Warning – Yokogawa ADMAG CA User Manual

Page 10

IM 1E8B0-01E

13-3

13. HAZARDOUS DUTY TYPE INSTRUMENT

(3) Operation

CAUTION :

OPEN CIRCUIT BEFORE REMOVING COVER.

OUVRIR LE CIRCUIT AVANT D’ENLEVER LE COUVERCLE.

Take care not to generate mechanical spark when access to the instrument
and peripheral devices in hazardous location.

(4) Maintenance and Repair

The instrument modification or parts replacement by other than authorized
representative of YOKOGAWA Electric Corporation or YOKOGAWA Corpo-
ration of AMERICA is prohibited and will void Canadian Standards
Explosionproof Certification.

HAZARDOUS LOCATIONS

Magnetic Flow Converter

Conduit

Sealing Fitting

50cm Max.

13.3 TIIS(JIS) (Only for sizes 15 to 100 mm(0.5 to 4 in))

Care should be taken to install, wiring, piping to keep safety. This instru-
ment is restricted to maintenance and repair. Please read "INSTALLATION
AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE
EQUIPMENT" in the end of this mannual.

(1) Technical Data

• Certificate:

TC13648

Certificate

Size (mm)

TC13644

TC13645

100

TC13646

Size (mm)

TC13649

TC13647

• Construction: Exde II CT4

: Converter; Flameproof

Flow Tube; Increased Safety

: Ignition and Explosion Class of gas or vapour; II CT4

• Ambient Temperature: –20 to 50˚C
• Fluid Temperature: 120˚C or less
• Maximum power supply voltage: 250V AC/130V DC
• Grounding: JIS Class C(10

Ω or less) or JIS Class A(10Ω or less)

Maintenance and repair of the converter should be done in nonhazardous
location after turning off.

WARNING