Endress+Hauser Nivotester FTL325P - Page 29

Nivotester FTL325P, 3-channel Commissioning
Endress+Hauser 29
8.2.12 CH2 + CH3 (Δs), MAX safety mode without fault signaling CH1
CH1
CH3CH2
CH2
CH3
CH3
CH2
D
s
gn
gngngngn
gn
1 1 1 1 1
1 1
ye ye
rd rd
ye ye
1 2
0 V
15
15 15 15 15
37 38
33 34
– +
– +
22 23 24 22 23 24
22 23 24 22 23 24
22 23 2422 23 24
22 23 24
26 27 28 26 27 28
26 27 28 26 27 28
26 27 2826 27 28
26 27 28
16
16 16 16 16
15
15
16
16
2
2
2
2
2
2
2
3
3
3
3
3
3
3
MODE 1
1 2
ON
MAX
MAX
1 2
ON
A0039207
 27 Switching behavior and signaling
Δs, e. g. Pump control at one tank
• 1 sensor (H level) connected at input channel 2 (terminals 33 and 34)
• 1 sensor (L level) connected at input channel 3 (terminals 37 and 38) .
Relay outputs of output channels 2 and 3 switch simultaneously→  27,  29
This ensures, for example, that a pump can be switched on at L level and switched off at
H level.
Fault signaling for channel 1 must be switched off.
When using the Liquiphant FTL51B sensor with electronic insert FEL67, sensor (H level)
FEL67 must be set to MAX safety and sensor (L level) FEL67 must be set to MIN safety.