Yokogawa DM8C/VD6 Liquid Density Analyzer - Manual (Page 32)

< 3. INSTALLATION, PIPING AND WIRING >
3-6
IM 12T03A01-02E
3.2 Installation of Density Converter
3.2.1 Installation Area
The density converter should be installed in the place described below;
(1) The vicinity of the sampling unit where maintenance or calibration is made easy. The density
converter is designed dustproof and rainproof structure so that it can be installed outdoors.
However, when it is used with the Model VD6DF fl ameproof detector, it cannot be installed the
hazardous area, must be installed in the nonhazardous area. Further, when digital output signal
is used for a receiver, able length between the converter and the receiver should be 10 m or less.
(2) Free from vibration.
Vibration may cause illegal contact in electric circuits.
(3) Avoiding from direct sunshine.
This instrument can be used in an ambient temperature of -10 to 55 °C. However, direct
sunshine in summer may heat the instrument over the range.
(4) Free from corrosive gases and dusts.
The structure of this converter is dustproof and rainproof. However, for maintenance (with
opening front door of the converter), installation in better environment is recommended. For the
same reason, the following (5) and (6) are conditions for selecting installation area.
(5) Avoiding excessive humidity.
(6) Avoiding wide temperature variation.
3.2.2 Installation of Density Converter
The density converter can be installed on a panel or a wall or 2-inch pipe. The pipe should be vertical
to fi x the mounting bracket on it (see Figure 3.8).
(Note) Mounting attitude is free from the converter performance. Mounting should be made of the
following procedures.
Washer
Spring washer
Bolt (M8x10)
Pipe mounting
hardware
Mounting bracket
Converter
Bolt (M8x14)
Figure 3.8 Pipe Mounting