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PRESYS
⏐ Instruments
Alarm Output Type
SPST Relay
Solid state relay
Open collector voltage
Table 3 - Types of alarm output for outputs 1 and 2
Outputs 3 and 4 as alarm outputs
Outputs 3 and 4 are used as alarms when the optional modules corresponding to
connectors MOD 3 and MOD 4 are installed. There are three types of alarm output
available: SPDT relay, solid state relay and open collector voltage. The alarm output type
and the optional module correspondence are shown in table 4.
Alarm Output Type
SPDT Relay
Solid state relay
Open collector voltage
4.5 - Calibration
The outputs of DMY-2030-F and DMY-2030-F Light Indicators are accurately
calibrated in factory and do not need periodic calibration in normal conditions. There is
no need for calibrating the frequency inputs because the input reading is accomplished
by a microcontroller with an accurate timebase.
When output calibration is required, follow this procedure below.
Disconnect the process signals of I/O terminals.
Before calibrating the instrument, keep it turned on for at least 30 minutes for
warm up.
Output Calibration
For the output calibration, follow this procedure for retransmitter outputs 1 and 2.
The retransmitter outputs are calibrated with the aid of a calibrator which reads
the output signal. The accuracy and precision of the calibrator must be at least two times
better than the specifications of the Indicator output.
Check if the jumpers on the optional output modules are placed according to the
type of output to be calibrated (0 to 5V, 0 to 10V or 0 to 20mA).
To perform the calibration, enter level 5 of Calibration. The calibration level has a
password system which avoids someone to enter this level accidentally and damage any
calibration parameter. The password for entering this level is number 5.
Figure 22 shows the output calibration options in level 5 of Calibration.
Maintenance
Page 30
Table 4 - Alarm output types for outputs 3 and 4
DMY-2030-F / DMY-2030-F Light
Optional Module Code
MALRE - 20
MALRS - 20
MSD - 20
Optional Module Code
MALRE - 20
MALRS - 20
MSD - 20
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