PCE Instruments RH5 User manual

User Manual
RH5 Humidity Measuring Device
with Sword Sensor
Version 1.0_en
© PCE Instruments
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
or
°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
No
Shift
OK
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.