Flowserve LRGT 16-1, Руководство по установке

Страница: 20 / 32

20
1 2 3 4 5
-
-
-
+
+
+
1 I
2 U
U 3
4
5
6
I
1
2
3
5
6
4
1
ON
2 3 4 5 6 7 8 9 10
To supply the conductivity transmitter with 24 V DC, a safety power supply unit (PSU), e.g. Siemens
SITOP power 05, must be used; this must provide a level of isolation against voltages hazardous to
touch that at least meets the requirements for double or reinforced insulation as per DIN EN 50178 or
DIN EN 61010-1 or DIN EN 60730-1 or DIN EN 60950 (electrically protective separation). The PSU must
be equipped with a protective device to DIN EN 61010-1.
Tools

Screwdriver for cross-recess head screws, size 1

Screwdriver for slotted head screws, size 2.5, completely insulated to VDE 0680-1

Open-end spanner 12 A. F.

Open-end spanner 18 (19) A. F.
Safety power supply unit for LRGT 16-1, LRGT 16-2, LRGT 17-1
Electrical Connection
– continued –
Wiring diagram for conductivity transmitter LRGT 16-1, LRGT 17-1
Fig. 11
Terminal lug
Connecting point for
functional earth
Earth
Measuring
electrode
Toggle switch, white
4 - 20 mA
load, max.
750 Ω
24 V DC
Temperature
sensor
Pt 1000