ULFIA Elektronik AB
24-0025-3201-64
CMT-2 Test box
2003-04-21 U.A.
rev. 1
page 10 of 14
Before you start to connecting the test box, the power to the compaction meter system should be
switched off.
The cables are long enough to test the processor even when it is installed on the roller.
The cables from the test box should be connected in the following way :
PROCESSOR - SUPPLY/INSTRUMENT : to processor
PROCESSOR - RECORDER : to processor
PROCESSOR - SENSOR : to processor
PROCESSOR - EXTENSION : to processor
SENSOR CABLE : to cable coming from the sensor
ROLLER CABLE : to cable coming from roller
The DMM (digital multimeter) should be connected to the two sockets marked DMM +/-.
If the ROLLER CABLE is not connected, a power supply ( 12V DC, 1A) or a battery could be
connected to the EXTERNAL 12V DC sockets and the processor and sensor could be checked.
ATTENTION :
make sure that you are connecting with the correct polarity!
Check that all units are connected to the test box.
Switch on the power to the compaction meter system or to the EXTERNAL power source.
Check that the POWER lamp on the test box is on.
Place the rotary switches on the test box in the following positions:
TEST NO. = position 1 (Vdc)
CALIBRATOR-CMV =150(20%)
CALIBRATOR-FREQUENCY = the same frequency as selected on the processor
(if FREQ.CORR.OFF is selected on the processor, any frequency could be selected on the
test box)
Frequency selected on
calibrator
FREQ. CORR. rotary switch
on processor
rpm
= Hz
position
1500
25
2
1700
28.3
3
2000
33.3
6
2500
41.7
8
3000
50
10
1500-3000
25 - 50
1 (frequency correction off)
CMV RANGE :
not pressed / activated
BOUNCING :
not pressed / activated
Connecting the test box to the compaction meter system
Using the test box
Содержание CMT-2
Страница 8: ......
