LSI LASTEM M-Log – User’s manual
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3.3.3.2
ELO011 model
The instrument is fitted with a digital input (for sampling of pulse inputs, frequency or digital state)
and an actuator that switches the power supply on pin 9 of the serial port connector 1. The actuator
can be used for sensors that interface to M-Log with serial connection; if configured appropriately
with a logic based on the power level or battery power level, it can be used as fixed power supply
by the connected device.
The following tables show the terminals used to connect sensors and power supply.
Digital
input
Signal
GND
E
F
G
5
12
13
14
15 o 16
Actuator/Alarm output on the serial connector
+V
0V
Pin 9
Pin 5
Sensori con segnale digitale:
3.3.4
Single-ended inputs
Starting from datalogger firmware version 2.10.00 (model ELO011 excluded) it is possible to
double the number of analogue inputs, passing from 4 to 8. This function is available only for
sensors with current signals (this function is called single-ended). Resistive signals, instead, go on
occupying a full single physical input (this function is called differential).
Differential inputs are more immune from electromagnetic disturbances than single-ended ones and,
when possible, they have to be preferred.
