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7.1 –SETPOINTS OUTPUT
7.1.1 – Introduction
An option of 2 or 4 SETPOINTS are available depending on outputs
fitted. Programmable within the full display range, they can be
incorporated to the unit thus providing alarm and control
capabilities by means of individual LED indicators and relay or
transistor outputs. Programming of the set points can configure;
setpoint value, time delay (in seconds), asymmetrical or
symmetrical hysteresis (in counts of display value) and selectable
HI/LO trip action.
The setpoint option consists of an option card that activates its own
programming module, they are totally configurable by the user and
their access can be locked out via software.
These are the control output options available:
OPT4500/2R: 2 Relays SPDT 8 A
OPT4500/4R: 4 Relays SPST 5 A
OPT4500/NPN : 4 NPN outputs
OPT4500/PNP : 4 PNP outputs
7.1.2 –Description of operation
The alarm outputs activate when the display value reaches the
user-programmed value. Independent alarm programming allows
definition of the following basic parameters:
a. COMPARISON NET/ GROSS
In “NET” mode will compare the setpoint value with the display net
value. In “GROSS” mode, the comparison will be with the sum net
+ tare.