1.General Introduction
Yokogawa FLXA21 pH analyzer is a 2 wire modular-designed converter which accepts single or dual sensor measurement, which is applicable for 4
kinds of measurements : pH/ORP (oxidation-reduction potential), contacting conductivity (SC), inductive conductivity (ISC) or dissolved oxygen (DO) with the respective sensor module. For dual sensor measurement, the combination of two same type sensor inputs: pH/ORP and pH/ORP (analog sensor only), SC and SC, and DO and DO are available with two sensor modules. Dual sensor measurement offers additional functionalities; calculated data function and redundant system. Addition to conventional analog pH/ORP sensors, the analyzer FLXA202 can be connected to Yokogawa's digital sensor, FU20F Digital pH/ORP SENCOMTM Sensor. FLXA21 automatically recognizes the installed sensor module and prepares the necessary menus for right configuration, even for dual sensor measurement.
2.Dual Sensor Configuration
3.Model Selection
Main Code | Suffix Codes | Description | |||||||||||
FLXA21 | 2-Wire Analyzer | ||||||||||||
Power Supply | -D | Always -D | |||||||||||
Housing | -P | Plastic | |||||||||||
Display | -D | Anti-glare LCD | |||||||||||
Type | -AB | General purpose for CE, RCM | |||||||||||
-AD | General purpose for CSA | ||||||||||||
-AG | General purpose for KC | ||||||||||||
-AQ | General purpose for EAC with PA | ||||||||||||
-AR | General purpose for EAC | ||||||||||||
-CB | IS for ATEX, IEC Ex | ||||||||||||
-CD | IS for FM, CSA | ||||||||||||
-CH | IS for NEPSI | ||||||||||||
-EG | IS for KOSHA | ||||||||||||
-EQ | IS for EACEx with PA | ||||||||||||
-ER | IS for EACEx | ||||||||||||
-DD | NI for FM, CSA | ||||||||||||
1st input | -P1 | pH/ORP | |||||||||||
-C1 | Conductivity (SC) | ||||||||||||
-C5 | Inductive conductivity (ISC) | ||||||||||||
-D1 | Dissolved oxygen (DO) | ||||||||||||
-S1 | pH/ORP (SENCOM sensor) | ||||||||||||
2nd input | -NN | Without input | |||||||||||
-P1 | pH/ORP | ||||||||||||
-C1 | Conductivity (SC) | ||||||||||||
-D1 | Dissolved oxygen (DO) | ||||||||||||
Output | -A | 4-20mA + HART | |||||||||||
— | -N | Always -N | |||||||||||
Language set | -LA | English and 11 languages | |||||||||||
Country | -N | Global except Japan | |||||||||||
-J | Japan | ||||||||||||
— | -NN | Always -NN | |||||||||||
Options | Mounting hardware | /UM | Universal mounting kit | ||||||||||
/U | Pipe and wall mounting hardware | ||||||||||||
/PM | Panel mounting hardware | ||||||||||||
Hood | /H6 | Hood, stainless steel | |||||||||||
/H7 | Hood, stainless steel + urethane coating | ||||||||||||
/H8 | Hood, stainless steel + epoxy coating | ||||||||||||
Tag plate Conduit adapter | /SCT | Stainless steel tag plate | |||||||||||
/CB4 | Conduit adapter (G1/2 x 4pcs) | ||||||||||||
/CD4 | Conduit adapter (1/2NPT x 4pcs) | ||||||||||||
/CF4 | Conduit adapter (M20 x 1.5 x 4pcs) | ||||||||||||
4.External Dimensions
