Mounting; General Instructions - KROHNE OPTISWITCH 5300 Handbook

4 Mounting

Process conditions
Suitability for the ambient
conditions
Switching point
12
4 Mounting
4.1

General instructions

Note:
For safety reasons, the instrument must only be operated within the
permissible process conditions. You can find detailed information on
the process conditions in chapter " Technical data" of the operating
instructions or on the type label.
Hence make sure before mounting that all parts of the instrument ex-
posed to the process are suitable for the existing process conditions.
These are mainly:
•
Active measuring component
•
Process fitting
•
Process seal
Process conditions in particular are:
•
Process pressure
•
Process temperature
•
Chemical properties of the medium
•
Abrasion and mechanical influences
The instrument is suitable for standard and extended ambient condi-
tions acc. to DIN/EN/IEC/ANSI/ISA/UL/CSA 61010-1. It can be used
indoors as well as outdoors.
In general, OPTISWITCH 5300 C can be installed in any position.
The instrument only has to be mounted in such a way that the tuning
fork is at the height of the desired switching point.
The tuning fork has lateral markings (notches) that indicate the
switching point with vertical mounting. The switching point applies
to water in conjunction with the basic setting of the density switch
≥ 0.7 g/cm³ (0.025 lbs/in³). When mounting OPTISWITCH 5300 C ,
make sure that this marking is at the height of the requested switch-
ing point. Keep in mind that the switching point of the instrument will
shift if the medium has a density other than water - water is 1 g/cm³
(0.036 lbs/in³). For products ≤ 0.7 g/cm³ (0.025 lbs/in³) and ≥ 0.47 g/
cm³ (0.017 lbs/in³) the density switch must be set to ≥ 0.47 g/cm³.
Keep in mind that foams with a density ≥ 0.45 g/cm³ (0.016 lbs/in³)
are detected by the sensor. This can lead to erroneous switchings,
particulary when the sensor is used for dry run protection.
OPTISWITCH 5300 C • Two-wire 8/16 mA