Flowserve LRR1-40 TDS Control Unit - Manual (Page 10)

10
Explanatory Notes
– co ntinued –
Technical data
Type approval no.
TÜV.WÜL.02-007
EG BAF- MUC 02 05 103881 003
Input /Output
Interface for CAN bus to ISO 11898 CANopen.
Inputs
CAN bus interface with power supply 18- 36V DC, short circuit protected.
Analog control input for indicating valve position via feedback potentiometer 1000
Ω
,
angle of rotation 320°, supply voltage 5V DC.
Voltage input 18-36V AC (50/60 Hz) or DC for external command:
Control OFF, valve CLOSED, intermittent blowdown OFF. With DC protected against
polarity reversal.
Outputs
Four volt-free relay contacts.
Max. contact rating with a switching voltage of 24V AC /DC, 115 V AC and 230 V AC:
resistive / inductive 4A.
Contact material AgNi 0.15.
Current output 4-20mA as actual value output, max. load 750
Ω
(optional).
Conductivity measuring range with actual value output 4- 20mA
* based at 25°C
Beginning of measuring range End of measuring range
ppm* µS /cm * m A ppm * µS /cm * mA
0.25 0.5 4
10 20 20
50 100 20
100 200 20
250 500 20
500 1000 20
1000 2000 20
3000 6000 20
6000 12000 20
Note
The electrical conductivity is measured in µS/cm. For ppm (parts per million)
use the following conversion:
1µS/cm = 0.5ppm.