Overview
AMB200 is an online temperature monitoring device for insulated busway connectors. It draws power directly from busbars via built-in probes, monitoring A/B/C/N temperatures and humidity. Supports pre-alarm/alarm with configurable thresholds. RS485 or LoRa wireless communication. Probe spacing adjustable 10-18mm. Local digital display and infrared communication. Ideal for busway joint temperature monitoring in data centres, industrial plants, and switchgear.
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Builtin Probe Power Takeoff
- AC/DC 85～265V from busbar probes
- No external power supply needed
- Probe spacing adjustable 10-18mm
- Compatible with different busbars
- Safe insulation >100MΩ (probe to probe)
Multichannel Temperature & Humidity
- 4 temperature probes (A/B/C/N)
- Temperature range -20…200℃
- Accuracy ±2℃
- Builtin humidity sensor
- Humidity range 20%～90% RH
Flexible Communication & Alarm
- RS485 / LoRa / Infrared optional
- ModbusRTU protocol
- Configurable prealarm & alarm thresholds
- Onboard buzzer for local alert
- Alarm duration statistics
Easy Installation & Display
- Builtin contact design
- Probe Gear Adjustment Switch (5 positions: 10/12/14/16/18 mm)
- 4-digit digital tube display
- LED indicators for run/alarm/rx/tx
- IP65 front panel (LoRa version)
Function
| Temperature Monitoring | • 4 builtin temperature probes (A/B/C/N) • Measurement range: -20℃…200℃ • Accuracy: ±2℃ • Realtime temperature display • Temperature prealarm and alarm |
| Humidity Monitoring | • Builtin humidity sensor • Measurement range: 20%～90% RH • Accuracy: ±5% RH • Realtime humidity reading |
| Power Supply | • Builtin probe power takeoff • Input voltage: AC/DC 85～265V • No external power adapter needed • Probe to probe insulation >100MΩ • Withstand voltage AC 2kV 1min (probes & communication) |
| Communication | • RS485 / ModbusRTU • LoRa wireless (optional) • Infrared communication • Default baud rate: 9600 (RS485) • Adjustable parameters: address / baud / Parity bit / LoRa frequency band / Spreading factor |
| Prealarm & Alarm Function | • Configurable prealarm and alarm thresholds • Alarm trigger: temperature exceeds threshold • Buzzer sounds on alarm • Alarm duration statistics (up to 8 channels) • Alarm status readable via communication |
| Display & Indicators | • 4digit digital tube • Cyclic display of A/B/C/N temperature • Display address/baud rate/LoRa parameters • Run LED (green, 1s blink) • Alarm LED (red, solid on alarm) • Rx/Tx LEDs for communication status |
| Configuration & Control | • Button operation: page/confirm/parameter+/cancel save • Remote buzzer silence via Modbus • Clear alarm/prealarm duration via Modbus • Probe Gear Adjustment Switch (5 positions: 10/12/14/16/18 mm) |
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Specification
| Parameter | Value |
| Measurement | 4channel temperature (A/B/C/N), humidity |
| Temperature Range | -20℃…200℃ |
| Temperature Accuracy | ±2℃ |
| Humidity Range | 20%～90% RH |
| Humidity Accuracy | ±5% RH |
| Power Supply | Builtin probe power takeoff, AC/DC 85～265V |
| Communication | RS485 / ModbusRTU, LoRa (optional), Infrared |
| RS485 Default Settings | 9600, 8, E, 1 |
| Infrared Default Settings | 1200, 8, E, 1 |
| Prealarm / Alarm Thresholds | Configurable via communication |
| Probe Spacing Adjustment | 5档位: 10mm, 12mm, 14mm, 16mm, 18mm |
| Display | 4digit digital tube, cyclic display |
| LED Indicators | Run, Alarm, Rx, Tx |
| Insulation Resistance | >100MΩ between probes (fuse removed) |
| Dielectric Strength | AC 2kV 1min between probes/communication (fuse removed) |
| Operating Temp. (device) | -20℃…85℃ |
| Operating Temp. (probe) | -20℃…200℃ |
| Storage Temp. | -40℃…85℃ |
| Humidity | ≤93% RH (noncondensing) |
| Altitude | ≤2000m |
| Protection Grade | LoRa version: front panel IP65; RS485 version: front panel IP30 |
| Pollution Degree | 2 |
| EMC Compatibility | ESD: level 3; Fast transient: level 4; Surge: level 4; RF field: level 3 |
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FAQ
AMB200 is powered by builtin probes drawing power directly from busbars A, B, C, N (AC/DC 85～265V). No external power supply is needed.
AMB200 monitors the temperature of phases A, B, C, N (20…200℃, accuracy ±2℃) and humidity inside the busway (20%～90% RH, accuracy ±5% RH) in real time.
Yes. There is a 5position switch on the back of the device, corresponding to 10mm, 12mm, 14mm, 16mm, and 18mm. Set it to match the actual busbar spacing during installation.
AMB200 supports RS485 (ModbusRTU), optional LoRa wireless, and infrared communication. Choose according to site requirements.
Set via RS485 or LoRa communication by writing to address 0x0030 (temperature prealarm) and 0x0031 (temperature alarm), unit in ℃.
First check if the probes are securely connected to the busbars (device powered on), then verify that communication parameters (address, baud rate, parity) match. If the issue persists, try power cycling or contact technical support.
Summary
The AMB200 eliminates external power needs by drawing energy directly from busbars via adjustable probes. It provides real-time temperature and humidity data with configurable pre-alarm and alarm thresholds. Flexible communication options (RS485, LoRa, infrared) suit various system architectures. Local display and alarm logging facilitate on-site inspection. A practical solution for preventing busbar joint failures caused by overheating.
