Sorel TDC 5A User manual

1
TDC 5
Temperature Difference Controller
Temperature Difference Controller TDC 5A
Installation and operating instructions
Read carefully before installation, commissioning and operation

2
Contents
Description of controller
2.1 Specifications
2.2 About the controller
2.3Scope of supply
2.4 Disposal of pollutants
2.5 Hydraulic variants
2
5
6
6
6
7
Operation
4.1Display and input
4.2 Menu sequence
4
17
18
Parametrisation
5.1 Commissioning help
5.2 Free commissioning
5
19
19
Malfunctions/
maintenance
16.1 Error messages
16.2 Replacing fuse
16.3 Maintenance
16
41
42
42
Installation
3.1 Wall installation
3.2Electrical connection
3.3Installing the sensors
3
8
9-15
16
Protective functionsMenu 6
11.1 Seizing protection
11.2 Frost protection
11.3 Solar protection
11.4 Recooling
11.5 Anti-legionella
11
30
30
31
32
33
Special function Menu 7
12.1 Program selection
12.2 Display mode
12.3 Sensor calibration
12.4 Commissioning
12.5 Factory settings
12.6 Expansions
12.7 Heat metering
12.8 Start aid
12.9 Speed control
12
34
34
35
35
35
35
36
36
37-38
Useful notes
17 43
Chapter Page Chapter Page
Measurement Menu 1
values
620
Analyses Menu 2
7.1 Operating hours
7.2 Average ΔT
7.3 Heat output
7.4 Graphic overview
7.5 Error messages
7.6 Reset/clear
7
21
21
21
21
21
21
Periods Menu 3
8.1 Time and date
8.2-3 Thermostat periods
8.3 Circulation periods
8
22
22
22
Operating modes Menu 4
9.1 Automatic
9.2 Manual
9.3 Off
9
23
23
23
Settings Menu 5
10.1-2 TminS1, S5
10.3-4 TmaxS2,S4
10.5-6 ΔTR1, R2
10.7-8 TsetS3, Hyst.S3
10.9. Energy saving mode
10.10 TminS3
10.11-12 TsetS4, Hyst.S4
10.13 Party function
10.14-15 Priority....
10.16 Charging pause
10.17-18 Increase,Table/over-
view
10
24
24-25
25-26
26
27
27
27
28
28
28
29
Menu lock Menu 8 39
13
Language Menu10
14 39
Service values Menu 9
15 40
Safety Instructions
1.1 EC-conformity
1.2 General instructions
1.3 Explanation of symbols
1.4 Changes
1.5 Warranty
1
3
3
3
4
4

3
1.1 EC declaration of conformity
By affixing the CE mark to the unit the manufacturer declares that the
Temperature-Difference-Controller 5, hereinafter referred to as TDC 5A,
conforms to the following relevant safety regulations:
- EC low voltage directive
73/23/EEC, as amended by 93/68/EEC
- EC electromagnetic compatibility directive
89/336/EEC version 92/31/EEC version 93/68/EEC
Conformity has been verified and the corresponding documentation and
the EC declaration of conformity are kept on file by the manufacturer.
1.2 General instructions It is essential that you read this!
These installation and operating instructions contain basic instructions and
important information regarding safety, installation, commissioning, main-
tenance and the optimal use of the unit. Therefore these instructions must
be read completely and understood by the installation technician/ specialist
and by the system user before installation, commissioning and operation
of the unit. The valid accident prevention regulations, VDE regulations,
the regulations of the local power utility, the applicable DIN-EN standards
and the installation and operating instruction of the additional system
components must also be observed. The controller does not under any
circumstances replace any safety devices to be provided by the customer!
Installation, electrical connection, commissioning and maintenance of the
unit may only be carried out by specialists who possess the appropriate
training. For the user: Make sure that the specialist gives you detailed
information on the function and operation of the controller. Always keep
these instructions in the vicinity of the controller.
1.3 Explanation of symbols
Failure to observe these instructions can result in danger to life
from electric voltage.
Danger!
Danger!
Failure to observe these instructions can result in serious damage
to health such as scalding, or even life-threatening injuries.
Caution
Failure to observe these instructions can result in destruction of
the unit or the system, or damage to the environment.
Caution
Information which is especially important for the function and
optimal use of the unit and the system.
Safety instructions
1 1

4
Safety instructions
1 1
1.4 Changes to the unit
1.5 Warranty and liability
The controller has been manufactured and tested with regard to high qua-
lity and safety requirements. The unit is subject to the statutory guarantee
period of two years from the date of sale. The warranty and liability shall
not include, however, any injury to persons or material damage that is
attributable to one or more of the following causes:
- Failure to observe these installation and operating instructions
- Improper installation, commissioning, maintenance and operation
- Improperly executed repairs
- Unauthorised structural changes to the unit
- Installation of additional components that have not been tested
together with the unit
- Any damage resulting from continued use of the unit despite an
obvious defect
- Failure to use original spare parts and accessories
- Use of the device for other than its intended purpose
- Operation above or below the limit values listed in the
specifications
- Force majeure
- Changes, additions to or conversion of the unit are not permitted
without the written permission from the manufacturer
- It is likewise forbidden to install additional components that have not
been tested together with the unit
- If it becomes clear that safe operation of the unit is no longer possible,
for example because of damage to the housing, then turn the
controller off immediately
- Any parts of the unit or accessories that are not in perfect condition
must be exchanged immediately
- Use only original spare parts and accessories from the manufacturer.
- Markings made on the unit at the factory must not be altered,
removed or made illegible
- Only the settings actually described in these instructions may be made
on the controller
Danger!
Changes to the unit can compromise the safety and function of the
unit or the entire system.

5
Description of controller
2 2
2.1 Specifications
Electrical specifications:
Mains voltage 230VAC +/- 10%
Mains frequency 50...60Hz
Power consumption 2VA
Switched power
Electronic relay R1 min.20W...max.120W for AC3
Mechanical relay R2 460VA for AC1 / 185W for AC3
Mechanical relay R3 460VA for AC1 / 185W for AC3
Internal fuse 2A slow-blow 250V
Protection category IP40
Protection class II
Sensor inputs 6 x Pt1000
Measuring range -40°C up to 300°C
Permissible ambient conditions:
Ambient temperature
for controller operation 0°C...40°C
for transport/storage 0°C...60°C
Air humidity
for controller operation max. 85% rel. humidity at 25°C
for transport/storage no moisture condensation permitted
Other specifications and dimensions
Housing design 2-part, ABS plastic
Installation methods Wall installation, opt. panel installation
Overall dimensions 163mm x 110mm x 52mm
Aperture installation
dimensions 157mm x 106mm x 31mm
Display Fully graphical display, 128 x 64 dots
Light diode Multicolour
Operation 4 entry keys
Temperature sensors: (may not be included in the scope of supply)
Collector or boiler sensor Pt1000, e.g. immersion sensor TT/S2 up to 180°C
Storage tank sensor Pt1000, e.g. immersion sensor TT/P4 up to 95°C
Pipe-mounted sensor Pt1000, e.g. pipe-mounted sensor TR/P4 up to 95°C
Sensor leads 2x0.75mm² extendable up to 30m max.
Temperature resistance table for Pt1000 sensors
°C 0 10 20 30 40 50 60 70 80 90 100
Ω 1000 1039 1077 1116 1155 1194 1232 1270 1308 1347 1385

6
2.2 About the controller
The Temperature Difference Controller TDC 5 facilitates efficient use and func-
tion control of your solar or heating system. The device is impressive most of all
for its functionality and simple, almost self-explanatory operation. For each step
in the input process the individual entry keys are assigned to appropriate func-
tions and explained. The controller menu contains headwords for the measured
values and settings, as well as help texts or clearly-structured graphics.
The TDC 5 can be used as a temperature difference controller for the various
system variants illustrated and explained under 2.5.
Important characteristics of the TDC 5:
- Depiction of graphics and texts in a lighted display
- Simple viewing of the current measurement values
- Analysis and monitoring of the system by means of statistical graphics,etc.
- Extensive setting menus with explanations
- Menu block can be activated to prevent unintentional setting changes
- Resetting to previously selected values or factory settings
- A wide range of additional functions are available.
Description of controller
2 2
2.3 Scope of supply
- Temperature Difference Controller TDC 5
- 3 screws 3,5x35mm and 3 plugs 6mm for wall installation
- 6 strain relief clips with 12 screws, replacement fuse 2A slow-blow
- Installation and operating instructions TDC 5
Optionally contained depending on design/order:
- 2-3 PT1000 temperature sensors and immersion sleeves
Additionally available:
- Pt1000 temperature sensor, immersion sleeves, overvoltage protection
Various additional functions by means of supplementary circuit boards
2.4 Disposal and pollutants
The unit conforms to the European RoHS directive 2002/95/EC for the
restriction of the use of certain hazardous substances in electrical and
electronic equipment.
Caution
The unit must not under any circumstances be disposed of with
ordinary household refuse. Dispose of the unit only at appropriate
collection points or ship it back to the seller or manufacturer.

7
Description of controller
2 2
2.5 Hydraulic variants
The following illustrations should be viewed only as schematic dia-
grams showing the respective hydraulic systems, and do not claim
to be complete. The controller does not replace safety devices
under any circumstances. Depending on the specific application, additio-
nal system components and safety components may be mandatory, such
as check valves, non-return valves, safety temperature limiters, scalding
protectors, etc., and must therefore be provided.
Caution
1
3
5
2
4
6

8
3.1 Wall installation
Installation
3 3
Caution
Install the controller only in dry areas and under the ambient
conditions described under 2.1 “Specifications”. Carry out the
following steps 1-8.
A
Fig.3.1.1
Fig.3.1.2
1.Unscrew cover screw completely
2.Carefully pull upper part of housing
from lower part.
3.Set upper part of housing aside,
being sure not to touch the elect-
ronics when doing so.
4.Hold the lower part of the housing
up to the selected position and
mark the 3 mounting holes. Make
sure that the wall surface is as
even as possible so that the
housing does not become distor-
ted when it is screwed on.
5.Using a drill and size 6 bit, drill 3
holes at the points marked on the
wall and push in the plugs.
6.Insert the upper screw and screw
it in slightly.
7.Fit the upper part of the housing
and insert the other two screws.
8. Align the housing and tighten the
three screws.

9
Installation
3 3
3.2 Electrical connection
Before working on the unit, switch off the power supply and secu-
re it against being switched on again! Check for the absence of
power! Electrical connections may only be made by a specialist
and in compliance with the applicable regulations. Do not use the
controller if the housing shows visible damage.
Caution
Danger!
Low-voltage cables such as temperature sensor cables must be routed
separately from mains voltage cables. Feed temperature sensor cables
only into the left-hand side of the unit, and mains voltage cables only
into the right-hand side.
Caution
Caution
Fig.
3.2.1
Caution
The customer must provide an all-pole disconnecting device, e.g. a
heating emergency switch.
The cables being connected to the unit must not be stripped by more
than 55mm, and the cable jacket must reach into the housing just to
the other side of the strain relief.
Relay R1 is only suitable for standard pumps (20-120VA) which are
speed-controlled viathe controller. The internal wiring of the controller is
such that residual currents flow over relay R1 even in the rest condition.
Therefore under no circumstances may valves, contactors or other
consumers with low power consumption be operated on this output.
1.Select necessary program/hydrau-
lics (Fig. 3.2.2-3.2.16)
2.Open controller as described under
3.1.
3.Strip cables by 55mm max., insert, fit
the strain relief devices, strip the last
8-9mm of the wires. (Fig. 3.2.1)
4.Open the terminals using a suitable
screwdriver (Fig. 3.2.1) and make
electrical connections on the cont-
roller (Pages 10-17)
5.Refit upper part of housing and fas-
ten with screw.
6.Switch on mains voltage and place
controller in operation.
8...9
~30°
max. 55

10
Installation
3 3
3.2 Electrical connection (continued)
3.2.1 Solar with circulation
Low voltage max. 12VAC/DC
connection in the left-hand terminal
compartment!
Terminal: Connection for:
S1 Sensor 1 collector
S2 Sensor 2 storage
S3 Sensor 3 (Thermostat)
S4 Sensor 4 (circulation)
S5 Sensor 5 (opt. circula.)
S6 Sensor 6 (optional,
see 11.5)
+ not used
- jumper terminal
block-
Connection of sensor earths (S1-S6)
via terminal block sensor-
The polarity of the sensors is freely
selectable.
Sensor side
max. 12V Danger!
Caution
Mains side
230VAC
Mains voltages 230VAC 50-60Hz
Connection in the right-hand terminal
compartment!
Terminal: Connection for:
R1 Pump L (speed)
N Pump N
L Mains phase conductor L
N Mains neutral conductor N
R2 Pump L(no speed)
N Pump N
R3 Thermostat L
N Thermostat N
The PE protective conductor must be
connected to the PE metal terminal
block!
Brief description:
Function ∆T R1 (10.5) switches the
pump at relais R1.
Function Tset S3 (10.7) switches the
additional heating at relais R3.
Function Tset S4 (10.11) switches the
circulationpump at relais R2.
Caution
Relais R1: Only for speed
control of standard pumps,
minimum load 20 VA

11
Installation
3 3
3.2 Electrical connection (continued)
3.2.2 Solar with follow-on storage
Sensor side
max. 12V
Danger!
Caution
Mains side
230VAC
Low voltage max. 12VAC/DC
connection in the left-hand terminal
compartment!
Terminal: Connection for:
S1 Sensor 1 collector
S2 Sensor 2 storage1 low
S3 Sensor 3 (Thermostat,
storage 1 or 2)
S4 Sensor4 storage2 up.
S5 Sensor5 storage1 up.
S6 Sensor 6 (optional,
see 11.5)
+ not used
- jumper terminal
block-
Connection of sensor earths (S1-S6)
via terminal block sensor-
The polarity of the sensors is freely
selectable.
Mains voltages 230VAC 50-60Hz
Connection in the right-hand terminal
compartment!
Terminal: Connection for:
R1 Pump L (Drehzahl)
N Pump N
L Mains phase conductor L
N Mains neutral conductor N
R2 Pump L(no speed)
N Pump N
R3 Thermostat L
N Thermostat N
The PE protective conductor must be
connected to the PE metal terminal
block!
Caution
Relais R1: Only for speed
control of standard pumps,
minimum load 20 VA
Brief description:
Function ∆T R1 (10.5) switches the
pump at relais R1.
Function Tset S3 (10.7) switches the
additional heating at relais R3.
Function ∆T R2 (S5>S4 10.6) schaltet
die Pumpe an Relais R2.

12
Installation
3 3
3.2 Electrical connection (continued)
Sensor side
max. 12V
Danger!
Caution
Mains side
230VAC
3.2.3 Solar with return lift
Low voltage max. 12VAC/DC
connection in the left-hand terminal
compartment!
Terminal: Connection for:
S1 Sensor1 Collector
S2 Sensor2 Storage low
S3 Sensor3 (Thermostat)
S4 Sensor4 Return
S5 Sensor5 Storage middl
S6 Sensor6 (optional,
see 11.5)
+ not used
- jumper terminal
block-
Connection of sensor earths (S1-S6)
via terminal block sensor-
The polarity of the sensors is freely
selectable.
Mains voltages 230VAC 50-60Hz
Connection in the right-hand terminal
compartment!
Terminal: Connection for:
R1 Pump L (speed)
N Pump N
L Mains phase conductor L
N Mains neutral conductor N
R2 Valve L(no speed)
N ValveN
R3 Thermostat L
N Thermostat N
Actuating direction of valve:
R2 on/valve on = flow through sto-
rage
The PE protective conductor must
be connected to the PE metal terminal
block!
Caution
Relais R1: Only for speed
control of standard pumps,
minimum load 20 VA
Brief description:
Function ∆T R1 (10.5) switches the
pump at relais R1.
Function Tset S3 (10.7) switches the
additional heating at relais R3.
Function ∆T R2 (S5>S4 10.6) schaltet
die Pumpe an Relais R2.

13
Installation
3 3
3.2 Electrical connection (continued)
3.2.4 Solar and double thermostat
Sensor side
max. 12V
Danger!
Caution
Mains side
230VAC
Low voltage max. 12VAC/DC
connection in the left-hand terminal
compartment!
Terminal: Connection for:
S1 Sensor 1 Collector
S2 Sensor 2 Storage low
S3 Sensor 3 (Thermostat)
S4 Sensor 4 (Thermostat)
S5 Sensor 5 (optional)
S6 Sensor 6 (optional,
see 11.5)
+ not used
- jumper terminal
block-
Connection of sensor earths (S1-S6)
via terminal block sensor-
The polarity of the sensors is freely
selectable.
Mains voltages 230VAC 50-60Hz
Connection in the right-hand terminal
compartment!
Terminal: Connection for:
R1 Pump L (speed)
N Pump N
L Mains phase conductor L
N Mains neutral conductor N
R2 Thermostat L
N Thermostat N
R3 Thermostat L
N Thermostat N
The PE protective conductor must
be connected to the PE metal terminal
block!
Caution
Relais R1: Only for speed
control of standard pumps,
minimum load 20 VA
Brief description:
Function ∆T R1 (10.5) switches the
pump at relais R1.
Function Tsetpoint S3 (10.7 ) switches
the additional heating at relais R3.
Function Tsetpoint S4 (10.11) swit-
ches additional heating at R2.

14
Installation
3 3
3.2.5 Solar 2 storages / valves
Sensor side
max. 12V
Danger!
Caution
Mains side
230VAC
3.2 Electrical connection (continued)
Brief description:
Function ∆T R1 (10.6) switches pump
at relais R1.
Function priority (10.15) switches
valve at relais R2.
Function Tset S3 (10.7) switches Ad-
ditional heating at relais R3.
Low voltage max. 12VAC/DC
connection in the left-hand terminal
compartment!
Terminal: Connection for:
S1 Sensor1 Collector
S2 Sensor 2 Storage1 low
S3 Sensor 3 (Thermostat)
S4 Sensor 4 Storage 2 low
S5 Sensor 5 (optional)
S6 Sensor 6 (optional,
see 11.5)
+ not used
- jumper terminal
block-
Connection of sensor earths (S1-S6)
via terminal block sensor-
The polarity of the sensors is freely
selectable.
Mains voltages 230VAC 50-60Hz
Connection in the right-hand terminal
compartment!
Terminal: Connection for:
R1 Pump L (speed)
N Pump N
L Mains phase conductor L
N Mains neutral conductor N
R2 Valve L
N Valve N
R3 Thermostat L
N Thermostat N
Actuating direction of valve:
R2 on/valve on = flow through 2nd
storage
The PE protective conductor must be
connected to the PE metal terminal
block!
Caution
Relais R1: Only for speed
control of standard pumps,
minimum load 20 VA

15
Installation
3 3
3.2 Electrical connection (continued)
3.2.6 Solar 2 storages / 2 pumps
Sensor side
max. 12V
Danger!
Caution
Mains side
230VAC
Low voltage max. 12VAC/DC
connection in the left-hand terminal
compartment!
Terminal: Connection for:
S1 Sensor 1 Collector
S2 Sensor 2 storage 1 up.
S3 Sensor 3 (Thermostat)
S4 Sensor 4 storage 2 up.
S5 Sensor 5 (optional)
S6 Sensor 6 (optional,
see 11.5)
+ not used
- jumper terminal
block-
Connection of sensor earths (S1-S6)
via terminal block sensor-
The polarity of the sensors is freely
selectable.
Mains voltages 230VAC 50-60Hz
Connection in the right-hand terminal
compartment!
Terminal: Connection for:
R1 Pump L (speed)
N Pump N
L Mains phase conductor L
N Mains neutral conductor N
R2 Pump L(no speed)
N Pump N
R3 Thermostat L
N Thermostat N
The PE protective conductor must
be connected to the PE metal terminal
block!
Caution
Relais R1: Only for speed
control of standard pumps,
minimum load 20 VA
Brief description:
Function ∆T R1 (10.5) switches pump
at relais R1.
Function ∆T R2 (10.6) switches pump
at relais R2.
Function Tset S3 (10.7) switches ad-
ditional heating at relais R3.

16
Installation
3 3
3.2 Electrical connection (continued)
3.3 Installing the temperature sensors
The temperature sensor cables must be routed separately from
mains voltage cables, and must not, for example, be routed in the
same cable duct!
Caution
The controller operates with Pt1000 temperature sensors which are ac-
curate to the degree, thus ensuring optimal control of system functions.
Caution
If desired the sensor cables can be extended to a maximum of 30m
using a cable with a cross-section of at least 0.75mm². Make sure
that there is no contact resistance!
Position the sensor precisely in the area to be measured! Only
use immersion, pipe-mounted or flat-mounted sensor suitable for
the specific area of application with the appropriate permissible
temperature range.

17
Examples of display symbols:
Pump (rotates in operation)
Valve (direction of flow black)
Collector
Storage
Temperature sensor
Warning/error message
New information available
Additional heating on
Additional heating off
Operation
4 4
4.1 Display and input
The display (1), with its extensive text
and graphics mode, is almost selfex-
planatory, allowing easy operation of
the controller.
The LED (2) lights up green when a
relay is switched on.
The LED (2) lights up red when
operating mode “Off” is set.
The LED (2) flashes slowly red in the
operating mode “Manual”.
The LED (2) flashes quickly red when
an error is present.
Entries are made using four keys
(3+4), which are assigned to different
functions depending on the situation.
The “esc” key (3) is used to cancel an
entry or to exit a menu. If applicable
there will be a request for confirma-
tion as to whether the changes which
have been made should be saved. The
function of each of the other three keys
(4) is shown in the display line directly
above the keys; the right-hand key
is generally has a confirmation and
selection function.
Examples of key functions:
+/- = enlarge/shrink values
/ = scroll menu down/up
yes/no = approve/reject
Info = additional information
Back = to previous screen
ok = confirm selection
Confirm = confirm setting
(1)
(2)
(3)
(4)

18
Operation
4 4
4.2 Menu sequence and menu structure
The graphics or overview mode ap-
pears when no key has been press
for 2 minutes, or when the main
menu is exited by pressing “esc“.
Pressing a key in graphics or over-
view mode takes you directly to the
main menu. The following menu
items are then available for selec-
tion there:
Current temperature values with
explanations (see 6.)
Function control of the system with
operating hours, etc. (see 7.)
Automatic mode, manual mode or
switch unit off (see 9.)
Set parameters needed for normal
operation (see 10.)
Solar and frost protection, recooling,
anti-seizing protection etc. (see 11.)
Program selection, sensor calibration,
clock, additional sensor, etc. (see 12.)
Against unintentional setting chan-
ges at critical points (see 13.)
For diagnosis in the event of an
error (see 14.)
Set the menu language (see 15.)
3. Periods
7. Special functions
4. Operating mode
9. Service values
10. Language
2. Statistics
6. Prot. functions
8. Menu lock
1. Measurements
5. Settings
Set times and date

19
Parametrisation
5 5
The first time the controller is turned
on and after the language and time
are set, a query appears as to whether
you want to parametrise the controller
using the commissioning help or not.
The commissioning help can also be
terminated or called up again at any
time in the special functions menu.
The commissioning help guides you
through the necessary basic settings
5.1 Commissioning help
Caution
Observe the explanations for the the individual parameters on the
following pages, and check whether further settings are necessary for
your application.
5.2 Free commissioning
If you decide not to use the commissioning help, you should make the neces-
sary settings in the following sequence:
- Menu 10. Language (see 14.)
- Menu 7.2 Time and date (see 12.2)
- Menu 7.1 Program selection (see 12.1)
- Menu 5. Settings, all values (see 10.)
- Menu 6. Protective functions if adaptations are necessary (see 11.)
- Menu 7. Special functions if additional changes are necessary (see 12.)
Finally, menu 4.2 under operating mode “Manual“ should be used to test the
switch outputs with the consumers connected, and to check the sensor values
for plausibility. Then switch on automatic mode.
in the correct order, and provides brief descriptions of each parameter in the
display. Pressing the “esc” key takes you back to the previous value so you can
look at the selected setting again or adjust it if desired. Pressing the “esc“ more
than once takes you back step by step to the selection mode, thus cancelling the
commissioning help. Finally, menu 4.2 under operating mode “Manual” should
be used to test the switch outputs with the consumers connected, and to check
the sensor values for plausibility. Then switch on automatic mode.
Caution
Observe the explanations for the the individual parameters on the
following pages, and check whether further settings are necessary for
your application.

20
The menu “1. Measurement values”
serves to display the currently mea-
sured temperatures.
The menu is closed by pressing
“esc” or selecting “Exit measurement
values”.
Selecting “Info” leads to a brief help
text explaining the measurement
values.
Selecting “Overview” or “esc” exits
the Info mode.
If “Error” appears on the display instead of the measurement value,
then there may be a defective or incorrect temperature sensor.
Caution
Measurement values menu 1
6 6
If the cables are too long or the sensors are not placed optimally, the
result may be small deviations in the measurement values. In this case
the display values can be compensated for by making entries on the con-
troller. Follow the instructions under 12.3. What measurement values are
displayed depends on the selected program, the connected sensors and
the specific device design.
6. Measurement values