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MSA Ultima Series User Manual

MSA Ultima Series
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Procedures (see TABLE 3-1)
Procedure 1. Setting the Average Time Interval
The average, minimum and maximum gas concentration values are
gathered over the last time interval set by the Controller. This procedure
changes the time interval used for the average, minimum, and
maximum gas concentration value calculations of the Sensor.
To Change the Average Time Interval
1. Press the SEND button.
The display prompts: SEND?
2. Press the AVG button.
The display prompts: Set Avg Term +
3. Press the + or - button to scroll through the available list:
Every 1 Hour
Every 8 Hours
Every 24 Hours.
4. When the desired time interval displays, aim the controller at the
sensor and press the ENTER button.
The Monitor will show the time interval selected
for five seconds
The Monitor time interval is now set to the desired selection.
The Monitor displays the average, minimum, or maximum gas
concentration reading over the selected interval. This reading
is updated at the end of the selected average interval.
Procedure 2. Setting the Span Value
Monitors are shipped with TABLE 2-1 default span gas values. MSA
calibration cylinders are available for most of these pre-set span gas
concentrations; if an alternate span gas value is needed, the Monitor
span calibration value must be changed.
To Change the Calibration Span Gas Value of the Ultima Sensor
1. Press the SEND button.
The display prompts: SEND?
2. Press the SPAN button.
The display prompts: Span Gas Type +
3-3

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MSA Ultima Series Specifications

General IconGeneral
DisplayLCD with backlight
Communication PortsRS-485, Modbus RTU
Measurement RangeDepends on sensor connected
AccuracyDepends on sensor connected
Outputsrelays
CertificationsUL

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