Vintage APC Balance tester (Pair-A-Matic) Model BT-10 Splicing System

Description

Vintage APC Balance tester (Pair-A-Matic) Model BT-10.
.
⦾The APC balance tester, Model BT-10 (Fig. -1)
is a solid state unit which contains the
electronics to perform the actual balance test. This
instrument is interconnected with the CS-10
pair-a-matic b~· means of a multilead electrical cable
and connector.
2.1 0 The balance tester can also be used independently
of the pair-a-matic with a special test cord.
This cord enables the user to test cable pairs by
connecting· the pairs directly to the balance tester.
⦾ The BT-10 balance tester has the following
major components and controls:
(a) Error Sig ri"'al Meter: Shows the amount of
unbalance between the reference pair and
the test pair.
(b) Man ual Test Pushbutton: Actuation of
this switch tums on the test and is used
with the manual test probes on the CS-10.
(c) Battery Test Pushbutton: Tests the
condition of the 2-1 \'Oit batter~ A reading
in the green "B:\ TT" area indicates a good
battery.
(d) Gain Control: Adjusts the threshold <~t which the alarm in the BT-10 is activated.Battery Compartm ent with Cord Storage:
Location of 24 volt battery and cord storage
when set is not in use.
(f) R e fer en ce Pair Clip: Connects to pair used
as a reference pair.
(g) 12 Pin Connector Cord: Cord for connection
between the BT-10 and the CS-10.
(h) Safety/ Carrying Str ap : Used for carrying
the unit and for attaching to the aerial strand
or cable rack.
(i) Son al ert Signal: Solid state device which
emits an audible sig-nal when a defective
pair is detected
Condition is "Used".
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