Ytc YT-1000L, Product Manual

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YT-1000/1050 series
5.1.3 YT-1000/1050R with Internal Options <Option>
Cam can be adjusted for YT-1000/1050R with options by dissembling the cam from the main
shaft. After dissembling the cam from the main shaft, please follow 5.1.2 for RA or DA cam.
5.2 Adjustment – Zero Point
1. Set supply signal at 4mA or 20mA – according to RA or DA – and
rotate the adjuster up or downward to adjust actuator’s initial point.
As zero point is being set, the specification of the valve system must
be considered. Please refer to diagram on the right to increase or
decrease the zero point.
5.3 Adjustment – Span
1. After setting zero, supply signal at 20mA or 4mA – according
to RA or DA – and check the actuator stroke. If the stroke
is too low, the span should be increased. If the stroke is
too high, the span should be decreased.
2. Changing span point will affect zero point setting. Zero
point should be set again after span has been adjusted.
This step is required until both zero and span are properly
set.
3. After proper setting, tighten lock screw.
5.4 Adjustment – SPTM <Option>
5.4.1 Setting Point Switch
There are two types of calibration of SPTM / feedback signal.
1. 2 Point Setting
This setting only set minimum and maximum point (0% and 100%). In between points