Afriso EURO-INDEX RG 210 Руководство по эксплуатации - Страница 17

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6.5

Function test

Operation

RG 210 automates the control of pumps and valves. The operation

of the RG210 is limited to its regular monitoring:

•

Maintenance

8.1

Maintenance intervals

Table 4: Maintenance intervals

When

Once per

year

At regular

intervals

RG 210

The connected PTC thermistor(s) are heated up after approx.

8 seconds, provided they are not submerged in liquid.

Perfom a function test, refer to chapter 6.5, page 17.

Submerge the probe(s) in liquid.

The yellow LEDs must light up immediately.

Remove probe(s) from the liquid.

After approx. 8-15 seconds the yellow LEDs must change the

switching state.

Observe the green LED and the relay.

The function sequence must correspond to the description of the

selected operating mode in chapter 3.1, page 7.

Function check OK.

Probe free from deposits.

Activity

Perfom an operation test.

Check the probe(s) for deposits.

There must be no deposits on the glass housing

of the PTC thermistor. If the PTC thermistor is pol-

luted, replace

Perform suitable checks to ensure that the level

switch and its environment are always clean, ac-

cessible and easy to oversee.

probe(s).

Operation