ROTRONIC HP23-AW-A - Manual (Page 4)

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 4 of 37
Document title
© 2009-2012; Rotronic AG E-M-HP23-V2_13
Applicability:
This manual is valid for the HP23 with firmware version 2.x, where 2.x can be 2.0, 2.1 etc. Changes to the last
digit of the version number reflect minor firmware changes that do not affect the manner in which the
instrument should be operated.
1 Overview
The HP23 is a multifunction hand-held indicator with data logging capability. The HP23 can be used in many
different applications such as the spot check measurement of HVAC installations and manufacturing
processes, the measurement of seeds, pharmaceutical powders and other materials in bulk, the measurement
of paper stacks and rolls, etc. The HP23 is also a calibrator that can be used to read and adjust other
instruments from ROTRONIC that are based on the AirChip 3000 technology.
Each of the two probe inputs can be configured to accept either a digital HygroClip 2 humidity-temperature
probes (factory default) or an analog probe measuring any signal such as barometric pressure, air velocity, etc
(user configuration). The HP23 has a real time clock to keep track of the date and time when recording data
and is powered with either a standard 9 V alkaline battery or with a rechargeable battery.
The HP23 features two distinct operating modes:
► Standard Mode:
in this mode the HP23 can be used as a general purpose indicator, as a data logger or
as a calibrator for verifying and adjusting other instruments from ROTRONIC. The standard mode offers the
following functionality (availability of some of the functions depends on the HP23 model):
 Display of Measured and Calculated Values
o Relative humidity and temperature data measured by up to two HygroClip 2 digital probes
o Calculated humidity parameter such as dew / frost point or other, for up to two HygroClip 2
probes
o Difference between the values measured by two probes (the probes must be of the same type:
digital or analog)
o Up to two user defined calculations such as the difference between the temperature and the dew
point measured by a probe, the average of the temperature measured by two probes, etc.
o Any parameter measured by up to two analog probes (user defined)
 Manual Data Capture
o To facilitate the spot checking of humidity and temperature conditions, the HP23 features eight
data bins (non-volatile memory) each capable of retaining up to 250 humidity temperature values
measured by a HygroClip 2 probe (analog probe data is not recorded). Each record is stamped
for date and time. The data bins can be given a user defined name.
o Probe selection, bin selection, data capture and data viewing are done from the keypad.
 Data Logging
o The HP23 can automatically record up to 10,000 humidity-temperature value pairs measured by
a single HygroClip 2 probe or up to 10,000 values measured by a single 1-channel analog
probe. Each record is stamped for date and time. The calculated parameter (HygroClip 2 probe
only) cannot be recorded. When recording data from two probes at the same time, the recording
capacity per probe is cut in half.
o The HP23 features two data logging mode: start-stop (recording ends when the memory is full)
and loop (when the memory is full, the oldest record is dumped to make room for a new record)
o Except for the log file format, all log settings can be selected from the keypad. Data logging can
be started and stopped from the keypad