ABB 4623, Руководство пользователя

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3.1 Siting Requirements
3.1.1 Instruments – Fig. 3.1
Caution.
• Mount in a location free from excessive vibration.
• Mount away from harmful vapours and/or dripping fluids.
Information. It is preferable to mount the
instrument at eye level, allowing an unrestricted view of
the front panel displays and controls
3.1.2 Conductivity Cells – Fig. 3.2
Caution. Ensure that the integral cable (where
applicable) does not hang against hot or abrasive objects
when the plug is connected to the bulkhead socket.
✶
Note. Allow sufficient clearance for easy removal of
cell for cleaning – see Section 3.4 for overall dimensions
of cells.
Conductivity
Cell
IP66
C – Within Environmental Limits
55
°
C
Max.
–20
°
C
Min.
B – Within Temperature Limits
Maximum Distance
164 ft. (50m) – cell
constant <0.05
A – Maximum Distance of Instrument to Cell
Acid – 6% Concentration
C – Acid/Alkali Concentration Limits
Alkali – 8% Concentration
B – Maximum Pressure Limits
A – Maximum Temperature Limits
Max. Temperature – 230
°
F (110
°
C)
Max. Pressure – 150 p.s.i.
Model 2278
Model 2278
Model 2278
3 MECHANICAL INSTALLATION
Fig. 3.1 Siting Requirements – Instrument Fig. 3.2 Siting Requirements – Conductivity Cell