INSTRUCTION MANUAL
Technical changes reserved
B+B 0141 0315-21 June 2011
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
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9.2. Input Connections
Both models have the same input connections schema:
In the IP67 version, an M8 connector is provided for signal input. Two connectors provide external access to the input
channels as shown in the figure. The cables are supplied with the logger.
Note: The case cover should not be opened unless it is really necessary. If this is the case, the cover must be properly
tightened back in its place such as to assure Ingress protection IP67.
IP67 - Totally dust-tight and protected from temporary immersion in water.
9.3. External Battery Switch
The example below shows the usage of the external battery switch for commanding the power supply of external devices.
Channel 1 is configured to 4-20 mA input signal. A battery is used to provide power to the 4-20 mA loop. The battery switch
“turns on” the power to the loop a moment (defined in the configuration) before the measurement is taken, enabling the trans
-
mitter (pressure, temperature, etc.) to start up and stabilize the output.
9.4. Digital Input (DE)
The Digital Input can be used to externally trigger the start and stop of readings. It is available in terminals
7 (-) and 10 (+) of CN2.
Input signal
Channel 1, J1 position
Channel 2, J2 position
4-20 mA / 0-20 mA
A
A
Pt100 / Thermocouple / 0-50 mV
B
B
0-10 V
C
C
