Swan Analytical Instruments AMI Codes-II O3 Operator's Manual page 78

AMI Codes-II O3
Program List and Explanations
5.3.2.1
5.3.2.20
5.3.2.300
5.3.2.400
5.3.2.50
5.3.2.1
78
Note: The navigation in the menu <Relay 1> and <Relay 2> is
equal. For reason of simplicity only the menu numbers of Relay 1
are used in the following.
1 First select the functions as:
- Limit upper /lower
- Control upwards/downwards
- Timer
- Fieldbus
- End of Batch (relay 2 only)
2 Then enter the necessary data depending on the selected
function.
Function = Limit upper/lower:
When the relays are used as upper or lower limit switches, program
the following:
Parameter: select a process value
Setpoint: If the measured value rises above respectively falls below
the set-point, the relay is activated.
Parameter Range
DIS 0.0–500.0 ppb
Sample flow 0–600 B/s
Hysteresis: within the hysteresis range, the relay does not switch.
This prevents damage of relay contacts when the measured value
fluctuates around the alarm value.
Parameter Range
DIS 0.0–500.0 ppb
Sample flow 0–200 B/s
Delay: Duration, the activation of the alarm relay is retarded after the
measuring value has risen above/fallen below the programmed
alarm.
Range. 0–600 sec
Function = Control upwards/downwards:
The relays may be used to drive control units such as solenoid
valves, membrane dosing pumps or motor valves. When driving a
motor valve both relays are needed, relay 1 to open and relay 2 to
close the valve.
A-96.250.881 / 070622