Trek 156A, Руководство оператора

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Modes of Operation
The Model 156A features three primary modes of operation: a negative (-) decay
mode, a positive (+) decay mode, and a float mode. Decay mode START and STOP
voltages are easy to program.
For DECAY mode operation, the ion collecting plate is precharged, either positively
or negatively, to a level above the programmed START voltage. The time required
to discharge the ion collecting plate from the programmed START voltage to the
programmed STOP voltage is measured by the Model 156A. The discharge is due to
‘incident ion flow’ on the ion collecting plate.
For the FLOAT mode operation, the plate is initially discharged to zero and then
allowed to float to the voltage level dictated by ‘incident ion flow’ on the ion
collecting plate.
The simplicity of the design of the 156A makes it very reliable and completely
portable. The 156A is powered by a rechargeable battery (supplied) that offers
8 hours of operation from a full charge. The unit can also be operated from a line
supply using a battery eliminator/charger.
Caution:
This instrument incorporates a rechargeable 7.2 V battery pack. Do not
substitute a non-rechargeable battery because risk of fire or explosion could result.
Please contact TREK, Inc. or an authorized service organization for battery
replacement information.
Incoming Inspection
Visually inspect the instrument for physical damage such as dents, nicks, scratches,
broken fittings, etc. External damage may indicate more serious damage has
occurred within the instrument. In the event of damage, notify the factory or your
nearest authorized Trek Service Organization and request instructions. Attempts to
operate a damaged instrument may cause permanent damage to the instrument.
I - 2
Introduction
Warning:
Hazardous voltages may be present on ion plate during Decay mode
operation.