Rotronic HygroPalm AW1 Manuel utilisateur

20020715

HygroPalm AW1

Portable Water Activity Indicator

Instruction Manual

v 3

- 2 –

______________________________________________________________________

in_hypalm_aw1_v3.doc

Contents

Overview.......................................................................................................................................... 3

General Description......................................................................................................................... 4

Power Requirements ................................................................................................................... 4

Optional Docking Station (PalmDock) ......................................................................................... 4

Display ......................................................................................................................................... 6

Keypad......................................................................................................................................... 7

Temperature Unit......................................................................................................................... 7

Operation ......................................................................................................................................... 7

Operating Modes ......................................................................................................................... 8

Mode Selection ............................................................................................................................ 8

Water Activity Measurement.......................................................................................................... 11

Water Activity: definition and applications ................................................................................. 11

General Recommendations....................................................................................................... 13

Using the AwQuick Mode ..........................................................................................................15

Using the AwE Mode ................................................................................................................. 17

Function Menu ............................................................................................................................... 18

MODE ........................................................................................................................................ 18

ADJUST M.PT (full probe calibration against a reference) ....................................................... 19

ADJUST 1PT (1-point adjustment against a reference) ............................................................ 20

SETTINGS................................................................................................................................. 22

PROBE ...................................................................................................................................... 22

SYS STATUS ............................................................................................................................ 23

Errors and Status Messages ......................................................................................................... 23

Environmental Limits ..................................................................................................................... 24

Maintenance .................................................................................................................................. 24

Specifications................................................................................................................................. 24

Appendix 1: Practical Advice for Measuring Aw............................................................................ 25

Appendix 2: Maintenance of the ROTRONIC probes.................................................................... 27

Cleaning or Replacing the Dust Filter of the Probe ................................................................... 27

Periodic Calibration Check of the Probes.................................................................................. 27

Appendix 3: Calibration Basics...................................................................................................... 28

Temperature Calibration............................................................................................................ 28

Humidity Calibration .................................................................................................................. 28

Appendix 4: Accessories and spare parts ..................................................................................... 30

Note: functions such as instrument configuration with a PC as well as the calibration of HygroClip

probes separately from the HygroPalm AW1 require the optional HW3 PC software. Instructions

for using the HW3 software are not included in this manual. These instructions are shipped

separately on the same CD ROM as the HW3 software.

About the version number: this manual is valid for all instruments with version number 3.x,

where 3.x can be 3.0, 3.1, etc. (see MENU, SYS STATUS). Changes in the last digit of the

version number reflect minor changes in the internal software of the instrument that do not affect

the manner in which the instrument should be operated.

- 3 –

______________________________________________________________________

in_hypalm_aw1_v3.doc

Overview

The HygroPalm AW1 is a portable water activity and temperature indicator that is available with

probes of different configuration for measuring product samples, materials in bulk such as

powders, seeds, etc., packaging materials, etc.

In addition to the basic function of indicating water activity and temperature (standard operating

mode), the HygroPalm AW1 features two operating modes that are especially useful when

measuring water activity:

AwQuick mode: permits measuring the water activity of most products in typically 5 minutes. The

measurement is ended automatically.

AwE mode: same as the standard operating mode with the difference that the HygroPalm AW1

automatically detects equilibrium conditions and ends the measurement at that time.

The HygroPalm AW1 operates with a regular 9V alkaline battery or with a rechargeable 9V

battery. The optional docking station makes it possible to use the HygroPalm AW1 as a table top

indicator and to power it with an AC adapter.

Main features:

-indication of water activity and temperature

-AwQuick mode: accelerated water activity measurement (typically 5 minutes)

-AwE mode: conventional water activity measurement

-automatic indication of measurement end

-single probe input, compatible with any ROTRONIC HygroClip digital probe

-software-based probe calibration (1-point or multi-point) directly from keypad

-temperature unit (qC or qF) selectable from keypad

HygroPalm AW1 Docking Station (PalmDock)

- 4 –

______________________________________________________________________

in_hypalm_aw1_v3.doc

General Description

Power Requirements

The HygroPalm AW1 operates with a regular 9V alkaline battery or with a 9V rechargeable

battery.

Important: the HygroPalm AW1 is shipped with a regular 9V battery and is factory preset with the

battery charge function turned off. If you plan on using a rechargeable battery (requires docking

station), you should turn on the battery charge function (see Function Menu – Settings). Before

using a regular battery again, be sure to turn off the battery charge function. Trying to charge a

regular battery may cause the battery to burst and may damage the instrument.

Optional Docking Station (PalmDock)

The HygroPalm AW1 is available with an optional docking station. The docking station accepts an

external AC adapter. When the HygroPalm AW1 is equipped with a rechargeable battery, the

docking station can be used to recharge the battery (after turning on the battery charge function –

see settings). The RS232 port of the docking station is not used with the HygroPalm AW1 (this

port is used with other models of HygroPalm).

HygroClip Digital Probes

The ROTRONIC HygroClip digital humidity temperature probes permit to take full advantage of all

the features and functions of the HygroPalm AW1. These probes are highly accurate and are

calibrated entirely by means of software (no adjustment potentiometers). Because calibration and

other data are stored in the probe non-volatile memory, the probes are fully interchangeable.

When a probe requires calibration or has to be repaired, it can be replaced with another probe in

a few seconds.

The ROTRONIC HygroClip digital probes are available in different configurations so as to permit

different types of water activity measurement:

Power supply, 3.5mm Jack female

AC adapter 12 to 15 VDC, 100 mA

RS Sub-Mini 9-pin

Connection cable (PC to docking station)

part # RS232 9pol ST-BU

Pin Function

2 Tx

3 Rx

5 GND

RS232 connector

PC side

- 5 –

______________________________________________________________________

in_hypalm_aw1_v3.doc

Small product samples: AW-DIO and AwVC-DIO probe

The AW-DIO and AwVC-DIO probes require the use of a sample holder. Sample holders are

available in two sizes: 14 and 40 mm deep. Disposable sample cups are used to collect samples

and to prevent contamination between samples.

Note: all of the following probes have a DAT-05 connector and require an adapter cable

MOK-01-B5 for connection to the HygroPalm AW1 (see Appendix 4: Accessories).

Materials in bulk: HP28 insertion probe

This probe is used to measure seeds, barrels of pharmaceutical powders, etc.

Shipping containers and other tight spaces: SC05 miniature probe

Both probes are physically the same with the

difference that the AwVC-DIO incorporates a small

fan to ventilate the product sample. This can be

beneficial when measuring chunky product samples.

Both probes have a B5 connector and can be directly

connected to the HygroPalm AW1.

- 6 –

______________________________________________________________________

in_hypalm_aw1_v3.doc

Packaging materials (stacks/rolls of paper and cardboard): HS28 Sword probe

Display

The LC display shows the water activity and temperature by the probe, with the associated

engineering unit. When relevant, the message line provides additional information.

The display provides information regarding the battery status. When the message Low Batt

appears, the instrument can typically be used for another 10 to 15 minutes.

Water Activity and Temperature

Probe Input

(1 is the only input used)

Engineering

Unit

Active Mode and

Message Line

Trend Indicator

End of

Measurement

Indicator

- 7 –

______________________________________________________________________

in_hypalm_aw1_v3.doc

Keypad

Temperature Unit

The temperature unit of the HygroPalm AW1 (qC or qF) is easily changed from the instrument

keypad (see Settings).

Operation

Connect a probe to the HygroPalm AW1 and press on the ON/OFF key. After a brief test and

introductory message, the instrument defaults to the “standard” mode (see Operating Modes).

Measurements appear on the LC display and are updated to the display every 0.75 sec.

HOLD function: to freeze the measurements (Standard Mode only) press briefly on the ON/OFF

key. Press again briefly on the key to return to normal operation.

ON/OFF: Turns the instrument on or off and also

controls the HOLD function. This key has no

effect when either the AwQuick or the AwE

operating mode is running.

MENU : Press this key to enter the Function Menu

and select the operating mode, etc. The

different menu items appear on the LCD

message line. Press this key again to exit

the menu

UP / DOWN: When the menu is active, use these keys to

navigate the menu, make a selection or to

change a number

ENTER: Use this key to start and stop either the

AwQuick or the AwE operating mode

(if already selected from the Function Menu).

When the menu is active, press this key to

confirm a selection.

Connector for HygroClip digital probe

- 8 –

______________________________________________________________________

in_hypalm_aw1_v3.doc

Operating Modes

The HygroPalm AW1 has 3 operating modes:

xStandard Mode: this mode is the default mode of the HygroPalm AW1. It is used for calibrating

the probe above a reference humidity standard or to measure the full equilibration of a product

(conventional water activity measurement). Both typically require from 30 to 60 minutes.

In the standard mode, the HygroPalm AW1 displays the water activity and temperature measured

by the probe. Trend indicators appear one minute after powering up the instrument (up or down

arrow to the left of the water activity and temperature values). These indicators are used to detect

equilibrium conditions as required during probe calibration. The probe is at equilibrium when both

the up and down arrow are displayed at the same time.

Upon powering the HygroPalm AW1, the instrument automatically defaults to the standard mode.

If either the AwE or the AwQuick mode have been selected (see mode selection), the HygroPalm

goes into the AwE or AwQuick mode as soon as the ENTER key is pressed. When neither the

AwE mode nor the AwQuick mode are running, the HygroPalm AW1 returns temporarily to the

standard mode.

xAwE mode: this mode is essentially the same as the standard mode with the difference that the

HygroPalm AW1 automatically detects equilibrium conditions and ends the measurement at that

time by freezing the display.

xAwQuick mode: this mode accelerates the water activity measurement and provides a result in

typically 5 minutes. When temperature conditions are stable (both at the product and probe), the

measurement obtained with the AwQuick mode is generally within ± 0.005 aw of the

measurement that would be obtained by waiting for full equilibration of the product and probe.

Mode Selection

Note: upon being powered up, the HygroPalm AW1 remembers the last mode that was selected.

The operating mode of the HygroPalm AW1 is selected from the Function Menu. To select any of

the 3 modes, proceed as follows:

-press the MENU key

-use the UP or DOWN arrow to display MODE on the LC display

-press the ENTER key to select the MENU function

-use the UP or DOWN arrow to display the desired mode

-press the ENTER key to select the mode

Depending on the mode that was selected, proceed as follows

a) Standard Mode:

No further action is required after selecting this mode. Simply proceed with the measurements.

- 9 –

______________________________________________________________________

in_hypalm_aw1_v3.doc

b) AwE Mode:

Upon selecting this mode, the HygroPalm AW1 displays the following:

0. 0 0 0 1

E H S [ A w / m i n ]

Use the UP or DOWN arrow to set the definition of stable humidity. In the above example, the

HygroPalm AW1 will consider humidity to be at equilibrium when the rate of change of the

humidity signal is less than 0.0001 Aw per minute. Default value: 0.0001 Aw / min

Press the ENTER key to record and confirm this setting. The display now shows the following:

0. 0 1

E T S [

C / m i n ]

Use the UP or DOWN arrow to set the definition of stable temperature. In the above example, the

HygroLab will consider temperature to be at equilibrium when the rate of change of the

temperature signal is less than 0.01 qC per minute. Default value: 0.01 qC / min

Press the ENTER key to record and confirm this setting. The AwE mode is now active.

When ready to measure, press the ENTER key to access and start the AwE mode. Press the

ENTER key again to stop the AwE mode at any time and return to the Standard mode.

Notes:

When the HygroPalm AW1 is in the AwE mode, pressing the ENTER key automatically starts

the AwE mode, unless the MENU key was pressed immediately before pressing the ENTER

key.

The ON / OFF key is inoperative in the AwE mode. You must stop the AwE mode in order to

be able to turn the power of with the red ON/OFF key.

For instructions on using the AwE mode, see Water Activity Measurement.

- 10 –

______________________________________________________________________

in_hypalm_aw1_v3.doc

c) AwQuick Mode:

Upon selecting this mode, the HygroPalm AW1 displays the following:

Q D w e l l [ m i n ]

Use the UP or DOWN arrow to set the dwell time. In the above example, the HygroPalm AW1 will

wait 4 minutes before processing the humidity data with the AwQuick algorithm.

Default value: 4 min (recommended value)

Press the ENTER key to record and confirm this setting. The display now shows the following:

0. 0 1

Q T S [

C / m i n ]

Use the UP or DOWN arrow to set the definition of stable temperature. In the above example, the

HygroPalm AW1 will consider temperature to be stable when the rate of change of the

temperature signal is less than 0.01 qC per minute.

Default value: 0.01 qC / min

Press the ENTER key to record and confirm this setting. The AwQuick mode is now active.

When ready to measure, press the ENTER key to access and start the AwQuick mode. Press the

ENTER key again to stop the AwQuick mode at any time and return to the Standard mode.

Notes:

When the HygroPalm AW1 is in the AwQuick mode, pressing the ENTER key automatically

starts the AwQuick mode, unless the MENU key was pressed immediately before pressing

the ENTER key.

The ON / OFF key is inoperative in the AwQuick mode. You must stop the AwQuick mode in

order to be able to turn the power of with the red ON/OFF key.

For instructions on using the AwQuick mode, see Water Activity Measurement.

Table des matières

Autres manuels Rotronic Écran tactile

Rotronic

Rotronic HygroPalm HP22 Manuel utilisateur

Manuels Écran tactile populaires d'autres marques

FlowLine

FlowLine Data loop Manuel utilisateur

ALPEX

ALPEX AEx-8 P Series Manuel utilisateur

Ltech

Ltech E5S Manuel utilisateur

Harman

Harman AMX MODERO S MSD-701-L2 Manuel utilisateur

Acnodes

Acnodes PC 1150 Manuel utilisateur

AIS

AIS IP10IA99 series Manuel utilisateur

IBASE Technology

IBASE Technology ASTUT-152-RE1S Manuel utilisateur

YASKAWA

YASKAWA TP 610C Manuel utilisateur

B&R

B&R Power Panel C Series Manuel utilisateur

Beijer Electronics

Beijer Electronics X2 control Manuel utilisateur

AXIOMTEK

AXIOMTEK GOT321W-521 Manuel utilisateur

TRIDONIC.ATCO

TRIDONIC.ATCO x-touchBOX Manuel utilisateur

Qomo

Qomo QIT1386 Manuel utilisateur

DFI

DFI KS104-CD Manuel utilisateur

AMX

AMX AXP-PPC Mode d’emploi

Sartorius

Sartorius X3 PR 5410 Manuel utilisateur

AMX

AMX Modero X Series Manuel utilisateur

Advantech

Advantech TPC-30 Series Manuel utilisateur