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16. DUAL RELAY OPERATION
Dual AC/DC solid state relays
rated 120 mA are standard for alarm or setpoint control and are
independently set up via the “Relay Alarms” tab of Instrument Setup Software. For online help
with any data entry field, press the
F1
key.
•
Setpoint.
The number to which the current reading is compared if deviation is set to zero. The
reading is the count in engineering units that is transmitted digitally and is also used for analog
output. For example, if the transmitted reading is in gallons/minute, the setpoint will be
referenced to that reading, not to the raw pulse rate sent from a turbine flow meter.
Time
1000
Digital Reading
Setpoint
OFF
OFF
ON
Time
1000
Setpoint
OFF
ON
ON
Digital Reading
“Active High” On/Off setpoint control
with deviation =0
“Active Low” On/Off setpoint control
with deviation = 0
Summary of Contents for LTE Series
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