Protective Chassis And Ground Connections; Protective Ground Cable - Endress+Hauser SpectraSensors J22 TDLAS Operating Instructions Manual

4900002277
Protective Chassis
and Ground Connec-
tions
14
1 Cover borehole for the securing screw
2 Securing screw to lock the cover
Before connecting any electrical signal or power, connect the protective and
chassis grounds (→  34).
• Protective and chassis grounds must be of equal or greater size than any
other current-carrying conductors, including the heater located in the sample
conditioning system
• Protective and chassis grounds to remain connected until all other wiring is
removed
• Protective grounding wire current carrying capacity must be the same as the
main supply, at a minimum
• Earth bonding/chassis ground shall be at least 10 AWG (6 mm

Protective ground cable

2
• Analyzer: 2.1 mm
2
• Enclosure: 6 mm (10 AWG)
The grounding impedance must be less than 1Ω.
1
1
 1: Ground connections
1 Protective ground
(14 AWG)
1
J22 TDLAS Gas Analyzer
2
)
1
1
SpectraSensors, Inc.
A0029800