Burkert Type 8035 - Manual (Page 21)

19
Technicaldata
Digital inputs Di1 to Di4
• commutation threshold V
on
• commutation threshold V
off
max.
• min. pulse duration
• input impedance
• protection
• 5 to 36 V DC
• 2 V DC
• 100 ms
• 9,4 kW
• galvanically isolated, and protected against polarity
reversals and voltage spikes
6.3.4 specifications of the connected flow sensor (panel-
mounted and wall-mounted versions)
Signal originating from the remote
sensor
• type
• frequency
• max. voltage
• pulse, sine-wave (typical sensitivity 50 mV peak-to-peak at 250 Hz),
"on/off", or standard voltage 0-5 V DC
• 0,6 Hz to 2,2 kHz, can be adjusted
• 36 V DC
Input impedance depends on the position of selector "LOAD" on the electronic board of
the 8025.
See chap. “7.6.4” and “7.6.7”.
Power supply, if the dosing controller is
energized with a 12-36 V DC voltage supplied by the dosing controller depending on the position of
selector "SENSOR SUPPLY" of the 8025, 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.
Power supply, if the dosing controller is
energized with a 115/230 V AC voltage supplied by the dosing controller depending on the position of
selector "SENSOR SUPPLY" of the 8025, 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.
6.3.5 electrical connection
Type of connection on the terminal blocks of the electronics (and through
cable glands for the compact and wall-mounted
versions)
English
Type 8025 - 8035 BATCH