Probewell MT-1/WT3, User Manual, Page: 13 / 86

Probewell Lab Inc.
Page • 12
Identification Description
Rear Tabs The rear tabs connect the socket to the front jaws of the
meter base. The socket gets its power directly from the
meter base (100-600VAC) circuit. The service current
shorting bars (bypasses) are rated for high capacity
amperage.
Removable Tabs These tabs can be positioned at 3, 5, 6, or 9 o'clock
position as required by the meter base where the test is
conducted. See Appendix C.
Form Selector In position 1S, 2S, and 15S, the unit is powered from the
two upper tabs. In position 3S, 12S, 14S and 16S, the unit
is powered from the Phase C and the neutral tab. In
position 4S, 6S, 8S and 9S the unit is powered from the 3
and 9 o'clock tabs.
Circuit Breakers Protection for the MT-1/WT3 and the meter. Two circuit
1A breakers which can be reset by pressing a spring-
loaded button.
Power Switch Socket's main power on/off switch.
Front Jaws The front jaws are controlled by internal relays allowing
to test meters. The front jaws become live only when a
meter is inserted. The voltage on the front jaws is current
limited for additional protection.
Pistons These are actuated by the small lugs on the back of the
meter when inserted for testing.
I/O Connector Isolated full-duplex communication port. It also provides
an isolated and current limited low voltage supply for the
accessories (optical pickup and metercam) and the
optional handheld remote control.
QR Code Sticker
The QR code sticker contains the access point
information to be scanned for a mobile device as well as
the MAC address.
LED Socket Status Indicator.
Magnetic Switch Switch for any manual entry using a magnet.
Air Vent (1) Warm air exit. A 5 CFM miniature fan forces air
circulation inside the socket.
Air Inlet (1) Cool air input. Filtered through polyurethane foam filter.
(1)
Do not block air circulation. Keep away from direct heat or flame.