ROTRONIC HP23-AW-A User Manual
Page 34
E-M-HP23-V2_13
Rotronic AG
Bassersdorf, Switzerland
Document code
Unit
HygroPalm HP23-A / HP23-AW-A hand-held
indicator:
User Guide
Instruction Manual
Document Type
Page
34 of 37
Document title
© 2009-2012; Rotronic AG E-M-HP23-V2_13
Calculated parameters
HP23
Psychrometric calculations
Dew point (Dp) above and below freezing
Frost point (Fp) below freezing and dew point above freezing
Wet bulb temperature (Tw)
Enthalpy (H)
Vapor concentration (Dv)
Specific humidity (Q)
Mixing ratio by weight (R)
Vapor concentration at saturation (Dvs)
Vapor partial pressure (E)
Vapor saturation pressure (Ew)
Start-up time and data refresh rate
HP23
Start-up time
3 s (typical)
Data refresh rate
1 s (typical)
Functions
HP23
Delta Probe or User defined
parameter
o
%RH, temperature and calculated parameter difference (probe 1
less probe 2). This is available only when the calculation of a
user defined parameter is not enabled.
o
Using the HW4 software, the HP23 can be set to calculate up to
two user defined parameters
Data capture
o
Manual data capture of %RH and temperature + date and time
stamp (HygroClip 2 probe only)
o
8 separate data bins (each can be given a specific name with
the HW4 software)
o
Up to 250 records per data bin
Data logging
o
Configurable log interval (from 5 sec to 1 hour)
o
Start-Stop or Loop mode
o
Up to 10,000 RH+T records for a single HygroClip 2 probe
o
Up to 10,000 records for a single 1-channel analog probe
o
Each data record is given a date and time stamp
o
Recording capacity per probe is cut in half when two probes are
being simultaneously recorded
Calibrator
o
Can be used to calibrate and adjust HygroClip probes,
transmitters and other devices based on the AirChip 3000
technology
o
Fully fledged calibration and adjustment function
o
Calibration against reference probe or reference environment
Water activity measurement
o
Conventional water activity measurement
o
Accelerated water activity measurement
o
Automatic end of measurement
Simultaneous measurement of two probes (HygroClip 2 only)
Service connector
HP23
Interface type
USB
Maximum service cable length
5 m (16.4 ft)