HD35
- 39 -
V1.12
Data logger models in indoor-use housing
In order to highlight the physical quantities measured by data loggers, order codes include
some identification characters for the various quantities, according to the following convention:
1 = Humidity
4b = Atmospheric pressure (barometer)
4 = Differential pressure (4r1 = range 1, 4r2 = range 2, etc.)
N = Temperature with NTC10K sensor (N/1 = 1 channel, N/2 = 2 channels, N/3 = 3 channels)
7P = Temperature with Pt100/Pt1000 sensor (7P/1 = 1 channel, 7P/2 = 2 channels, 7P/3 = 3 channels)
A = Carbon monoxide (CO)
B = Carbon dioxide (CO
2
)
I = Illuminance low range (0...20,000 lux), I2 = Illuminance high range (0...200,000 lux)
U = UV irradiance (U=UVA, UB=UVB, UC=UVC)
TC = Probe with cable
TV (or TVI) = Fixed vertical probe without cable
TCV = Probe with cable + fixed vertical probe without cable
Models measuring temperature and humidity with a combined probe with cable (…TC models) use
the probes of the HP3517… series (with NTC 10K
Ω
@ 25 °C or Pt100 temperature sensor accord-
ing to the model). Replacement of the HP3517… probe requires recalibration of the in-
strument in line with the new probe.
In models with 2 or 3 M12 connectors, the input number is indicated above the connector.
In models for the measurement of the atmospheric pressure, the sensor is inside the instrument.
In models for the measurement of the differential pressure, please pay attention to the polarity
indicated next to connections.
TAB. 8.1.1: differential pressure measuring ranges
Model
Measuring range
HD35ED...4r1…
-2.5…+2.5 hPa (mbar)
HD35ED...4r2…
-10…+10 hPa (mbar)
HD35ED...4r3…
-100…+100 hPa (mbar)
HD35ED...4r4…
-2000…+2000 hPa (= 2 bar)
HD35ED...4r5...
(*)
-125…+125 Pa (for clean rooms)
(*)
The model r5 measures dynamic pressures (not suitable for the measurement of static pres-
sures) and requires a small air flow between the two pressure inputs. Metal inputs with tube clamp
ring to minimize pressure losses.
For the probes connection mode and the position of the integrated sensors in the various mod-
els, refer to the figures indicated in the last column of the following table.
Summary of Contents for HD35AP series
Page 120: ...HD35 120 V1 12 HD35EDLM TC...
Page 141: ...NOTES...
Page 142: ...NOTES...
Page 143: ...NOTES...
