Pulsar MicroFlow-i, Instruction Manual

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Page 35
4 – 20mA Trim
This feature is only available to use when the sensor has been set to ‘Run mode’,
the options will then no longer be greyed out and will now be available to use.
If the device connected to the mA output is out of calibration, and is unable to be
calibrated. Then the low and high current levels can be calibrated by altering ‘
Set
4mA
’ (Low Trim) and ‘
Set 20mA
’ (High Trim). It is advised that to carry out
calibration, that a Digital Multi Meter (DMM) is used, so that 4mA or 20mA
respectively are shown on the device.
Calibrating 4mA
To calibrate the 4mA, type in ‘4’ in the ‘Constant mA’ value box and press ‘Send’.
If the
low value reading is incorrect, then it can be trimmed using the ‘Set 4mA’
option. Enter the offset directly into the value box and then select the ‘Set 4mA’
button to enable you to get the expected result (reading).
Calibrating 20mA
To calibrate the 20mA, type in ‘20’ in the ‘Constant mA’ value box and press
‘Send’. If the
high value reading is incorrect, then it can be trimmed using the
‘Set 20mA’ option. Enter the offset directly into the value box and then select ‘Set
20mA’ button to enable you to get the expected result (reading).
Resume mA
When calibration is complete, to release the constant mA reading select ‘Resume
mA’ which will return you to normal measurement/mA output readings. If this is
not selected when calibration is complete, then your mA output will not be
updated.