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District Heating Monitoring Device

The PipeAlarm2 of LANCIER Monitoring is the compact and cost-effective monitoring device for district heating pipes as well as cooling pipes with surveillance pair inside their insulation layer.

It is easy to install and very user friendly. The device can trigger external alarm equipment such as sirens, beacon lights and others by its integrated dry contacts.

The two channel measuring devices PipeAlarm2 permanently monitor the flow and the return line of a district heating route. For this purpose they measure the insulation and loop resistance of the surveillance pair in the insulation layer of the pipes (both “Nordic System” and “NiCr-System”) according to EN 14419. In case of leakage, cut measuring loop or pipe connection they immediately raise an alarm thus preventing larger damage and economical loss. Pending insulation and loop resistance alarms can be acknowledged by the device’s push-buttons.

PipeAlarm2 devices store the measurement values (insulation and loop resistance) each a day for the last 30 day period to an internal EEPROM memory.

Configuration and threshold settings for insulation and loop resistance are programmable by a laptop which is connected to the Ethernet interface. The laptop’s internet browser is suitable to do this. No extra software is required.

Ordering Data

two channel measuring device for district heating routes
with pipe connection surveillance, indication panel and alarm output by dry contacts

PipeAlarm2 short Order-no. 074840.100
PipeAlarm2 Order-no. 074840.200

Technical Data

 PipeAlarm2 shortPipeAlarm2 
Supply voltage90 .. 250 V AC, 50 .. 60 Hz
Power consuptionmax. 5 W
Measurement channels2 (e. g. for flow and return line of a district heat pipe)
Measurement range insulation0 .. 5.0 MΩ
fault: 3% of measured value ±10 kΩ absolute 
0 .. 10 MΩ
fault: 3% of measured value ±10 kΩ absolute
Measurement range loop0 .. 5.0 kΩ
fault: 3% of measured value ±0.02 kΩ absolute
0 .. 9.99 kΩ
fault: 3% of measured value ±0.02 kΩ absolute
Measuring distance:NiCr <= 750 m, nordic system <= 3000 mNiCr <= 1500 m, nordic system <= 3000 m
Längenberechnungneinja, für NiCr
Measuring voltagetyp. 24 V DC
Displayper measurement channel 1 LED bar graph for „Iso measurement”
per measurement channel 1 signal LED for „Loop error” and „Iso error” each
Operation1 acknowledgement button each for „Iso alarm” and „Loop error”
1 Ethernet interface for device configuration
threshold settings and measurement reading
Signal outputs1 dry change-over contact per: insulation resistance, loop resistance
Max. switchable voltage: / current 250 V AC / 1 A AC
InterfaceEthernet 10/100 Mbit/s, temporary for configuration purposes
Operating temperature-5 °C .. +40 °C
Admissible humidity0 .. 50% at 40°C, 0 .. 100% at 25°C short-time
Degree of protection by enclosureIP 54
Field of applicationIndoor and sheltered installation according to DIN VDE 0100 part 737.
residential and business area as well as small enterprises
Dimensions  (h x w x d)146 x 111 x 238 mm (B x T x H)

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