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TAB. 9.5.1: memory capacity of data loggers in waterproof housing
Models
Number of
storable samples
Notes
HD35EDWN/1TC, HD35EDW7P/1TC, HD35EDWNTV, HD35EDW1TV,
HD35EDW1TVI
74,000
HD35EDWN/2TC, HD35EDW7P/2TC
56.000
HD35EDWN/3TC, HD35EDW7P/3TC
44,000
HD35EDW1NTC, HD35EDW17PTC, HD35EDW1NTV, HD35EDW1NTVI
22,000
(1)
HD35EDW1N/2TC, HD35EDW14bNTC, HD35EDW14b7PTC
20,000
(1)
Note 1:
they store also
5 calculated humidity quantities: dew point, wet bulb temperature, ab-
solute humidity, mixing ratio, partial vapor pressure.
A sample consists of all the quantities measured and calculated by the data logger at the same
acquisition time. For example, HD35EDW1NTC model detects two quantities and calculates five
(the derived humidity quantities) and a sample consists of a temperature measurement and
six humidity measurements (the relative humidity measurement plus five derived quantities).
TAB. 9.5.2: Measurement characteristics
(instrument in line with sensor)
Temperature - NTC10K Sensor
For versions …N…TC and …TV
Sensor
NTC 10 k
Ω
@ 25 °C
Measurement range
-40…+105 °C
Resolution (of instrument)
0.1
°C
Accuracy ±
0.3
°C in the range 0…+70
°C / ±
0.4
°C outside
Stability 0.1
°C/year
Temperature – Sensor integrated in RH module
For versions …TVI and the model HD35EDW1NV
Sensor
Sensor integrated in humidity module
Measurement range
-40…+105 °C
Resolution (of instrument)
0.1
°C
Accuracy ±
0.2 °C in the range 0…+60 °C
±
(0.2 – 0.05 * T)
°C in the range T=-40…0 °C
±
[0.2 + 0.032 * (T-60)]
°C in the range T=+60…+105
°C
Stability 0.05
°C/year
Temperature - Pt100/Pt1000 Sensor
For versions …7P…TC
Sensor
Pt100 / Pt1000 1/3 DIN thin film
Measurement range
-100…+350 °C max. for probes measuring only temperature
(the measurement range can be limited by the operating temperature of the
used probe)
-40…+150 °C for T/RH combined probes HP3517ETC…
Resolution (of instrument)
0.1
°C
Accuracy 1/3
DIN
Stability 0.1
°C/year
