User guide

E-M-HP22-V2_13
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
HygroPalm HP22-A hand-held indicator:
User Guide
Instruction Manual
Document Type
Page
14 of 16
Document title
© 2010-2012; Rotronic AG E-M-HP22-V2_13
6 Firmware updates
Firmware updates will be available on the ROTRONIC website for downloading. Firmware files are given a
name that shows both to which device the file applies and the version number of the firmware. All firmware
files have the extension HEX.
NOTE: the PCB of the HP22 has been modified at the same time as firmware version 2.0 was released.
Instruments with the previous PCB can be updated from firmware version 1.x to firmware version 2.x. but the
HOLD function will not work.
Procedure for updating the firmware:
• Use cable AC3006 to connect the service connector of the HP22 to a USB port of a PC with the
ROTRONIC HW4 software installed. Note that the ROTRONIC USB driver must be installed on the
PC as explained in the HW4 manual E-M-HW4v3-Main.
• Copy the firmware update file from the ROTRONIC website to the PC.
• Start HW4 software on the PC and search for the HP22 (HW4 Main Menu Bar > Devices and Groups
> Search for USB Masters).
• After finding the HP22, expand the device tree to see the HP22 functions. Select Device Manager. In
the Device Manager menu bar select Tools > Firmware Update. For instructions see document
E-M-HW4v3-F2-006
7 Technical data
7.1 Specifications
General
HP22
Device type
Humidity-temperature hand-held indicator with one probe input (HygroClip 2)
Battery type
9 V alkaline
Low battery indication
Yes
Humidity and temperature
measurement
See document E-M-HC2 Probes > Specifications
Calculated parameters
HP22
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
HP22
Start-up time
3 s (typical)
Data refresh rate
1 s (typical)