Burkert Type 1094 - Manual (Page 9)

1094 - 7
english
3 TECHNICAL DESCRIPTION
3.1 General technical data
Ambient temperature -25 °C ... +85 °C
Dimensions 68 x 76 x 35 mm
Housing Open housing for mounting on mounting rails according
to DIN EN 50 022 / DIN EN 50 035 / DIN EN 50 045
Protection class IP 20
Order No. 060 651
3.3 Inputs
Frequency input of the controller
High level impulse 2.5 V ... 25 V
Low level impulse -1.0 V ... +1.0 V
Input impedance > 10 k
Ω
Max. input current 5 mA
Min. pulse width 400 µs
Rate of measurement 1 measurement/sec
Resolution 1 Hz
Measurement range 0 ... 51 l/min
3.2 Electrical data
Supply voltage
Voltage level 24 V DC ± 10 %
Ripple < 5 %
Current comsumption < 30 mA (without valve current)
< 300 mA (with valve current)
The volumetric flow of the
tanked petrol is measured by
the piston meter, is converted
into a frequency-proportional
pulsed signal by the petrol pump
computer and is sent to the
frequency input of the controller
(Figure 3).
In the controller, this pulsed sig-
nal will be processed to obtain
the actual value of the volumetric
flow of the petrol.
Input 1
VDD
to the
CPU
Figure 3.
Frequency input of
the controller