Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type Page 2 of 14 Document title Table of contents Overview ..............................3 General description ..........................3 Power supply ............................3 Measured parameters ........................... 3 Calculated parameters ..........................
Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type Page 3 of 14 Document title Applicability: This manual is valid for the HP21 with firmware version 1.x, where 1.x can be 1.0, 1.1 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.
Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type Page 4 of 14 Document title Service connector The service connector is a UART digital interface (Universal Asynchronous Receiver Transmitter) with a mini- USB type connector.
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Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type Page 5 of 14 Document title ► Data recording The data recording function differs from a true data logging function in the sense that the AirChip 3000 does not time stamp the data.
Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type Page 6 of 14 Document title Factory default settings Notes: o Configuration of the HP21 by the user and access to its functions requires a PC with the ROTRONIC HW4 software (version 2.1.1 or higher) installed.
Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type Page 7 of 14 Document title Operation Display The LC display of the HP21 has a backlight which can be set to be on all the time or whenever a key is pressed.
Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type Page 8 of 14 Document title Internal menu Note: Unauthorized access to the menu can be prevented by disabling the “display menu” setting (use the HW4 software >...
Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type Page 9 of 14 Document title The optional HW4 software can also be used to change the unit system: Low battery indicator When the battery is down to about 20% of its initial charge, “Low Battery”...
Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type Page 10 of 14 Document title Periodic calibration check Both the Pt 100 RTD temperature sensor and associated electronics are very stable and should not require any calibration after the initial factory adjustment.
Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type Page 11 of 14 Document title Replacing the battery To replace the battery, turn the latching button counter-clockwise and pull out the battery holder.
Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type Page 12 of 14 Document title Technical data Specifications General HP21 Device type Humidity-temperature hand-held indicator with integral probe Battery type 9 V alkaline...
Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type Page 13 of 14 Document title Conformity with standards HP21 EMC Directive 2004/108/EG: EN 61000-6-1: 2001, EN 61000-6-2: 2005 CE / EMC immunity...
Rotronic AG E-M-HP21-V1_21 Bassersdorf, Switzerland Document code Unit HygroPalm HP21 hand-held indicator: Instruction Manual User Guide Document Type 14 of 14 Page Document title Accessories For accessories and parts such as the HW4 configuration software, service cables, calibration accessories and spare dust filters, please see document E-M-HC2-accessories...
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