Chapter 7 _____________________________________________________ Technical specifications
VAISALA _______________________________________________________________________ 49
CHAPTER 7
TECHNICAL SPECIFICATIONS
Water activity
Measurement range 0...1 (@-40...+180 °C/ -40...+356 °F)
Accuracy (including nonlinearity and repeatability)
When calibrated against salt solutions (ASTM E104-85):
±0.02 (0...0.9)
±0.03 (0.9...1.0)
When calibrated against high-quality, certified humidity standards:
±0.01 (0...0.9)
±0.02 (0.9...1.0)
Response time (90 %) at +20 °C in
still oil (stainless steel filter) 10 min
Humidity sensor HUMICAP
®
180 L2
Temperature
Measurement range -70...+180 °C (-94...+356 °F)
Typical accuracy at +20 °C (+68 °F) ±0.1 °C (±0.18°F)
Typical temperature dependence of electronics ± 0.005 °C/°C (±0.003°F/°F)
Temperature sensor Pt 100 RTD 1/3 Class B IEC 751
Electronical connections
Two analog oputputs 0...20 mA or 4...20 mA (selectable and
scalable)
Typical accuracy of analog output at + 20 °C(+68 °F) 0.05 % FS
Typical temperature dependence of analog outputs 0.005 %FS/°C (0.003 %F/°F)
Serial output RS232C
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