8 Set Point Relays
23
8.1
Set Point Source
Each set point relay can be disabled or triggered from a sensor input (the default), a
temperature input or from an alarm.
8.2
Set Point Trigger
The set points can be configured to trigger from the sensor or temperature source in
six ways:
Trig: Hi
The relay will be activated when the source input becomes greater
than the set point. Delay and hysteresis can be applied.
Trig: Lo
The relay will be activated when the source input becomes less than
the set point. Delay and hysteresis can be applied.
Trig: Band
The relay will become activated when it is either greater than the
Band High set point, or lower than the Band Low set point. Delay and
hysteresis can be applied.
Trig: Latch Lo the relay energises when the source input falls below the
Band Low
level and remain energised until it rises above the
Band High
level.
It then remains de-energised until the sensor input falls below the
Band Low
level again.
Trig: Latch Hi the relay energises when the source input rises above the
Band
High
level and remain energised until it falls below the
Band Low
level. It then remains de-energised until the sensor input rises above
the
Band High
level again.
Summary of Contents for HPT63
Page 1: ...HPT63 pH REDOX TRANSMITTER OPERATION GUIDE...
Page 2: ......
Page 8: ...Contents iv...
Page 52: ...15 Guarantee and Service 44...
