ABUS Technologies Log Box-AA Data Logger User Manual
Page 8
ABUS TECHNOLOGIES INC.
8
Log Box-AA
4.3 Input Connections
Both models have the same input connections schema:
Input Signal Connections
Before using the logger, the internal jumpers positioning must be set according to the input type
used. The factory setting of these jumpers is for measurement of Pt100 / Thermocouple / 0-50mV
signals. Figures show some positioning for possible input types.
INPUT SIGNAL
CHANNEL 1
J1 POSITION
CHANNEL 2
J2 POSITION
4-20 mA / 0-20 mA
A
A
Pt100 / Thermocouple / 0-50mV
B
B
0-10V
C
C
J1 and J2 positioning
4.4 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 4-20mA 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 transmitter (pressure,
temperature, etc) to start up and stabilize the output.
Example of the battery switch powering a transmitter.