Yokogawa Button Operated DX2000 Bedienungsanleitung Seite 314

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Seitenansicht 313
11-21
IM 04L42B01-01E
Troubleshooting
1
2
3
4
5
6
7
8
9
10
11
12
13
App
Index
Does the input meet
the specifications?
NO
NO
NO
NO
NO
YES
YES
YES
YES
• The error is large.
• The trend or digital values fluctuate.
• The trend is off the scale on either the 0% or 100% side.
YES
Change the input to meet the
specifications.
Is the input wiring correct?
Attach the input terminal cover properly.
Protect the input terminal from wind or
fans.
Keep the temperature fluctuation near
the input terminal to a minimum.
Adjust the span and range (section 3.3).
If you use Calibration Correction (/CC1
option), check the set values for
correction points (section 3.9).
Is the range/span
setting appropriate?
Taking measures
against noise?
Is the environmental
temperature kept constant
(TC input)?
Separate the input wiring from the
noise source.
Ground the recorder.
Ground the measured object properly.
Insulate the TC from the measured object.
Use shielded cables for input.
Change the integral time of the input
A/D converter (section 3.1).
Use moving average on the input
(section 3.4).
Wire correctly (O.G.).
Install the terminal block correctly.
Fasten the terminal screws correctly.
Insulate the RTD from the ground.
If burnt, replace the TC.
Is the input wiring parallel
with other equipment?
YES
NO
NO
YES
Is the RJC setting correct
(TC input)?
Stop the TC burnout upscale/downscale
function of other equipment.
Ground the DX and other equipment
at one point.
Disconnect parallel wiring
(use a double-element TC, for instance).
Set it correctly.
Contact your nearest YOKOGAWA
dealer.
Section 3.2
Section 12.1
O.G.: Operation Guide
11.2 Troubleshooting
Seitenansicht 313
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