72-820 TENMA, 72-820 Datasheet - Page 21

• Manufacturer Part Number: 72-820
• Description: INFRARED THERMOMETER, 18°C TO 550°C
• Manufacturer: TENMA

Specifications of 72-820

• Temperature Measuring Range: 18°C To 550°C
• Temperature Tester Type: Thermometer - Infrared
• Accuracy %: 1.8%
• Wavelength Max: 670mm

Model 72-820: OPERATING MANUAL
1.
2.
3.
4.
5.
6.
Press SET and then press
high emissivity.
Press MODE to select MAX.
Enable the motor and allow it to reach a steady
state operating temperatures.
Aim the Thermometer at the surface to be measured.
Start recording temperature
Slowly move the Thermometer up the belt toward
second sheave.
l
l
l
l
l
If belt is slipping, sheave temperature will be
high from friction.
If belt is slipping, belt temperature will remain
high between sheaves.
If belt is not slipping, belt temperature will reduce
between sheaves.
If inner surfaces of sheaves are not a true “V”
shape, this indicates belt slippage and will
continue to operate at elevated temperatures
until sheave is replaced.
Sheaves must be properly aligned (include “pitch
/
to select relatively
l
l
l
& yaw”) for belt and sheaves to operate at appropriate
temperatures. A straight edge or taut string, can be
used to check alignments.
Motor sheave should operate at a temperature
consistent with blower sheaves.
If motor sheave is at a higher temperature at motor
shaft than at outer circumference, belt is probably
not slipping.
If outer circumference of sheave is at higher
temperature than sheave at motor shaft, then belt
is probably slipping and sheaves may be misaligned.
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