<4. Setting converter>
4-12
IM 12A01F01-03EN 2nd Edition : Feb. 19, 2019-00
4.4
Contact output settings
The following function can be assigned to the contact output.
The contact output has expected lifetime of around 1 million counts. This may vary depending on
contact mA or load capacity.
S1/S2/S3:
Alarm, Hold, Wash, Error, USP, Simulate, Off
S4:
Alarm, Error, Simulate, Fail safe
When a serious fail is detected, S4 employs Fail safe regardless of the function configuration.
The following table shows contact status when the power is On/Off.
Contact
AC/DC Power On,
Normal operation
AC/DC Power On,
Abnormal operation
AC/DC power orr
S1, S2, S3
NC
C
NO
NC
C
NO
NC
C
NO
S4
NC
C
NO
NC
C
NO
NC
C
NO
4.4.1
Alarm
Alarm monitors High/Low limit and on/off control. You can configure process parameters, Set
point, direction, Hysteresis, Delay time, Expiry time.
l
Process parameter slot
Read 4.3
l
Process parameter
Set process parameter for Alarm. Select parameters for alarm from the following list.
For
all measurement system:
temperature
PH
:
pH, ORP, rH
SC
:
Conductivity TC1, Conductivity TC2, Resistivity 1,
Resistivity 2, Concentration 1, Concentration 2
DO
Oxygen
the converter
Script *1
Differential pH, Differential ORP, Differential CONDUC 1, Differential RESIST, Differential
DO, Average pH, Average ORP, Average CONDUCT, Average RESIST, Average DO,
RATIO, passage (%), Rejection (%), Deviation (%), pH calc.(VGB)*2
*1
FLXA402 does not support script on Latest revision
*2
When multiple sensors are connected, the arithmetic starts on Sensor 1-1 and Sensor
2-1.
Set suitable parameters to use sensors in need. If you fail to choose parameters, a configuration
fails.
