Yokogawa GD40 Gas Density Detector - Manual (Page 3)

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IM 11T3E1-01E
<Introduction>
l Cross-Checking the Specifications
CAUTION
The GD402 gas density meter is shipped after adjusting the both of detector and converter in
pairs. When installation, confirm whether the serial number on both of converter and detector are
in pairs or not. If mismatched in pairs, converter is to be out of order. When converter or detector
supplied individually, enter the detector constants, described on inside the lid of the GD40, into
converter so that the GD402 is going to be well.
In detail, please refer to Figure 5.30, Figure 6.31 or Figure 7.28.
Upon delivery of the purchased product, unpack it carefully and make sure it is completely free
from damage that may have occurred during transport. It must be shipped in strict conformance
to the purchaser's specifications. By way of precaution, confirm that the equipment is the exact
model you ordered. Also check that all accessory components are included, when confirming the
specifications, refer to the model and suffix codes indicated on the nameplate on the equipment.
For a description of the model and suffix codes, refer to Chapter1,''Specifications.''
l Consideration of Operation Parameters
The GD402 operates with the same parameters set when it was delivered (default data) , when it
is put into operation under these conditions.
Before starting measurement, check whether or not the default data meets your operating condi-
tions. If necessary, re-set the parameters to suit your operating requirements.
To check the defaults, make use of the sheet, “Records of GD402’s Operation Parameter Set-
tings,” in the back of this manual. It is advisable that, if any of the operation parameter settings
have been changed, the new data be noted in this record.
l Information Covered in This Manual
This manual covers all of the information for handling the GD402 converter and the GD40 detec-
tor, including instructions on installation, operation, setting of operation parameters, inspection
and maintenance.
CAUTION
Modification and adaptation of the instrument’s parts, wiring and construction are prohibited.