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Refrigerant leak monitor (gas sensor, 16 zones) · BACnet points list

Contemporary Controls Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX BACnet points list

Updated 12 November 2026

Short answer

Gateway profile for the Bacharach HGM-MZ: 151 objects (134 AI, 17 AO), all polled. Inputs give the fault code, ppm and alarm level for each of 16 zones, monitor mode and state, active zone, alarm counts, highest concentration and zone, bench sensor readings and refrigerant type per zone; outputs acknowledge alarms per zone or all.

This page lists 151 BACnet objects for the Contemporary Controls Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX — 17 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Contemporary Controls’s own free documentation, linked below.

Manufacturer
Contemporary Controls
Model
Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX
Equipment
Refrigerant leak monitor (gas sensor, 16 zones)
Equipment type
Thermostats, sensors & meters
BACnet objects
151 (17 writable)
Transport
BACnet IP
Firmware
Not stated
Also known as
HGM-MZ, Bacharach HGM MZ, Multi-Zone refrigerant monitor, 3015-5074
Source document
BASgatewayLX Modbus device profile Bacharach_Multizone_Gas_Monitor_a · Bacharach_Multizone_Gas_Monitor_a_LX.csv
Download CSV 151 rows Download EDE B.I.G.-EU JSON Manufacturer PDF ↗ Compare with your scan Download Easy BACnet Mobile App Google Play

Reference only, provided as-is: verify against Contemporary Controls’s current documentation and the live device before use. Not official Contemporary Controls information. Terms of use.

BMS integration notes: Contemporary Controls Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX

Integration in brief

Map the highest concentration and its zone, then the ppm and alarm level of each zone in use. Outputs in this profile change stored values or settings, so write them only on purpose.

Minimum points to map

The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.

ObjectNameWhyAccess
AI 45(STATUS) HIGHEST CONCENTRATIONHighest concentration, ppmRead
AI 44(STATUS) HIGHEST CONC ZONEZone with highest concentrationRead
AI 2PPM ZONE 1Zone 1 concentration, ppmRead
AI 18ALARM LEVEL ZONE 1Zone 1 alarm levelRead
AI 38(STATUS) ACTIVE ALARM COUNTActive alarm countRead
AI 34(STATUS) MODEMonitor modeRead
AI 1FAULT CODEFault codeRead
AO 151ALL ALARM ACKAcknowledge all alarmsCommand

Network setup

Contemporary Controls Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX BACnet objects

Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.

Note: the source document has no read/write column, so access here is inferred from the object type (inputs read-only, values writable). Confirm on the live controller before writing.

151 of 151 shown
Type
Access
Show
Contemporary Controls Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX BACnet Points List
DescriptionStates
AImin1FAULT CODEModbus 402000Read
AImin2PPM ZONE 1Modbus 402001Read
AI3PPM ZONE 2Modbus 402002Read
AI4PPM ZONE 3Modbus 402003Read
AI5PPM ZONE 4Modbus 402004Read
AI6PPM ZONE 5Modbus 402005Read
AI7PPM ZONE 6Modbus 402006Read
AI8PPM ZONE 7Modbus 402007Read
AI9PPM ZONE 8Modbus 402008Read
AI10PPM ZONE 9Modbus 402009Read
AI11PPM ZONE 10Modbus 402010Read
AI12PPM ZONE 11Modbus 402011Read
AI13PPM ZONE 12Modbus 402012Read
AI14PPM ZONE 13Modbus 402013Read
AI15PPM ZONE 14Modbus 402014Read
AI16PPM ZONE 15Modbus 402015Read
AI17PPM ZONE 16Modbus 402016Read
AImin18ALARM LEVEL ZONE 1Modbus 402017Read
AI19ALARM LEVEL ZONE 2Modbus 402018Read
AI20ALARM LEVEL ZONE 3Modbus 402019Read
AI21ALARM LEVEL ZONE 4Modbus 402020Read
AI22ALARM LEVEL ZONE 5Modbus 402021Read
AI23ALARM LEVEL ZONE 6Modbus 402022Read
AI24ALARM LEVEL ZONE 7Modbus 402023Read
AI25ALARM LEVEL ZONE 8Modbus 402024Read
AI26ALARM LEVEL ZONE 9Modbus 402025Read
AI27ALARM LEVEL ZONE 10Modbus 402026Read
AI28ALARM LEVEL ZONE 11Modbus 402027Read
AI29ALARM LEVEL ZONE 12Modbus 402028Read
AI30ALARM LEVEL ZONE 13Modbus 402029Read
AI31ALARM LEVEL ZONE 14Modbus 402030Read
AI32ALARM LEVEL ZONE 15Modbus 402031Read
AI33ALARM LEVEL ZONE 16Modbus 402032Read
AImin34(STATUS) MODEModbus 402033Read
AI35(STATUS) STATEModbus 402034Read
AI36(STATUS) ACTIVE ZONEModbus 402036Read
AI37(STATUS) MAX ALARMModbus 402037Read
AImin38(STATUS) ACTIVE ALARM COUNTModbus 402038Read
AI39(STATUS) ACK'D ALARM COUNTModbus 402039Read
AI40RESERVEDModbus 402040Read
AI41(STATUS) FAULT CODEModbus 402041Read
AI42(STATUS) AUDIBLE ALARMModbus 402042Read
AI43(STATUS) SILENCEDModbus 402043Read
AImin44(STATUS) HIGHEST CONC ZONEModbus 402044Read
AImin45(STATUS) HIGHEST CONCENTRATIONModbus 402045Read
AI46(STATUS) ZONES INSTALLEDModbus 402046Read
AI47(SENSOR) MANIFOLD PRESSURE x100Modbus 402047Read
AI48(SENSOR) AMBIENT PRESSURE x100Modbus 402048Read
AI49(SENSOR) VACUUM PRESSURE x100Modbus 402049Read
AI50(SENSOR) BENCH TEMP x100Modbus 402050Read
AI51(SENSOR) AVE VOLTAGE x1000Modbus 402051Read
AI52(SENSOR) ZERO VOLTS x1000Modbus 402052Read
AI53(SENSOR)AVE AU x10000Modbus 402053Read
AI54(SENSOR) BENCH PPMModbus 402054Read
AI55REFRIGERANT TYPE ZONE 1Modbus 403000Read
AI56REFRIGERANT TYPE ZONE 2Modbus 403001Read
AI57REFRIGERANT TYPE ZONE 3Modbus 403003Read
AI58REFRIGERANT TYPE ZONE 4Modbus 403003Read
AI59REFRIGERANT TYPE ZONE 5Modbus 403004Read
AI60REFRIGERANT TYPE ZONE 6Modbus 403005Read
AI61REFRIGERANT TYPE ZONE 7Modbus 403006Read
AI62REFRIGERANT TYPE ZONE 8Modbus 403007Read
AI63REFRIGERANT TYPE ZONE 9Modbus 403008Read
AI64REFRIGERANT TYPE ZONE 10Modbus 403009Read
AI65REFRIGERANT TYPE ZONE 11Modbus 403010Read
AI66REFRIGERANT TYPE ZONE 12Modbus 403011Read
AI67REFRIGERANT TYPE ZONE 13Modbus 403013Read
AI68REFRIGERANT TYPE ZONE 14Modbus 403013Read
AI69REFRIGERANT TYPE ZONE 15Modbus 403014Read
AI70REFRIGERANT TYPE ZONE 16Modbus 403015Read
AI71LEAK LEVEL ZONE 1Modbus 403016ppmRead
AI72LEAK LEVEL ZONE 2Modbus 403017ppmRead
AI73LEAK LEVEL ZONE 3Modbus 403018ppmRead
AI74LEAK LEVEL ZONE 4Modbus 403019ppmRead
AI75LEAK LEVEL ZONE 5Modbus 403030ppmRead
AI76LEAK LEVEL ZONE 6Modbus 403031ppmRead
AI77LEAK LEVEL ZONE 7Modbus 403033ppmRead
AI78LEAK LEVEL ZONE 8Modbus 403033ppmRead
AI79LEAK LEVEL ZONE 9Modbus 403034ppmRead
AI80LEAK LEVEL ZONE 10Modbus 403035ppmRead
AI81LEAK LEVEL ZONE 11Modbus 403036ppmRead
AI82LEAK LEVEL ZONE 12Modbus 403037ppmRead
AI83LEAK LEVEL ZONE 13Modbus 403038ppmRead
AI84LEAK LEVEL ZONE 14Modbus 403039ppmRead
AI85LEAK LEVEL ZONE 15Modbus 403030ppmRead
AI86LEAK LEVEL ZONE 16Modbus 403031ppmRead
AI87SPILL LEVEL ZONE 1Modbus 403032ppmRead
AI88SPILL LEVEL ZONE 2Modbus 403033ppmRead
AI89SPILL LEVEL ZONE 3Modbus 403034ppmRead
AI90SPILL LEVEL ZONE 4Modbus 403035ppmRead
AI91SPILL LEVEL ZONE 5Modbus 403036ppmRead
AI92SPILL LEVEL ZONE 6Modbus 403037ppmRead
AI93SPILL LEVEL ZONE 7Modbus 403038ppmRead
AI94SPILL LEVEL ZONE 8Modbus 403039ppmRead
AI95SPILL LEVEL ZONE 9Modbus 403040ppmRead
AI96SPILL LEVEL ZONE 10Modbus 403041ppmRead
AI97SPILL LEVEL ZONE 11Modbus 403042ppmRead
AI98SPILL LEVEL ZONE 12Modbus 403043ppmRead
AI99SPILL LEVEL ZONE 13Modbus 403044ppmRead
AI100SPILL LEVEL ZONE 14Modbus 403045ppmRead
AI101SPILL LEVEL ZONE 15Modbus 403046ppmRead
AI102SPILL LEVEL ZONE 16Modbus 403047ppmRead
AI103EVAC LEVEL ZONE 1Modbus 403048ppmRead
AI104EVAC LEVEL ZONE 2Modbus 403049ppmRead
AI105EVAC LEVEL ZONE 3Modbus 403050ppmRead
AI106EVAC LEVEL ZONE 4Modbus 403051ppmRead
AI107EVAC LEVEL ZONE 5Modbus 403052ppmRead
AI108EVAC LEVEL ZONE 6Modbus 403053ppmRead
AI109EVAC LEVEL ZONE 7Modbus 403054ppmRead
AI110EVAC LEVEL ZONE 8Modbus 403055ppmRead
AI111EVAC LEVEL ZONE 9Modbus 403056ppmRead
AI112EVAC LEVEL ZONE 10Modbus 403057ppmRead
AI113EVAC LEVEL ZONE 11Modbus 403058ppmRead
AI114EVAC LEVEL ZONE 12Modbus 403059ppmRead
AI115EVAC LEVEL ZONE 13Modbus 403060ppmRead
AI116EVAC LEVEL ZONE 14Modbus 403061ppmRead
AI117EVAC LEVEL ZONE 15Modbus 403062ppmRead
AI118EVAC LEVEL ZONE 16Modbus 403063ppmRead
AI119DISTANCE ZONE 1Modbus 403064ftRead
AI120DISTANCE ZONE 2Modbus 403065ftRead
AI121DISTANCE ZONE 3Modbus 403066ftRead
AI122DISTANCE ZONE 4Modbus 403067ftRead
AI123DISTANCE ZONE 5Modbus 403068ftRead
AI124DISTANCE ZONE 6Modbus 403069ftRead
AI125DISTANCE ZONE 7Modbus 403070ftRead
AI126DISTANCE ZONE 8Modbus 403071ftRead
AI127DISTANCE ZONE 9Modbus 403072ftRead
AI128DISTANCE ZONE 10Modbus 403073ftRead
AI129DISTANCE ZONE 11Modbus 403074ftRead
AI130DISTANCE ZONE 12Modbus 403075ftRead
AI131DISTANCE ZONE 13Modbus 403076ftRead
AI132DISTANCE ZONE 14Modbus 403077ftRead
AI133DISTANCE ZONE 15Modbus 403078ftRead
AI134DISTANCE ZONE 16Modbus 403079ftRead
AO135ALARM ACK ZONE 1Modbus 403080Command
AO136ALARM ACK ZONE 2Modbus 403081Command
AO137ALARM ACK ZONE 3Modbus 403082Command
AO138ALARM ACK ZONE 4Modbus 403083Command
AO139ALARM ACK ZONE 5Modbus 403084Command
AO140ALARM ACK ZONE 6Modbus 403085Command
AO141ALARM ACK ZONE 7Modbus 403086Command
AO142ALARM ACK ZONE 8Modbus 403087Command
AO143ALARM ACK ZONE 9Modbus 403088Command
AO144ALARM ACK ZONE 10Modbus 403089Command
AO145ALARM ACK ZONE 11Modbus 403090Command
AO146ALARM ACK ZONE 12Modbus 403091Command
AO147ALARM ACK ZONE 13Modbus 403092Command
AO148ALARM ACK ZONE 14Modbus 403093Command
AO149ALARM ACK ZONE 15Modbus 403094Command
AO150ALARM ACK ZONE 16Modbus 403095Command
AOmin151ALL ALARM ACKModbus 403096Command
Object ID lookup: Contemporary Controls BASgatewayLX Bacharach HGM-MZ point IDs by name

Integration notes

Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.

Questions about the Contemporary Controls Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX

How many BACnet points does the Contemporary Controls Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX have?

This list has 151 BACnet objects: 134 analog inputs, 17 analog outputs. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Contemporary Controls Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX BACnet points are writable?

17 of the 151 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done. The source has no read/write column, so this is inferred from object type.

Where is the official Contemporary Controls Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX BACnet documentation?

The source is BASgatewayLX Modbus device profile Bacharach_Multizone_Gas_Monitor_a (Bacharach_Multizone_Gas_Monitor_a_LX.csv), published free by Contemporary Controls at https://www.ccontrols.com/support/dp/Bacharach_Multizone_Gas_Monitor.zip.

What are the minimum BACnet points to integrate the Contemporary Controls Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX?

Start with AI 45 (STATUS) HIGHEST CONCENTRATION (Highest concentration, ppm); AI 44 (STATUS) HIGHEST CONC ZONE (Zone with highest concentration); AI 2 PPM ZONE 1 (Zone 1 concentration, ppm); AI 18 ALARM LEVEL ZONE 1 (Zone 1 alarm level); AI 38 (STATUS) ACTIVE ALARM COUNT (Active alarm count); AI 34 (STATUS) MODE (Monitor mode); AI 1 FAULT CODE (Fault code); AO 151 ALL ALARM ACK (Acknowledge all alarms).

How do I check these points on the real Bacharach HGM-MZ multi-zone refrigerant monitor via BASgatewayLX?

Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.

More Contemporary Controls BACnet points lists

Source: BASgatewayLX Modbus device profile Bacharach_Multizone_Gas_Monitor_a · Bacharach_Multizone_Gas_Monitor_a_LX.csv. Object names, instances and units are reproduced as published; descriptions are our own.