Xylem HYDROVAR HV 4.150 / 4.185 / 4.220 - Manual (Page 39)

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* Terminals X3/5 and 6
can be used as actual value voltage input and also as digital input. Also the voltage signal input on
terminal X3/15 can be used as digital input.
** X3/3 and X3/24 Æ ∑ max. 100mA
Additional power supply
** max. 100 mA
Current signal input (required val. 2)
0-20mA / 4-20mA [Ri=50Ω]
To determine the required value or the offset
Analogue output 2 4-20mA
Analogue output 1 0-10 VDC
Current signal input (required val. 1)
0-20mA / 4-20mA [Ri=50Ω]
To determine the required value or the offset
Voltage signal input (required value 2)
0-10 VDC
*DIG 4
To determine the required value or the offset
Voltage signal input (required value 1) 0-10 VDC
To determine the required value or the offset
Low water
e.g. incoming pressure switch or water level switch required
Configurable digital input 1
DIG 1
e.g. for switching between 2 required values or sensors
External ON/OFF (release)
Actual-value-voltage input sensor 1
0-10 VDC
*DIG 2
Actual-value-voltage input sensor 2 0-10 VDC *DIG 3
Actual-value-current input sensor 2
0-20mA / 4-20mA [Ri=50Ω]
Sensor supply ** max. 100 mA
Actual-value-current input sensor 1 0-20mA / 4-20mA [Ri=50Ω]
Ground