Delta OHM HD 9008TR Mode D'emploi page 5

4. Set the Pt100 simulator at the temperature corresponding to the scale upper
value. For example, if you want to configure the –10°C...+80°C range, the
simulator has to be set at –10°C; the equivalent resistance value will be
96.09Ω. If the calibration is carried out with a fixed resistance, connect a
96.09Ω fixed resistance to the terminals to which the sensor was soldered.
5. Wait 10 seconds until the measurement becomes steady, press the
"CAL °C" key (calibration) and hold it down for min. 5 seconds, until the
LED first flashes (once) and then remains on.
6. Set the Pt100 simulator at the temperature value provided for the full scale.
According to the above example, the simulator will be set at +80°C; the
equivalent resistance value will be 130.89Ω; if the calibration is carried out
with a fixed resistance, a 130.89Ω fixed resistance will have to be connected
to the terminals to which the sensor was soldered.
7. Wait 10 seconds until the measurement becomes steady, press the
"CAL °C" key (calibration) and hold it down for min. 5 seconds, until the
LED is off. When you release the key, the LED will flash twice to confirm that
programming took place. Now the procedure is over.
8. Check that the configuration corresponds to the requested specifications, by
setting the simulator (or connecting the precision resistances) at the values
corresponding to the upper and full scale value and by checking the output
with the ammeter 8HD9008TR) or with the voltmeter (HD9009TR).
9. Solder again the temperature sensor.
10. Insert again the sensor protection filter, screw the bottom, put the rubber bulb
again at its place and screw the grommet holding the cable firmly to avoid
twisting.
11. The temperature output programming is over.
TECHNICAL DATA
Electronics Working Temperature
Sensor Working Temperature
Transmitter Power Supply
Measuring Range
Accuracy at 20°C
Response time at 63% of final variation
Output Signal
Load Resistance
Measuring Range – Standard Configuration - (**)
Accuracy
Response time at 63% of final variation
Output Signal
Load Resistance
Dimensions
Cable Dimensions
Maximum Length (***)
Wire Min. Section
Cable Max. Diameter
(*) For HD9009TR models, 0...5Vdc, 1...5Vdc, 1...6Vdc, 0...10Vdc voltage outputs can be provided on ordering.
(**) Out-of-standard measuring ranges have to be requested when ordering and have to be re-programmed with a Pt100 simulator.
(***) Use screened cables.
Fig.3
D
GND
V RH
V t
V dc
0%RH
100%RH
Saturate reference solutions are available for RH calibration. Calibration is
suggested every 12/18 months for instruments with continuous operation,
according to the environment they are working in. Check that the sensor and
the atmosphere where it is employed be compatible, above all in case of
aggressive environments (they might corrode the sensor).
HD9007
MULTIPLATE RADIATION SHIELD
Characteristics
Luran S777K (BASF) antistatic UV-resistant thermoplastic material with low
thermal conductivity and high reflection.
White power-painted anticorodal aluminium support bracket. Stainless steel U-
bar mounting bracket for shafts from 25 to 44mm.
Dimensions: external Ø : 125 mm.
Height, excluding bracket: HD9007 Al:
HD9007 A2:
Sensor fixing ring nuts: Ø 27 mm, Ø 25 mm on demand when ordering.
HD9007 ring-shield is suitable to protect temperature and RH/temperature
sensors used in weather stations from solar radiations, rain and wind.
C B
HD9008TR
-40...+80°C
-40...+80°C
7...30Vdc
(4...20mA)
5...98%RH
±2%RH (5...90%RH)
±2.5%RH (for the remaining range values)
60s with filter; 5s without filter
= 4.0mA
= 20.0mA
(Vdc - 7)
R
=
Lmax
22mA
-40...+80°C
±0.1°C ±0.1% of measurement
60s with filter; 5s without filter
-40°C = 4.0mA
+80°C = 20.0mA
(Vdc - 7)
R
=
Lmax
22mA
Ø 26 x 225mm
200m
20 AWG - 0.5mm
2
Ø5mm
5
190 mm, weight: 640 gr.
240 mm, weight: 760 gr.
A
HD9009TR
7...30Vdc
(2mA)
0%RH = 0.00 Vdc
100%RH = 1.00 Vdc (*)
R =10KΩ
inMIN
-40...+60°C
-40°C = 0.00 Vdc
+60°C= 1.00 Vdc (*)
R =10KΩ
inMIN
10m
20 AWG - 0.5mm
2
Ø5mm