ero electronic DPS - 1.3 Options

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1.2.3 ALARMS
Number of alarms: two independent
Threshold: from 0 to 100 % of the readout span.
Hysteresis: programmable from 0.1 to 5.0 % of the readout span.
Type of alarm: High or low alarms programmable.
NOTE : The alarm becomes active at the alarm threshold value and
will be reset at the alarm threshold value plus or minus the
hysteresis value, according to the alarm type.
Reset: Automatic or Manual, programmable.
The manual reset of the alarms is possible by front
pushbuttons individually or by external contact collectively.
Alarm outputs: two relays, SPST, NC or NO selectable by
jumpers.
Contact rating:2A - 30 V DC or 0.6 A - 110 V DC or 0.5 A - 250 V
AC, on resistive load or 0.3 A - 110 V DC on inductive load.
Relay status: relay energized in no alarm condition.
Digital filter: it is possible to set, on the alarm function, a digital filter
with the same time constant chosen for the redout.
Alarms indication: AL1 and AL2 indicators lit for alarm ON status.
1.2.4 ADDITIONAL FUNCTIONS
Peaks detection : visualization of the max. and min. value meas-
ured by the instrument
Digital filter: it is possible to set a digital filter on the displayed value
with a time constant of 0.4, 1, 2, 3, 4 or 5 s. This filter can be set for
analog retransmission and alarms threshold also.
Logic input: one input by contact for manual reset of the alarms
or HOLD function enable.
Safety lock: for protection of the alarms threshold values.
1.3 OPTIONS
1.3.1 COMMUNICATION INTERFACE
Type: RS-485 optoisolated.
Communication type: bi-directional.
Protocol: "Polling/Selecting"
Baud rate: from 150 baud to 19200 baud.
Format: 7 bits + parity bit
8 bits + parity bit
8 bits without parity bit
Parity: odd or even
Stop bit: one