Users’ Manual
ESM-12S Digital seepage monitoring system
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27
9 SAMPLE TEST CERTIFICATE
Test Certificate
Date: 30.06.2021
Temperature: 28
0
C
Item
:
Water level sensor (low range pressure sensor)
Model
:
ESM-12S
Serial no.
:
-----------
Full Scale Value :
1000 mm
Observation Table
:
Marking on Standard
Tape
(mm)
Reading Observed by Automatic level
sensor
( mm)
Error
(mm)
0
0.00
0.10
200.00
200.10
0.25
400.00
400.25
0.25
600.00
600.25
0.15
800.00
800.15
0.25
1000.00
1000.25
0.10
Maximum Error (% FS) : 0.03
Wiring colour code:
Note:
The Offset value should be observed at site and fed with opposite sign in the datalogger to
obtain the output in mm.
Tested by:
Wire colour
Signal
Red
+ 12 V (supply )
Black
0 V (supply )
Green
Output signal
