Specifications

ADDITIONAL FEATURES:

Group and Location – By accessing this screen the tests can be organized to reflect the

ionizers’ locations. There are up to 17 Groups available, with a maximum of almost 700

locations. The total number of group/locations available will vary depending on how

extensive the tests are for the individual locations (i.e. how many decays are run for each

ionizer). Up to 1500 tests may be run. By using a PC connected to the units RS232 port

it is possible to custom label these group/locations (i.e. Building 10 - Bench 2E). Via the

same link it is then possible to download all the test results stored in the unit into a

spreadsheet on the PC.

Test Parameter Setups – In both the Manual and Automatic Modes there are five

distinct setups. Three of these are available to the user to customize as needed. The

other two are the factory and test settings, which are not adjustable. Any of these can be

selected as the default test setup.

Data Storage and Review – All test results are stored in the internal memory of the unit.

They can be viewed through the screen or downloaded to a PC. Each test records the

time, date, temperature, humidity and test results.

Peak Reset – During a manual balance test where Balance Duration has been disabled

the M BALANCE will show BalDur=XXXXs which means that the test will run

continuously until STOPped. Pressing the PkRst key at any time will reset the displayed

peak values to zero and the timer will continue to run until it reaches 999.9s then the

decimal point will shift and the display will run to 9999s (or about 2 hours and 47

minutes). Beyond that, an overrun error is displayed.

Plate Voltage Bar graph – Three ranges are provided with a maximum resolution of less

than 10 volts for making very fast assessments of plate voltage and polarity around zero.

Power – The unit will run on either AC or battery power. The internal rechargeable

battery will supply up to six hours of operation.

Charge Plate – A 6″ X 6″ plate comes standard with the 288. When it is detached from

the base unit it comes with the ground plane plate or can be taken off as a separate item.

Mounting hardware allows the plate to be attached to the side of the unit, connected to a

tripod via ¼ -20 threaded insert or put into any variety of situations to measure ionization.

A 5-foot extension cable comes standard with the unit.

To release the detachable charge plate only, slide it forward. To remove the complete

charge plate and ground plane assembly, press the release button with a suitable tool

and swing the assembly slightly to the right.

For those space restricted applications, there are several optional plate sizes available

down to 1” x 1”. Consult factory for other sizes and availability.

Grounds – A ground snap is provided on one corner of the ground plane and a ground

jack is provided on the back panel. The instrument chassis is normally connected to

ground via the power cord during AC operation and the ground plane is connected to the

chassis when the unit is assembled. Grounding is essential to proper operation.

Analog Output – An analog output jack is provided on the back panel.