Xylem 600026, Руководство по эксплуатации

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Setup , Configuration and Calibration Turb PLUS 2000
100193 Rev 0 ba77254e01 11/2020 29
Alarm Delay Time: The alarm delay times are used to prevent tripping the alarm when the
turbidity level is close to the setpoint. The function of the delay times is as follows:
•
Delay On
: The turbidity level must exceed the alarm set point continuously for at least this number
of seconds before the alarm activates.
•
If the “delay on” time is set at 5 seconds and the process turbidity exceeds the set point
continuously for only 4 seconds, the alarm will not be activated. However, if process
turbidity exceeds the set point continuously for 5 seconds or more; the instrument will
activate the alarm.
•
Delay Off
: The turbidity level must not exceed the alarm set point continuously for at least this
number of seconds prior to deactivation of the alarm.
•
If the “delay off” time is set to 5 seconds and the process has exited out of the alarm
condition, the alarm will be reset only if the process is out of the alarm condition for a
continuous 5 seconds. Otherwise, the instrument will still signal an alarm condition.
6.2.4.1 Alarm 1 - Configuring Alarm 1
Alarm 1 Function: The ALM1 is displayed and the display indicates the current function of Alarm
1 (
HI
,
LO
,
OFF
or
Error
).
1. Use the  or  buttons to cycle through and select the desired function.
2. Press the  button to accept it and move to the next menu.
3. If the alarm was turned OFF a prompt will appear to set up Alarm 2 (go to section 4.2.10.2). If, on the
other hand, one of the other HI or LO was selected, a prompt will appear to set the delay times.
Alarm 1 Set Point: Setpoint is indicated by “ S/P ” shown on the lower row of the display, and is
used to select the set point for this alarm.
1. Select the desired alarm level by using the  and  buttons.
2. Once the desired set point has been set, press the  button to accept it and move to the next menu.