Endress+Hauser SpectraSensors OXY5500, Руководство по эксплуатации

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BA02195C OXY5500 Optical Oxygen Analyzer
Hauser 3
–
9
The analog outputs are programmable to oxygen and temperature. To allow
external data collection, one input port is available (i.e., external pressure
sensor).
Connections can be made with customer-supplied cables for the current loop
and alarms. Refer to Figure 3–4.
Connecting the analog outputs/analog inputs
1. Disconnect power from the analyzer and open the electronics
enclosure cover. Take care not to disturb the electrical assembly
inside.
2. Run conduit or rated armor cable with the appropriate cable glands
(minimum Exe rated) from the analog outputs/inputs receiving
station to the conduit hub in the right outside corner of the
electronics enclosure.
3. If using conduit, pull the customer-supplied cables for the source
outputs through the conduit into the electronics enclosure.
Hazardous voltage and risk of electric shock . The analog
outputs are not protected against any input voltage. Any voltage
applied to the analog outputs can cause irreversible damage to
the circuit.
Hazardous voltage and risk of electric shock . Turn off and
lock out system power before opening the electronics enclosure
and making any connections.
Hauser Class I Division 2 analyzers use a non-incendive
protection method and Zone 2 uses a non-arcing protection
method; as such, all portions of the local electrical installation
codes apply. The maximum allowed inductance to resistance ratio
(L/R ratio) for the field wiring interface must be less than 25
µH/Ω.
The 4-20 mA outputs are configured as sourcing to provide power
to the loop. If a PLC/HMI is used to provide power to the loop, an
isolator is necessary and must comply with the specifications
provided in Table 3–2. Installation of the isolator must comply
with the non-incendive or non-arcing protection method detailed
in the note above.
Certified Ex e glands and cables, or conduit seal and conduit,
should be used where appropriate in compliance with local
regulations.