<Appendix 3 Control Drawings>
App.3-8
IM 12A01A02-71E 3rd Edition : Mar. 23, 2018-00
Model: FLXA21 / FLXA202 Date: May 29, 2017
Rev. Doc. No.: ICS032-A72 P.3
Yokogawa Electric Corporation
Notes:
1. Installation must be in accordance with the Canadian Electric Code Part I (C22.1),
ANSI/ISA-RP12.06.01 and relevant local codes.
2. FISCO installation must be in accordance with CAN/CSA-C22.2 No. 60079-25.
3. The associated apparatus must be a FISCO power supply or a linear source meeting
the following conditions.
Uo (or Voc) ≤ Ui
Io (or Isc) ≤ Ii
Po ≤ Pi
Co (or Ca) ≥ Ci + Ccable
Lo (or La) ≥ Li + Lcable
4. Control equipment connected to the associated apparatus must not use or generate a
voltage which exceeds Um of the associated apparatus.
5. The control drawing of the associated apparatus must be followed when installing the
equipment.
6. When installed in Zone 0 or 1, or Division 1, Sensor 1 may be a simple apparatus or an
intrinsically safe apparatus meeting the conditions below.
When installed in Zone 2 or Division 2, Sensor 1 may be a simple apparatus or a
non-incendive field wiring apparatus meeting the conditions below, or alternatively,
it may be equipment suitable for Zone 2 or Division 2 respectively, if a suitable wiring
method other than non-incendive field wiring is employed.
Ui (or Vmax) ≥ Uo
Ii (or Imax) ≥ Io
Pi ≥ Po
Ci ≤ Co – Ccable
Li ≤ Lo – Lcable
7. The control equipment must be a FISCO power supply, FNICO power supply or an
associated non-incendive field wiring apparatus meeting the conditions below.
Alternatively, it may be general-purpose equipment, if a suitable wiring method other
than non-incendive field wiring is employed.
Uo (or Voc) ≤ Ui
Co (or Ca) ≥ Ci + Ccable
Lo (or La) ≥ Li + Lcable
8. WARNING – POTENTIAL ELECTROSTATIC CHARGING HAZARD
AVERTISSEMENT – DANGER POTENTIEL DE CHARGES ÉLECTROSTATIQUES
9. WARNING – SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY
AVERTISSEMENT – LA SUBSTITUTION DE COMPOSANTS PEUT COMPROMETTRE LA
SÉCURITÉ INTRINSÉQUE.
10. WARNING – SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR
ZONE 2 / DIVISION 2.
AVERTISSEMENT –LA SUBSTITUTION DE COMPOSANTS PEUT RENDRE CE MATÉRIEL
INACCEPTABLE POUR LES EMPLACEMENTS DE ZONE 2 / DIVISION 2.
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