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Appendix Specifications and Troubleshooting

52 VAISALA

Accuracy over temperature range continued:

at -40 ... 0 °C and +40 ... +80 °C

(-40 ... +32 °F and +104 ... +176 °F)

±0.4 °C (±0.72 °F)

Temperature sensor Pt1000 RTD 1/3 Class B IEC 751

Table 3: Analog Inputs

Property Description / Value

Current input signals 0-22 mA

Resolution: 0.67 µA

Accuracy:

±0.15 % F.S. at +25 °C

Input Impedance: 62 Ohms

Overload Protection: 40 mA max.

Voltage input signals 0-5 V, 0-10 V

Resolution: 0.0034% F.S.

Accuracy:

±0.15 % F.S. at +25

Input Impedance: 37K Ohms

Overload Protection: 50 volts max.

Boolean Contact input signals Open/Closed with magnetic reed switch

cable connections (Dry Contact)

Isolation One common per logger

Resistive Temperature input signal Pt 100 RTD / 4 wire

Class A IEC 751

Input Impedance: 5.1K Ohms

RTD Measurement range -196 °C to +90 °C

RTD Accuracy over temperature range

-196 to -90 +/- 2.5

°C

-90 to -30 +/- 0.75

°C

-30 to 0 +/- 0.5

°C

0 to 50 +/- 0.25

°C

50 to 90 +/- 0.75

°C

Table 2: Humicap Temperature Measurement Specifications

(with HMP110)

Property Description / Value

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 75 76

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Vaisala HMT140 Guía de usuario Pagina 60