ANALOG OUTPUT ADJUSTMENTS (PCA-121):
20mA ADJ
A twenty turn adjustment which is used to set current output to the
desired span corresponding to the equivalent full scale range. (i.e.
20 mA at 100 RPM).
4mA ADJ
VFS ADJ
A twenty-turn adjustment that is used to set the current output signal
to the desired zero value. (i.e. 4mA at zero RPM).
A twenty-turn adjustment that is used to set the voltage output to the
desired span corresponding to the equivalent full scale range. (i.e.
5VDC or 10 VDC at 100 RPM).
VO ADJ
A twenty-turn adjustment that is used to set the voltage output signal
to the desired zero value. (i.e. 0 VDC at zero RPM).
COARSE RANGE ADJ
A dual in line DIP switch which is located on the PCA-121 board,
which is used to perform a coarse range adjustment for the input
frequency range.
VFS SELECTION
A two position jumper (JP1) that is used to select the desired voltage
output range of either 0 to 5VDC or 0 to 10VDC.
CALIBRATION PROCEDURE:
In order to perform field calibration and troubleshoot the PA1001A, the following equipments are
recommended.
MANUFACTURER
Fluke
PART NUMBER
8060A
DESCRIPTION
True RMS Multimeter
Digital Function Generator
Multi Function Counter
Adjustment Tool
Topward
Viz
8112
WD-755
8-TOOO
Spectrol
Table - 1
(Coarse Range Adjustment):
Frequency Range
Switch
Position
50 to 100Hz
1
2
3
4
5
6
7
8
100 to 200Hz
200 to 400Hz
400 to 800Hz
800 to 1600Hz
1600 to 3200Hz
3200 to 6400Hz
6400 to 12800Hz
PA1001A – 7/02
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