YOKOGAWA FLEXA SENCOM FLXA202 - App. 3.2 FM FLXA21: Intrinsic Safety, Nonincendive

<Appendix 3 Control Drawings>
App.3-3
IM 12A01A02-71E 3rd Edition : Mar. 23, 2018-00
App. 3.2 FM
FLXA21: Intrinsic safety, Nonincendive
Model: FLEXA Series Date: April 17, 2015
Rev.1: May 29, 2017 Doc. No.: IFM039-A72 P.1
Yokogawa Electric Corporation
Control drawing (FOUNDATION Fieldbus / PROFIBUS PA type)
Installation for Division 1 / Zone 0, 1
Applicable models: FLXA21-D-x-x-CD-xx-xx-F-..., FLXA21-D-x-x-CD-xx-xx-P-…
Unclassified Location Hazardous (Classified) Location
Class I, Division 1, Groups A, B, C, D, or
Class I, Zone 0, 1, Group IIC
Temperature Class: T4
Measuring Module 1 (Note 8):
Type of Measuring Module
pH, SC, DO ISC SENCOM
Uo 11.76 V 11.76 V 5.36 V
Io 116.5 mA 60.6 mA 106.16 mA
Po 0.3424 W 0.178 W 0.1423 W
Co 100 nF 100 nF 31 μF
Lo 1.7 mH 8 mH 0.45 mH
Specific condition of use
- Electrostatic charges on the non-metallic or coated parts of the two wire analyzer shall be
avoided.
FLXA21 Analyzer
Supply +, Supply
–
(Note 5):
FISCO field device
or
Ui: 24 V
Ii: 250 mA
Pi: 1.2 W
Ci: 2.72nF
Li: 0 mH
Supply +
+
A
ssociated Apparatus
(Note 4, 5)
–
Supply
–
Housing Assembly
Measuring Module 1
Sensor 1
(Note 8)
T
T
Terminators
Other
Field Devices