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Technical data
Digital inputs DI1 to DI4
• commutation threshold V
on
• 5...36 V DC
• commutation threshold V
off
max. • 2 V DC
• min. pulse duration • 100 ms
• input impedance • 9,4 kW
• protection • galvanically isolated, and protected against polarity
reversals and voltage spikes
6.3.6 Specifications of a remote flow sensor connected to a
8025 Batch in wall-mounted version
Signal from the remote sensor
• type • pulse, sine-wave (typical sensitivity 50 mV peak-to-peak at 250 Hz),
"on/off", or standard voltage 0...5 V DC
• frequency • 0,6...2200 Hz, can be parametered
• max. voltage • 36 V DC
Input impedance
depends on the position of selector "LOAD" on the electronic board of the
8025 Batch in wall-mounted version. See chap. 8.8 and 8.9.
Power supply
• dosing controller supplied
with a 12...36 V DC voltage
supplied by the dosing controller depending on the position of selector
"SENSOR SUPPLY" of the 8025 Batch in wall-mounted version, either:
• 5 V DC, 30 mA max.
• (L+) – 12V: supply voltage (L+) of the dosing controller minus 12 V DC
(minus 12,5 V DC max.), 80 mA max.
• L+: supply voltage (L+) of the dosing controller (minus 1,5 V DC max.),
140 mA max.
dosing controller supplied with
a 115/230 V AC voltage
supplied by the dosing controller depending on the position of selector
"SENSOR SUPPLY" of the 8025 in wall-mounted version, either:
• 5 V DC, 30 mA max.
• (L+) – 12V: 27 V DC minus 12 V DC (minus 12,5 V DC max.), 80 mA max.
• L+: 27 V DC, 80 mA max.
English
Type 8025 - 8035 - SE35 BATCH