Monroe 288 Specifications download pdf (Page 6)

Section 2

GENERAL INFORMATION

Model 288 performs manual or automatic decay and balance tests for qualification and

periodic verification of ionization equipment. It then stores the results and balance averages

for manual tests and complete automatic test sequences up to a maximum of 1500 tests.

Temperature and relative humidity are displayed real-time and recorded with the test data.

All instrument functions are controlled by five key pushbuttons.

In DECAY mode a built-in high voltage generator charges the plate to a voltage specified by

the user – up to 1100 volts. During the test the plate will discharge toward zero in the

presence of ionization. The elapsed time of decay between a selected start voltage and a

selected stop voltage is displayed.

In the BALANCE mode, plate voltage, test duration and + and − peak voltages are displayed.

Self-tests include battery check and tests for functional errors.

Memory is non-volatile. Setup and data are retained during storage.

Although the Model 288 does not meet all of the requirements of the standard in the outward

sense, it does allow for testing where initial voltages of 1000 volts (or less) are involved. For

further details see ESD Association Standard S3.1 for Protection of Electrostatic

Discharge Susceptible Items – Ionization.

CAUTION

When charged, the plate voltage can be in excess of 1100 volts with respect to ground.

Although the charges and potentials are below those which are normally detected by

human senses, A SHOCK HAZARD EXISTS.

• If you are handling the plate assembly or conducting a test, which involves

touching the plate, expect a shock

• Do not charge large capacitors with this device.

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Monroe 288 Specifications Page 6