Watlow CAS200 - Manual (Page 61)

CAS200 User’s Guide Chapter 4: Setup
Watlow Anafaze 49
AC Line Frequency
This menu lets you configure the scanner to match an AC
line frequency of 50 or 60Hz. (This function is provided for
international users who require 50Hz lines.) Since the
scanner reduces the effect of power line noise on the analog
measurement by integrating the signal over the period of
the AC line frequency, the scanner's noise rejection will
suffer if the line frequency is not set correctly. Cycle power
to enable this change.
Selectable values: 50 or 60Hz.
Digital Output Polarity
This menu lets you set the state of the digital outputs used
for alarms. When set to CLOSED, the output closes the
circuit when an alarm occurs. This setting does not affect
the function of the Global Alarm.
Selectable values: Closed or Open
External Alarm Acknowledge Input Active
An external alarm reset or acknowledge button can be
wired to the CAS200 at input 8. When activated, it
performs the same function as if the "ALARM ACK" key
was pressed.
Selectable values: High or Low
CHANNEL PROCESS UNITS
CHANNEL NAME ALARM STATUS
AC LINE FREQ. ?
60 HERTZ
CHANNEL PROCESS UNITS
CHANNEL NAME ALARM STATUS
DIG OUT POLARITY
ON ALARM ? CLOSED
CHANNEL PROCESS UNITS
CHANNEL NAME ALARM STATUS
EXTRN ALARM ACK
INPT ACTIVE ? LOW