YOKOGAWA MC43, Руководство пользователя

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< Appendix 1. Pressure Elements >
A1-3
IM 02M04B01-01EN
(2) Calibration Procedure
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3
2
5
Element
nameplate
1. Set pressure at minimum value (see range on
element nameplate).
2. If pointer does not read correctly, use zero
adjustment to reposition pointer.
3. Set pressure at maximum value. If pointer does
not read correctly, use multiplication adjustment
to reposition pointer about halfway toward
correct reading.
4. Repeat steps 1, 2 and 3 until both readings of
pointer are correct.
5. Set pressure at mid-range. If pointer is not at
midscale, adjust length of link to move pointer
about 5 times amount of error in direction of
error. (Subsequent refinement in settings
of adjustments will bring instrument into
calibration).
6. Repeat steps 1 through 5 until all readings of
pointer are correct.
(3) To Replace Measuring Element
FA0107.ai
1
2
3
1. Disconnect link from pointer movement. Note
which hole link is in. (A precalibrated link
and mounting plate are supplied with each
replacement element).
2. Trace outline of mounting plate to indicate
location for replacement. Remove the two
mounting screws.
3. Unscrew tubing connection and remove
assembly.
4. After replacing element assembly, check
calibration.