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Safeguards and Precautions
1. Read and follow all instructions in this manual carefully,
and retain this manual for future reference.
2. Do not use this instrument in any manner inconsistent
with these operating instructions or under any
conditions that exceed the environmental
specifications stated.
3. Making measurements in close proximity to rotating
equipment can be dangerous. Keep all loose clothiing
and hair away from exposed moving machinery.
Properly replace all machinery guards after
completing measurement.
4. The socket on the front of the instrument is for use
with a remote charger. Only use model R-5 (115 Vac)
or R-6 (230 Vac) rechargers to charge the instrument.
5. The HHT21A has a laser beam
light source. Do not view the
laser beam directly as it could be
hazardous to the eyes. Do not
point the laser beam into another
person’s eyes. Do not view the
laser beam with telescopic
devices.
6. With exception of replacing the batteries, this
instrument is not user serviceable. For technical
assistance, contact the sales organization from which
you purchased the product.
AVOIDEXPOSURE
LASERRADIATIONISEMITTED
FROMTHISAPERTURE
LASERRADIATION
AVOIDDIRECTEYEEXPOSURE
PEAKPOWER
WAVELENGTH
3mw
650nm
CLASSIIIALASERPRODUCT
NOTES