Burkert GENERIC 8400 User manual

Instruction Manual
WALL-MOUNTED TEMPERATURE CONTROLLER
8400
© Bürkert 2001 Subject to technical change without notice

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Wall-mounted Temperature Controller
Table of Contents
1 SAFETY RECOMMENDATIONS .................................................................................... 4
1.1 Utilisation ................................................................................................................... 4
1.2 Precautions at installation and commissioning............................................. 5
1.3 Conformity to standards ........................................................................................ 5
2 DESCRIPTION ....................................................................................................................6
2.1 Design ......................................................................................................................... 6
2.2 Measuring principle ................................................................................................ 6
2.3 Available versions ................................................................................................... 7
2.4 Accessories ............................................................................................................... 7
3 TECHNICAL DATA ............................................................................................................. 8
4 INSTALLATION ................................................................................................................. 10
4.1 General recommendations ................................................................................. 10
4.2 Mounting .................................................................................................................. 10

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4.3 Electrical connection ............................................................................................ 11
4.3.1 Connectors .................................................................................................... 11
4.3.2 Wiring of the controller M12 fixed connectors ................................... 12
5 PROGRAMMING ............................................................................................................. 14
5.1 General recommendations ................................................................................. 14
5.2 Functionalities ........................................................................................................ 14
5.3 Programming keys ................................................................................................ 15
5.4 Default Configuration ........................................................................................... 15
5.5 Normal Mode .......................................................................................................... 16
5.6 Possible switching modes of the 8400 ........................................................... 17
5.7 Calibration Mode ................................................................................................... 18
5.8 Simulation Mode ................................................................................................... 21
6 MAINTENANCE ................................................................................................................ 22
6.1 Cleaning ................................................................................................................... 22
6.2 Error messages ...................................................................................................... 22
7 ANNEX ............................................................................................................................... 24
7.1 Example of connection with the 8400 ............................................................. 24
7.2 Description of the label of the controller 8400 ............................................. 24

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Wall-mounted Temperature Controller
1 SAFETY RECOMMENDATIONS
Always respect the safety instructions marked by the symbol
opposite as well as those included in the manual.
1.1 Utilisation
The 8400 controller has been designed to measure the temperature of
a liquid or a gas.
There will be no manufacturer warranty for damages caused by
unexpected handling or wrong usage of the device. The warranty on the
device becomes invalid if any modification or change is made on the
device.

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The device should only be installed and repaired by specialist staff.
The user is not allowed to work on the cables inside the housing.
If any difficulties may occur with the product during installation,
please contact your nearest Bürkert sales office for assistance.
1.2 Precautions at installation and commissioning
- When the device is powered and the cover is open, protection
against electric shocks is not ensured.
- To clean the device, only use chemically compatible products.
- Protect the controller from electromagnetic perturbations and,
when installed outside, protect it from the rain and ultraviolet
radiations.
1.3 Conformity to standards
EMC: EN 50 081-1 (1992), 50 082-2 (06-1995)
Security: EN 61 010-1 (1993, A2-1995)

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Wall-mounted Temperature Controller
2.1 Design
The temperature controller 8400 is an electronic module which has to
be inserted into an holder previously mounted on a wall. It must be
associated to a remote 3-wire Pt100 temperature sensor (for example,
an ST21 sensor). It may switch a solenoid valve, activate an alarm or
establish a control loop.
The switching point can be adjusted by means of the three keys located
under the display.
The electrical connection is carried out via a 5-pin-M12 male connector
and a 4-pin-M12 female connector.
2.2 Measuring principle
The controller 8400 measures the resistance of the remote Pt100
sensor.
2 DESCRIPTION
8400
Wall-mounted
holder

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2.3 Available versions
Order code of the wall-mounted 8032 controller: 448862
2.4 Accessories
Order code table for the accessories
Order codes
M12 female connector, 5 pins, to be wired 917116
M12 female connector, 5 pins, moulded on a shielded cable (2 m) 438680
M12 male connector, 4 pins, to be wired 448856
M12 male connector, 4 pins, moulded on a shielded cable (2 m) 448857

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Wall-mounted Temperature Controller
3 TECHNICAL DATA
General features
Measuring range -40° C...+125° C (-40° F…+257° F)
Switching accuracy ±0.5° C (0...80° C)
±1° F (+32° F…+176° F)
±1.5° C (outside 0...80° C)
±2.5° F (outside +32° F…+176° F)
Repeatability 0.4%
Electrical features
Installation class
(overvoltage class) 2
Power supply 12-30 VDC
Insulating strength 2300 VAC
Max current consumption 750 mA (with load); 50 mA (without load)
Protection against
polarity reversal yes
Transistor output NPN and PNP, max. 700 mA
NPN output: max. 30 VDC
PNP output: controller supply voltage
Protection against
short-circuits yes for the transistor output
Type of cable recommended - power supply: shielded, wire section between 0.14 and 0.5 mm2
- connection of the remote Pt100 sensor: max. length 10 m, max. wire section 0.5 mm2 ,
wire resistance < 2 Ωat ambient temperature

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Electrical connection
NPN/PNP version M12 female connector, 5 pins (not supplied) and M12 male connector, 4 pins (not supplied)
Housing
Housing material polycarbonate +20% of fiber glass
Front plate polyester
Wall-mounted holder PVC
Environment
Ambient temperature 0 to +60° C (+32° F to +140° F)
Relative humidity < 80%
Dimensions (mm)
54.2
62
12
80
13.5
M12, 4 pins
M12, 5 pins

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Wall-mounted Temperature Controller
4.1 General recommendations
Always check the chemical compatibility of the materials the controller
is made of with the products it may be in contact with, for instance:
alcohols, strong or concentrated acids, aldehydes, bases, esters,
aliphatics, aromatics, ketones, aromatics or halogenated hydrocarbons,
oxidizing agents and chlorinated products.
For more information, please contact your Bürkert sales office.
4.2 Mounting
- Select the location of the holder on a wall, then drill 4 holes by
respecting the hole-to-hole distances indicated on the opposite
schematic and mount the holder using 4 screws.
- Insert the controller in the holder as shown in the figure below.
4 INSTALLATION
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2
3
40 mm
30,5 mm
12 mm
3 mm
ø 7,4 mm
ø 4,7 mm