Gossen MetraWatt SSP 120 Series, Руководство по эксплуатации

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80 GMC-I Messtechnik GmbH
7.2 Adjusting Procedure
Manual Balancing
Preparation
In order to adjust the KONSTANTER, you’ll need a highly
accurate measuring instrument whose resolution is roughly
one class better than that of the KONSTANTER (see also
Technical Data).
Connecting the Measuring Instrument for Output Voltage Adjustment
The KONSTANTER’s power output must be deactivated ( OUTPUT
OFF ).
Connect the measuring instrument directly ( parallel ) to the power
output of the KONSTANTER. Adjustment accuracy can be
further increased by additionally connecting the sensing leads.
Figure 7.2 a Connection Schematic for Output Voltage Adjustment
Switch the measuring instrument on, and select the correct
voltage range for the measurement. The upper range limit must
be at least as great as nominal voltage of the KONSTANTER.
Select the voltage adjusting functions and then activate the
KONSTANTER’s power output ( OUTPUT ON ).
Connecting the Measuring Instrument for Output Current Adjustment
The KONSTANTER’s power output must be deactivated ( OUTPUT
OFF ).
Observe the measuring instrument’s maximum current measuring range.
If the KONSTANTER’s maximum output current value is less than
the measuring instrument’s maximum current measuring range ,
the measuring instrument can be connected in series directly to
the power output .
If the maximum output current value is greater than the measuring
instrument’s maximum current measuring range , the measuring
instrument must be connected to the KONSTANTER’s power
output via a properly dimensioned
shunt resistor . Adjustment
accuracy can be further increased by additionally connecting
the sensing leads.
Figure 7.2 b Connection Schematic for Output Current Adjustment
Switch the measuring instrument on, and select the correct
current range for the measurement. The upper range limit must
be at least as great as nominal current of the KONSTANTER.
Select the current adjusting functions and then activate the
KONSTANTER (
OUTPUT ON ).
Figure 7.2 c Manual Device Adjustment
Calibrator
SENSE
R
s
Calibrator
SENSE
SSP Konstanter is ready to display
offset current
FUNCTION
+
FUNCTION
Jump to last edited function group
Press once
Press repeatedly if necessary
ENTER
Select date of
Jump to date selected
for last adjustment
CE/LOCAL
readjustment
ENTER
ENTER
Set to the value read from the
Acknowledge the
external measured value.
ENTER
Press and hold the ENTER key for at least 5
ENTER
ENTER
End adjustment and return to
function groups menu.
CE/LOCAL
CE/LOCAL
ENTER
Set to the value read from the
external measuring instrument
with the scroll keys.
ENTER
ENTER
Acknowledge the
external measured value.
Set to the value read from the
external measuring instrument
with the scroll keys.
Acknowledge the
external measured value.
ENTER
Set to the value read from the
external measuring instrument
with the scroll keys.
ENTER
ENTER
Acknowledge the
external measured
CE/LOCAL
CE/LOCAL
CE/LOCAL
SELECT
Self-Test
CV OUTPUT
CV OUTPUT
CV OUTPUT
CV OUTPUT
CC OUTPUT
CC OUTPUT
CC OUTPUT
CC OUTPUT
Increase load or
short circuit the output
CE/LOCAL
CE/LOCAL
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SSP Konstanter is ready to display
offset voltage.
SSP Konstanter is ready to display
full-scale voltage.
SSP Konstanter is ready to display
full scale current.
seconds to start the adjusting routine.
external measuring instrument
with the scroll keys.
value.