Features:
individually programmable ratio
8Bit microcontroller based
4-digit LED display
wide operating temperature and voltage
mounted in the instrument panel
This digital instrument provides accurate measurement of engine angular velocity in RPM.
THA3.1 measures output signal frequency from alternator AC contact, engine electronic control unit or non-contact angular velocity sensor. The result of measurement displays on LED indicator.
Depending on versions the the tachometers have varied ratios.
Versions
THA3.1 453813.001 2,71
CHSDM motorgraders DZ-98 (Cummins engines)
THA3.1-01 453813.001-01 1,76
CHTZ vibrating rollers VK-18
THA3.1-02 453813.001-02 3,45
CHETRA tractors (Cummins engines)
THA3.1-03 453813.001-03 0,4
BELAZ dump tracks (Cummins engines)
THA3.1-04 453813.001-04 1,71
CHTZ tractors DET-320 (YAMZ engines)
THA3.1-05 453813.001-05 0,77
CHSDM tractors T10 (Cummins engines)
THA3.1-06 453813.001-06 0,942
CHTZ tractors (with hydromechanical transmission)
THA3.1-07 453813.001-07 1,25
CHSDM tractors T10 (YAMZ and CHTZ engines)
THA3.1-08 453813.001-08 0,431
CHSDM tractors T10
THA3.1-09 453813.001-09 0,359
CHSDM tractors T10 (with electric starter)
Technical Data
Display digits
4 (9,2 mm height)
Accuracy
±20 rpm
Display refresh cycle
0,5 – 2,0 sec
Supply voltage
8 – 32 V DC
Power consumption
3 W
Protection class (to IEC 60529)
IР54
Operating temperature range
– 45…+55 °C
Storage/Transport temperature range
– 60…+65 °C
Mounting position
panelboard
Dimensions
65 × 65 × 58 mm
Weight, approx.
0,12 kg
Dimensions [mm]
