HD35
- 72 -
V1.12
Data logger models in waterproof 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)
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)
K = Temperature with thermocouple sensor (K/4 = 4 channels)
R = Solar radiation (pyranometer)
I = Illuminance low range (0...20,000 lux), I2 = Illuminance high range (0...200,000 lux)
F = PAR (Photosynthetically Active Radiation )
P = Rainfall quantity
L = Leaf wetness
S = Soil volumetric water content
B = Carbon dioxide (CO
2
) range 0…5,000 ppm
B2 = Carbon dioxide (CO
2
) range 0…10,000 ppm
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 shown on the connector side.
In models measuring the atmospheric pressure, the sensor is inside the instrument.
TAB. 9.1.1: models of data loggers in waterproof housing
MEASUREMENTS
INPUTS
Fig.
Model
Number of
M12
connectors
Built-in
sensors
NTC
10K
Pt100
Pt1000 TC
Solar
panel
RH
Patm
PYRA
/ Lux
Rainfall
Leaf
CO
2
WBGT
HD35EDW 7P/1 TC
•
1
A
HD35EDW 7P/2 TC
•
2
B
HD35EDW 7P/3 TC
•
3
C
HD35EDW N/1 TC
•
1
A
HD35EDW N/2 TC
•
2
B
HD35EDW N/3 TC
•
3
C
HD35EDW N TV
•
•
D
HD35EDW K/4 TC
•
4 standard TC conn.
E
HD35EDW 1 TV
•
•
D
Summary of Contents for HD35AP series
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