Ecotech Acoem Serinus 10 - Digital Input Menu; Figure 57 - Digital Input Menu Screen

Serinus® 10 User Manual 3.2
Page 82
3.4.28 Digital Input Menu
Figure 57 – Digital Input Menu Screen
Main Menu → Communications Menu → Digital Input Menu
This menu is used to remotely trigger zero and span calibrations. This is done by assigning the eight
digital inputs with one of the following commands.
DI N (Pin X)
Associates an action with a digital input. There are eight digital
inputs (the pin numbers are for the 25 pin connector). Each
one can have one of the following associated actions,
triggered when the corresponding digital input goes to the
Active state:
▪ Disabled: No action (this digital input does nothing).
▪ Do Span: Used to perform a span precision check. When
activated the instrument sets the Cal. Mode to Span (refer
to Section 3.4.10.1).
▪ Do Zero: Used to perform a zero precision check. When
activated the instrument sets the Cal. Mode to Zero (refer
to Section 3.4.10.1).
Active
Each pin can be set to be active High or Low. Active High
means that the event will be triggered when the line is pulled
to 5 V. Active low means that the event will be triggered when
the line is pulled to 0 V.
Example
Here is a typical configuration between an instrument and either a data logger or calibrator (master
device):
1. Set the jumper JP1 to 5 V position (refer to Section 4.4.3).
2. Connect one of the master devices digital output signals to pin 18 and the ground signal to pin 5 of
the instrument’s analog/digital 25 pin female connector (refer to Figure 74).
3. Program master device to output 0 volts to pin 18 when a span is desired.
4. In the instrument’s Digital Input Menu assign DI 0 → Do Span - Accept.