Monitor HumiCore Pro Guide

BULLETIN
754A
HumiCore™Pro
HumiCore™PRO
Thank you for purchasing a quality product from Monitor
Technologies LLC. We realize that you do have a choice of vendors
when procuring moisture measurement systems and we sincerely
appreciate your business!
This manual contains the information necessary to ensure a safe and
successful installation. Please read and comply with the sections in
this manual pertaining to SAFETY. Doing so will ensure proper op-
eration of the equipment and the safety of all personnel.
Before discarding shipping container, please inspect it thorough-
ly and verify that all parts ordered are accounted for. Sometimes
smaller parts become stuck under carton aps and other packaging
materials.
In the event that information contained herein does not complete-
ly satisfy your requirements or answer your questions, you may
contact Technical Support on our website www.monitortech.com,
by telephone at 800-766-6486 (630-365-9403), or by e-mail at
[email protected]. If your HumiCore™ Pro ever re-
quires service either in or out of warranty, please contact us and
obtain an RMA number prior to shipping the unit to us.
www.monitortech.com
®
INSTALLATION & OPERATION
Moisture Measurement System
Sensor
Transmitter

1.0 GENERAL INFORMATION FOR INSTALLATION AND OPERATIONS
2
TABLE OF CONTENTS
This manual contains instructions that must be observed to ensure personal safety as well as to avoid dam-
age to the instrument. This device left the plant in optimal condition. To preserve this condition and ensure
safe operation of the device, the user must observe the instructions and warning notes indicated in this
operating manual. Please read this manual carefully prior to installation and commissioning.
NOTE: For the sake of clarity the manual does not contain complete detailed information on all product
types and can therefore not take into account every conceivable case with respect to installation, operation
and maintenance.
Should you wish further information or should special problems arise that are not treated in sufcient detail
in the manual, you can obtain the necessary information by contacting Technical Support at Monitor Tech-
nologies, LLC.
Moreover, we point out that the content of the manual shall not constitute part of or amend a previous or
existing contract, agreement or legal relationship. All obligations of Monitor Technologies, LLC shall result
from the respective contract of purchase, which also contains the complete and solely valid warranty terms.
These contractual warranty terms shall neither be extended nor limited by the information contained in the
manual.
WARNING: The device may only be used for the purposes specied in this operating manual.
DISCLAIMER: All modications to the device fall within the responsibility of the user unless expressly
specied otherwise in the operating manual.
Qualied Personnel
The assembly/disassembly, installation, operation, and maintenance are to be performed by qualied per-
sonnel practicing in the automation industry. This includes persons who are familiar with installation, as-
sembly, repair and operation of the industrial instrumentation and have the qualications necessary for their
work, such as:
• Training, instruction and/or authorization to operate and maintain equipment/systems in accordance
with the standards of safety technology for electrical circuits, high pressures and corrosive as well as
hazardous media.
• In the case of equipment with explosion protection: training, instruction and/or authorization to per-
form work on electrical circuits for potentially explosive equipment.
• Training or instruction in accordance with the standards of safety technology regarding care and use
of appropriate safety equipment.
Section Page
1.0 General Information ............................... 2
2.0 Principle of Operation ............................ 3
3.0 System Structure ................................... 3
3.1 Description of Sensor ......................... 4
3.2 Description of Transmitter ................. 4
4.0 Mounting and Assembly ....................... 5
4.1 Mounting in Screw Conveyor ............ 5
4.2 Indirect Installation ............................. 6
4.3 Mounting at Measurement Window
or Separation Layer ............................ 6
4.4 Mounting at Conveyor Belt .................. 7
4.5 TBUS Connector ............................... 7
5.0 Electrical Installation ............................. 8
6.0 Calibration .............................................. 9
6.1 Overview ............................................. 9
Section Page
6.2 Programming and Calibration
Hardware Set Up ............................ 10
6.3 Programming, Set Up
and Calibration ................................ 10
7.0 HumiCore™Pro Conguration
Program Screens ................................. 16
7.1 Products .......................................... 16
7.2 Digital Inputs .................................... 19
7.3 Analog Output ................................. 20
7.4 MAX-Alarm ...................................... 22
7.5 System ............................................ 23
8.0 Mechanical Drawings .......................... 24
9.0 Technical Specications ..................... 25
10.0 Warranty ............................................... 28

3
The HumiCore™Pro in-line moisture measuring system for process monitoring guarantees trouble-free
measurement of the internal product moisture of solids and emulsions. The HumiCore Pro moisture sen-
sor circuitry principle is centered around an electrical high frequency eld. With no material present, the
ambient air is the dielectric component of the electrical high frequency eld. The dielectric constant of air
is one. When the process is active, bulk material passing in front of the sensor face displaces the ambient
air and becomes the dielectric for the electrical high frequency eld. As the dielectric constant increases,
it also causes a change in the electrical high frequency eld. That change is processed by the electronics,
is compensated for temperature, and is sent to the transmitter. Given the sensor output, a control system
can now quantify and display the moisture content of the material passing by the sensor face. The area of
material inuence is typically up to 7.75 inches (200mm) from the sensor surface. Calibration is a simple
procedure which typically utilizes end user’s existing moisture measurement apparatus. The HumiCore
Pro sensor can provide a high precision measurement (0.1% to 0.3% typical).
A complete HumiCore Pro system consists of the DIN-Rail transmitter and the moisture sensor. The DIN-
Rail transmitter allows for easy integration into an existing control system. Calibration software is provided.
In addition, up to 24 different product parameters can be recorded to accommodate product or process
changes.
The HumiCore™Pro package consists of the components as depicted in Figure 1.
A) Sensor
B) Transmitter
C) Conguration Software
D) USB Cable
Figure 1
2.0 PRINCIPLE OF OPERATION
3.0 SYSTEM STRUCTURE
CAUTION: When handling this instrument, take care to exercise industry standard practices for electro-
static management. Sensitive electronic components may be damaged by electrical discharge that is far
below the limits of human perception. Such voltage occurs even when you touch a component or electrical
connections of a component and are not electrostatically discharged. The damage that occurs to a compo-
nent because of overvoltage usually cannot be detected immediately and may not become noticeable until
after a longer operating period.

3.1 Description of HumiCore™PRO Sensor
The HumiCore Pro sensor for capacitive moisture measurement as illustrated in Figure 2 is based on the
open capacitor principle. The bulk material in front of the measuring window serves as the dielectric of the
measuring capacitor. Data processing of the raw measured values with temperature compensation already
takes place in the moisture sensor. Data exchange with the HumiCore Pro transmitter takes place via the
RS-485 interface.
3.2 Description of HumiCore™PRO Transmitter
The HumiCore Pro moisture measuring system consists of the sensor and transmitter unit. The trans-
mitter is housed in a DIN-rail enclosure as depicted in Figure 3. The inline measuring system for process
monitoring guarantees troublefree measurement of the internal product moisture of solids and emulsions.
The PC-aided user interface HumiCore Conguration Program provides clear display of the measured,
alarm and MIN/MAX values, combined with easy editing and parameterization, enables uncomplicated and
simple operation.
Features
· 20-bit measured value acquisition and measured value process-
ing in the sensor
· Automatic temperature compensation according to stored table
· High degree of functional reliability combined with self-monitor-
ing function
· Low power input (≤ 350 mW)
· Digital transmission of measured values immune to interference
via RS-485 interface
· 3280’ (1000 m) maximum cable length between sensor and
transmitter
· Sturdy cylindrical stainless steel ange housing
· Little installation effort required for 4-core connecting line
· Easy, space-saving installation
The electronics installed behind the measuring window are encapsulated in a sturdy, hermetically sealed
plastic case. Mounted in a solid cylindrical stainless steel housing, the sensor is extensively insensitive to
external inuences. Special internal casting protects the entire electronics against penetration of moisture
and increases resistance to caustic solutions, acids and solvents. The HumiCore sensor is supplied from
the factory with pre-installed pig-tail cable and guarantees integrity to IP67 thanks to a high-quality PG
cable gland.
CAUTION: The measuring surface of the sensor is sensitive and must be protected against mechanical
impacts.
Figure 2
4
Specication
· PC-Control with HumiCore Conguration Software
· PLS-Connection with MODBUS-RTU-Protocol
· 24 independent product settings
· Galvanic separated USB 2.0-Interface to the PC
· Galvanic separated RS-485 Interface to the PLS
· Galvanic separated analog output for moisture
· Galvanic separated MAX-Alarm-Output
· Galvanic separated digital input for external control
· Galvanic separated sensor-connection
Figure 3

5
Sensor location
The HumiCore™Pro sensor is designed for continuous moisture measurement in production ow stream.
A prerequisite for correct moisture measurement in bulk materials is always to select the right place to in-
stall the moisture sensor. In connection with bulk material chutes or conveyor belts, you additionally have to
ensure that the material to be measured is fed over the sensor at a constant layer height.
4.1 Mounting in the screw conveyor
Mounting the moisture sensor in the screw conveyor has proven to be particularly advantageous since the
measured product is guided over the sensor at regular intervals with a constant thickness. The moisture
sensor has to be placed underneath the screw conveyor as depicted in Figure 4.
Figure 4
4.0 MOUNTING AND ASSEMBLY
sensor
bulk material
location of sensor
20° to 45°
Figure 5
NOTE: In the case of hard bulk materials, the sensor surface is subject to a latent risk of material getting
stuck between the screw conveyor and the HumiCore™Pro sensor. This can be prevented by cutting off
a small section of the spiral screw ight. (See Figure 5) As a substitute for the cutoff spiral, you can install
a rubber scraper that then performs the function of material transport.
wall of the screw conveyor
screw
spiral
truncate
helical portion
It is also possible
to mount a rubber
wiper on spiral.
1.57” / 2.36” [40 / 60]
DIMENSIONS ARE SHOWN IN
INCHES WITH MILLIMETER
EQUIVALENT IN BRACKETS
UNLESS OTHERWISE STATED
sensor
sensor
20° to 30°

6
4.2 Indirect installation
Indirect installation of the sensor is necessary if the wall thickness is 0.39” (10 mm) or more or the wall is
curved. In such cases use of a welded ange is recommended. (See Figure 6)
Figure 6
4.3 Mounting at a measurement window or separation layer
For most applications direct contact of the sensor surface with the product is desired. In some applica-
tions this might not be possible / suitable. In those cases, a neutral separator layer made out of Plexiglas®
(acrylic), glass, or similar material can be tted between sensor and product as seen in Figure 7. A metallic
separator layer is NOT permitted. Maximum thickness of the separator material is 1.18” (30 mm).
Use of a separating layer of 0.20” to 0.59” (5 to 15 mm) is recommended with chain conveyors or for mea-
surements with media having a temperature of over 176°F (80°C) up to max. 266°F (130°C). The permis-
sible thickness depends on the material to be measured and the residual water content. The measuring
surface of the moisture sensor must always have mechanical contact to the separating layer.
Figure 7
M6 - threaded bolt
weld
bulk material

4.4 Mounting at a conveyor belt
When installing the moisture sensor on a conveyor belt, an optional sled or ship may need to be incorpo-
rated into the conveyor belt system. (See Figure 8) A sled would be used in a situation where the material
ow is more even and the sensor would slide over the material. A ship would be used in a situation where
the material ow is more uneven and the ship can create a level / even area of material for the sensor.
Figure 8
Figure 9
4.5 TBUS Connector
Installation:
The transmitter housing can be combined with a 5-pole TBUS connector / rail connector as illustrated in
Figure 9. The RS-485 interface and the supply voltage can be conveniently wired through the TBUS con-
nector snapped onto the DIN rail. The TBUS connection is set up automatically in the mounting grid of the
devices involved. Consequently elaborate preliminary project planning or follow-up work on the TBUS con-
nection on site is not critical.
Technical data: 5-pole connector in the mounting grid 0.15” (3.81 mm)
8 A maximum contact load
High contact quality thanks to gold plating
Installation on DIN rails NS 35/7.5 or NS 35/15
IMPORTANT NOTE: The device may only be snapped into place on or disconnected from the TBUS con-
nector with the power off!
TBUS-CONNECTOR latching ---> HOUSING swirl ---> DEVICE mounted!
7
Sled Example (Optional) Ship Example (Optional)
Example of a
conveyor belt application
Sled / Ship System
(Optional)
Sensor
Material
Flow

Interface (+)
ORG
1 2 3 4
HumiCore Sensor
Factory Wiring
9 10 11 12
24V AC/DC
Power
Supply
HumiCore
Transmitter
V
(-) 24v DC / ~
(+) 24v DC / ~
5: mA Output (+)
6: mA Output (+)
7: mA Output (-)
8: mA Output (-)
1 2 3 4
5 6 7 8
9 10 11 12
9: Interface (+)
10: Interface (-)
11: Supply (+)
12: Supply (-)
1: 24v Input (+)
2: 24v Input (+)
3: 24v Input (-)
4: 24v Input (-)
See Note 1
See Note 2
Interface (-)
BRN
Supply (+)
RED
Supply (-)
BLK
13: digital input #1 (+)
14: digital input #1 (-)
15: digital input #2 (+)
16: digital input #2 (-)
21 22 23 24
13 14 15 16
17 18 19 20
17: digital output (+)
18: digital output (-)
19:
20:
21: rs485 system (A)
22: rs485 system (B)
23:
24:
Note 1
Supply (+)
Supply (-)
Interface (+)
Interface (-)
Note 2
ORANGE
RED
BROWN
BLACK
HumiCore
Transmitter
Note: Factory cable shield
is bonded internally to the
sensor. Do not connect cable
shield to any other ground
End User to bond sensor housing to local earth ground
HumiCore
Transmitter
HumiCore Sensor
Figure 10
5.0 ELECTRICAL INSTALLATION
8

9
6.0 CALIBRATION
6.1 Overview
The importance of accurate calibration cannot be overstated. The data collected during the calibration
process will determine the nal operating accuracy of the instrument.
Calibration consists of observing a properly installed HumiCore™Pro operating under actual process
conditions.
The HumiCore Pro detects the moisture content as the particulates move past the sensor. The HumiCore
Pro assigns this detection a raw measurement number. The calibration process involves associating the
raw number to a known moisture content percentage. This association establishes a calibration point. A
set of calibration points establishes a calibration prole. The HumiCore Pro system can facilitate a cali-
bration prole of up to ve calibration points. A typical calibration will involve just two calibration points; min
and max moisture levels. In some demanding applications where additional intermediary points might be
needed, up to ve calibration points can be recorded to create the prole.
Calibration Technique: Commissioning, or calibration, involves only a few steps but each is quite important:
- Begin with a completely installed and fully operational HumiCore™Pro system.
- Operate the conveying system while exposing the HumiCore sensor to material that contains the
minimum moisture. Record the HumiCore “raw” measurement value.
- Immediately acquire a sample of this material and make moisture measurement utilizing end user’s
established in-house moisture measuring process.
- By use of the included HumiCore Conguration software, associate the HumiCore “raw” measure-
ment value with the measured moisture content. This creates a calibration point.
- Operate the conveying system while exposing the HumiCore sensor to material that contains the
maximum moisture. Record the HumiCore “raw” measurement value.
- Immediately acquire a sample of this material and make moisture measurement utilizing end user’s
established in-house moisture measuring apparatus.
- By use of the included HumiCore Conguration software, associate the HumiCore “raw” measure-
ment value with the measured moisture content. This creates a calibration point.
- In the event the moisture content is known to be non-linear between the min and max levels, ad-
ditional intermediary (up to ve total) calibration points can be recorded by the HumiCore Pro
system. The more calibration points the greater the HumiCore moisture measuring accuracy.

10
6.2 Programming and Calibration Hardware Set Up
The HumiCore™Pro is set up, and calibration setting established, by use of a PC and the HumiCore
Conguration Program.
Using the details of Figure 11 as a guide, connect HumiCore Pro to PC.
Figure 11
6.3 Programming, Set Up and Calibration
Load program from CD onto PC. Copy or drag HumiCore™PRO folder onto PC desktop. Open Program
from desktop by clicking on HumiCore icon.
Next, open USB-Driver Windows folder and install the CP210 Silicon Labs USB Virtual Com Port driver.
To be able to make settings for the HumiCore PRO, all electrical connections have to be provided. The
transmitter is connected to a PC via the USB port prior to starting the CONFIG program. (See Figure 11)

11
Overview of the Software Input Screen
Figure 12
Taskbar:
File Load conguration
Save conguration
Extras Read device settings
Program parameters
Program parameters
and calibration
On-Line display
PC-Settings
Info
Symbol bar (from left):
Load conguration
Save conguration
Read device settings
Program parameters
On-Line display
User screen:
Products
Digital inputs
Analog output
Max-Alarm
System

12
You select the following settings using a pull-down menu:
Connection Selection of respective PC port (COM 1-4).
You can see which Com port you use on the computer
in the Control Panel => Device Manager.
Device address If the connection to the PC is made via the USB port, you can select
‘Direct’. If the connection is made via a network, e.g. via a PLS, you have
to enter the respective device address.
Baud rate Fixed value ‘19200’
Language ‘German’, ‘English’ and ‘Italian’ are available as menu languages.
Once the desired settings have been made, conrm them with ‘OK’.
After you have inputted the parameters, the connection between the PC and HumiCore Pro has to be
set up. Two options are available for this:
1. Upper taskbar ‘Extras’ => ‘Read device settings’ (See Figure 14) or
2. Click on the button ‘Read device settings’ in the symbol bar (See Figure 15)
Figure 15Figure 14
Figure 13
Connect conguration program
A connection must exist between the HumiCore™Pro transmitter and the PC in order to use the program.
Input the interface parameters via the tab ‘Extras’ =>‚ ‘PC-Settings’ (See Figure 13).

13
After the connection has been set up successfully, the following window appears (See Figure 16).
The connection setup is concluded by clicking on the ‘OK’ button.
The Taskbar ‘File’
Save Confi guration
It is recommended to create a backup  le after
every change in the con guration data in the Hu-
miCore™Pro transmitter or after every calibra-
tion of the sensor.
To save the new setting, click on the button ‘Save
con guration’. The window on the left appears to
save the con guration  le. (See Figure 17)
Enter the desired name in the  eld ‘File name’.
Then click on the button ‘Save’.
The  le is saved with the designated name in the
manually set-up target directory.
If required, e.g. in the case of data loss or product
group changes, you can load stored  les and in-
put them in the transmitter again.
In the event of data loss or use of other prod-
uct groups, the  les stored under Save con gu-
ration  le can be loaded in HU_con g-300 at
any time. The loaded  le must be transferred to
the HumiCore Pro transmitter by means of the
switch ‘Program parameters’. (See Figure 18)
Enter the  le name looked for in the  eld ‘File
name’.
Con rm the selection with the button Open. Then
the selected  le is available.
Figure 16
Figure 18
Figure 17
Load confi guration

The Taskbar ‘Extras’
Read device settings
Serves to activate a connection for the software to the HumiCore™Pro system (See “Connect congura-
tion program” in Section 6.3).
Program parameters
If any user data parameters are changed in the HumiCore Cong program, they must be stored/entered to
be retained. You must do this manually via the button ‘Program parameters’ or use the blue arrow symbol in
the symbol bar. Conrm the following conrmation prompt with ‘OK’ to start transfer of the data.
(See Figure 19)
When the data have been transferred successfully, the procedure is concluded by conrming with the ‘OK’
button in the following window (Figure 20):
A change in the calibration values cannot be saved in this process.
Program parameters and calibration
If one of the variables of the calibration has been changed in the user interface, it has to be added manually
to the HumiCore™Pro. This is done by using the button ‘Program parameters and calibration’. Conrm
the following conrmation prompt with ‘OK’ for successful transfer of the data. (See Figure 21)
The following window (Figure 22) then conrms successful transfer of the data:
14
Figure 19
Figure 20
Figure 21
Figure 22

15
On-Line display
Use the function Online display to call up the current real time measured values from the HumiCore™
Pro sensor (See Figure 23). After selection of the button ‘Online display’ the following values can be taken
from the screen:
Product: Name of the product
Measured value: Current measured value
Temperature: Current sample temperature
Raw value: Current measured raw value
Output: Current mA value of variable
A sensor or transfer error is indicated in the online
screen with Sensor fault (Figure 24).
The mA value for the analog output jumps to the
previously parameterized alarm value.
All other measured values are frozen when there is
an error and thus do not change any more.
Error elimination:
Check cable and terminal connections and possi-
bly restart the system.
PC-Settings
Serves the purpose of making port settings and selecting the menu language (see ‘Connect conguration
program’ in Section 6.3).
Figure 23
Figure 24

16
7.1 Products
The main screen ‘Products’ consists of two subcategories: product-settings and calibration. The rst step
is to select the respective product. The system offers the option of saving and retrieving 24 products. The
respective products are referenced via the following pull-down button.
In the rst eld ‘Product Name’ it is possible to manually store the type of product, the batch or a random
designation for the product.
In the pull-down menu ‘Display’ you can select the desired indication value. The selection options are:
M => moisture content, i.e. % moisture content
DS => dry solids content, i.e. % dry content
H2O => water content, i.e. % water content
The indication accuracy is specied in the pull-down menu ‘Decimal Point’. Up to three decimal places are
possible here.
‘Measure Range Begin’ and ‘Measure Range End’, on the other hand, make it possible to limit the required
measuring range. Limiting the measuring range (e.g. 30% - 50% RS) results in a higher resolution of the
measurement. This, in turn, leads to greater measuring accuracy.
The ‘Filter’ represents the time period used for mean-value generation. Several measuring points are re-
corded and averaged within a second. This results in continuous mean-value generation that is updated
every second.
Figure 25
7.0 HUMICORE™ PRO CONFIGURATION PROGRAM SCREENS

IMPORTANT: After every setting in the respective screen the data must be transferred to the
HumiCore™Pro system using the ‘Program parameters’ button! Otherwise there is a risk of losing
the settings (see ‘Program parameters’ in Section 6.3)!
If all product settings are done, you are able to start the calibration.
A good and exact calibration is absolutely necessary to achieve high measuring accuracy. First of all, you
have to specify the number of calibration points. In most cases 2 calibration points are adequate; in this
case linear behavior is assumed (See Figures 26 & 27).
2-point-calibration linear behavior:
3-point-calibration linear behavior:
The next step is to specify the calibration time. This may vary depending on the process. The factory setting
of 10 seconds can be adapted to the process in this step.
Figure 26 Figure 27
Figure 28 Figure 29
17

18
The 1st calibration point:
After specifying the number of calibration points and/or the calibration time, you can start the actual calibra-
tion.
To do so, click on the button ‘Calibration capture’ at the ‘1st calibration point’, then the window below (Figure
30) opens and calibration begins.
IMPORTANT: For the purpose of allocation of the measured raw values sampling has to take place
during the calibration process. These samples must be taken near or behind the sensor.
The 6-digit measured raw value is displayed after successful calibration. This value as seen in Figure 31 is
the calculated mean value of all raw values measured during the calibration.
The samples taken during the calibration process are now subjected to moisture determination in the labo-
ratory. The resulting values are also combined to form a mean value. The moisture value determined in the
laboratory is now manually allocated to the ‘1st calibration point’. This means the rst calibration point has
been dened.
The second calibration point is determined as described under ‘The 1st calibration point’.
IMPORTANT: After every setting in the calibration screen the data must be transferred to the
HumiCore™Pro system using the ‘Program parameters and calibration’ button! Otherwise there is
a risk of losing the settings (see ‘Program parameters and calibration in Section 6.3)!
Figure 30
Figure 31

19
7.2 Digital Inputs
The HumiCore™Pro transmitter has two digital inputs. Different functions can be performed when the
inputs are connected and activated. The digital inputs have to be connected to a control signal of 0 volts or
10 to 24 volts DC. The following functions are available:
Measurement STOP: This stops the measurement and freezes the value last indicated. That means this
value is retained until continuation of the measurement.
Application e.g. for batch processes, temporarily no product at the sensor and
start-stop controls for collecting devices.
Filter RESET: This resets the mean value. To form a mean value for the moisture, you have to set
a lter time at the conguration level PRODUCTS. If, however, the instantaneous
value should be indicated, the function Filter RESET is carried out.
Batch Mode: This results in indication of the mean value of a batch.
Application e.g. for bottling plants.
A receptacle is lled with a product. Moisture measurement is activated at the start
of the lling process and deactivated after the stop. The moisture measuring de-
vice calculates the mean moisture value of the bottled product after the end of the
lling process.
Sel.: This changes over from one product to another.
Application in the case of product change or product replacement. This also in-
cludes changes in grain size and a fundamental change in material.
IMPORTANT: After every setting in the respective screen the data must be transferred to the
HumiCore Pro system using the ‘Program parameters’ button! Otherwise there is a risk of losing
the settings (see ‘Program parameters’ in Section 6.3)!
Figure 32

20
The (measuring) range and the mA values (or V) of the analog outputs are dened in the main screen ‘Ana-
log outputs’. “Current” or “voltage” can be selected as the output signal via a pull-down menu.
One analog output is available. This mA output is freely adjustable. An appropriate measuring device has to
be connected to the respective output terminals for correct adjustment of the mA values.
To calibrate the analog outputs, select in the screen ‘Set calibration point’.
Now you can set the analog outputs with the help of the user interface as follows:
7.3 Analog Output
By means of the controller as depicted in Figure 34, you can increase the value (shift controller to the left) or
reduce the value (shift controller to the right). After setting the correct value, you have to click on the ‘Save’
button. Now the set value has been accepted by the program.
After adjustment of the output signals you now still have to specify the (measuring) ranges. The default set-
ting for concentration here is 4-20 mA, but a measuring range of 0-20 mA is also possible.
Figure 33
Figure 34