Analog Output Ranges - Michell Instruments XZR250 User Manual

XZR250 User's Manual
4.6

Analog Output Ranges

The device is factory set to output a range of 0 – 25% O
ranges can be fully customised; this is extremely useful in applications where the O
is within a narrow band as it allows the analog outputs to be tailored to this limited range.
For example the user could change the range to between 2 – 8% O
resolution on the mA output in the combustion region. The lower and upper ranges lock the
output at the set limits, therefore at 2% O
8% O or above it would output 20mA.
2
1. Press <ENTER>: the ENTER PASSWORD screen is displayed.
2. Input your current security password.
3. The CALIBRATE menu is the first menu option displayed.
4. Press <ENTER> to access the CONFIGURE menu. From here you can access the
Relay and Current configuration options.
5. Set the Relay limitations:
a. Press <ENTER> to access edit mode.
b. Input the Lower range value; the number must be less than the intended
upper range value. Press <ENTER> to save.
c. Input the Upper range value; the number must be greater than the saved
lower value. Press <ENTER> to save.
d. Input the Hysteresis value. Press <ENTER> to save.
6. Set the Current limitations:
Michell Instruments
SYSTEM CONFIGURATION
via its analog output. The output
2
or below the analyzer would output 4mA and
2
variation
2
to obtain greater
2
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