©
Page 92 of 97
Issue: 1.04
The gain adjustment is stored as a floating point number and will therefore be
subject to some rounding (less than 0.12ppm of value)
Example: for a microK that has been found to have a voltage gain for positive
readings on its x40 range that is low by a factor of 1.000123 (see section 7.2.8),
the gain can be corrected using:
CAL:GAIN X40,POS,1.000123
10.4.32
Command: CALibrate:GAIN?
Format: CALibrate:GAIN?
<gain>,<polarity>
Reports the total calibration adjustment applied to the voltage <gain> range. The
parameter <gain> must be one of three strings defining the nominal gain of the
microK pre-amplifier:
X2
X10
X40
The parameter <polarity> must be either POSitive or NEGative.
Example: a microk that has had a number of adjustments to its nominal x40 gain
causing a total ratio adjustment of 1.000123 for positive readings will respond to
CAL:GAIN? X40,POS
with “1.000123”
10.4.33
Command: CALibrate:PASSword
Format: CALibrate:PASSword
<old password>,<password>,<password>
Changes the password used to lock (protect) the calibration of the microK’s
measurement system. This is initially set to “1234”, but should be changed
before using the microK for any critical or traceable measurement or calibration
work. The new password must be at least 4 characters in length and must be
typed in identically twice in order to effect the change.
Example: to change the password from 1234 to ABCD use:
CAL:PASS
1234,ABCD,ABCD
10.4.34
Command: CALibrate:UNLock
Format: CALibrate:UNLock
<password>
