PipeMonitor-TDR
Insulation and loop resistance monitoring station with time domain reflectometer for fault location
The District Heating Monitoring System PipeMonitor-TDR surveilles the insulation and loop resistance of wire systems (Cu System (Nordic) and Hierarchical Systems (HDW, JR Isotronic)) in pipes in the LANCIER Monitoring UMS system.
The integrated multiplexer module allows for the monitoring of up to 8 measuring pairs with only one measuring device.
If the PipeMonitor-TDR detects faults on one of the measuring pairs, the TDR module is automatically switched on for fault location. In this way, the location of the fault is determined within a very short time and troubleshooting can be initiated immediately.
A copper pair in the pipes to be monitored serves as a measuring loop, which is continuously measured by the PipeMonitor-TDR. The alarm thresholds for insulation and loop resistance are freely programmable on site or remotely. All settings are saved in an internal EEPROM memory to prevent losses.
For remote alarming, the PipeMonitor-TDR has built-in dry contact outputs.
The PipeMonitor-TDR detects and localizes anomalies such as humidity faults, wire breaks and wire-pipe contacts quickly and precisely.
Ordering Data
| District Heating Monitoring System PipeMonitor-TDR for fault location, equipped with time-domain reflectometer measuring module, color touch screen and | |
| 2-channel multiplexer | Order-no. 076872.002 |
| 4-channel multiplexer | Order-no. 076872.004 |
| 6-channel multiplexer | Order-no. 076872.006 |
| 8-channel multiplexer | Order-no. 076872.008 |
Technical Data
| PipeMonitor-TDR | |
| Number of Measurement channels | 2 - 8 |
| Operating temperature | -20 .. +40 °C |
| Admissible ambient humidity | 0 .. 95 %, humidity, non-condensing |
| Dimensions (W x H x D) | 546 x 416 x 186 mm |
| Resistance measurement | |
| Insulation resistance Measurement range / Resolution | 0 .. 1 M / 0,001 MΩ, fault ± 5 % of measurement ±0,01 MΩ 1 .. 200 MΩ / 0,01 MΩ, fault ± 5 % of measurement ±0,01 MΩ |
| Loop resistance Measurement range / Resolution | 0 .. 10 kΩ / 0,001 kΩ, fault ± 5 % of measurement ±0,05 kΩ |
| Measuring voltage | 24 V DC |
| Signal LEDs | 2 x green / red: Alarm / Acknowledged alarm / Display operation insulation resp. loop 1 x blue: display operation |
| Signal outputs | 2 dry change-over contacts for: insulation and loop resistance Max. switchable voltage / current 100 V DC / 0.1 A DC |
| Fault location via TDR | |
| Measurement range | 62.5 .. 64,000 m |
| Location fault | 0.01 % .. 0.2 % of the measured value (12.5 cm to 8.0 m, depending on the subsections) |
| Impedance | 30 .. 500 Ω, adjustable |
| Impulse width | 10 ns .. 50 μs |
| V/2 | 50.0 .. 150.0 m/μs |
| Impulse amplitude | 10 V with matched load |
| Input sensitivity | 1 mV |
| Dynamic range | 80 dB |
| Signal output | dry change-over contact for: impedance Max. switchable voltage / current 100 V DC / 0.1 A DC |