Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 - Manual (Page 54)

IM 11M13A01-02E 3-3
3. Installation
• Take care not to generate mechanical sparking when accessing to the
detector and peripheral devices in hazardous location
Note 4: Maintenance and Repair
• The detector modification or parts replacement by other than authorized
representative of Yokogawa Electric Corporation is prohibited and will void
CENELEC ATEX (KEMA) Flameproof Certification.
Note 5: Cable Entry
• The type of cable entry is marked near the cable entry port according to
following codes.
Type of Cable entry : Code
M20 x 1.5
: M
1/2NPT : A
• The blanking elements shall be of certified flameproof type, suitable for the
conditions of use and correctly installed.
Certified cable glands that meet or exceed the requirements for EEx dIIB +
H
2
IP66, provide at least 6 threads engaged when installed, and resist heat so
that they can be used in the operating environment, should be used.
3.1.3 FM Explosionproof Type
ZR22S-B Detector for use in hazardous locations:
Note 1: Explosionproof for Class I, Division 1, Groups B, C and D
Dust-ignitionproof for Class II/III, Division 1, Groups E, F and G
Enclosure Rating:
NEMA 4X
Temperature class: T2
Note 2: Wiring
• All wiring shall comply with National Electrical Code ANSI/NEPA 70 and
Local Electrical Code.
• In hazardous location, wiring shall be in conduits as shown in the figure.
WARNING: SEAL ALL CONDUITS WITHIN 18 INCHES OF THE
ENCLOSURE.
F3.02E.EPS
Non-hazardous Location Equipment
ZR402G or AV550G Hazardous Locations Division 1
18 inches (475mm) MAX.
Conduit Sealing Fitting
ZR22S Detector
Figure 3.2
Note 3: Operation
• Keep the "WARNING" label to the Detector.WARNING: OPEN CIRCUIT
BEFORE REMOVING COVER. USE AT LEAST 150
Њ C HEAT
RESISTANT CABLES.
• Take care not to generate mechanical sparking when accessing to the
detector and peripheral devices in hazardous location
Note 4: Maintenance and Repair
• The detector modification or parts replacement by other than authorized
representative of Yokogawa Electric Corporation is prohibited and will void
Factory Mutual Explosionproof Approval.