Bühler technologies Thermotronik TT-77 User manual

Fluidcontrol
Installation and Operation Instructions
Original instructions
Display and control unit
Thermotronik TT-77
BE140013
07/2019
Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen
Tel. [phone] / 49 89-0, Fax: [phone] / 49 89-20
E-Mail: [email protected]
Internet: www.buehler-technologies.com

Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen
Tel. [phone] / 49 89-0, Fax: [phone] / 49 89-20
Internet: www.buehler-technologies.com
E-Mail: [email protected]
Read this instruction carefully prior to installation and/or use. Pay at-
tention particularly to all advises and safety instructions to prevent in-
juries. Bühler Technologies can not be held responsible for misusing
the product or unreliable function due to unauthorised modifications.
All rights reserved. Bühler Technologies GmbH 2019
Document information
Document No...........................................................BE140013
Version......................................................................... 07/2019

Thermotronik TT-77
Contents
1 Introduction..................................................................................................................................................................................................................... 3
1.1 Intended Use......................................................................................................................................................................................................... 3
1.2 Design types.......................................................................................................................................................................................................... 3
1.3 Model key............................................................................................................................................................................................................... 3
1.4 Contents.................................................................................................................................................................................................................4
2 Safety instructions......................................................................................................................................................................................................... 5
2.1 Important advice ................................................................................................................................................................................................. 5
2.2 General hazard warnings .................................................................................................................................................................................6
3 Transport and storage .................................................................................................................................................................................................. 7
4 Setup and connection...................................................................................................................................................................................................8
4.1 Installation ............................................................................................................................................................................................................8
4.2 Electrical connections ........................................................................................................................................................................................8
5 Operation and control ..................................................................................................................................................................................................9
5.1 Start-up procedure .............................................................................................................................................................................................9
5.2 LED statuses ..........................................................................................................................................................................................................9
5.3 General key functions ......................................................................................................................................................................................10
5.4 Keylock enabled ................................................................................................................................................................................................. 10
5.5 Menu overview ...................................................................................................................................................................................................11
5.6 Changing basic settings .................................................................................................................................................................................. 12
5.6.1 Disabling normal error handling...................................................................................................................................................12
5.6.2 Set temperature unit......................................................................................................................................................................... 12
5.6.3 Set supply cable length (wall mounting - optional)................................................................................................................. 13
5.6.4 Set supply cable cross-section (wall-mounting - optional).................................................................................................... 13
5.6.5 Define switching outputs ................................................................................................................................................................ 13
5.6.6 Set display refresh rate .....................................................................................................................................................................14
5.6.7 Enable/disable keylock......................................................................................................................................................................14
5.6.8 Restore factory settings (Reset)......................................................................................................................................................14
5.7 Switching outputs............................................................................................................................................................................................. 16
5.7.1 Switching output x: Definition of the switching characteristic...........................................................................................16
5.7.2 Switching output x: Upper switching limit (switching point).............................................................................................. 17
5.7.3 Switching output x: Lower switching limit (switch-back point) ..........................................................................................18
5.7.4 Switching output x: Switch-on delay ...........................................................................................................................................18
5.7.5 Switching output x: Switch-back delay .......................................................................................................................................18
5.7.6 Switching output x: Testing the switching output ..................................................................................................................19
5.7.7 Change status LED display function .............................................................................................................................................19
5.8 Analogue outputs ............................................................................................................................................................................................ 20
5.8.1 Analogue output x: Assigning the upper limit.........................................................................................................................20
5.8.2 Analogue output x: Lower limit assignment .............................................................................................................................21
5.8.3 Analogue output x: Signal type assignment.............................................................................................................................. 21
5.8.4 Analogue output x: Testing the analogue output ................................................................................................................... 21
5.9 Diagnostic options ............................................................................................................................................................................................22
5.9.1 View logbook....................................................................................................................................................................................... 22
5.9.2 Maximum and minimum temperature ......................................................................................................................................23
5.9.3 Define switching output to log ......................................................................................................................................................23
5.9.4 Delay for storing the Min/Max Temperature ............................................................................................................................23
6 Cleaning and Maintenance.......................................................................................................................................................................................24
7 Service and repair......................................................................................................................................................................................................... 25
7.1 Troubleshooting ................................................................................................................................................................................................25
7.2 Spare parts and accessories ...........................................................................................................................................................................26
8 Disposal........................................................................................................................................................................................................................... 27
9 Appendices.....................................................................................................................................................................................................................28
9.1 Technical Data TT-77.........................................................................................................................................................................................28
9.2 Technical Data TT-77W.....................................................................................................................................................................................30
9.3 Standard pin assignment TT-77F ...................................................................................................................................................................31
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Thermotronik TT-77
9.4 Standard pin assignment TT-77W ................................................................................................................................................................32
9.5 Current settings.................................................................................................................................................................................................33
9.6 Display ranges....................................................................................................................................................................................................33
9.7 Menu Sequence Overview ..............................................................................................................................................................................34
9.8 Display resolution ............................................................................................................................................................................................. 35
10 Attached documents...................................................................................................................................................................................................36
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Thermotronik TT-77
1 Introduction
1.1 Intended Use
The display and control unit is used to monitor the temperature in fluid systems.
The level switch must not be used in highly flammable or corrosive liquids.
Please note the technical data in the appendix for the specific intended use, existing material combinations, as well as temper-
ature limits.
WARNING
All device models are solely intended for industrial applications. They are not safety com-
ponents. The devices must not be used if failure or malfunction thereof jeopardises the
safety and health of persons.
Use in explosive areas is prohibited.
1.2 Design types
The Thermotronic is equipped with different switching and analogue outputs based on the configuration. The outputs are freely
programmable.
The available versions are:
TT77F… The display and control unit can be mounted to the tank along with the switching tube.
TT77W… The display and control unit can be mounted to a 35mm (1.4") top-hat rail to be used as a remote display.
With direct mounting, the display swivels 270°.
Please refer to the type plate for your equipment configuration. In addition to the job number, this also contains the item num-
ber and type designation
1.3 Model key
Version
MS
VA
280
370
500
variable, please specify
(max. 1000 mm)
Length
TT-77W
Brass
Stainless steel
Model designation
Switching outputs
2 x PNP output
-2T-KT
-2T
4 x PNP output
-4T
1 x PNP output
1 x analogue output
-1T-KT
2 x PNP output
1 x analogue output
-4T-KT
4 x PNP output
1 x analogue output
TT-77W = remote display version
------------ ------------
------------
1 x IO-Link
1 x PNP output
-1D1S
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Thermotronik TT-77
Version
MS
VA
280
370
500
variable, please specify
(max. 1000 mm)
Length
TT-77F
Brass
Stainless steel
Model designation
Switching outputs
2 x PNP output
-2T-K
-2T
4 x PNP output
-4T
1 x PNP output
1 x analogue output
-1T-K
2 x PNP output
1 x analogue output
-4T-K
4 x PNP output
1 x analogue output
TT-77F = tank mounted version
------------
------------
------------
1 x IO-Link
1 x PNP output
-1D1S
1.4 Contents
– Thermotronic
– Product documentation
– Connection/mounting accessories (optional)
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2 Safety instructions
2.1 Important advice
Operation of the device is only valid if:
– the product is used under the conditions described in the installation- and operation instruction, the intended application
according to the type plate and the intended use. In case of unauthorized modifications done by the user Bühler Technolo-
gies GmbH can not be held responsible for any damage,
– when complying with the specifications and markings on the nameplates.
– the performance limits given in the datasheets and in the installation- and operation instruction are obeyed,
– monitoring devices and safety devices are installed properly,
– service and repair is carried out by Bühler Technologies GmbH,
– only original spare parts are used.
This manual is part of the equipment. The manufacturer keeps the right to modify specifications without advanced notice. Keep
this manual for later use.
Signal words for warnings
DANGER
Signal word for an imminent danger with high risk, resulting in severe injuries or death if not avoided.
WARNING
Signal word for a hazardous situation with medium risk, possibly resulting in severe injuries or death if not
avoided.
CAUTION
Signal word for a hazardous situation with low risk, resulting in damaged to the device or the property or
minor or medium injuries if not avoided.
NOTICE
Signal word for important information to the product.
Warning signs
These instructions use the following warning signs:
Warns of a general hazard Unplug from mains
Voltage warning Wear respiratory equipment
Warns not to inhale toxic gasses Wear a safety mask
Warns of corrosive liquids Wear gloves
General information
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2.2 General hazard warnings
The equipment must be installed by a professional familiar with the safety requirements and risks.
Be sure to observe the safety regulations and generally applicable rules of technology relevant for the installation site. Prevent
malfunctions and avoid personal injuries and property damage.
The operator of the system must ensure:
– Safety notices and operating instructions are available and observed,
– The respective national accident prevention regulations are observed,
– The permissible data and operational conditions are maintained,
– Safety guards are used and mandatory maintenance is performed,
– Legal regulations are observed during disposal,
– compliance with national installation regulations.
Maintenance, Repair
Please note during maintenance and repairs:
– Repairs to the unit must be performed by Bühler authorised personnel.
– Only perform conversion-, maintenance or installation work described in these operating and installation instructions.
– Always use genuine spare parts.
Always observe the applicable safety and operating regulations in the respective country of use when performing any type of
maintenance.
The method for cleaning the devices must be adapted to the IP protection class of the devices. Do not use cleaners which could
damage the device materials.
DANGER Toxic, acidic gases/liquids
Protect yourself from toxic, corrosive gasses/liquids when performing any type of work.
Wear appropriate protective equipment.
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3 Transport and storage
Only transport the product inside the original packaging or a suitable alternative.
The equipment must be protected from moisture and heat when not in use. It must be stored in a covered, dry, dust-free room
at room temperature.
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4 Setup and connection
DANGER Electric voltage
Risk of electric shock
a) Always disconnect the unit from the mains before performing work.
b) Secure the equipment from accidental restarting.
c) The equipment may only be installed, maintained and put into operation by instruc-
ted, competent personnel.
d) Always observe the applicable safety regulations for the operating site.
DANGER Toxic, acidic gases/liquids
Protect yourself from toxic, corrosive gasses/liquids when performing any type of work.
Wear appropriate protective equipment.
4.1 Installation
When installing directly to the tank, the sensor is screwed into the designated bore on the tank.
When installed with remote display, the display and control unit are mounted to a 35mm (1.4") top-hat rail. The sensor connects
with a line. The connector for the sensor is located at the bottom of the display and control unit. The plugs at the top supply
power and output the signals.
4.2 Electrical connections
Electricity is supplied via plug connectors. Please refer to the appendix for installation dimensions, nominal voltage and plug
configuration.
The temperature switching outputs are PNP transistors (see illustration):
Supply voltage
Note: When measuring the switching output with high-load measuring device inputs or when used as a frequency output, the
load must be set to 10 kΩ between the output and earth (GND) to avoid faulty measurements.
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