Buhler TC-MINI Owner's manual

Gas Analysis
Installation and Operation Instructions
Original instructions
Sample gas cooler
TC-MINI
BE440015
04/2023
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 2023
Document information
Document No.......................................................... BE440015
Version.........................................................................04/2023

TC-MINI
Contents
1 Introduction.....................................................................................................................................................................................................................2
1.1 Intended use .........................................................................................................................................................................................................2
1.2 Types........................................................................................................................................................................................................................2
1.3 Scope of delivery ..................................................................................................................................................................................................2
1.4 Ordering instructions.........................................................................................................................................................................................2
2 Safety instructions ......................................................................................................................................................................................................... 3
2.1 Important advice ................................................................................................................................................................................................. 3
2.2 General hazard warnings .................................................................................................................................................................................4
3 Transport and storage .................................................................................................................................................................................................. 5
4 Installation and connection ........................................................................................................................................................................................6
4.1 Installation site requirements.........................................................................................................................................................................6
4.2 Installation ............................................................................................................................................................................................................6
4.2.1 Connecting the filter gas connections (optional) ....................................................................................................................... 7
4.2.2 Flow adapter connection (optional) ............................................................................................................................................... 7
4.2.3 Connecting the moisture detector (option) ................................................................................................................................. 7
4.3 Electrical connections......................................................................................................................................................................................... 7
4.4 Settings...................................................................................................................................................................................................................9
5 Operation and control .................................................................................................................................................................................................11
5.1 Status Signal via LEDs and Status Relay ......................................................................................................................................................11
5.2 Using the Digital Interface...............................................................................................................................................................................11
5.3 Modbus Configuration .....................................................................................................................................................................................11
5.4 Modbus Communication................................................................................................................................................................................ 12
5.5 Modbus Register................................................................................................................................................................................................ 13
6 Maintenance...................................................................................................................................................................................................................17
7 Service and repair......................................................................................................................................................................................................... 18
7.1 Troubleshooting ................................................................................................................................................................................................ 19
7.2 Safety instructions ........................................................................................................................................................................................... 20
7.3 Cleaning and removal of the heat exchanger.......................................................................................................................................... 20
7.4 Replacing the fuse of the cooler................................................................................................................................................................... 20
7.5 Replacing the filter element (option) .......................................................................................................................................................... 21
7.6 Drying of the moisture detector (option)................................................................................................................................................... 21
7.7 Spare parts .......................................................................................................................................................................................................... 21
7.7.1 Consumables and accessories ........................................................................................................................................................22
8 Disposal ...........................................................................................................................................................................................................................23
9 Appendices .....................................................................................................................................................................................................................24
9.1 Gas cooler technical data................................................................................................................................................................................24
9.2 Technical Data - Options .................................................................................................................................................................................24
9.3 Dimensions (mm)..............................................................................................................................................................................................25
9.4 Performance data..............................................................................................................................................................................................25
9.5 Heat exchanger..................................................................................................................................................................................................26
9.5.1 Heat exchanger description............................................................................................................................................................26
9.5.2 Heat exchanger overview ................................................................................................................................................................26
10 Attached documents ...................................................................................................................................................................................................27
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1 Introduction
1.1 Intended use
This unit is intended for industrial use in gas analysis systems. It's an essential component for conditioning the sample gas to
protect the analysis instrument from residual moisture in the sample gas.
Please note the specifications in the data sheet on the specific intended use, existing material combinations, as well as pressure
and temperature limits.
1.2 Types
The device is delivered with different configurations. The part number given on the type plate informs you about the specific
configuration of your device.
1.3 Scope of delivery
– Cooler
– Product documentation
– Connection-/mounting accessories (optional)
1.4 Ordering instructions
4496 1 1 1 X 0 4 X X X 0 0 X X X 0 0 0 0 Product Characteristics
Gas cooler models (with 1 heat exchanger)
1 TC-MINI 6111: moderate ambient temperature 40°C
2 TC-MINI 6112: higher ambient temperature 50°C
Certifications
0 Standard applications – CE
Supply voltage
4 24 V DC
Heat exchanger 1)
1 1 0 0 0 Stainless steel, MTS, metric
1 1 5 0 0 Stainless steel, MTS-I, US
1 2 0 0 0 Duran glass, MTG, metric
1 2 5 0 0 Duran glass, MTG, US
1 3 0 0 0 PVDF, MTV, metric
1 3 5 0 0 PVDF, MTV-I, US
1 6 0 0 0 Stainless steel, angle connector, MTS-WS, metric
1 6 5 0 0 Stainless steel, angle connector, MTS-I-WS, US
Moisture detector/filter
0 0 without filter, without moisture detector
0 1 without filter, 1 moisture detector with block
1 0 1 filter, without moisture detector
1 1 1 filter with built-in moisture detector
Signal outputs
1 0 0 0 0 Analog output, 4..20 mA, incl. status output
2 0 0 0 0 Modbus RTU digital output, incl. status output
1) Moisture detector/filter screw-in fitting and tubes metric or US, accordingly
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2 Safety instructions
2.1 Important advice
Operation of the device is only permitted 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
Warns not to inhale toxic gasses Wear respiratory equipment
Warns of corrosive liquids Wear a safety mask
Warns of explosive areas 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.
– the device is protected from mechanical loads.
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.
– Do not install damaged or defective spare part. If necessary, visually inspect prior to installation to determine any obvious
damage to the spare parts.
Always observe the applicable safety and operating regulations in the respective country of use when performing any type of
maintenance.
DANGER Toxic, corrosive gas/condensate
Sample gas/condensate may be hazardous to health.
a) If necessary, ensure a safe gas/condensate discharge.
b) Always disconnect the gas supply when performing maintenance or repairs.
c) Protect yourself from toxic/corrosive gasses/condensate when performing mainten-
ance. Wear appropriate protective equipment.
DANGER Potentially explosive atmosphere
Explosion hazard if used in hazardous areas.
The device is not suitable for operation in hazardous areas with potentially explosive at-
mospheres.
Do not expose the device to combustible or explosive gas mixtures.
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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 and dust-free
room at a temperature of -20 °C to 60 °C (-4 °F to 140 °F).
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4 Installation and connection
4.1 Installation site requirements
The unit is only intended for wall-mounted use in enclosed areas. Adequate protection from the weather must be provided
when used outdoors.
Install the unit leaving enough room below the cooler to discharge the condensate. Leave room above for the gas supply.
Be sure to maintain the approved ambient temperature. Do not obstruct the convection of the cooler. The vents must have
enough room to the next obstacle. The distance must especially be a minimum of 10 cm on the air outlet side.
Ensure adequate ventilation when installing in enclosed housings, e.g. analyser cabinets. If the convection is inadequate, we re-
commend aerating the cabinet or installing a fan to lower the inside temperature.
When wall mounting the sample gas cooler, be sure the wall or the cabinet provide adequate weight bearing and stability.
4.2 Installation
Run the gas supply to the cooler with a downward slope. The gas inputs are marked in red and additionally labelled "IN".
If a large amount of condensate accumulates, we recommend using a condensate trap with automatic condensate drain. Our
condensate drains, 11LDV38, AK20, AK5.5 OR AK5.2, are suitable.
Glass vessels and automatic condensate drains are available for draining condensate for external mounting below the unit.
When using automatic condensate drains, the sample gas pump must be installed upstream of the cooler (pressure operation)
to ensure proper function of the condensate drain.
If the sample gas pump is located at the cooler outlet (suction operation), we recommend using glass condensate traps or peri-
staltic pumps.
Connecting the condensate drains
Depending on the material, build a connecting line with fittings and tubing or hose between the heat exchanger and condens-
ate drain. For stainless steel the condensate drain can be suspended directly to the connecting tube, for hoses the condensate
drain must be secured separately using a clamp.
The condensate drain can be mounted directly to the heat exchanger.
Condensate lines must always be installed with a slope and a minimum inside diameter of DN 8/10 (5/16”), with passive dis-
charge via traps or automatic condensate drains. Use screw joints with a minimum inner span of 7 mm, sold separately as ac-
cessories. The MTG heat exchanger in glass cannot be operated in conjunction with an automatic condensate drain.
Connecting the heat exchanger
The gas inputs are marked in red.
On glass heat exchangers the correct position of the seal is important when connecting the gas lines (see image). The seal con-
sists of a silicone ring with a PTFE sleeve. The PTFE side must face the glass thread.
Glass PTFE
Pay attention to the appropriate spanner size when selecting fittings for stainless steel heat exchangers.
TS/TS-I gas connections: SW 17
TS/TS-I condensate out connections: SW 22
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4.2.1 Connecting the filter gas connections (optional)
The connection G1/4 or NPT 1/4” (filter head marked NPT) for the gas outlet must be carefully and properly connected using a
suitable screw connection.
When ordering the cooler with the option filter without Moisture detector, a bypass may be connected to the filter head.
The filter head is intended for a G1/4 internal screw thread which is plugged at the factory. To use it, unscrew the plug and screw
in a suitable screw connection. Pay attention to leaks.
NOTICE
Installing filters limits the maximum approved operating pressure in the system!
Operating pressure ≤ 2 bar
4.2.2 Flow adapter connection (optional)
When ordering the cooler with the option moisture detector without filter, it will be factory installed inside a flow adapter.
The connection between the heat exchanger outlet and the flow adapter inlet does not have tubing included. The connection
G1/4 or NPT1/4" (flow adapter marked NPT) for the gas inlet/outlet must be carefully and properly connected using a suitable
screw connection. Here the direction of flow is not relevant.
4.2.3 Connecting the moisture detector (option)
When ordering the cooler with moisture detector option, it will be factory installed inside a flow adapter, or for the filter option
installed and connected in the filter head.
4.3 Electrical connections
NOTICE
The connection must be made by a trained professional.
CAUTION Wrong mains voltage
Wrong mains voltage may damage the device.
Regard the correct mains voltage as given on the type plate.
The sample gas cooler features plug-in connectors at the top for connecting the power supply and the status outputs.
The unit features an output for status messages. Please refer to the technical data for ratings.
An alarm is triggered if the temperature of the cooler is outside the specified limits. It does not indicate if the alarm was
triggered due to excess temperature or insufficient temperature.
When the moisture detector (optional) is installed, an alarm is activated if the moisture is still present in the prepared sample
gas. This is the same alarm output as for the temperature.
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X2.5X2.1
X2.10
X2.6
X1.1
DIP Switch / Settings
LED green
LED red
Inputs/outputs Terminal Function Description
Moisture detector X1.1 FF.1 (white) Moisture detector
X1.2 FF.2 (brown)
X1.3 FE: Shield for moisture detector inlet
Status X2.1 Status NC (Alarm) Alarm/Status
Changeover contact, potential-free,
Ratings see technical data
X2.2 Status COM
X2.3 Status NO (ok)
24 V input X2.4 24 V DC - Power supply
X2.5 24 V DC +
Analog output X2.6 FE: Shield for analog output
X2.7 mA + Analog output
4…20 mA, 0 - 80 °C
X2.8 mA -
Digital output X2.6 FE: Shield for digital output
X2.7 Signal A Communication line for digital interface
X2.8 Signal B
24 V output * X2.9 24 V DC - Supply for optional add-on units
maximum current, see technical data
X2.10 24 V DC +
* Add-on units, e.g. a pump, with 24 V supply can be connected to the output, switched via the status output. The 24 V supply
must then be configured appropriately (see data sheet).
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4.4 Settings
Remarks on outlet dew point
Not all applications require an outlet dew point of 5 °C. In some applications a higher dew point is sufficient. In other applica-
tions a stable outlet dew point doesn’t matter, it’s enough for the gas to be dry, so for the outlet dew point to have an adequate
difference in temperature below the ambient temperature.
The advantage of a higher outlet temperature is that at a given ambient temperature the Peltier cooler provides significantly
more cooling performance. So on the e.g. TC-MINI version model 6111, at an ambient temperature of 40 °C this means:
Outlet dew point: 5 °C 10 °C 15 °C
Available cooling capacity: 16 kJ/h 28 kJ/h 39 kJ/h
To fully utilize these advantages, the electronics feature several parameter settings:
1. Adjustable outlet dew point
An outlet dew point of 3, 5, 10 or 15 °C can be set to reach the specified values. Here it’s important the ambient temperature
is always ABOVE the outlet dew point setting, or condensation may form in the lines after the cooler. So the ambient tem-
perature range is limited.
2. Delta-T Control
Here the electronics measures the ambient temperature an regulates the outlet dew point to a an about 15 °C or 30 °C lower
value, but no less than the dew point set under 1. This extends the potential cooling capacity to the limits of the heat ex-
changer. Here it’s important to note the outlet dew point fluctuates along with the ambient temperature and a stable dew
point cannot be a prerequisite for the measurement.
As seen in the following graphics using the TC-MINI 6111 as an example, a difference of 15 °C from the ambient temperature
means the focus is on drying the sample gas. The stability of the dew point then takes a backseat to the high performance
which can be achieved.
At a difference of 30 °C, at a set outlet dew point of 10 °C this means the dew point remains stable up to an ambient temper-
ature of approx. 40 °C, and the safe drop is only preferred over the ambient temperature with ambient temperature peaks
over 40 °C.
Cooling capacity in kJ/h
Output dew point
10 °C
Ambient temperature in °C
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DIP switch
The unit is configured using four DIP switches at the front of the cooler.
SW1
SW2
SW3
SW4
0
0
0
0
1
1
1
1
1 ON switch
0 OFF switch
SW Switch, the following numbering of the SWs corresponds with the numbering on the DIP
switch.
SW1 / SW2 SW2 SW1 Gas output dew point
0 0 3 °C
0 1 5 °C (factory setting)
1 0 10 °C
1 1 15 °C
SW3 / SW4 SW3 SW4 Delta-T control/digital interface
0 0 Gas output dew point, fixed
0 1 Difference from ambient temperature approx. 15 °C
1 0 Difference from ambient temperature approx. 30 °C
1 1 Modbus option active (only with optional Modbus RTU digital output)
Using the Modbus RTU option
On devices with Modbus option, the DIP switches are set so the digital interface is active. With the interface active, it’s import-
ant the switch settings SW1 and SW2 are not relevant for the cooler function. In this case, the cooler uses the values in the re-
gisters.
When disabling the digital interface with the DIP switch, the settings apply based on the DIP switches again. The Modbus re-
gisters will not be overwritten.
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5 Operation and control
NOTICE
The device must not be operated beyond its specifications.
After switching on the supply voltage the cooler starts to cool the cooling block. When switched off the contact between X2.1 and
X2.2 is closed.
The target temperature is factory preset to 5 °C. The alarm limit is defined at +5/-2 K.
(Note deviating defaults with Modbus option enabled, see Modbus register table).
5.1 Status Signal via LEDs and Status Relay
LED
green
LED
red
Status Condition
internal
FF Temperature Description
OFF OFF X2.1, X2.2 Unit off With the cooler switched off, the status out-
put corresponds error status.
ON OFF X2.1, X2.3 OK OK (*) OK Normal operation
OFF Flashing
f = 1 Hz
X2.1, X2.2 OK OK (*) Error Overload / temperature outside the target
range
OFF ON X2.1, X2.2 OK Error xxx Moisture penetration
OFF Flashing
f = 5 Hz
X2.1, X2.2 Error xxx xxx Various possible causes, contact Service.
OK No error
Error Error present
xxx Status not defined
f =… LED flash frequency
X2.1, X2.2… Markings on terminals
(*) Also applies if no moisture detector connected
If the red LED lights up during operation, please refer to chapter ““.Troubleshooting [> page19]“.
5.2 Using the Digital Interface
The digital interface on this device is a Modbus RTU protocol, which physically communicates via RS485 (2-wire). The cooler
therefore takes on the role of the slave in communication.
The Modbus interface enables direct access to process and diagnostic data and parameters during operation.
5.3 Modbus Configuration
The settings below are the defaults; the parameters can be adjusted if the interface is enabled.
1 start bit
8 data bits
1 parity bits (configurable)
1 stop bit (*)
Baudrate: 19200 bps (configurable)
Device ID: 10 (configurable)
(*) The length of a Modbus frame is always 11bit, configuring the interface at 0 data bits automatically changes the number of
stop bits to 2.
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5.4 Modbus Communication
Communication via Modbus RTU is always imitated by the master (request). The slave (typically) responds to the request with a
response. A Modbus RTU frame for a request/response always has the following structure:
Address field (A) Function code (FC) Data CRC
1 byte 1 byte 1 … 252 bytes 2 bytes
Register addresses and data are transferred in Big Endian format.
Every register stands for a 16bit value, with the information represented in various data types. The data type and required func-
tion code are assigned to the respective registers in the following tables.
To read/write data types with sizes larger than an individual register, multiple registers must be addressed.
Supported function codes:
Function code (FC) FC values
Read Holding Registers 3
Write Multiple Registers 16
Data types:
Description Number of bytes Number of registers
Float 4 2
Int16 2 1
Uint16 2 1
Int32 4 2
Uint32 4 2
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5.5 Modbus Register
Description FC Address Access Data type Default Min Max Selection Resolution Unit
Block temperature measurement 3 2000 R Float - - - - 0.5 °C
Block temperature status 3 2002 R Uint32 - - - Bit 0 : = error
Bit 1..15 := reserved
Bit 16 := sensor not calibrated
Bit 17 := initialization / measurement in-
valid
Bit 18 := stabilization phase
Bit 19 := load limit reached
Bit 20 := measurement outside target
range
Bit 21..31 := not used
Ambient temperature measurement 3 2004 R Float - - - - 0.5 °C
Ambient temperature status 3 2006 R Uint32 - - - Bit 0 : = error
Bit 1..15 := reserved
Bit 16 := sensor not calibrated
Bit 17 := initialization / measurement in-
valid
Bit 18..31 := not used
Block temperature setpoint 3, 16 5000 R/W Float 5.0 3.0 15.0 - 0.5 °C
Positive alarm tolerance setpoint 3, 16 5002 R/W Float 3.0 1.0 7.0 - 1.0 K
Negative alarm tolerance setpoint 3, 16 5004 R/W Float -3.0 -3.0 -1.0 - 1.0 K
Temperature difference Delta-T 3, 16 5008 R/W Float -15.0 -30.0 0.0 - 1.0 K
Enable/disable Delta T 3, 16 9001 R/W Uint16 0 - - 0 := normal operation
1:= Delta-T control
1 -
Signal store
Moisture detector error
3, 16 9002 R/W Uint16 2 - - 1 := no
2 := yes
1 -
Signal store
Moisture alarm
3, 16 9003 R/W Uint16 1 - - 1 := no
2 := yes
1 -
Sensitivity moisture detector 1 3, 16 9004 R/W Uint16 0
1 (with moisture detector)
2 (without moisture de-
tector)
- - 0 := sensitivity low
1 := sensitivity high
2 := moisture detector inactive
Modbus Baudrate selection 3, 16 9009 R/W Uint16 3 - - 1 := 4800
2 := 9600
3 := 19200
- -
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Description FC Address Access Data type Default Min Max Selection Resolution Unit
4 := 38400
5 := 57600
6 := 115200
Modbus Parity selection 3, 16 9010 R/W Uint16 2 - - 0 := none
1 := odd
2 := even
1 -
Modbus Device address selection 3, 16 9011 R/W Uint16 10 1 247 - 1 -
TEST 3 9990 R Uint32 12648430 - -
TEST_UINT16 3, 16 9992 R/W Uint16 206 0 65535 - 1 -
TEST_INT16 3, 16 9993 R/W Int16 -206 -32768 32767 - 1 -
TEST_UINT32 3, 16 9994 R/W Uint32 2766 0 0xffffffff
TEST_INT32 3, 16 9996 R/W Int32 -2766 0x800
00000
0x7fffffff
TEST_Float 3, 16 9998 R/W Float -10.5
Status register overview 3 10000 R Uint16 0 - - Bit 0 := status information at
Register 10001
Bit n := status information at
Register 10000 + n + 1
Condition code register 1 3 10001 R Uint16 0 - - Bit 0 := device status
Bit 1 := device in error status
Bit 2 := set temperature range overrun
Bit 3 := set temperature range underrun
Bit 4 :=
Bit 5 :=
Bit 6 := moisture detector connected
Bit 7 :=
- -
Condition code register 2 3 10002 R Uint16 0 - - Bit 0 :=
Bit 1 :=
Bit 2 := initialization phase
Bit 3 := Delta-T active
Bit 4 :=
Bit 5 :=
Bit 6 := FF1 moisture alarm
Bit 7 :=
- -
Condition code register 3 3 10003 R Uint16 0 Bit 0 :=
Bit 1 :=
Bit 2 :=
Bit 3 :=
Bit 4 :=
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Description FC Address Access Data type Default Min Max Selection Resolution Unit
Bit 5 :=
Bit 6 :=
Bit 7 :=
Condition code register 4 3 10004 R Uint16 0 Bit 0 :=
Bit 1 :=
Bit 2 :=
Bit 3 :=
Bit 4 :=
Bit 5 :=
Bit 6 :=
Bit 7 :=
Error register 1 3 10005 R Uint16 0 Bit 0 :=
Bit 1 := controller communication error
Bit 2 :=
Bit 3 := controller configuration error
Bit 4 :=
Bit 5 :=
Bit 6 :=
Bit 7 := gen. software error
Error register 2 3 10006 R Uint16 0 Bit 0 :=
Bit 1 :=
Bit 2 :=
Bit 3 :=
Bit 4 :=
Bit 5 :=
Bit 6 :=
Bit 7 :=
Error register 3 - moisture detector 1 3 10007 R Uint16 0 Bit 0 :=
Bit 1 :=
Bit 2 := cable break
Bit 3 :=
Bit 4 :=
Bit 5 :=
Bit 6 :=
Bit 7 :=
Error register 5 - PT100.1 3 10009 R Uint16 0 - - Bit 0 := general error
Bit 1 := short-circuit / temperature low
Bit 2 := cable break / temperature high
Bit 3 := measurement fluctuation
Bit 4 :=
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Description FC Address Access Data type Default Min Max Selection Resolution Unit
Bit 5 :=
Bit 6 :=
Bit 7 :=
Error register 6 - PT100.2 3 10010 R Uint16 0 - - Bit 0 := general error
Bit 1 := short-circuit / temperature low
Bit 2 := cable break / temperature high
Bit 3 := measurement fluctuation
Bit 4 :=
Bit 5 :=
Bit 6 :=
Bit 7 :=
Utilisation controller 1 3 10017 R Uint16 - 0 100 10 %
Device run time 3 10100 R Float - 0 - 6 min h
Device restart / device reset 16 11000 W Uint16 0 - - 86 := device restart
17:= factory reset
Reset moisture detector 1 16 11002 W Uint16 170 - - -
Example:
Register 5000 = 0x1388
Read block temperature set values
A FC Start register HI Start register LO No. register HI No. register LO CRC CRC
Request 0x0A (10) 0x03 (3) 0x13 0x88 0x00 (0) 0x02 (2) 0x41 0xDE
A FC No. of byte DATA 3 DATA 2 DATA 1 Data 0 CRC CRC
Response 0x0A (10) 0x03 (3) 0x04 0x40 0xA0 0x00 0x00 0x55 0x11
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6 Maintenance
The basic version of the cooler requires no special maintenance.
However, it may have different options depending on the configuration ordered. In this case the following routine maintenance
is required:
Filter option: Check filter element (see chapter Replacing the filter element (option) [> page21].
During maintenance, remember:
– The equipment must be maintained by a professional familiar with the safety requirements and risks.
– Only perform maintenance work described in these operating and installation instructions.
– Observe the respective safety regulations and operating specifications when performing any type of maintenance.
– Always use genuine spare parts.
DANGER Toxic, corrosive gas/condensate
Sample gas/condensate may be hazardous to health.
a) If necessary, ensure a safe gas/condensate discharge.
b) Always disconnect the gas supply when performing maintenance or repairs.
c) Protect yourself from toxic/corrosive gasses/condensate when performing mainten-
ance. Wear appropriate protective equipment.
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7 Service and repair
This chapter contains information on troubleshooting and correction should an error occur during operation.
Repairs to the unit must be performed by Bühler authorised personnel.
Please contact our Service Department with any questions:
Tel.: [phone] or your agent
For further information about our services and customised maintenance visit http://www.buehler-technologies.com/service.
If the equipment is not functioning properly after correcting any malfunctions and switching on the power, it must be inspected
by the manufacturer. Please send the equipment inside suitable packaging to:
Bühler Technologies GmbH
- Reparatur/Service -
Harkortstraße 29
40880 Ratingen
Germany
Please also attach the completed and signed RMA decontamination statement to the packaging. We will otherwise be unable to
process your repair order.
You will find the form in the appendix of these instructions, or simply request it by e-mail:
[email protected].
18 Bühler Technologies GmbH BE440015 ◦ 04/2023