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PolyGard
2 / µGard
2 Sensors for Refrigeration Applications
Sensor Cartridge for Freon Gases and Refrigerants
Series: SC2 and MC2 Series
User Manual
March 2021
Up-to-date data sheets and user manuals can be found in the download area of www.msr-24.com.
PolyGard
/ µGard
®
are registered trademarks of MSR
Made in Germany
GA_SC2_MC2_Freon_D_0321
Phone +49 8531 9004-0
Specification subject to change without notice
MSR-Electronic GmbH, Buergermeister-Schoenbauer-Str. 13, D 94060 Pocking
www.msr-electronic.de
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Table of Contents
Related Manuals for MSR ELECTRONIC SC2 Series
Summary of Contents for MSR ELECTRONIC SC2 Series
- Page 1 PolyGard 2 / µGard 2 Sensors for Refrigeration Applications Sensor Cartridge for Freon Gases and Refrigerants Series: SC2 and MC2 Series User Manual March 2021 Up-to-date data sheets and user manuals can be found in the download area of www.msr-24.com. ...
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Page 2: Table Of Contents
® ® User Manual - PolyGard 2 / µGard Sensor for Freon Gases and Refrigerants Page 2 Functional Description ........................3 General ................................. 3 Measuring Mode ..............................3 Special Mode ............................... 3 Sensor Element for Freon Gases ........................3 Installation ............................4 Mounting Instructions ............................ -
Page 3: Functional Description
The Sensor Cartridge SC2 is connected to the SB2 / MSB2 / MSC2 / WSB2. The µCartridge MC2 works according to the same principle as the SC2 series with the exception that the MC2 outputs an analog signal of 4– 20 mA (2–10 V as an option). -
Page 4: Installation
® ® User Manual - PolyGard 2 / µGard Sensor for Freon Gases and Refrigerants Page 4 2 Installation Electronics can be destroyed by electrostatic discharge (ESD). Therefore, the installation work should be done only by persons connected to ground, e. g. by standing on a conductive floor or by taking appropriate grounding measures (acc. -
Page 5: Commissioning
® ® User Manual - PolyGard 2 / µGard Sensor for Freon Gases and Refrigerants Page 5 4 Commissioning Only trained technicians should perform the following when commissioning: • Check for correct mounting location. • Check if connection is correct. •... -
Page 6: Calibration Work
® ® User Manual - PolyGard 2 / µGard Sensor for Freon Gases and Refrigerants Page 6 5.1 Calibration Work Prior to calibration you have to activate the mode “Special Mode” at the basic device, only then the calibration menu is enabled. During the special mode the basic device doesn’t issue alerts. •... -
Page 7: Exchange Of Sensor Cartridge
® ® User Manual - PolyGard 2 / µGard Sensor for Freon Gases and Refrigerants Page 7 5.2 Exchange of Sensor Cartridge Instead of the on-site calibration, the used SC can be replaced simply and conveniently by a calibrated one. The communication of the local bus (Sensor Cartridge <>... -
Page 8: Service And Calibration
® ® User Manual - PolyGard 2 / µGard Sensor for Freon Gases and Refrigerants Page 8 6.2 Service and Calibration When performing the maintenance, you must do the calibration and the functional test, see chapter 5, in addition to the inspection. A fixed calibration interval is stored for each sensor type. SC2 Sensor heads: If this interval is exceeded, a digital maintenance message is generated and forwarded. -
Page 9: Sensor Cartridge (Messages At The Tool / Controller)
® ® User Manual - PolyGard 2 / µGard Sensor for Freon Gases and Refrigerants Page 9 Sensor Cartridge (Messages at the Tool / Controller) Measuring signal <range> Internal error Replace SC. 5 V DC voltage < range > Temp. < range > WatchDog triggered SC Input 1 ... -
Page 10: Sensor Cartridge (Sc2)
® ® User Manual - PolyGard 2 / µGard Sensor for Freon Gases and Refrigerants Page 10 Sensor Cartridge (SC2) ELECTRICAL Power supply 5 V DC from Sensor Board (e.g. SB2/MSB2), reverse polarity protected Power consumption 160 mA, max. (0.8 VA) Serial interface local bus 1-wire / 19200 Baud PHYSICAL... -
Page 11: Figures
® ® User Manual - PolyGard 2 / µGard Sensor for Freon Gases and Refrigerants Page 11 9 Figures 94 mm 79 mm D = 4 mm Mounting Mounting Mounting Mounting Fig. 1 Fig. 3 PCB with Sensor Cartridge SC2 connection to PCB Fig. -
Page 12: Part Disposal
® ® User Manual - PolyGard 2 / µGard Sensor for Freon Gases and Refrigerants Page 12 10 Part Disposal Since August 2005 there are EC-wide directives defined in the EC Directive 2002/96/EC and in national codes concerning the waste electrical and electronic equipment and also regarding this device. For private households there are special collecting and recycling possibilities.
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