Swan Analytical Instruments AMI Codes-II TC Operator's Manual page 92

AMI Codes-II TC
Program List and Explanations
5.2.1.43
5.2.1.43.14
5.2.1.43.24
5.2.1.43
5.2.1.43.15
5.2.1.43.25
5.2.1.43.3
5.2.1.43.4
5.2.1.43.5
5.3 Relay Contacts
5.3.1
90
Control Parameters: if Parameters = Sample Flow
Setpoint: 0–600 B/s
P-Band: 0–200 B/s
Control Parameters: if Parameters = pH
Setpoint: 0 –14 pH
P-Band: 0 –14 pH
Reset time: The reset time is the time till the step response of a
single I-controller will reach the same value as it will be suddenly
reached by a P-controller.
Range: 0–9'000 sec
Derivative time: The derivative time is the time till the ramp
response of a single P-controller will reach the same value as it will
be suddenly reached by a D-controller.
Range: 0–9'000 sec
Control timeout: If a controller action (dosing intensity) is constantly
over 90% during a defined period of time and the process value
does not come closer to the setpoint, the dosing process will be
stopped for safety reasons.
Range: 0–720 min
Alarm Relay: The alarm relay is used as cumulative error indicator.
Under normal operating conditions the contact is active.
The contact is inactive at:
 Power loss
 Detection of system faults like defective sensors or electronic
parts
 High case temperature
 Lack of reagents
 Process values out of programmed ranges.
Program alarm levels, hysteresis values and delay times for the
following parameters:
 Total chlorine 1
 Total chlorine 2
 Calc. dichloramine (Calculated dichloramine)
 Temperature
 Sample flow
 pH
A-96.250.631 / 280219