70 A-96.250.111 / 211019
AMI Trides
Program List and Explanations
4 Operation
4.10 Sensors
4.10.1 Filter Time Constant: Used to damp noisy signals. The higher the
filter time constant, the slower the system reacts to changes of the
measured value.
Range: 5–300 Sec
4.10.2 Hold after Cal.: Delay permitting the instrument to stabilize again af-
ter calibration. During calibration plus hold-time, the signal outputs
are frozen (held on last valid value), alarm values, limits are not ac-
tive.
Range: 0–6‘000 Sec
4.10.3 Default pH: Used for pH compensation of free chlorine measure-
ment if no pH electrode is connected and programmed. See chap-
ter 2 for more details. For ozone, chlorine-dioxide, bromine, iodide,
no pH compensation is necessary.
Range: 0.00 - 14.00 pH
4.2 Relay Contacts
See Relay Contacts, p. 29
4.3 Logger
The instrument is equipped with an internal logger. The logger data
can be copied to a PC with an USB stick if option USB interface is
installed.
The logger can save approx. 1500 data records. The Records con-
sists of: Date, time, alarms of all available measuring values.
Range: 1 Second to 1 hour
4.4.1 Log Interval: Select a convenient log interval. Consult the table be-
low to estimate the max logging time. When the logging buffer is
full, the oldest data record is erased to make room for the newest
one (circular buffer).
4.4.2 Clear Logger: If confirmed with yes, the complete logger data is de-
leted. A new data series is started.
Interval 1 s 5 s 1 min 5 min 10 min 30 min 1 h
Time 25 min 2 h 25 h 5 d 10 d 31 d 62 d
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