YOKOGAWA WE440, Руководство пользователя

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<2. Installation>
2-1
IM 12Y18A04-01EN 1st Edition : Oct. 04, 2019-00
2. Installation
The instrument is designed for general-duty, indoor installations. The electronics enclosure
environmental rating is NEMA 12 and the Fluidics enclosure is a NEMA 4X fiberglass with a clear
door window.
The WE440 Phosphate Analyzer should be installed in a well-ventilated location, with ambient
temperature between 5°C and 45°C (41°F to 113°F); and relative humidity not to exceed 90%
at 40°C. The area must be free from dust, corrosive gases, vibration and shocks; sheltered from
direct sunlight, and shielded from dripping water. Power should be instrument grade with over
voltage protection, and a provision for disconnecting power.
2.1 Mounting the Instrument
The instrument case is designed for wall or panel mounting.
• Use four #10 screws or equivalent for proper support.
• Refer to Figure 2.1 and Figure 2.2 for dimensions (in mm and inches).
• Make sure that the wall that you choose can support the weight of the instrument
(approximately 20 kg or 44 lbs.) See Figure 2.1.
• Locate the instrument as close to the sampling point as practical to ensure complete purging
of the sample line during each cycle.
• Allow approximately 50 cm (20 in.) of clearance at the left side for door swing. Also allow
enough clearance on the right side for wiring conduit.
• Locate the analyzer height such that the display is at eye-level height for an operator,
allowing also for appropriate sample and drain connections.
         
AIR VENT
SAMPLE RETURN (1/4”)
SAMPLE IN (1/4”)
VENT LINES
DRAIN (3/8”)
I/O SIGNALS
POWER IN
304.8 (12.0)
132 (5.19)
25 (0.98) 30 (1.18)
162 (6.4)
406 (16)
674.6
(26.56)
698
(27.5)
152
(6)
41
(1.62)
330.3
(13.0)
AIR PURGE
70 (2.75)
Unit: mm (inch)
Mounting holes 4-ø8.0 (0.313)
Figure 2.1 Mounting dimensions