Differential pressure transmitter with Modbus communication and Input terminal
DPT-MOD
DPT-MOD requires less wiring than the traditional 3-wire transmitters since multiple devices can be connected on serial line.
The DPT-MOD includes an Input terminal that enables reading of multiple other signals such as temperature or control relays over Modbus.
The Input terminal has two input channels designed to accept 0−10 V, ntc10k, Pt1000, Ni1000/(-LG), and BIN IN (potential free contact) signals. For example, DPT-MOD can read values from one differential pressure measurement point and two temperature measurement points. Hence, the DPT-MOD does the work of three transmitters.
DPT-MOD series devices are commonly used in HVAC/R systems for:
• fan, blower and filter monitoring
• pressure and flow monitoring
• valve and damper control
• pressure monitoring in cleanrooms
Technical specifications
Suitable media:Air and non-aggressive gases
Communication:
MODBUS RTU, over RS485
8 data bits, parity bit: selectable, 1 stop bit, baud rate: selectable
Response Time:
1…20 s selectable via menu
Measuring element:
Piezoresistive
Max pressure:
400 kPa
Accuracy (from applied pressure):
±1,5 % +1 Pa
(including: general accuracy, temperature drift, linearity,
hysteresis and repetition error)
Electrical interface:
• Supply voltage: 24 VAC or VDC ± 10 %
• Power consumption: < 1.3 W
• Output signal: via Modbus
Materials:
• Housing: ABS
• Cover: PC
• Pressure connections: Brass
• Tubing: PVC
Connections:
• Electrical connections: 4+3 spring load terminals, max 1.5 mm2
• Cable entry: M20
• Pressure connections: Male, Ø=5,0 mm and 6,3 mm
Weight:
150 g, with accessories 290 g
Dimensions:
102,0 x 71,5 x 36,0 mm
General ambient condition:
Temperature range:
• Operation: -10…+50 °C
• Storage: -20…+70 °C
Ambient humidity: 0 to 95 % rH
Safety:
Protection standard: IP54
Conformance:
Meets the requirements for CE marking:
• EMC Directive 2004/108/EY
• Rohs Directive 2002/95/EY
• WEEE Directive 2002/96/EC
UNI EN ISO 9001:2015
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Organization with certified management system
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Calibration Certificates Accredia