SIGMA S2Ba - Manual (Page 24)

Page 24 Pr o Minent ®
Dulcodes UV-Desinfektionsanlage Product description S2Ba/S2Ca
Material in contact with metered medium
Liquid end: Parts of diaphragm failure monitor in contact with medium
Lens, seals Intermediate disc Item 147,
Item 148, 156, 159 intermediate bush Item 150
PVDF PTFE PVDF
Stainless steel 1.4571 PTFE PVDF
Electrical data for the diaphragm breakage sensor
a) Switch contact
30 V DC/1 A or 125 V AC/0.6 A or 250 V AC/0.3 A
The diaphragm sensor is a N/C relay.
IMPORTANT
Before commencing operation, install the provided diaphragm breakage sensor together
with the gasket (Item159) and make the electrical connections.
NOTE
• For safety reasons it is advisable to connect a safe low voltage (e.g. EN 60335-1 (SELV)).
• The cable priority is arbitrary.
b) Namur sensor, intrinsically
5-25 V DC, Namur type and/or DIN 19234, zero volt design.
Rated voltage: 8 V DC (R
i
~ 1 kΩ)
Power consumption:
Active surface, uncovered > 3 mA
Active surface, covered
< 2 mA
Rated switching distance: 1.5 mm
The monitor/feeder must be capable of evaluating current changes in order to indicate
diaphragm rupture!
WARNING
• EX-pump only: Installations in potentially explosive atmospheres must be inspected by
an “accredited qualified” person. This applies in particular also for intrinsically safe
electrical circuits.
• EX-pump only: observe documents supplied with the sensor!
IMPORTANT
• Before commencing operation, install the provided diaphragm breakage sensor together
with the gasket (Item159) and make the electrical connections.
• For pump without EX protection: For safety reasons it is advisable to connect a safe low
voltage (e.g. EN 60335-1 (SELV)).
Blue -
Brown +