2. At the
CAL1
function press
^
and
v
simultaneously, then release them. The display will
indicate the live input value. Do not be concerned at this stage if the live input display value
is not what is required.
3. Press then release the
F
button. The display will indicate
SCL1
followed by a value. Use
the
^
or
v
button to change this value to the required display scale value at this input.
Press the
F
button to accept changes, the display will show
CAL End
and will then move
on to the next function.
5.39
First calibration scaling point
Display:
CAL2
Range:
Any display value
Default Value:
n/a
This method of display scaling is used only when the
USER SCLE
function is set to
on
.
CAL1
and
CAL2
are used together to scale the instruments display, values for both must be set when
using this scaling method.
The second point scaling is performed in exactly the same manner as
CAL1
except that
SCL2
will be seen instead of
SCL1
. It is essential that the live input is different in value to the
CAL1
input. The procedure for entering the second scaling point is:
1. Ensure that an input signal of a know value (different to the input used at
CAL1
) from an
encoder etc. is present at the input terminals, this will normally be at the high end of the
range.
2. At the
CAL2
function press
^
and
v
simultaneously, then release them. The display will
indicate the live input value. Do not be concerned at this stage if the live input display value
is not what is required.
3. Press then release the
F
button. The display will indicate
SCL2
followed by a value. Use
the
v
or
^
button to change this value to the required display scale value at this input.
Press the
F
button to accept changes, the display will show
CAL End
and will then move
on to the next function.
5.40
Calibration offset
Display:
CAL OFSt
Range:
Any display value
Default Value:
n/a
This function will only be seen and can only be used if the
USER SCLE
function is set to
on
.
The calibration offset is a single point adjustment which can be used to alter the calibration scaling
values across the entire measuring range without affecting the calibration slope. This method can
be used instead of performing a two point calibration when a constant measurement error is found
to exist across the entire range. To perform a calibration offset press the
^
and
v
buttons
simultaneously at the
CAL OFSt
function. A ”live” reading from the input will be seen, make a
note of this reading. Press the
F
button, the message
SCLE
will now be seen followed by the last
scale value in memory. Use the
^
or
v
button to adjust the scale value to the required display
PM4SSIMAN-2.2-0
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