Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 - Manual (Page 23)

<1. INTRODUCTION AND GENERAL DESCRIPTION>
1-11
IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
pH/ORP Sensor module, SC Sensor module and DO Sensor module
Input parameters Ui, Vmax = 13.92 V
Ii, Imax = 50 mA
Pi, Pmax = 0.374 W
Ci = 40 nF
Li = 2.9 mH
Output parameters Sensor input circuit(pH: terminals 11 through 19,
SC: terminals 11 though 16, DO: terminals 11 thourgh 18)
Uo Vt, Voc = 11.76 V
Io, It, Isc = 116.5 mA
Po = 0.342 W
Co, Ca = 100 nF
Lo, La = 1.7mH
ISC Sensor module
Input parameters Ui, Vmax = 13.92 V
Ii, Imax = 50 mA
Pi, Pmax = 0.374 W
Ci = 40 nF
Li = 7.7 mH
Output parameters Sensor input circuit (terminals 11 through 17)
Uo Vt, Voc = 11.76 V
Io, It, Isc = 60.6 mA
Po = 0.178 W
Co, Ca = 100 nF
Lo, La = 8 mH
Model code as per certification unit
Housing assembly
Model code Enclosure type (Housing) Display Explosion proof type
K9698NA Plastic (Polycarbonate) (-P) Without display (-N) Intrinsically safe type
K9698PA With LCD display (-D)
K9698QA Stainless steel with
urethane coating (-U)
Without display (-N)
K9698RA With LCD display (-D)
K9698QB Stainless steel with epoxy
coating (-E)
Without display (-N)
K9698RB With LCD display (-D)
K9698QC Stainless steel (-S) Without display (-N)
K9698RC With LCD display (-D)
Sensor module
Model code Sensor module type Explosion proof type
K9698EA pH/ORP module Intrinsically safe type
K9698FA SC module
K9698GA ISC module
K9698HA DO module
Control Drawing (ATEX and IECEx types)
Measuring module 1
Note: The measuring module on this drawing means
the sensor module on this General Specifications.
Measuring module 2
Sensor 1
Sensor 2
(*)
(Note 1)
Safety Barrier Housing Assembly
Supply -
Supply +
→ Non Hazardous Location Hazardous Location ←
-
+
Note: The measuring module on this drawing means the sensor module on this General Specifications.
1
PH
SC
ISC
DO
SENCOM