Delta OHM HD40.2, Manual

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HD402TR
- 4 -
V1.0
2 TECHNICAL CHARACTERISTICS
Sensor Piezoresistive, High stability
Measuring range From ±250 Pa to ±200 kPa both relative and differential
Refer to table 1
Resolution Refer to table 2
Accuracy @ 25 °C
± 1.5% f.s. nominal for HD402TR1L
± 0.75% f.s. nominal for HD402TR2L
± 1% f.s. nominal for HD402TR3L, HD402TR4L and HD402TR5L
Accuracy @ 0…50 °C
± 3% f.s. nominal for HD402TR1L
± 1% f.s. nominal for HD402TR2L, HD402TR3L, HD402TR4L and
HD402TR5L
Long term stability (1000 h)
@ 25 °C
± 0.5% f.s. nominal for HD402TR1L and HD402TR2L
± 0.35% f.s. nominal for HD402TR3L
± 0.25% f.s. nominal for HD402TR4L and HD402TR5L
Alarm Front LED, internal buzzer, relay switch
Output
SPDT Relay switch
3 A/250 Vac
3 A/30 Vdc resistive load
Connection to PC
RS232 serial port
Can be connect to a USB port by using the optional CP27 adapter
Configuration Settable unit of measurement, thresholds, hysteresis, delay and alarm
operation mode
Auto-zero Automatic for HD402TR1L, manual for the other models
Response time 0.5 seconds for the display updating
Overpressure limit 50 kPa for HD402TR1L, HD402TR2L and HD402TR3L
200 kPa for HD402TR4L
400 kPa for HD402TR5L
Compatible media Only air and non-aggressive dry gases
Power supply 24 Vac ± 10% or 15…36 Vdc
Absorption < 1 W @ 24 Vdc
Pressure connection Ø 6.2 mm for tubes with internal Ø 5…6 mm
Electrical connections Screw terminal block, max 1.5 mm
2
, PG9 cable gland for the input cable
Operating conditions -10…+60 °C / 0…95% RH
Storage temperature -20…+70 °C
Housing dimensions 80 x 84 x 44 mm
Protection degree IP65
TAB. 1: full scale values and units of measurement
Model Pa kPa mbar mmH
2
O inchH
2
O mmHg PSI
HD402TR1L 250 --- 2.5 25 1 --- ---
HD402TR2L 1000 --- 10 100 4 --- ---
HD402TR3L --- 10 100 --- --- 50 1.5
HD402TR4L --- 100 1000 --- --- 500 15
HD402TR5L --- 200 2000 --- --- 1000 30