PCE Instruments RH5 User manual

User Manual

RH5 Humidity Measuring Device

with Sword Sensor

Version 1.0_en

2016

page 2

User Manual

Positioning the instrument

Insert the sword-sensor into the stack for only approx. 10 cm, and push it a

few more centimetres into the stack every 10 seconds. Let your RH5

adequately adjust to the material (at least 5 minutes) before you start to

measure, particularly when the material pile was stored at adifferent

temperature than the device. When removing the sword-shaped sensor

please ensure that there is no up or down movement, because this could

deform the sensor. For heavy stacks and rolls please use the optionally

available sword sensor holder and the tool for removing the sword sensor

holder.

Measurement

To switch on the instrument, press the key for

three seconds.

After showing the logo, the measuring window opens and

the current temperature and moisture value is displayed.

In the type selection menu the calibration curves can be

changed by pressing or . The calibration curves

saved in the device can be found in the following list.

List of calibration curves

calibration curve description unit measuring

range

rel. humidity relative humidity of air %RH 0 to 100%

dewpoint dewpoint

°C

°F

-55 to +60°C

resp.

-67 to 140°F

page 3

Description of definitions

Relative air humidity: indicates the relation between the current water

vapour pressure and the maximal possible water vapour pressure (called

saturation vapour pressure)

The relative humidity shows the degree the air is saturated with water

vapour. For example:

50% relative humidity indicates that at the current temperature and the

current pressure the air is saturated with water vapour for half of its value,

100% relative humidity means that the air is totally saturated. When the air

has more than 100% of relative humidity, the excessive moisture would

condense or form fog.

Dew point temperature: The dew point indicates the temperature that the

not completely saturated air has to reach in order to be completely saturated

with water vapour. If the room with the current relative humidity is cooled

down to the dew point temperature, the water vapour begins to condense.

Application range

Within the normal application range (normal range) the accuracy of the

device is as indicated. A long-term application beyond the normal application

range (max. range), particularly at an air humidity of more than 80%, can

lead to higher measuring errors (+3% after 60 hours). Back in the normal

application range, the sensor will return to the indicated accuracy

automatically.

page 4

Design of the device

batteries slot

(flipside)

measuring value

calibration

curve

ON/OFF button

temperature

selection of

calibration curves

air humidity and

temperature sensor

Option:

interface

page 5

Menu level overview

Type selection menu

Store menu

Main menu

Next calibration curve

Previous calibration curve

Power off

Show last log

Store new log

Power off

Switch lower

Switch upper

Open this menu/enter

Keypad symbols

Measuring window:

Rolling Menu

Power ON / OFF

Switch upper

Switch lower

Save

Hold

Autolog

Watch saved data

Enter suppliers

data

Menu:

Enter

Switch upper

Switch lower

Exit

Enter numbers

Enter letters

Next or right

Left

Yes

Shift

Edit Logs

Manual Logs

Auto Logs

Clear Logs

Print Logs

Last Logs

All Logs

Clear Logs

Send Logs

Manual Logs

Auto Logs

Clear Logs

Options

Date/Time

Datalog Time

Language

Unlock

°C/°F

User level

BL On Time

Auto Off Time

Calibrate

Materialcalib.

Adjust

Password

Reset

Status

page 6

Operating the instrument

Switching on: Pressfor three seconds.

Changing the calibration curve: or .

Setting date and time: 2 times - Options – date / time

Set date and time using the button , according to the format indicated

(JJ.MM.TT). After entering the year, press the button for entering the

month and again for entering the day. For changing from date to time also

press the button . After finishing, press for saving the entered data.

Datalog: Select your desired interval in the menu Options – Log Time using

the arrow keys, and confirm by pressing OK. Now in the store menu appears

the symbol . By pressing this symbol you can activate the

AutoLog.

Info: In order to save battery power the device switches off

automatically at a log interval of 1 minute or longer, and activates again

for saving the logs!

For completing the AutoLog, switch on the device (if necessary) and press

the button. If you want to add supplier´s data please press the

button. Supplier´s data can also be entered on the PC subsequently.

Switching on the display lighting: Press the key briefly; the display

lighting switches off automatically after approx. 20 seconds. Pressing any

key activates the display lighting again, and the period for switching off again

is prolonged to four minutes (The display lighting time can be modified in

menu level Options – BL On Time).

Switching off: Press the key for five seconds. The instrument switches

off after releasing the key. The instrument switches off automatically after

approx. four minutes. (The turn-off time can be modified in menu level

Options – Auto Off Time).

Other instrument functions – overview

Manual saving of single measuring values in a measurement series

Display of measuring series and measuring values directly on the

instrument

Printing the saved measuring series (only with PC interface and printer)

Transfer and saving of measuring series on a PC (only with PC

interface)

Automatic single-point adjustment at 50% humidity standard

Selection of menu language (DE, EN, FR, IT, ES, RU)

Display of temperature in Celsius or Fahrenheit

page 7

Transfer saved data to the PC

To send your saved logs to the PC, connect

the device to your PC using the USB cable that

was delivered with your device. Carefully

loose the protection cap on your device and

plug in the USB mini B connector. The

bigger connector has to conntected to a USB slot

on your PC.

Start the software on your PC and switch on your

RH5.

The data transfer can be started on

your device or on the software:

Starting data transfer on the device:

Press the key until you reach the menu (see

image on the right). Then choose „Send Logs“ and

confirm by pressing the key. Now choose

„Manual Logs“ or „Auto Logs“ and confirm with

again. All saved logs will be transferred to your

PC.

Starting data transfer on the PC:

Press the button „remote control“ in the

software. A drop-down menu with several

options opens (see image

below).

For transferring the data you can select „Import

last manual log“ (the last saved measuring series

is transferred) or „Import all manual logs“ (all

saved logs are

transferred.

If you click on one of these menu items, the

transfer starts immediately.

For the basic adjustments of the software please

look through the instructions on the CD.

page 8

Print saved data

To print your saved data, connect the device to the

printer using the printer cable that was

delivered with your device: Carefully loosenthe

protection cap on the RH5. At first plug in the side

of the connector with the close plastic casing

at the RH5. Then switch on the device.

Not till then the other side of the cable has to be

plugged in at the printer. Switch on the printer

by pressing . Now the green LED is blinking.

If it does not blink, please change the batteries

and try again.

Press the button at your device until you

reach the menu (see image on the right). Choose

„Print Logs“ and confirm by pressing .

Now you can select if you want to print the last

saved measuring series or all saved measuring

series (logs).

Confirm by pressing again. The selected logs

are printed out now.

Info: To save paper, please think of clearing the data storage regularly.

page 9

Single-point adjustment with 50% humidity standard

For the adjustment the appropriate calibration equipment as well as

calibration ampoules resp. humidity standards of 50 % r.h. are required.

Proceedings

Preparation

To ensure as good as possible inspection results it is essential that the

measuring device, the calibration equipment and the calibration ampoules

have approximately the same temperature.

This temperature has to be between 20°C and 26°C.

The best way to ensure the same temperature of the different components is

to store all components together in a room with only small temperature

fluctuations minimum over night – better for 24 hours.

Components of calibration equipment

In this image you can see the components of the

calibration equipment and a calibration ampoule

with humidity standard.

Assembly of calibration equipment

1. Put in the first gasket ring in the upper part of

the calibration device.

2. Push in the sword sensor in the upper part as shown in the picture.

3. Now put the second gasket ring into the upper part.

4. Lay in the textile pad in the bottom part of the calibration device, and

pour the humidity standard carefully at the textile pad.

page 10

5. Now put the third gasket ring into the bottom part.

6. Fit the metal ring on the third gasket.

7. Take the upper part with the RH5 and attach these carefully at the

bottom part of the calibration device.

8. Pick up the RH5 together with the calibration device STRAIGHT and

DON´T TURN IT AROUND. Screw it up like shown in the picture.

Then put the RH5 with the calibration device down on a table carefully and

proceed as follows:

Conditioning the sensor

To achieve best results, let the sensor adjust for two hours.

The temperature has to be between 20°C and 26°C.

If the shown measuring value differs more than the factory tolerance(1.5%

r.h.), we recommend to carry out a recalibration as follows.

Offset adjustment

1. Leave the measuring device in the calibration equipment, and switch it

on.

2. Press the Rolling Menu button until you reach the main menu.

3. Select the menu item Options by pressing the button and confirm by

pressing .

4. Navigate to Ajust using the button and confirm by pressing again.

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