Use and Care Manual

MAINTENANCE TIPS
• Avoid dropping the unit. Do not subject it to violent shock or
vibration or expose it to strong electromagnetic fields (for
example, near arc welders or induction heaters).
• Keep the unit out of direct sunlight.
• Do not use chemicals or abrasive cloth to clean the display
window or housing.
• Before storing the DSM20 for an extended period of time
(several months or more), remove the battery to avoid
having it leak and damage the unit.
WARRANTY INFORMATION
General Tools & Instruments’ (General’s) DSM20 USB Digital
Sound Level Data Logger is warranted to the original
purchaser to be free from defects in material and
workmanship for a period of one year. Subject to certain
restrictions, General will repair or replace this instrument if,
after examination, the company determines it to be defective
in material or workmanship. The warranty period begins on
the date of purchase. You are encouraged to register your
product online. General will extend your warranty an
additional 60 days if you register at
www.generaltools.com/ProductRegistry.
This warranty does not apply to damages that General
determines to be from an attempted repair by non-authorized
personnel or misuse, alterations, normal wear and tear, or
accidental damage—including dropping the unit. The
defective unit must be returned to General Tools &
Instruments or to a General-authorized service center, freight
prepaid and insured.
display
FUL during recording. The data logger has 5 display
modes which are
Normal , Max , Min , Avg and Status . Press
the button briefly to switch between these modes.
Normal : displays current sound level
Max : displays the maximum reading recorded since activation
of this mode
Min : displays the minimum reading recorded since activation
of this mode
Avg : displays the average value of readings recorded since
activation of this mode
Status : displays status of the device
Log : currently logging data
Con : inactive; connect to computer to configure for next
data logging session
Ful : memory is full
--- configured and ready to start logging
SPECIFICATIONS
Range: 30~130dB Resolution: 0.1dB Accuracy: ±1.5dB
Max capacity: 32000 data points Link Protocol: USB 1.0/2.0
Power supply: DC3.6V Li Battery Capacity: 1200mAh
Working current: <1mA
Operating temperature: 32° to 122°F (0° to 50°C)
Operating humidity: 10-90%RH non-condensing
Storage temperature: 14° to 122°F (-10° to 50°C),
5% to 95%RH w/o battery
Dimensions: 7.09 x 1.10 x 1.06 in. (180 x 28 x 27 mm)
Weight: 2.01 oz. (57g) w/o battery
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