Regin PDT 2 Serie Anleitung

INSTRUCTION
EN
Presigo PDT...(-2)
i i
Read this instruction before installation
and wiring of the product
Pressure transmitter
Presigo PDT...(-2) are single or dual port pressure transmitters with
one or two analogue outputs for 0...10 V or 4...20 mA (selectable).
Technical data
Supply voltage 24 V AC/DC ±15 %
Protection class IP54
Calculated power consumption
0...10 V mode 2 VA (rms) / min. trafo size 7.5 VA
4...20 mA mode 2.7 VA (rms) / min. trafo size 9 VA
Overall accuracy, pressure ≤ 1 % full scale
Annual deviation (typical)
P1250 models ±2 Pa
P2500 models ±4 Pa
P7500 models ±20 Pa
Damping (settable) 1, 2, 4 and 8 s
Operating temperature range -25...+50°C
Operating humidity Max. 95 % RH (non-condensing)
Overvoltage on any terminal Max. ±18 V (referenced to GND)
Accessories, included Two pressure outlets (straight) and
2 m plastic tube. Art. no.: ANS-20
Analogue outputs AO1, AO2
Configured as 0...10 V Load impedance ≥ 10 kΩ,
Output impedance ≤ 35Ω
Configured as 4...20 mA Output is actively sourced into a resistive
load impedance to signal ground. The
load impedance must be between
40...500Ω
Pressure ranges (full scale)
Model Pressure mBar
range (Pa)
PDT12 PS1 0...1250 0...12.5
PDT25 PS1 0...2500 0...25
PDT75 PS1 0...7500 0...75
PS1 0...1250 0...12.5
PDT12S25-2
PS2 0...2500 0...25
PS1 0...1250 0...12.5
PDT12S75-2
PS2 0...7500 0...75
Note: The suffix in the name denotes the number of sensors in the unit.
The suffix "-2" indicates two sensors. No suffix means one sensor only.
The "S" in the name denotes split/different sensor ranges for PS1 and
PS2.
Installation
The transmitter comes with one cable gland mounted and one loose. If
two cables are used, one for supply voltage and one for output signals,
the other cable gland must be assembled to the housing. Screw in the
cable gland until the plastic knockout in the housing snaps. Make sure to
remove the plastic knockout completely. Secure the cable gland.
Presigo PDT...(-2)
1. Mount the transmitter horizontally or vertically on a stable,
vibration-free surface. If the unit is installed in a humid environ-
ment, install it vertically with the cable gland edge of the unit
pointing down to allow moisture to escape.
Take extra care when connecting the hoses to the inlet ports, as
the thin inner connections of the inlets are very sensitive. The lid
should be kept closed while performing the connections, or the
thin tubing might detach from the sensor.
2. Refer to the graphics below for wiring. Use the leftmost cable
gland for supply voltage and use the rightmost gland for output
mmH O inH O
signals in order to minimise crosstalk between supply wires and
2 2
signal wires.
0...125 0...5
3. Set the DIP-switch to the desired operational mode and param-
0...250 0...10 eters.
4. Power up the unit.
0...750 0...30
5. Let the unit warm up for 10 minutes, then perform a zero-set
0...125 0...5
calibration by pressing the pushbutton.
0...250 0...10
6. Connect plastic tubes from the ventilation duct to the pressure
inlets.
0...125 0...5
NOTE: A straight cut off nipple must be used for mounting in the
0...750 0...30
ventilation duct.
For optimal measuring results, measuring points with turbulent
air flow should be avoided. Preferably, measuring should be
performed at a distance of 2 duct diameters before bends and
branching and at 6 duct diameters after bends and branching.
Wiring
1. G (+)
2. G0 (-)
3. AO1 +
4. AOI GND
5. AO2 +
6. AO2 GND
Terminals 2, 4 and 6 are internally connected (GND/G0).
For models with two sensors, the leftmost DIP-switch controls sensor
1 and the rightmost DIP-switch controls sensor 2 (see diagram 2
below).
1