Users’ Manual
EDS-71V/P Single point borehole extensometer
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11
TEST CERTIFICATE
Date : 15.12.2008
Customer
:
P.O.no.
:
Instrument
:
Potentiometric displacement sensor
Model
:
EDE-P05
Serial number
:
XXXXX
Range
:
50 mm
Input
Observed value
Average Calculated
Error
Displacement
Up1
Up2
displacement
(mm)
(Volts)
(Volts)
(Volts)
(mm)
% FS
0.00
0.0550
0.0580
0.0565
0.00
0.00
7.00
0.3250
0.3260
0.3255
6.95
0.11
17.00
0.7150
0.7140
0.7145
16.99
0.01
27.00
1.0990
1.0990
1.0990
26.92
0.16
37.00
1.4870
1.4870
1.4870
36.95
0.11
48.00
1.9150
1.9150
1.9150
48.00
0.00
Max error (%FS) :
0.16
Linear gage factor (G) :
25.83
mm/Volts
Displacement "D" is calculated with the following equation:
Linear
:
D(mm) =G(R1-R0)
R1 = current reading & R0 is initial reading in Volts
Zero reference (initial position) in the field must be established by recording the
initial reading R0 (Volts) just after installation.
Note :
1)
Zero displacement reading given in above calibration chart is taken
at around 3 mm from mechanical zero.(slider fully in).
2)
For best linearity use the displacement transducer only upto 3 mm
from its mechanical displacement limits (ends)
Pin configuration/wiring code:
Red :
Excitation '+ 5 V DC'
Black :
Excitation 0 V
white :
Output high (0 - 2 V DC)
Green :
Output 0 V
Checked by
Tested by
