CLS200 Series User’s Guide
Chapter 3: Using CLS200
59
4. Use the three-key sequence (
ENTER
,
ALARM ACK
,
CHNG SP
) to access the setup menus.
In the
SETUP LOOP INPUT
menu, locate the
INPUT FILTER
parameter. Note the setting
and then change it to
0 SCANS
.
5. Press the
BACK
key until the single loop display appears.
6. Press the
MAN/AUTO
key.
7. Press the
YES
key to toggle to the
TUNE
mode.
8. Press the
ENTER
key to begin tuning the loop.
TUNE
flashes throughout the tuning process.
When tuning is completed the control status indicator changes to
AUTO
.
9. Adjust the setpoint to the desired temperature.
10. Restore the
INPUT FILTER
parameter to its original value.
Using Alarms
The CLS200 has three main types of alarms:
• Failed sensor alarms
• Process alarms
• System alarms
Alarm Delay
You can set the controller to delay normal alarm detection and alarm reporting. There are two kinds
of alarm delay:
• Start-up alarm delay delays process alarms (including deviation alarms but not failed sensor
alarms) for all loops for a time period you set at the
STARTUP ALARM DELAY
parameter in
the
SETUP GLOBAL PARAMETERS
menu.
• Loop alarm delay delays failed sensor alarms and process alarms (including deviation alarms)
for one loop until the alarm condition is continuously present for longer than the loop alarm
delay time you set.
Failed sensor alarms are affected by the loop alarm delay even during the start-up alarm delay
time period.
Failed Sensor Alarms
Failed sensor alarms alert you if one of the following conditions occurs:
• Thermocouple open
• Thermocouple shorted (must be enabled)
• Thermocouple reversed (must be enabled)
• RTD open positive input or open negative input
• RTD short between the positive and negative inputs
