Sentera Controls HPD, Mounting And Operating Instruction

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PRODUCT DESCRIPTION
The HPD series are compact high resolution double differential pressure transmitters,
which are equipped with two fully digital pressure transducer designed for a wide
range of applications. Air velocity readout is available by connecting an external
Pitot tube connection set. All parameters are accessible via Modbus RTU (3SModbus
software or Sensistant). They also feature integrated K-factor and 2 analogue /
modulating outputs (0—10 VDC / 0—20 mA / 0—100 % PWM).
ARTICLE CODES
Codes Power supply
Maximum power
consumption
Nominal power
consumption
Imax Operating range
HPD-F-1K0
18—34 VDC 1,85 W 1,35 W 100 mA
0—1.000 Pa
HPD-F-2K0 0—2.000 Pa
HPD-F-4K0
0—4.000 Pa
HPD-F-10K 0—10.000 Pa
HPD-G-1K0
18—34 VDC / 1,85 W 1,35 W 105 mA
0—1.000 Pa
HPD-G-2K0 0—2.000 Pa
HPD-G-4K0
15—24 VAC ±10 % 3,4 W 2,5 W 230 mA
0—4.000 Pa
HPD-G-10K 0—10.000 Pa
INTENDED AREA OF USE
■
Differential pressure measurement in HVAC applications
■
Volume flow measurement in HVAC applications
■
Air velocity measurement (by using an external PSET-PTX-200 Pitot tube
connection set) in HVAC applications
■
Differential pressure / volume flow monitoring in clean rooms
■
Clean air and non-aggressive, non-combustible gases
TECHNICAL DATA
■
2 built-in digital high resolution differential pressure sensors
■
Air velocity can be measured via Modbus RTU (by using an external PSET-PTX-200
Pitot tube connection set)
■
2 selectable analogue / modulating outputs: 0—10 VDC / 0—20 mA / PWM (open
collector type):
►
0—10 VDC mode: R
L
≥ 50 kΩ
► 0—20 mA mode: R
L
≤ 500 Ω
► PWM mode: PWM Frequency: 1 kHz, R
L
≥ 50 kΩ
■
Minimum differential pressure range span: 5 Pa
■
Minimum volume flow range span: 10 m
3
/h
■
Minimum air velocity range span: 1 m/s
■
Selectable response time: 0,1—10 s
■
Implemented K-factor
■
Selectable internal voltage source for PWM output: 3,3 or 12 VDC
■
Differential pressure, air volume or air velocity readout via Modbus RTU
■
Selectable minimum and maximum operating ranges
■
Modbus registers reset function (to factory pre-set values)
■
Modbus RTU communication
■
Sensor calibration procedure via tact switch
■
Aluminium pressure connection nozzles
■
Accuracy: ±2 % of the operating range
■
Operating ambient conditions:
► Temperature: -5—65 °C
► Rel. humidity: < 95 % rH (non-condensing)
■
Storage temperature: -20—70 °C
DUAL DIFFERENTIAL
PRESSURE TRANSMITTER
HPD