Model 90 Quantifier Sound Level Meter
Page 53
Section 5 Maintenance & Care
The MODEL 90 is a precision measurement instrument and should be treated with care.
Do not allow the instrument to be exposed to substances which may cause damage to
the components of the unit. If the instrument is to be used in an environment where
particles such as dust may come into contact with the instrument, always use a
Windshield (WS:90) to protect the microphone capsule.
The MODEL 90 is not waterproof and should not be used in situations where moisture
will form or condense on the microphone capsule or the instrument body. If using the
MODEL 90 outdoor, use a suitable outdoor measurement kit which has been specifically
designed to protect the instrument.
If the MODEL 90 becomes dusty, wipe it down with a cloth that is lightly dampened with
water or a mild detergent. Do not use aromatic hydrocarbons, chlorinated solvents, or
methanol-based fluids when wiping down the meter.
Do Not clean the microphone capsule. Do Not remove the microphone grill as this can
cause severe damage to the membrane. Physical damage to the microphone capsule is
not covered by the instrument warranty.
If you experience any problems with the operation of the instrument, refer to page 54
for basic troubleshooting. If this does not solve the problem, contact Pulsar Instruments
Plc your local representative for further assistance.
