ULFIA CMT-2, User Manual

Page: 9 / 14

ULFIA Elektronik AB 24-0025-3201-64 CMT-2 Test box
2003-04-21 U.A. rev. 1 page 9 of 14
To this test box a separate digital multimeter should be used for measuring DC-,AC-voltage and
resistance (ohm).
The test-box also incorporates a signal generator (calibrator) that could simulate the signal from a
sensor for different CMV/bouncing values and frequencies.
The signal to the processor could be selected form either the connected sensor or from the calibrator.
Front panel :
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TEST NO : rotary switch for measurement selection
(test no. and what measurement function that should be selected on the DMM).
CALIBRATOR : CMV=0,50,100(16%),150(20%) : rotary switch for selecting CMV-
value and (bouncing)-value.
CMV=SENSOR SIGNAL : for measuring the sensor signal.
FREQUENCY : switch for selecting vibration frequency.
INDICATOR/PUSH-BUTTON : CMV-range : indicating/selecting 0-50 CMV range
BOUNCING : indicating/selecting bouncing
DMM+ : socket connectors(4mm) for connecting the digital multimeter.
DMM-
EXTERNAL 12V DC : socket connectors(4mm) for connecting a DC-voltage of about
11-14V 1A to power the compaction meter system,
if there is no roller cable.
POWER : lamp for indicating that there is power to the test box.
Rear panel :
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1.25A : fuse for the EXTERNAL connected power supply.
cables (length=3m) for connecting the test box to the different units in the compaction meter
system :
PROCESSOR - SUPPLY/INSTRUMENT
ROLLER CABLE
PROCESSOR - RECORDER
PROCESSOR – SENSOR
PROCESOR EXTENSION
SENSOR CABLE
Description of the test equipment