wtw MIQ/CHV, Руководство по эксплуатации

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IQ S
ENSOR
N
ET
MIQ/CHV Overview
1 - 1
1 Overview
General characteristics The MIQ/CHV valve module provides a switchable compressed air
valve for the operation of sensor cleaning heads. The valve is con-
trolled via an external switch. The switch can consist of one of the fol-
lowing:
l
the relay of an IQ S
ENSOR
N
ET
MIQ/CR3 combined output module
l
the relay of a measurement converter with the R option
l
any other switch (relay or sensor)
Warning
The valve circuit must not supply any unauthorized voltages or cur-
rents. The circuit must comply with all the standards of a circuit with lim-
itations ( Limited Circuit or Limited Power) as well as for safety extra low
voltage ( SELV) at all times. For more details, see chapter 6 T
ECHNICAL
DATA
.
The valve module is connected with the external switch via a control
line.
The following application example shows a cleaning system made up
of a CH cleaning head and an MIQ/CHV valve module with a long-
range MIQ/PS power supply: