• Automatic calibration at timed intervals when used with MSA
autocalibration module.
NOTE: If the autocalibration module was purchased for use
with the Toxgard II Monitor, consult the MSA Ultima
Controller Instruction Manual (P/N 813379) for
set-up and operation.
• Three levels of alarm
• Date of last successful calibration
• Maximum and minimum gas readings over selected time periods
• Average gas readings over selected time periods
• Changing of span gas value from factory-set value
• Access to real-time clock for a time and date stamp
See Calibrator and Controller instruction manual (P/N 813379) for
proper calibration procedures.
Toxgard II Monitor Calibration Output Signal
The Toxgard II Monitor is shipped with the calibration output
signal disabled so the output signal will track the gas
concentration value during the calibration process. In some
applications, it may be desirable to disable or lock the output
during calibration to a pre-determined output value to prevent
activation of alarm devices. The calibration signal can be enabled
using the Controller. When the calibration signal is enabled, the
output signal is 3.75 milliamps during calibration.
NOTE: The Controller is compatible with both the Ultima Gas
Monitor and the Toxgard II Monitor.
Chapter 2, Start-up
2-6
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