Ecotech Serinus 44 - Digital Input Menu

Operation
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3.4.24.2 Analog Output Menu - Current
Main Menu  Communications Menu  Analog Output Menu
These items appear when Output Mode is set to Current.
Current Range
Enables the user to set desired current ranges. The user’s choices
are 0-20mA, 2-20mA or 4-20mA.
4mA Calibration
Enables the user to calibrate the current output at a low point.
Increase/decrease the value until the connected equipment reads
4mA (refer to Section 4.4.1.2).
20mA Calibration
Enables the user to calibrate the current output at a full scale
point (20mA). Increase/decrease the value until the connected
equipment reads 20mA (refer to Section 4.4.1.2).
3.4.25 Digital Input Menu
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 5V.
Active Low means that the event will be triggered when the line is
pulled to 0V.
Example
Here is a typical configuration between an instrument and either a data logger or calibrator (master
device):
1. Set the jumper JP1 to 5V 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 20).
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.