Daiichi Electronics FTT2-91A Manual de instrucciones - Página 12

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9. Calibration

Because this product is adjusted, there is not need of calibration especially.
However, if discrepancy arises in an output in long-term use, please adjust in the next way.
Remove the terminal cover and VR cap before adjustment, and attach the VR cap and terminal cover after adjustment.
(1) For the output load, connect an actual load (within the output load range indicated on the name plate)
or a simulated load with the same resistance value as the actual load.
(2) Apply the auxiliary power supply (rated) and the input equivalent to 50% of the rated output value,
and energize for 15 minutes.
(3) Enter the lower limit of the rated output range and adjust with BIAS adjustment VR so that the output
becomes the lower limit.
Next, enter the upper limit of the rated output range and adjust the MAX adjustment VR so that the
output reaches the upper limit.
(The screwdriver for adjustment：Tip width of 1.8 to 2.3mm, Phillips-head screwdriver or flat-blade
screwdriver)

10. Type composition

Frequency Transducer
Type
Specification code
F T T 2 - 9 1 A - ① ② ③ ④ ⑤
① Model
② Input
B
Model B
1
45 to 55Hz
2
55 to 65Hz
3
45 to 65Hz
Z
Other
Tokyo Office : 11-13, Hitotsuya 1-chome, Adachi-ku, Tokyo, 121-8639, JAPAN.
TEL：+81-3-3885-2411 , FAX：+81-3-3858-3966
Kyoto Office : 1-19, Ichinobe-Nishikawahara, Jyoyou-shi, Kyoto, 610-0114, JAPAN.
TEL：+81-774-55-1391 , FAX：+81-774-54-1353
Revision A, DATE：November 1, 2022
③ Rated voltage
④ Output (Output load range)
1
AC100V
2
DC0 to 1V
2
AC105V
3
DC0 to 5V
3
AC110V
4
DC0 to 10V (2kΩ or more)
4
AC115V
5
DC1 to 5V
5
AC200V
A
DC0 to 1mA (10kΩ or less)
6
AC210V
B
DC0 to 5mA (2kΩ or less)
7
AC220V
C
DC0 to 10mA (1kΩ or less)
Z
Other
F
DC4 to 20mA (550Ω or less)
Z
Other
11
⑤ Auxiliary supply
(200Ω or more)
AC80 to 264V
(600Ω or more)
F
DC80 to 264V
AC/DC power supply
(600Ω or more)
3
DC20 to 57V
Z
Other
Q-222-035