MEGGER MS-2A Circuit Breaker and Overcurrent Relay Test Set

Ammeter

Operating Modes (switch-selected)

Memory

Normal

Display: 31/2 digit, extra-bright LED display with 0.3 in. (7.62mm) numerals

Ranges (switch-selected): 0 to 1.999/19.99/199.9/750 A

Continuous Accuracy (overall ammeter system)

±1% of reading, ±1 digit on three high ranges

±1% of range, ±1 digit on low range

Timer

Display: 5-digit, extra-bright, LED display with 0.3 in. (7.62mm) numerals

Ranges (switch-selected)

0 to 99.999 s

0 to 999.99 s

0 to 99999 cycles

Accuracy: ±0.005% of reading, ±1 digit

Timer Control Circuit: This circuit automatically starts the timer when the output is energized

and automatically stops the timer and de-energizes the output when

the device under test operates. This circuit accommodates the following

test conditions by simple switch selection of the appropriate mode:

Current Actuated: Used to test a device that has no auxiliary contacts

to monitor, such as a single-pole circuit breaker. The timer stops when

the output current is interrupted.

Normally Closed: Used to test a device with normally closed contacts.

The timer stops and the output is de-energized when the contacts open.

Normally Open: Used to test a device with normally open contacts. The

timer stops and the output is de-energized when the contacts close.

Enclosure: The test set is housed in a high strength, molded, suitcase-type

enclosure with carrying handle and removable cover. Storage space is

provided for test leads.

Dimensions: 18 W X 9.5H X 13.5 D in. (457.2 W x 241.3 H x 342.9 mm)

Weight: 33 lb (15 kg)

Datasheet