YOKOGAWA FLXA202 Bedienungsanleitung Seite 29

Model: FLEXA Series
Notes:
1. This drawing replaces the former control drawing IKE039-A12.
2. No revision to this drawing without prior approval of FM.
3. Installation must be in accordance with the National Electric Code (NFPA 70),
ANSI/ISA-RP12.06.01 and relevant local codes.
4. The associated apparatus must be an FM-approved linear source meeting the following
conditions.
5. Control equipment connected to the associated apparatus must not use or generate a voltage
which exceeds Um of the associated apparatus.
6. The control drawing of the associated apparatus must be followed when installing the
equipment.
7. Measuring Module 2 is not always installed.
8. ISC module, SENCOM module and SSA module are not installed as "Measuring Module 2".
9. When installed in Division 1, Zone 0 or Zone 1, Sensor 1 and Sensor 2 may be simple apparatus
or intrinsically safe apparatus meeting the conditions below.
When installed in Division 2 or Zone 2, Sensor 1 and Sensor 2 may be simple apparatus or
nonincendive field wiring apparatus meeting the conditions below, or alternatively, they may be
equipment suitable for Division 2 or Zone 2 respectively, if a suitable wiring method other than
nonincendive field wiring is employed.
10. The control equipment must be an FM-approved associated nonincendive field wiring apparatus
meeting the conditions below. Alternatively, it may be general-purpose equipment, if a suitable
wiring method other than nonincendive filed wiring is employed.
11. WARNING – POTENTIAL ELECTROSTATIC CHARGING HAZARD – WHEN THE
EQUIPMENT IS USED IN HAZARDOUS LOCATIONS, AVOID ANY ACTION WHICH
GENERATE ELECTROSTATIC DISCHARGE SUCH AS RUBBING WITH A DRY CLOTH.
12. WARNING – IN THE CASE WHERE THE ENCLOSURE OF THE ANALYZER IS MADE OF
ALUMINUM, IF IT IS MOUNTED IN ZONE 0, IT MUST BE INSTALLED SUCH THAT, EVEN
IN THE EVENT OF RARE INCIDENTS, IGNITION SOURCES DUE TO IMPACT AND
FRICTION SPARKS ARE EXCLUDED
13. WARNING – SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY AND
SUITABITLITY FOR DIVISION 2 / ZONE 2.
Rev.1: Dec. 26, 2019
Uo (or Voc) Ui
Io (or Isc) Ii
Po Pi
Co (or Ca) Ci + Ccable
Lo (or La) Li + Lcable
Ui (or Vmax) Uo
Ii (or Imax) Io
Pi Po
Ci Co – Ccable
Li Lo – Lcable
Uo (or Voc) Ui
Co (or Ca) Ci + Ccable
Lo (or La) Li + Lcable
Yokogawa Electric Corporation
Date: May 29, 2017
Doc. No.: IFM039-A71 P.3
IM 12A01A02-20D-E
28
9. Ausgabe: 20. Juni 2022-00