F to 86 °F (5 °C to + 30 °C)
Working humidity 15 to 95% RH non-condensing
Intermitted humidity 0 to 99% RH non-condensing
Pressure range Atmospheric ±10%
Physical characteristics
Enclosure material High impact, GW-Plast, IEC 60695-2-12, GWFI-650 °C, fire-retardant
Enclosure color Light gray
Protection NEMA12 (IP 55)
Installation Wall (surface) mounted or single gang electrical box
Dimensions (HxWxD) 5.0 x 3.4 x 2.2 in. (127 x 87 x 56 mm)
Cable entry 1 hole for ½ in. conduit for wall (surface) mounting, and 1 hole
on back side of base plate for single gang electrical box mounting
Wire connection Terminal blocks, screw type for lead wire
Wire size Min. 24 AWG (0.25 mm2), max. 14 AWG (2.5 mm2)
Wire distance Max. loop resist. 500  (= wire resist. + controller input resist.)
Weight 0.6 Ibs. ( 0.25 kg )
Approvals/Listings
- Unit rating NRTL Performance Tested & Certified,
Conforms to STD ANSI/UL 2075
City of Los Angeles
CE
VDI 2053, air treatment systems for garages and tunnels
EMV-Compliance 89/336/EWG,
low voltage directives 73/23/EWG
- Enclosure UL Listed, E208470
CSA Certified, E208470
Specifications subject to change without notice. | USA 140916 | Page 10 of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
Specifications subject to change without notice. | USA 160104 | Page 10 of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112 V3 – UserManual
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | UMLC1112I01 | USA 200211 | Page 10 of 13
LC-1112 V3 – UserManual

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Fax [phone] & (888) FX INTEC
www.inteccontrols.com
Specication subject to change without notice.
Printed in USA 140916
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard®CO Transmitter
User Manual - LC-1112 V3 Page 11
10 Wiring Configuration and Enclosure Dimensions
Wiring Configuration
Fig. 1
Printed circuit board
Fig. 2
Power supply
17 - 28V/DC
Controller
Transmitter
LC-1112
+-
0V/DC
4-20mA
X4
X57
6
5
4
3
20 VDC
24 VDC_Out
Output (V/mA)
4-20 mA_Inp
BUS A
BUS B
1
2
3
4
5
1
7
1234
123456
1
2
3
4
5
6
7
1
2
3
4
5
+
-
ZeroGainTest
EC-S-002
240703
COM2
NO2
COM1
X5
NC1
NO1
X6 P2 P1
Sensor
24 VDC_Inp
>24VDC
GND
<24VDC
OUT
INP
Bus_A
Bus_B
Calibration adapter
Fig. 4
Type: CONKIT-E/CH-LC
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12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
Specifications subject to change without notice. | USA 160104 | Page 11 of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112 V3 – UserManual
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | UMLC1112I01 | USA 200211 | Page 11 of 13
LC-1112 V3 – UserManual

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Fax [phone] & (888) FX INTEC
www.inteccontrols.com
Specication subject to change without notice.
Printed in USA 140916
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard®CO Transmitter
User Manual - LC-1112 V3 Page 12
Dimensions
Fig. 3
d = 0.16 in.
(4 mm)
d = 0.16 in.
(4 mm)
0.87 in.
(22 mm)
3.3 in. (84 mm)
3.19 in. (81 mm)
3.35 in. (85 mm)
d = 0.88 in. (22,5 mm)
54321
1234567
4.9 in. (125 mm)
2.2 in. (55 mm)
Specifications subject to change without notice. | USA 140916 | Page 12 of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
Specifications subject to change without notice. | USA 160104 | Page 12 of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112 V3 – UserManual
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | UMLC1112I01 | USA 200211 | Page 12 of 13
LC-1112 V3 – UserManual

Customer Services [phone] & (888) GO INTEC
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Fax [phone] & (888) FX INTEC
www.inteccontrols.com
Specication subject to change without notice.
Printed in USA 140916
Polygard® is a registered trademark of MSR UMLC1112I01
PolyGard®CO Transmitter
User Manual - LC-1112 V3 Page 13
11 Notes and General Information
It is important to read this user manual thoroughly and clearly understand the information and instructions. The
PolyGard® transmitters must be used within product specification capabilities. The appropriate operating and
maintenance instructions and recommendations must be followed.
Due to ongoing product development, MSR reserves the right to change specifications without notice. The
information contained herein is based upon data considered to be accurate. However, no guarantee is expressed
or implied regarding the accuracy of this data.
11.1 Intended product application
The PolyGard® CO LC-1112 transmitters are designed and manufactured for control applications for energy
savings and OSHA air quality compliance in commercial buildings and manufacturing plants (i.e.,detection and
automatic exhaust fan control for automotive maintenance facilities, enclosed parking garages, engine repair
shops, warehouses with forklifts, fire stations, tunnels, etc.).
11.2 Installers` responsibilities
It is the installer`s responsibility to ensure that all PolyGard® transmitters are installed in compliance with all
national and local codes and OSHA requirements. Installation should be implemented only by individuals
familiar with proper installation techniques and with codes, standards and proper safety procedures for control
installations and the latest edition of the National Electrical Code (ANSI/NFPA70). It is also essential to strictly
follow all instructions as provided in the user manual.
11.3 Maintenance
It is recommended that the PolyGard® transmitter performance check is done on a routine schedule. Any
performance deviations may be serviced based on needed requirements. Re-calibration and part replacement
may be implemented in the field by a qualified individual and with the appropriate tools. Alternatively, the easily
removable plug-in transmitter card with the sensor may be returned for service to INTEC Controls.
11.4 Limited warranty
MSR-Electronic-GmbH and INTEC Controls warrants the PolyGard®transmitter for a period of two years,
12 months normal exposure for the sensor, from the date of shipment against defects in material or workmanship.
Should any evidence of defects in material or workmanship occur during the warranty period, INTEC Controls will
repair or replace the product at their own discretion, without charge.
This warranty does not apply to units that have been altered, had attempted repair, or been subject to abuse,
accidental or otherwise. The warranty also does not apply to units in which the sensor element has been
overexposed or gas poisoned. The above warranty is in lieu of all other express warranties, obligations or liabilities.
This warranty applies only to the PolyGard®transmitter. MSR-Electronic-GmbH and/or INTEC Controls shall
not be liable for any incidental or consequential damages arising out of or related to the use of the PolyGard®
transmitter.
If the PolyGard®transmitter needs to be returned to INTEC Controls for service, an RMA number must be obtained
prior to sending.
Specifications subject to change without notice. | USA 140916 | Page 13 of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112_V3 – UserManual
Polygard® is a registered trademark of MSR | UMLC1112I01
Specifications subject to change without notice. | USA 160104 | Page 13 of 13
12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | relevantsolutions.com/inteccontrols
LC-1112 V3 – UserManual
PolyGard®is a registered trademark of MSR-Electronic GmbH | UMLC1112I01
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | UMLC1112I01 | USA 200211 | Page 13 of 13
LC-1112 V3 – UserManual