测
试
夹
具
对
应
脚
位
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1
10
TH1901A TRANSFORMER TEST FIXTURE
TONGHUI
ELECTRONICS
20
11
START
NG
RESET
GOOD
!
2 3 4 5 6 7 8 9
10
4567
WARNING：
Clean the fixture in time for accurate measurement；
Mold the pins of transformers before measurement;
Cover the fixture after use to avoid dust.
32
81 9 1011
15
TH1901A
Introduction to the marking numbers:
1) Silencer: This is a silencer used for noise reduction and dust proof (only for TH1901A).
2) Test fixture: This fixture is flexible and replaceable.
3) Cylinder: This is the main driving force for TH1901A; For TH1901B/TH1831, the motive
force is from a manual push rod.
4) RESET button: When pressing this button, all tests will be terminated and the instrument will
recover to the original preparing test state.
5) GOOD indicator: If the specified test results meet the preset requirements, this indicator will
light up, which indicates that the tested device is GOOD.
6) START button: It is used to control test. Press this button, the instrument will start test.
7) NG indicator: If one or two test results cannot meet to the preset requirements, this indicator
will light up, which indicates that the tested device is NOT GOOD.
8) Inlet of the air pipe：This is the connection interface connecting with external air pipe. Note: It
is recommended to install a water filtering device between the inlet and the inlet valve so as to
improve the service life of the cylinder and the inlet valve. (This inlet is unavailable for
TH1901B/TH1831.)
9) Speed control knob: The knob is used to adjust the driving speed of the cylinder. （none for
TH1901B/TH1831）
10) Control socket of air valve controller (electromagnetic valve): The switch for controlling
TH1901A and the cylinder. The power is DC24V. There is no such a controller in
TH1901B/TH1831.
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