-9 -
6.
Frequency adjustment
Fig.6
Adjustment needle
Fig.7
Adjustment needle
Expansion
Caution
・
ON time is shortened by rotating the ON time adjustment needle counterclockwise.
・
OFF time is shortened by rotating the OFF time adjustment needle counterclockwise.
・
Refer to the scale as a guideline for resetting. ON time ratio does not become 50% even
when setting the adjustment needle for ON and OFF at the same value.
・
Small amount of leakage exists even when the needle is fully close. Do not use the
adjustment needle for the stopping of operation.
・
When one needle is adjusted, the time for the opposite side will be slightly changed.
・
Internal pilot: 1 to 5HZ and external pilot: 1 to 8Hz is reference.
・
The charts on page 10 show the relation for the adjustment needle value and operation
frequency. However, there is approx. 2Hz of variation depending on individuality.
・
Operating conditions affect the operating frequency.
Except for the adjustment needle, conditions below affect the operating frequency.
(1) Bore size and piping length (upstream and downstream)
(2) Supply pressure (the higher, the faster)
(3) Nozzle (The smaller of the exhaust port, the faster)
・
Blow air may not become pulse air depending on the volume of the downstream.
Keep the product close to the nozzle as much as possible. (Guideline 1m)
Scale
(0 to 8)
