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Datasheet generated 2026-10-07
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Danfoss GD Heavy Duty gas detection unit, ammonia (R717) catalytic pellistor, 0–140000 ppm, ATEX/IECEx-certified, wall-mount (148H6039)

Danfoss · Hazardous Area Equipment · Fixed Gas Detection · Denmark · danfoss.com
Part Number
148H6039  ·  HS 9027.10
Danfoss GD Heavy Duty gas detection unit, ammonia (R717) catalytic pellistor, 0–140000 ppm, ATEX/IECEx-certified, wall-mount (148H6039)

Danfoss GD Heavy Duty fixed gas detection unit, code 148H6039, a factory-calibrated wall-mount detector for ammonia (R717) in refrigeration machinery rooms, cold stores and process plant. Catalytic pellistor sensing element with a 0–140000 ppm measuring range and an LEL alarm relay (alarm 30000 ppm). On-board LCD display for local annunciation. The Heavy Duty version ships with an ATEX/IECEx certificate for installation in classified hazardous areas, operating -20 to +60 °C. Supplied as a complete unit with mounting kit, cable gland and a factory calibration certificate. Supply 16–28 V DC. Integrates with Danfoss AK-SM system managers and standard alarm panels. HS 9027.10. OEM P/N 148H6039.

Technical Specifications

TypeGas detection unit — GD Heavy Duty
Code number148H6039
Detected gasammonia (R717)
Sensor technologycatalytic pellistor
Measuring range0–140000 ppm
Pre-alarm (low) set point30000 ppm
Local annunciationLCD display
Supply voltage16–28 V DC
Operating temperature-20 to +60 °C
Hazardous-areaATEX/IECEx certificate supplied
Enclosurewall-mount, includes mounting kit and cable gland
Supplied withfactory calibration certificate
ApprovalsATEX; IECEx; EU RoHS; China RoHS
EAN5714279919653
Net weight1.3 Kilogram
Product groupSensors
Alarmlimits low [ppm] sensor130000 ppm
China RoHS complianceYes
Division40
EquipmentLCD Display
EU RoHS complianceYes
Gas detecting sensor versionHeavy Duty
Parts includedATEX/IECEx certificate
PFAS content [Yes/No]No
Power consumption [A]0.13 A
REACH Candidate List substancesNo
Refrig. range [ppm] sensor1 [max]140000 ppm
Refrig. range [ppm] sensor1 [min]0 ppm
RefrigerantsR717
Relative humidity (RH) [%] [max]90 %
Relative humidity (RH) [%] [min]15 %
Response delay [s]0 s
Sensor 1 typePellistor
Supply voltage [V] DC [max]28 V
Supply voltage [V] DC [min]16 V
Temperature range [°C] [max]60 °C
Temperature range [°C] [min]-20 °C
Temperature range [°F] [max]140 °F
Temperature range [°F] [min]-4 °F

Properties

Temperature range-20 to +60 °C
MOQ1

Compatibility

Confirm the target gas (ammonia (R717)), detection range (0–140000 ppm) and supply voltage (16–28 V DC) match the installation before ordering; the sensor element is gas-specific and factory-calibrated. This Heavy Duty version is ATEX/IECEx-certified for hazardous areas — do not substitute a standard version where a certified unit is specified.

Standards

Approvals

Attached Documents