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Operating Instructions
Transmitter 

Power Supply Unit

SINEAX B 812

B 812 Be        152 025-01    11.05

Camille Bauer LTD
Aargauerstrasse 7
CH-5610 Wohlen/Switzerland
Phone +41 56 618 21 11
Fax +41 56 618 35 35
e-mail: [email protected]
http://www.camillebauer.ch

Contents

  1.  Safety instructions ......................................................................... 1
 

1.1   Symbols ............................................................................... 1

 

1.2  Proper use ........................................................................... 1

  

1.3  Qualifications of the personnel ............................................ 1

    1.4  Repairs and modifications ................................................... 1
  2.  Short description ........................................................................... 1
  3.  Indicator LEDs ............................................................................... 1
  4.  Installation instructions .................................................................. 2
  5.  Mounting the device ...................................................................... 2
  6.  Removal of the device ................................................................... 2
  7.  Dimension drawings ...................................................................... 2
  8.  Electrical connections ................................................................... 2
 

8.1  Connection without HART

®

 terminal .................................... 2

 

8.2  Connection with HART

®

 terminal ......................................... 2

  9.  Commissioning .............................................................................. 3
10.  Technical data ............................................................................... 3
 

10.1  Input ..................................................................................... 3

 

10.2  Intrinsically safe input (Ex version) ....................................... 3

 

10.3  Output .................................................................................. 3

 

10.4  Accuracy .............................................................................. 3

 

10.5  Power supply ....................................................................... 3

 

10.6  Transfer ................................................................................ 3

 

10.7  Galvanic isolation ................................................................. 3

 

10.8  Ambient conditions .............................................................. 3

 

10.9  Various ................................................................................. 3

11.  Versions ......................................................................................... 4
12.  Maintenance .................................................................................. 4
13.  Declaration of conformity .............................................................. 4

1. Safety instructions

1.1  Symbols

The symbols used in this operating instruction indicate dangers and 
they have the following meanings:

Non-compliance could result in functional failures.

Non-compliance could result in functional failures and 
injury to personnel.

1.2  Proper use

  The device is a transducer power supply for the safe isolation of 

4…20 mA signal circuits.

  The device is intended for mounting in industrial installations and 

fulfils the requirements according to EN 61010-1.

  The manufacturer is not liable for damage that is caused by improper 

handling, modifications, or improper use.

  Optional with intrinsically safe input (blue terminals).

 

This  is  an  “associated  apparatus”  and  must  not  be  installed  in  
explosion hazardous areas. The output is not intrinsically safe.

1.3  Qualifications of the personnel

Mounting, installation, and commissioning must only be carried out by 
properly trained and authorized personnel, who have read and understood 
these operating instructions.

1.4  Repairs and modifications

Repairs and modifications must only be carried out at our factory. The 
housing must not be opened. There are no configuration or adjusting 
elements inside the housing.
We reserve the right to make changes to improve the product.

2. Short description

The  device  supplies  the  passive  2-wire  transducer  (4…20  mA)  which 
is connected to the input with a DC voltage, and transmits the signal 
current galvanically isolated 1:1 to the output. The current in the output 
circuit is also supplied by the device. Therefore a passive signal receiver  
(4…20 mA) must be connected.
The  device  is  transparent  for  HART

®

  signals  in  both  directions.  The  

250 

 resistor integrated in the output circuit permits communication 

with  SMART transmitters. 
Open circuit and short circuit in the input circuit are indicated locally by 
a red LED.
The device is single channel execution and is suitable for mounting on 
a top-hat rail.

3. Indicator LEDs

There are two LEDs on the front of the device, which have the following 
meaning:

Marking

Color

Meaning

ON

Green

The LED is on when  
the power supply is on

Red

The LED is on when
the signal is outside 
the normal measuring
range of 4…20 mA

Fig. 1

12. Maintenance

The device is maintenance free. Recalibration of the measured signal 
is not possible.

13. Declaration of conformity

11. Versions

Device Ex-versions [EEx ia] IIC

Power supply

Connection terminals

Order number

60 – 253 V AC / 125 V DC

not plugable

155 102

60 – 253 V AC / 125 V DC

plugable

155 144

20 –   70 V AC/DC

not plugable

155 095

20 –   70 V AC/DC

plugable

155 136

Device standard versions

Power supply

Connection terminals

Order number

60 – 265 V AC/DC

not plugable

155 087

60 – 265 V AC/DC

plugable

155 128

20 –   70 V AC/DC

not plugable

155 079

20 –   70 V AC/DC

plugable

155 110

The instruments must only be disposed of in the  
correct way!

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