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Measurement range:
Models with analog output: from 0…50 Pa (0…0.2” H2 O) to 0…1000 Pa (0…4” H2 O) relative and differential (see table 6)
Models with RS485 Modbus-RTU output: ±250 Pa, ±1000 Pa, ±100 mbar (see table)
For the SR models, the speed measurement ranges depend on the tube constant, the temperature and the pressure (see table 7 and figures 8 and 9)
Output signal:
Models with analog output: 0…10 Vdc (RL> 10 k) and 4…20 mA (RL < 500 @ 24 Vdc)
Models with digital output: RS485 Modbus-RTU
Accuracy: It depends on the model (see table 6)
Response time:
Models with analog output and dip-switch set to FAST: 0.125 s in pressure mode / 1 s in speed mode
Models with analog output and dip-switch set to LOW: default 2 s, can be changed to 1 s or 4 s with a serial command
Models with RS485 Modbus-RTU output: default 2 s, can be changed to 0.125 s, 1 s or 4 s with a serial command
Over-pressure limit: 50 kPa
Compatible media: Only air and non-aggressive gases
Power supply:
Models with analog output: 24 Vac +/- 10% or 18…40 Vdc
Models with RS485 Modbus-RTU output: 12…30 Vdc
Absorption:
Models with analog output: < 1 W @ 24 Vdc
Models with RS485 Modbus-RTU output: < 100 mW @ 12 Vdc
Pressure fit: With Ø 5 mm flexible tube
Electrical connections: Terminal board with screws, max 1.5 mm2 , PG9 cable gland for input cable
Working conditions: -10...+60 °C (-5…+50 °C for models with auto-zero AZ), 0…95% RH
Storage temperature: -20...+70 °C
Case sizes: 80 x 84 x 44 mm
Degree of protection: IP67
