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SW3
Position
Sensitivity
0
.5 pF, Very High
1
1 pF, High
2
2 pF
3
3 pF
4
5 pf, Medium
5
8 pF
6
10 pF, Low
7
15 pF, Very Low
SW5
Position 2
Time Delay Mode
On
The delay set on SW4 is applied when material touches the probe
Off
There is no delay when material touches the probe
SW5
Position 3
Time Delay Mode
On
The delay set on SW4 is applied when material leaves the probe
Off
There is no delay when material leaves the probe
Figure 3. Sensitivity Settings
Figure 5. Time Delay Mode Settings
(See Fig. 2)
Figure 1. VRF-2000 Electronics
Failsafe Selection
High Level Failsafe Operation
· DIP Switch SW5 position 1 is on.
· If the electrical power fails, the relay turns off. This indicates material as if the
tank were full.
Low Level Failsafe Operation
· DIP Switch SW5 position 1 is off.
· If the electrical power fails, the relay turns off. This indicates material as if the
tank were empty.
SW4
Position
Time Delay
0
200 mSec
1
1 Sec
2
2 Sec
3
5 Sec
4
10 Sec
5
20 Sec
6
30 Sec
7
60 Sec
Figure 4. Time Delay Settings
(See Fig. 5)
(See Fig. 4)
(See Fig. 3)
The output relay contacts are labeled in the un-powered alarm state. The relay is energized
when the VRF-2000R is not alarmed. This status may be opposite that of other Bindicator
®
brand units. If the VRF-2000R is replacing an older Model RF unit, connections will need to
be opposite. If a connection was made to NC1 terminal of the RF, connect now to the NO1
terminal of the VRF-2000R. C1 and C2 connections would remain the same.
Содержание VRF-2000R Series
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