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2. INTRODUCTION
2.1 Inspection
Examine the shipping carton for any sign of damage. Inspect the unit
and any accessories for damage. If there is any damage then consult
your distributor immediately.
2.2 Description
The Martindale RT80 has the following functions and features:
100 to 99999 rpm and 1.7 to 1666 rps ranges
Hold, Max, Min, Max-Min and Average functions
Auto power off
Low battery indication
LCD display with backlight
Pocket-sized, compact body
2.3 Accessories
The RT80 comes with the following accessories:
Protective cover for safe storage
2 x 1.5V AAA batteries
Detachable carry strap
Instructions
2.4 Battery Installation
Refer to Section 4.1 (Battery Replacement) for the battery installation
instructions for the RT80.
3.4 Power On/Off
To power on in Measurement mode, press
second.
To power on in Set mode, press
To power off the unit, press
for 2 seconds.
3.5 Auto Power Off (APO)
If the unit is inactive for a period of 10 minutes it will automatically
power off.
To disable this function refer to section 3.7.
3.6 Backlight
Press
for less than 1 second to turn on the backlight.
It will automatically turn off after 15 seconds if there is no further
operation of the unit.
3.7 Set Mode
This mode sets the following in the order shown:
Unit of measurement;
Auto power off (APO).
The Set mode is selected by pressing
unit powered off.
If the unit is switched off while in the Set mode, any changed
settings will not be saved, and the unit will revert to the previous
settings.
Unit of Measurement
The LCD will fl ash rpm or rps after entering the Set mode.
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for less than 1
for 2 seconds.
for 2 seconds with the
3. OPERATION
3.1 Low Battery Indication
If the
s displayed, the battery needs replacing as measurement
i
accuracy can no longer be guaranteed (see section 4.1 Battery
Replacement).
3.2 Description of Press Buttons
Selects Set mode settings
Activates measurement mode
Turns on/off the RT80, turns on backlight
Selects Set mode and Hold mode functions
MODE
3.3 Description of LCD symbols
APO
Auto power off is active
Indicates low batteries
HOLD
Hold mode is active
MAX
Maximum recorded reading is displayed
MIN
Minimum recorded reading is displayed
The difference between maximum and minimum
MAX-MIN
recorded readings is displayed
rpm rps
Units of measurement being displayed
Indicates press of
ENTER
Indicates press of
3
4
RT80 instructions rev1.indd 5
Press
to select rpm or rps as required.
MODE
Press
to advance to the next function.
APO
The LCD will display APO.
Press
to select ON or OFF as required.
MODE
Press
to save settings and return to the Measurement mode.
3.8 Measurement Mode
Never try applying refl ective tape to rotating objects if they are
still moving.
Take all required safety precautions when applying refl ective tape
to stationary rotating objects and when taking measurements.
If the rotating object to be measured does not have a highly refl ective
surface, it is advisable to apply a refl ective marker or multiple
refl ective markers to the object.
Avoid exposing the sensor to light sources or applying the refl ective
tape next to highly refl ective surfaces, such as glass, as this can
affect measurement accuracy.
The ideal measurement distance to the object is between 10cm to
40cm. Refer to table 1 for the recommended tape size and measuring
distance.
5
6
button required
MODE
button required
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