Schaller RHL User manual

78,0°F | 6,16% | 456kg/m
3
| -27,3td | 0,64aw | 51,9%r.H. | 14,8%abs | 100,4g/m
2
| 09m/s | 4,90Ugl | 1
User manual
Always read this user manual before using the humimeter RHL!
humimeter RHL
Grain moisture meter
for measurements in the grain storage or grain silo
Moisture meter
Version 1.1

humimeter RHL grain moisture meter with data log user manual
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Overview of your humimeter RHL
Overview basic unit
No Name
1 Connection for sensors
2 USB interface (optional)
3 Display
4 Keypad
5 Rubber protection
3
1
2
4
5

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Overview back side
No Name
1 Battery case
Overview external sensor
No Name
1 Sensor connector
2 Sensor head with removable cap
3 Handle
1
2
3
1

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Measurement Measuring range Resolution
aw value 0 to 1 0.001 aw
rel. humidity 0 to 100 % RH 0.1 %
abs. humidity 0 to 130 g/m³ 0.1 g/m³
grain moisture
10 to 18 % WC
0.1 %
Calibration 10 to 90 % RH
Temperature °C -20 °C to +120 °C 0.1 °C
Temperature °F -4 °F to 248 °F 0.2 °F
Overview display
No Name
1 Product type
2 Humidity value (definition see "7.1 Definition
of product type")
3 Display symbols
4 Temperature display
Overview display symbols
Symbol Name Symbol Name
Enter No
Up Change input level
Down OK
Back Change menu
1
2
4
3

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Enter numbers Enter data
Enter letters View measurements
Forward / Right Delete measurements
Left On/Off display light
Yes Save measured value
Save Auto Log Hold function
Overview menus
The device has three different menus: product selection, Data Log and main menu:
Product selection
No Name
1 Change menu
2 Display illumination / device on/off
3 Navigate between product types
21 3

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Data Log menu
No Name
1 Change menu
2 Turn on display light/ turn off device
3 Save measurements
4 View last saved measurements
Main menu
The main menu includes the following menu items:
• Data Log:
Manual Logs, Auto Logs, Clear Logs
• Print Logs:
Last log, All logs, Delete logs
• Send Logs:
Manual logs, Auto logs, Delete logs
• Options:
Bluetooth, Date/Time, Log Time, Emission ratio, Language, Unlock, °C/°F, BL On
Time, Off Time, Calibrate, Materialcalib., Online Send, Password, Reset
• Status
21 3 4

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Inhaltsverzeichnis
Overview of your humimeter RHL ����������������������������������������������� 2
Overview basic unit ..................................................................................................2
Overview back side ..................................................................................................3
Overview external sensor ......................................................................................... 3
Overview display ......................................................................................................4
Overview display symbols .........................................................................................4
Overview menus ......................................................................................................5
1� Introduction ������������������������������������������������������������������ 11
1.1 Information on this user manual ........................................................... 11
1.2 Limitation of liability .............................................................................. 11
1.3 Symbols used in this manual .................................................................12
1.4 Customer service .................................................................................12
2� For your safety �������������������������������������������������������������� 13
2.1 Proper use ............................................................................................13
2.2 Improper use ........................................................................................13
2.3 User qualications ................................................................................. 13
2.4 General safety information .................................................................... 14
2.5 Warranty .............................................................................................. 14
3� First steps ��������������������������������������������������������������������� 15
3.1 Unpacking the device ...........................................................................15
3.2 Checking the delivery content ..............................................................15
3.2.1 Scope of supply ....................................................................................15
3.3 Inserting the batteries ...........................................................................16
4� Using the device - Basics ���������������������������������������������� 16
4.1 Turn on the device ................................................................................16
4.2 Selecting the product type ....................................................................17
4.3 Exchanging the sensor ..........................................................................17

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4.4 Performing a measurement ...................................................................17
4.5 Turning off the device ...........................................................................17
5� Measurement ���������������������������������������������������������������� 18
5.1 Preparing a measurement ....................................................................18
5.2 Performing a measurement ...................................................................18
5.3 Adjustment behaviour of the sensor ...................................................... 20
6� Memory function ���������������������������������������������������������� 21
6.1 Hold function - Freezing the displayed values .......................................21
6.1.1 Activate the Hold function in the options .............................................. 21
6.1.2 Using the Hold function ........................................................................21
6.2 Manual memory function ...................................................................... 22
6.2.1 Saving individual readings .....................................................................22
6.2.2 Saving several readings (measurement series) ........................................ 24
6.3 Auto save function (time-based) ............................................................ 25
6.3.1 Activating the Auto save function in the Options menu ......................... 25
6.3.2 Auto save function: Saving measured values ......................................... 25
6.4 Viewing individual readings ................................................................... 26
6.5 View individual measured values of a measurement series ..................... 27
6.6 Delete all measured values (data log) .................................................... 27
6.7 Delete single measurement series .......................................................... 28
6.8 Deleting individual values from a single series of measurements ............ 29
7� Product types ���������������������������������������������������������������� 30
7.1 Denition of product type .....................................................................30
7.2 Denition water activity .......................................................................31
7.3 Application range .................................................................................33
8� Using the LogMemorizer program ������������������������������ 34
8.1 Installing/opening the program ............................................................34
8.2 Send values to PC .................................................................................34

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9� Checking the device’s status ���������������������������������������� 37
10. Conguringthedevice������������������������������������������������ 38
10.1 Bluetooth settings .................................................................................38
10.2 Set date/time .......................................................................................38
10.3 Setting the emission ratio ...................................................................... 39
10.4 Selecting a language ............................................................................39
10.5 Unlock options ......................................................................................39
10.6 Lock options .........................................................................................40
10.7 Set °C/°F ...............................................................................................41
10.8 Power saving mode setting ...................................................................41
10.8.1 Display illumination setting ................................................................... 41
10.8.2 Automatic power off setting ("Auto Off Time") .................................... 41
10.9 Calibrating the device ..........................................................................42
10.10 Sort calibration setting ..........................................................................42
10.11 Online Send ..........................................................................................42
10.12 Changing the password ........................................................................43
10.13 Resetting the device to its factory settings ............................................. 44
11� Cleaning and maintenance ������������������������������������������ 44
11.1 Changing the batteries ......................................................................... 44
11.2 Care instructions ...................................................................................45
11.3 Cleaning the device .............................................................................45
12� Checking the calibration ���������������������������������������������� 45
12.1 Determining the deviation ..................................................................... 45
13� Faults ����������������������������������������������������������������������������� 46
14� Storage and disposal ���������������������������������������������������� 48
14.1 Storing the device .................................................................................48
14.2 Disposal of the device ...........................................................................48

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15� Device information ������������������������������������������������������� 49
15.1 EC declaration of conformity ................................................................. 49
15.2 Technical Data .......................................................................................53
16� Notes ����������������������������������������������������������������������������� 54

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1. Introduction
1.1 Information on this user manual
This user manual enables safe and efficient use of the RHL humimeter. The user manual
is an essential part of the device and must be kept close to the humimeter and be
accessible to the user at any time.
Before starting any work, the user must carefully read and understand this manual.
Basic requirement for safe work is to follow all safety and handling instructions speci-
fied in this user manual.
1.2 Limitation of liability
All of the information and instructions provided in this user manual have been compi-
led on the basis of the current standards and regulations, the state of the art, and the
extensive expertise and experience of Schaller Messtechnik GmbH.
Schaller Messtechnik GmbH does not accept any liability for damages associated with
the following, which also voids the warranty:
• Non-observance of this user manual
• Improper use
• Inadequately qualified users
• Unauthorised modifications
• Technical changes
• Use of unapproved spare parts
This fast measuring procedure can be affected by a range of different factors.
We, as the manufacturer, do not accept any liability for any incorrect measurement and
associated consequential damage.

humimeter RHL grain moisture meter with data log user manual
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1.3 Symbols used in this manual
All safety instructions in this user manual are identified by symbols.
ATTENTION
Non-observance can lead to physical damage.
iInformation
This symbol indicates important information that enables users to use the de-
vice more efficiently and cost effectively.
WARNING
In case of non-observance, light or medium injuries can occur.
1.4 Customer service
For technical advice, please contact our customer service department at
Schaller Messtechnik GmbH
Max-Schaller-Straße 99
A - 8181 St.Ruprecht an der Raab
Telefon: [phone]
Fax: [phone] - 901
E-Mail: [e-mail]
Internet: www.humimeter.com
© Schaller Messtechnik GmbH 2022

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2. For your safety
The device complies with the following European directives:
• Restriction of Hazardous Substances in Electrical and Electronic Equipment
(RoHS)
• Electromagnetic compatibility (EMC)
The device corresponds to state-of-the-art technology. However, it is still associate with
a number of residual hazards.
These hazards can be avoided through strict observance of our safety information.
2.1 Proper use
• Fast measuring device for water activity determination of foods
• Fast measuring device for water content determination of grain
• Fast measuring device for climate and environmental applications
2.2 Improper use
• The device should not be used in ATEX areas.
• The device is not waterproof, protect it from water and fine dust.
ATTENTION MEDIA COMPATIBILITY
Exposure of the sensor to harmful media, especially solvents, acids, alcohols
and preservatives, can damage the sensor or cause changes in sensor calibra-
tion.
• The user is responsible to check the media compatibility before using the RHL.
If necessary, a consultation with the sales partner or the manufacturer has to
made.
2.3 User qualifications
The device should only be handled by persons who are expected to carry out the work
reliably. Persons whose reactions are influenced, by drugs, alcohol or medication, are
not permitted to use the device.
Persons who use this device must have read and understood the user manual and
follow its instructions.

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2.4 General safety information
Follow the safety instructions below to avoid personal injury and material damage:
• Remove the batteries from the device if it is not to be used for a prolonged
period (4 weeks).
• If you notice loose parts or damage on the device, remove the batteries and
contact your distributor.
All of the device’s technical features have been inspected and tested before delivery.
Every device has a serial number. Do not remove the tag with the serial number.
2.5 Warranty
Not covered by warranty:
• Damages caused by non-observance of the user manual
• Damages caused by third-party intervention
• Products that have been used improperly or modified without authorization
• Products with missing or damaged warranty seals
• Damages caused by majeure, natural disasters, etc.
• Damages due to improper cleaning
• Damage due to leaking batteries

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3. First steps
3.1 Unpacking the device
• Unpack the device.
• Next, make sure that it is not damaged and that no parts are missing.
3.2 Checking the delivery content
Use the following list to check if the delivery is complete:
3.2.1 Scope of supply
• humimeter RHL
• 4 pieces AA alkaline batteries
• Rubber protection
• User manual
Required accessories:
• LF_TB 120 sensor with 300 mm length
• alternatively: LF_TB 120 sensor with special tube length
(possible length: 200 to 2000 mm)
Optional accessories:
• Plastic case
• Calibration ampoules - for self check of the humimeter RHx device series
• Calibration equipment - for self check of the humimeter RHx device series
• humimeter USB data interface module - USB stick with LogMemorizer software
(measurement data recording and evaluation software) and USB cable
• Portable thermo printer (can only be used in combination with humimeter USB
data interface module) - Described in a separate user manual

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3.3 Inserting the batteries
1. Remove the rubber protection of
the device. Pull it off the top of
the housing (figure1and2). If
the sensor is screwed on, it must
be first unscrewed or, in the case
of an optional USB interface, the
protective cover of the USB socket
has to be removed first.
2. Take the device in one hand and press with your thumb
on the marked area of the battery compartment (1). Now
slide the battery cover downwards from the device(2)
(figure 3).
3. Insert the batteries with negative and positive terminals
matching those indicated on the battery compartment.
Press the batteries down firmly, so that they lay flat on
the bottom of the housing (figure 4).
»When all the batteries are inserted, the device turns on
automatically.
4. Slide the battery cover back onto the housing until it
clicks into place (figure 5). Then put the rubber protection
onto the housing - start with the side where the battery
cover is.
4. Using the device - Basics
4.1 Turn on the device
• Press the button for 3seconds.
»The display will then show the status indicator (see "9. Checking the device’s
status") for about 3 seconds.
»The device turns on automatically after inserting batteries.
1 2
3
4
5

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4.2 Selecting the product type
To do so: The device has to be in the product selection menu.
For an overview of the different product types and the criteria for selecting them,
please refer to"7. Product types".
1. Press the or button to move from one pro-
duct to the next Or
2. Press the or button for 2 seconds to open
the product type overview (figure 6).
3. Use the arrow keys to move from one product type to the next and keep any of
them pressed to scroll through the types.
4. Confirm your selection by pressing .
»The product type you selected will now be shown at the top of the display.
4.3 Exchanging the sensor
• If a sensor is already connected, unscrew it counterclock-
wise.
• Then plug the desired sensor into the device until both
threads are in contact.
»Pay attention to the elevation in the connector and its
correct positioning (figure 8).
»The sensor should connect without force.
• Now tighten the thread.
4.4 Performing a measurement
• The measurement is described in chapter "5. Measure-
ment".
4.5 Turning off the device
To do so: The device has to be in the product selection or Data Log menu. It is not
possible to turn off the device when it is in the main menu.
• Press the button for 2seconds.
6
7
8

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5. Measurement
5.1 Preparing a measurement
To do so: The device has to have nearly the same temperature as the product being
measured. It is recommended to let your humimeter device adjust to the surrounding
temperature for at least 30 minutes before the measurement.
• Turn on the device (see "4.1 Turn on the device").
• Connect the desired sensor to the device (see "4.3
Exchanging the sensor").
»If no sensor is connected, the display will show No
Sensor (figure 9).
• Select the desired product type (see "7. Product
types") by pressing or (see "4.2 Selecting
the product type").
• Select a representative measuring point in your container, silo or warehouse.
5.2 Performing a measurement
To do so: The device has to have nearly the same temperature
as the product being measured (see "5.3 Adjustment behavi-
our of the sensor").
• Makre sure you have a representative measuring point in
your container, silo or warehouse.
»Insert the measuring head of the device straight into the
material being measured.
»Do not bend or drop the measuring head!
»Let the device adjust to the material being measu-
red for an adequate time period (see "5.3 Adjust-
ment behaviour of the sensor" Seite 20).
»The measuring values are shown on the display of
the device.
»Now you can save the displayed measured value
on the device (see "6.2 Manual memory function" or "6.3 Auto save function
(time-based)").
9
10
11

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ATTENTION
Injury hazard
Risk of injury by the measuring head
►Keep the measuring electrodes away from your body during all activities.
►Keep the measuring electrodes away from other people' bodies during all
activities.
iInformation - Measuring accuracy
This rapid and non-destructive measuring procedure allows you to quickly take
moisture readings at a number of different points. When saving the individual
readings, the device will automatically calculate the readings’ average (see
"6.2.2 Saving several readings (measurement series)").
iInformation - Incorrect readings
Make sure to select the correct product type for the material you are measu-
ring. This prevents taking incorrect readings (see "13. Faults").

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5.3 Adjustment behaviour of the sensor
In humidity and temperature measurement, several parameters are responsible for the
adjustment behaviour (time until the actual measured value is displayed). The para-
meter that can cause the highest measurement error is the temperature difference
between the sensors, as well as the entire measuring device, and the material to be
measured, or the air.
Therefore, allow your humimeter device to adjust until the displayed temperature
corresponds to the actual temperature. The graph below shows how long it takes to
adjust from 20 °C to 30 °C.
To demonstrate the importance of temperature adjustment, the table below shows the
measuring errors due to a temperature difference between the measuring instrument
and the material being measured of only 1 °C / 1.8 °F at different ambient temperatu-
res.
10 °C (50 °F) 20 °C (68 °F) 30 °C (86 °F)
10 % r.h. +/- 0,7 % +/- 0,6 % +/- 0,6 %
50 % r.h. +/- 3,5 % +/- 3,2 % +/- 3,0 %
90 % r.h. +/- 6,3 % +/- 5,7 % +/- 5,4 %
At room temperature (20 °C / 68 °F) and an assumed humidity value of 50 % relative
humidity a temperature difference between the measuring sensor and the material
being measured of 1 °C / 1.8 °F causes a measurement error of 3.2 % relative humidi-
ty. A temperature difference of 3 °C / 5.4 °F would cause a measurement error of more
than 10 % relative humidity.