Probewell Lab Inc.
Page •12
The rear tabs connect the socket to the front jaws of the
meter base. The socket gets its power directly from the
meter base (100–600 VAC) circuit. The service current
shorting bars (bypasses) are rated for high capacity
amperage.
These tabs can be positioned at the 3, 5, 6, or 9 o'clock
position as required by the meter base where the test is
being conducted. See Appendix C.
In position 1S/2S/15S, the unit is powered from the two
upper tabs. In position 3S/12S/14S/16S, the unit is
powered from the Phase C and the neutral tab. In
position 4S/6S/8S/9S, the unit is powered from the 3 and
9 o'clock tabs.
Protection for the MT-1/WT3 and the meter. Two 1 A
circuit breakers, which can be reset by pressing a spring-
loaded button.
Socket's main power On/Off switch.
The front jaws are controlled by internal relays used to
test the meters. The front jaws only become live when a
meter is inserted. The voltage on the front jaws is current
limited for additional protection.
These are actuated by the small lugs on the back of the
meter when inserted for testing.
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.
The QR code sticker contains the access point
information to be scanned for a mobile device as well as
the MAC address.
Switch for any manual entry using a magnet.
Warm air exit. A 5 CFM miniature fan forces air
circulation inside the socket.
Cool air input. Filtered through a polyurethane foam
filter.
(1)
Do not block air circulation. Keep away from direct heat or flame.
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