Continuous and precise level measurement in unpressurised, open basins and tanks as well as underground applications such as shafts, wells and boreholes.
Properties
Protection class EN60529
:
IP 65
Operating temperature
:
-10...70 °C
Storage temperature
:
-25...70 °C
Power supply
:
15...30 V DC
power
:
max. 25 mA
Output
:
2-Leiter-Technik | 4...20 mA
Measuring range
:
0,8...10 mWs (Standard)
Overpressure
:
ca. 20 %
Deviation from characteristic curve
:
Nichtlinearität,
Insulation resistance
:
> 100 kΩ
Short-circuit resistance
:
permanent
Reverse polarity protection
:
keine Schädigung o. Funktion bei vertauschten Anschlüssen
Maximum flexibility for an optimal choice of measuring instrument: The VS-D250 transmitter is compatible with all ViscoScope® sensors of the types VA-100 and VA-300.
Properties
Output card socket
:
2
External input
:
0/4…20 mA | 0/2…10 V DC
Power supply
:
24V DC, 12 W
Dimensions
:
142 x 106 x 73 mm (L x B x H)
Front
:
RS232, MODBUS RTU (Standard)
Display and Operation
Lines
:
4
Pages
:
2
Character set
:
alphanumerisch
Buttons
:
3 (front)
Alarms
system function
:
sensor diagnosis
:
Coil Temperature
:
2 configurable LEDs
:
optional outputs
0/4…20mA | 0/2…10V DC (active)
:
RS232 | RS485
:
2 SPDT-Relays: RS232 | RS485
:
Filter
Moving average (200 measured values)
:
Ex-BK
Bistable change-over contact
Magnetically actuated changeover switch,
which permanently changes its electrical switching state as a result of a magnetic system passing by, depending on the direction of movement.
Properties
Protection class EN60529
:
IP 65
Operating temperature
:
–20...+120 °C
Wire cross-section max.
:
1,5mm²
Switching point distance between two contacts
:
min. 40 mm
Switching hysteresis
:
ca. 10-15 mm
Dimensions
:
80 mm x 75 mm x 57 mm
Material
Housing
:
Aluminium
Mounting clip
:
V2A
Rivet
:
V2A
Screw connection
:
M 20 x 1.5, V2A
Weight
BK-390-50
:
137 g
BK-390-63 / BK-380
:
140 g
Switching contact
Switching voltage
:
24...250 V AC/DC
Switching current
:
20 mA...6 A AC/DC
Switching capacity(min.)
:
max. 500 VA, 60 W
Switching capacity(max.)
:
min. 2 VA/W
Our application engineers advise you
personally, comprehensively and professionally!