Multifunctional PID controller with differential pressure or air flow transmitter and Modbus communication.
DPT-Ctrl-MOD enables to control constant pressure or flow of fans, VAV systems or dampers. In addition, the controller is fully programmable via Modbus.
The DPT-Ctrl-MOD includes an Input terminal that enables the reading of multiple signals such as temperature or control relays over Modbus. The Input terminal has one input channel designed to accept 0−10 V, ntc10k, Pt1000, Ni1000/(-LG), and BIN IN (potential free contact) signals.
Technical details
| Communication: | RS-485 Modbus (RTU) |
| Accuracy (from applied pressure): (model 2500) |
Pressure < 125 Pa = 1 % + ±2 Pa Pressure > 125 Pa = 1 % + ±1 Pa |
| Accuracy (from applied pressure): (model 7000) |
Pressure < 125 Pa = 1.5 % + ±2 Pa Pressure > 125 Pa = 1.5 % + ±1 Pa |
| Measuring units: | Pressure: Pa, kPa, mbar, inchWC, mmWC, psi Flow: m3/s, m3/hr, cfm, l/s, m/s, ft/min |
| Measuring element | MEMS, no flow-through |
| Control signal: | 0…10 V or 4…20 mA (selectable by jumper) |
| Output signal for pressure or air flow (selectable via menu): | 0…10 VDC, Load R minimum 1 kΩ or 4…20 mA, maximum load 500 Ω (selectable by jumper) |
| PID-parameters: | Adjustable via menu |
| Zero point calibration: | via Modbus or by pushbutton |
| Supply voltage: | 24 VDC ±10 % / 24 VAC ±10 % |
| Power consumption: | < 1.0 W |
| Operating temperature: | -20…+50 °C (with autozero calibration -5...+50 °C) |
| Protection standard: | IP54 |