Dewpoint Temperature: -40° to +100°C.Absolute Humidity: 0 to 600 g/m3 Wet Bulb Temperature:0 to100°C
Calculated
Variables for Model HMP235
Dewpoint Temperature: -40° to +100°C
Mixing ratio: 0 to 600g/kg d.a.
Absolute Humidity: 0 to 600 g/m3 Wet Bulb Temperature: 0 to
100°C
Calculated
Variables for Model HMP231
Dewpoint Temperature: -40° to +60°C
Mixing ratio: 0 to 600g/kg d.a.
Absolute Humidity: 0 to 600 g/m3 Wet Bulb Temperature: 0 to
60°C
SPECIFICATIONS
Customize Your
Instrument
Our unique microprocessor design and modularity allows you to customize
the HMP235 at time of purchase:
Selection
of output parameters:
Relative humidity
Mixing
ratio
Absolute humidity
Temperature
Dewpoint
Wet
bulb temperature
Selection
of:
Power supply type (24VDC/VAC; 70VAC, 220VAC)
Cable length (2, 5, or 10 meters)
Local display and keypad
Serial bus type (RS232 or 485)
Mounting flange type (aluminum or stainless steel)
Type of sensor protection (variety of filter types available)
After
purchase, you can directly program either via computer or local display
and keypad:
Units
(metric or non-metric)
The two
output parameters corresponding to analog channels 1 and 2 (note: all
output parameters selected by users are also available via serial output
and display)
Selection
of the following output signals:
4 to 20 mA
0 to 1V
0 to 20 mA
0 to 5V
0 to
10V
Scaling
of measurement parameters and output signals (e.g. -10°C to +80°C
corresponds to 1 to 5V)
RELATIVE
HUMIDITY
Measurement range
0 to
100%
Accuracy
(including non-linearity and repeatability)
Maximum
achievable when calibrated against high quality, certified humidity
standards:
±1% RH (0 to 90%
RH)
±2% RH
(90 to 100% RH)
When
calibrated against salt solutions (ASTM E104-85)
±2% RH (0-90% RH)
±3% RH
(90 to 100% RH)
Response time (90%)
at +20°C in still air (with sintered filter)
15
seconds
Sensor
HUMICAP™
H-Sensor
TEMPERATURE
Measurement
range
Model
231: -40° to +60°C (-40 to +140°F)
Model
235: up to 392°F
Accuracy
±0.1°C
Sensor
PT 100
RTD 1/3 DIN 43760B
OUTPUTS
Two analog outputs
selectable and scalable
0 to 20 mA
0 to 1V
4 to 20 mA
0 to 5V
0 to 10V
Serial output
available
RS 232C
or RS 485
On-Site,
One-Point Calibration
By utilizing a reference TH (or temperature) probe for comparison,
routine maintenance and/or calibration of the VA933001/4 can be
performed on site within a matter of minutes without disturbing
transmitter operation.
This unique one-point calibration feature will save down time, reduce
service costs, and ensure high accuracy operation.
