Optical system - model A2102
Optical range
Optical angle
Light source
Optical system - Laser model A2012/LSR
Optical range
Angle of operation
Light source
Measurement range - both models
Measurement ranges
Autoranging function
Speed range rpm
Linear Metres/min
Resolution maximum
Accuracy
Timebase
Operation and Use of Models A2102 & A2102/LSR
Optical rpm measurement
1.Ensure the machine to be measured is in a safe off mode.
2.Attach small reflective target to machine shaft (typically 6mm x 25mm.less for laser).
3 Start machine and point the Tachometer at the target.
4.Press and hold continuously either of the On/Off buttons to suit application.
5.Aim light beam onto target, ensure "on-target" sign is glowing or flashing steadily.
6.Read rpm, releasing button will hold last reading in the display for 1 minute.
7.Press either On button to zero reading or take another measurement.
Contact rpm measurement
1.
Fit contact adaptor into the Tachometer and ensure a good click fit connection.
2.
Start machine and make clean contact with the shaft end.
3.
Ensure a steady firm pressure is applied to the wheel, just sufficient to maintain slip free
contact, excess pressure will wear the rubber tip
and bearings and may slow the machine down and give inaccurate readings.
4.
Releasing the On/Off switch will hold the reading automatically for 1 minute.
Linear contact speed measurement - Metres/minute
Fit contact adaptor as above.
1.
2.
Press and hold the On button, then press the program button, the display will alternate
between the "rpm and mt" symbols, release
the program button when the "mt" symbol is illuminated, the instrument is now in the metric
linear speed.
3.
Keeping the On button pressed, now place the contact wheel on the moving surface and
read th linear rate.
4.
Releasing the On button will then hold the last reading in the display for 1 minute.
5.
The instrument retains Metres/min ode for continued linear measurments for up to 1 minute
from previous reading, by pressing either "Measure" buttons this mode will be held for a fur-
ther minute.
6.
The instrument will automatically revert to rpm mode after auto switch off.
Note: Inverted operation
The instrument can be used through 180 deg. rotation (e.g. with the light beam or contact probe
pointing downward into a machine), the display inverts so display reading is clear.
- 50mm - 1000mm
- +/- 45 Deg. to reflective marker
- Minilamp visible light
- 50mm - 2000mm
- +/- 80 Deg. to reflective marker
- Red Spot Laser Class II (670nm)
- rpm (optical) & rpm or metres/min with contact adaptor supplied.
- Autoranging only
- 3 - 99,999 rpm (50,000 rpm for 10 secs in Contact mode)
- 0.30 - 1999.9 metres/min + Contact adaptor
- 0.01 in slowest speed range
- 0.01% +/- 1 digit
- 0.8 seconds or time between pulses, whichever is longest
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