Property | Description/value |
---|---|
Relative humidity | |
Measurement range | 0 … 100 %RH |
Accuracy at +23 °C (+73.4 °F) 1 |
±0.8 %RH (0 … 90 %RH) |
Factory calibration uncertainty 2 |
±0.5 %RH (0 … 40 %RH) ±0.8 %RH (40 … 95 %RH) |
T63 response time | 15 s |
Sensor options | HUMICAP® R2 HUMICAP® 180L2 3 |
Temperature | |
Measurement range | −70 … +180 °C (−94 … +356 °F) |
Accuracy at +23 °C (+73.4 °F) 1 |
±0.1 °C (±0.18 °F) |
Factory calibration uncertainty 2 | ±0.1 °C (±0.18 °F) at +23 °C (+73.4 °F) |
Sensor | Pt1000 RTD Class F0.1 IEC 60751 |
Other available measurement parameters | |
Dew point temperature, dew point / frost point temperature, absolute humidity, mixing ratio, wet-bulb temperature, water concentration, water vapor pressure, water vapor saturation pressure, enthalpy, dew point temperature difference, absolute humidity at NTP, water mass fraction, relative saturation, water activity, water concentration in mineral transformer oil, water concentration in JET A-1 fuel, saturation temperature 4 |
Humidity measurement accuracy specified for dew point temperature of max. 95 °C ( 203 °F).
HUMICAP® 180L2 sensor option
The HUMICAP® 180L2 sensor is used in the HMP378F and HMP378H probe variants that are intended for oil and JET A-1 fuel measurements.
Property | Description/Value |
---|---|
Water activity | |
Measurement range | 0 … 1 aw 5 |
T90 response time 6 | 10 min |
Sensor | HUMICAP® 180L2 |
Accuracy 7 |
±0.01 aw (±1 %RS) |
Factory calibration uncertainty |
±0.6 %RH (0 … 40 %RH) ±1.0 %RH (40 … 95 %RH) |
Temperature | |
Measurement range | −40 … +180 °C (−40 … +356 °F) |
Accuracy at +20 °C (+68 °F) | ±0.2 °C (0.36 °F) |
Property | Value |
---|---|
JET A-1 fuel ppm accuracy (HMP378H) 8 | ±15 % of the reading (typical) |
Moisture in transformer oil ppm accuracy (HMP378F) 9 | ±10 % of the reading (typical) |
Property | Description/value |
---|---|
Operating temperature for electronics | -40 … +60 °C (-40 … +140 °F) |
Operating temperature with display | -20 … +60 °C (-4 … +140 °F) |
Storage temperature | -40 … +70 °C (-40 … +158 °F) |
Pressure range | See probe specifications |
Property | Description/value |
---|---|
EMC compatibility |
EN 61326‑1, industrial environment |
Compliance marks |
CE, China RoHS, RCM |
Property | Description/value |
---|---|
Operating voltage |
12 – 28 V |
Analog outputs |
2 outputs (two-wire, 4 – 20 mA) Connection via safety barriers |
Typical accuracy of analog outputs at +20 °C | ±0.0625 % full scale |
Typical temperature dependence of analog outputs | 0.005 % / °C (0.005 % / °F) full scale |
Transmitter service port connection | USB cable 219690 |
Probe service port connection | USB cable USB2 |
Display options |
|
Property | Description/value |
---|---|
Connections | Screw terminals, 0.33 … 2.0 mm2 wires (AWG 14-22) |
Cable glands | M20 x 1.5 |
Conduit fitting | NPT 1/2" and M16 |
Housing material | EN AW-6082 |
Housing weight |
Transmitter with LCD display: 1500 g (3.3 lb) Transmitter with LED indicator: 1520 g (3.35 lb) HMP371 fixed probe: 320 g (0.7 lb) |
IP rating |
IP66: Dust-tight. Protected from powerful water jets from any direction. |
NEMA rating |
NEMA 4: Dust-tight. Protected from powerful water jets from any direction. |