Walchem WebAlert WA500, Инструкция по эксплуатации

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5
The enclosure requires the following clearances:
Top:
5 cm (2”)
Left: 10 cm (4”)
Right: 10 cm (4”)
Bottom: 10 cm (4”)
3.3 Installation
The WebAlert receives digital and analog input signals, and sends a digital output signal. The
maximum distances for these cables, using 24 AWG shielded twisted pair cable, is 1200 meters (4000
feet) for the 4-20 mA input signals and 300 meters (1000 feet) for the digital input and output signals. It
is highly recommended that these cables be routed separately from any AC voltage wires, and that the
cable shield drain wire is connected to earth ground at the process monitor end only.
Note: Using the WebAlert process monitor in any manner other than that specified in this manual could
compromise the safety of persons or property.
3.4 Icon Definitions
Symbol Publication Description
IEC 417, No.5019 Protective Conductor Terminal
IEC 417, No. 5007 On (Supply)
IEC 417, No. 5008 Off (Supply)
ISO 3864, No. B.3.6 Caution, risk of electric shock
ISO 3864, No. B.3.1 Caution
3.5 Electrical Installation
The WebAlert series process monitors require the following voltages:
100 –120/200-240 VAC ± 10%, 50/60 Hz, 1.0 amperes maximum.
Your unit is supplied ready to be hardwired. In addition, you will be required to hardwire some or all of
the input/output devices. Please refer to Figures 2 through 5 for wiring diagrams.
Note: Proper grounding of this product is required. Any attempt to bypass the grounding will
compromise the safety of persons and property.
CAUTION! There are live circuits beneath the power supply cover! The process monitor must not be
operated without this cover properly installed!
CAUTION! The electrical installation of the process monitor must be done by trained personnel only
and conform to all applicable National and Local codes!