GESTRA URS 2, Руководство по установке

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Apply mains voltage to the limit switch URS 2.
Commissioning
Make sure that the URS 2 is wired according to the wiring diagram.
Fig. 10
Checking electrical connection
Applying mains voltage
Performance test
1. Increase the 0/20 mA signal of the external measuring sensor until it exceeds the MAX
switchpoint adjusted in the URS 2. The LED
8
must light up and the MAX relay must be energized.
2. Decrease the 0/20 mA signal of the external measuring sensor until it falls below the MIN
switchpoint adjusted in the URS 2. The LED
0
must light up and the MIN relay must be energized.
Limit switch
Operation
Operation in combination with external measuring sensors, e. g. GESTRA level transmitter NRT 21b,
continuous blowdown controller LRR 15b und conductivity transmitter LRT 15b, LRT 16b or level
monitoring system NRGT 261 and conductivity monitoring system LRGT 161, LRGT 162.
Limit switch
Note
n
To analyse and eliminate malfunctions refer to section “Fault finding list for trouble
shooting” on page 17.