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TM 10-6630-247-13&P
2-3. FLASH POINT TESTER CONTROLS AND INDICATORS.
Shutter Operating Knob (1)
Spring loaded knob opens shutter and lowers test flame into test cup. Turn knob right to open shutter
release knob to close.
Flame Exposure Knob (2)
Controls size of test flame. Turn knob left to enlarge flame; right to reduce flame.
Slow Speed Stirrer Power Switch (3)
The slow speed stirrer is controlled by a rocker type switch installed in the power cord. Depressing the
ON side of the switch starts the slow speed stirrer; depressing the OFF side of the switch stops the
stirrer,
Heater Control Knob (4)
The flash point tester heater is operated by a control knob mounted on the face of the heater. Turning
the knob to the right increases heater output, turning the knob to left decreases output. Heater output
ranges from O to 750 watts. Indicator marks on the control knob reflect the percentage of heater
output. For example, turning control knob to 50 means that heater output is 50% of capacity, or 375
watts.
Propane Control Valve (5)
Controls flow of gas from propane cylinder to flash point tester. Turn valve to left to open valve; right
to close.
Gas Line Needle Valve (6)
Controls gas flow from propane supply tank to flame exposure device. Turn needle valve right to close;
left to open.
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