Checkline ESL-20 User Manual
2 YEAR WARRANTY (RESTRICTIONS APPLY)
Hoto Instruments warrants its products to the original purchaser to be free from defects
in workmanship and material under normal use and proper maintenance for two years
(one year for attachments, adapters, batteries, and cables) from original purchase. This
warranty shall not be effective if the product has been subject to overload, shock load, misuse, negligence, accident or repairs attempted by others than Hoto Instruments.
During the warranty period, we will, at our option, either repair or replace defective
products. Please call our customer service department for a return authorization number
and return the defective product to us with freight prepaid.
The foregoing warranty constitutes the SOLE AND EXCLUSIVE WARRANTY, and we
hereby disclaim all other warranties, express, statutory or implied, applicable to the products,
including but not limited to all implied warranties of merchantability and fitness. In no
event shall Hoto Instruments be liable for any incidental or consequential damages.
Model ESL-20
LED Stroboscope
Specifications subject to change without notice
03/08
INSTRUCTION MANUAL
Model ESL-20 LED Stroboscope
Introduction
Model ESL-20 is an enhanced LED array, battery operated, stroboscope
designed to measure and observe rotating, reciprocating and linear
motion in a large variety of production, quality control and academic
applications.
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Enhanced LED array with 96 lights
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0 to 120,000 flashes per minute with floating decimal display
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LEDs never need replacements
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Extended battery life – 10 hours continuous use at 6,000 rpm/fpm
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Rate Multiplier(x2)/Divider(÷2) for fast synchronization and true
rpm confirmation
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19 non-volatile data memory, last reading recall
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External Trigger
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Digital Phase Shift by 1° increments
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Rugged Aluminum Housing
Important
Do not look directly at the emitted light.
Instrument is fragile – handle with care.
Do not operate instrument in a humid or dusty environment.
To clean, wipe surface with a damp, soapy cloth. Avoid harsh chemicals.
Dimensions
Operation
1. When you receive your ESL-20 it may not be fully charged. Connect
the unit to the AC adapter/charger; a full charge takes about 6 hours.
Automatic shutoff prevents overcharging. The AC adapter/charger
may be used to operate the strobe but the battery is not charged
during operation.
2. The ESL-20 can be handheld or tripod mounted. When mounting
the unit, the tripod screw (1/4-20UNC) should not exceed 8mm.
3. Visually note a unique feature or physically mark the object to be
measured with reflective tape or a chalk mark.
4. Press the
on the display and the strobe will flash at 3,000 fpm
(factory default) or the previous power down value.
POWER switch, the power icon will flash
Specifications subject to change without notice.
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