Monroe Electronics 287B Operator's Manual

Operator’s Manual

Model 287B

Ionizer Performance Analyzer

P/N 0340197

287B-1/100

V1.00

08302017

100 Housel Ave  PO Box 535  Lyndonville NY 14098
585-765-2254  fax: [phone] monroe-electronics.com

CONTENTS

Specifications ............ Section 1 .......................... Page 1

Specifications .......................................................... Page 1

Accessories included ............................................... Page 1

What this instrument does ....................................... Page 1

General Information .... Section 2 .......................... Page 2

Operation

Getting Started, a TutorialSection 3 ..................... Page 3

Confidence Check — Three steps to get going ........ Page 3

Further familiarization .............................................. Page 4

Test results .............................................................. Page 5

The Set-up Menu ..................................................... Page 6

Maintenance ................ Section 4 .......................... Page 7

Precautions ............................................................. Page 7

Cleaning .................................................................. Page 7

Battery ..................................................................... Page 7

Calibration ............................................................... Page 7

Glossary ...................... Section 5 .......................... Page 8

References .................. Section 6 .......................... Page 9

Warranty and Repair Information ................. Back Cover

Specifications and procedures subject to change without notice.

Copyright© 1999

Monroe Electronics, Inc.

Printed in USA

Section 1

SPECIFICATIONS:

Charger: 1100 volts, selectable polarity
Fieldmeter:

Accuracy 5% of reading, 2% typical
Zero Drift <4V in 90s, 2V typical

Trip points: Fixed 1000V and 100V
Charge plate: 1.7”x4” (10.6 inches periphery)

Capacitance 25pF
Self-discharge <10% of full scale in 200s

Display: 2x16 LCD, >5 updates per second

Timer 200.0s maximum, 0.1s resolution
Fieldmeter 1250V, 1V resolution

Sensors:

Humidity 5% typ. from 10% to 90%RH @25ºC
Temperature 2ºC typical

Oper. temp.: 25ºC, 10ºC
Battery: 9 volt NEDA #1604A or equivalent alkaline (>40 hour life or >1300

charge cycles). Longer life may be achieved by using 9-volt lithium.

Dimensions: 8.1x4x1.9 inches (206x102x48 mm)
Weight: 1lb, 6 oz. (0.63 kg)

Accessories included:

Carrying case

Banana patch cord

Alligator clip with boot

Battery

This manual and a manual supplement

What this instrument does —

 Model 287B IPA meets and far exceeds the basic requirements of ESD Association

(Draft) Standard Practice 3.3 for the Protection of Electrostatic Discharge
Susceptible Items – Periodic Verification of Air Ionizers.

 Model 287B IPA performs manual or automatic decay and balance tests for periodic

verification of ionization equipment and stores the results and averaged decay times for
up to ten manual tests and up to ten complete automatic test sequences.

 Provides real-time measurement and display of temperature and relative humidity.
 Performs self-tests.
 Battery powered and portable, sets up in seconds.

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Section 2

GENERAL INFORMATION

The 287B IPA performs manual or automatic decay and balance tests for periodic
verification of ionization equipment. It then stores the results and averaged decay times for
up to ten manual tests and up to ten complete automatic test sequences. Temperature and
relative humidity are displayed real-time and recorded with the test data.

All instrument functions are controlled by four pushbuttons.

Display contrast can be adjusted through setup menu (page 6).

In DECAY mode, a built-in high voltage generator charges the plate to over 1050 volts.
During the test, the plate will discharge toward zero in the presence of ionization. The
elapsed time of decay between 1000 volts and 100 volts is displayed.

USER NOTE — For very fast decay times – faster than one second – ZERO errors may
occur.

In the BALANCE mode, isolated plate voltage, test duration Min and Max voltages are
displayed.

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

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

The specifics of usage of the Model 287B for periodic verification of air ionizers are given in
detail in ESD Association (Draft) Standard Practice 3.3 for the Protection of Electrostatic

Discharge Susceptible Items – Periodic Verification of Air Ionizers.

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