1.General Introduction
Yokogawa FLXA402 pH analyzer is a 4 wire modular-designed converter which accepts 5 sensors measurement, accept both traditional analog and SENCOM 4.0 digital Smart sensors. It offers a wide range of measurement as: pH/ORP, Contacting Conductivity (SC), Inductive Conductivity (ISC), Dissolved Oxygen (DO), and Optical Dissolved Oxygen Sensors with self-diagnostic capabilities. A color Human Machine Interface (HMI) offers easy touch screen operation and simple instinctive menu structure in 9languages. Menus of display, execution and setting are displayed in a selected language. Start up and commission time is minimal with the quick startup menu for immediate measurement. Variety of communications are available, mA/HART, Modbus TCP, Modbus RTU/RS485. And FieldMate working on tablet PC can be used as a local display via Bluetooth or RS485.
2.Configurable Sensors
Sensors | PH/ORP | SC | ISC | DO |
Analog sensors | FU20 /FU24 | SC4A | ISC40G | DO30G |
SM21/SR20 | SC42 | ISC40S | ||
PH20 | SX42 | ISC40GJ | ||
SC25V/SC21/SC29C | SC4AJ | ISC40SJ | ||
PH8EXP | SC8SG | |||
PH4X/ PH4XT | SC210G | |||
OR8EXG | ||||
OR4X | ||||
Optical DO sensor | DO70G | |||
Digital Sensor | FU20-VS/ PH21/ FU24 /PH8EXP |
3.Model Selection
Main Code | Suffix code | Description | |||||||||||
FLXA402 | 4-Wire Converter | ||||||||||||
Power Supply | -A | AC version | |||||||||||
-D | DC version | ||||||||||||
Housing | -B | Aluminum alloy cast + urethane coating | |||||||||||
-D | Aluminum alloy cast + high anti-corrosion coating | ||||||||||||
Type | -AB | General purpose for CE, RCM, Dubai of UAE standard | |||||||||||
-AD | General purpose for CSA | ||||||||||||
-AG | General purpose for KC | ||||||||||||
-AJ | General purpose | ||||||||||||
1st input | -P1 | pH/ORP (PH) | |||||||||||
-C1 | Conductivity (SC) | ||||||||||||
-C5 | Inductive conductivity (ISC) | ||||||||||||
-D1 | Dissolved oxygen (DO) | ||||||||||||
-D5 | Digital sensor | ||||||||||||
-S5 | SENCOM SA | ||||||||||||
2nd input | -NN | Without input | |||||||||||
-P1 | pH/ORP (PH) | ||||||||||||
-C1 | Conductivity (SC) | ||||||||||||
-C5 | Inductive conductivity (ISC) | ||||||||||||
-D1 | Dissolved oxygen (DO) | ||||||||||||
-S1 | SENCOM SA | ||||||||||||
mA Output/Input | -A2 | 2 x 4-20mA Output + 1 x Contact Input (mA1 output: with HART) | |||||||||||
-A4 | 4 x 4-20mA Output + 2 x Contact Input + 1 x 4-20 mA Input (mA1 output: with HART) | ||||||||||||
Relay | -NR | Without Relay | |||||||||||
-WR | Relay | ||||||||||||
Bluetooth | -N | Without Bluetooth | |||||||||||
-B | Bluetooth | ||||||||||||
Digital Communication | -N | Without Digital communication | |||||||||||
-E | Modbus TCP/IP | ||||||||||||
-R | Modbus RTU (RS-485) | ||||||||||||
Country | -N | Global except Japan | |||||||||||
-J | Japan | ||||||||||||
— | -NN | Always -NN | |||||||||||
Option | 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 | ||||||||||||
Tag plate | /SCT | Stainless steel tag plate | |||||||||||
Conduit adapter | /CB4 | G1/2 x 4 pcs | |||||||||||
/CD4 | 1/2NPT x 4 pcs | ||||||||||||
/CF4 | M20 x 1.5 x 4pcs | ||||||||||||
/CB6 | G1/2 x 3pcs + G 1/2 for Ethernet x 1pcs | ||||||||||||
/CD6 | 1/2NPT x 3pcs + 1/2 NPT for Ethernet x 1pcs | ||||||||||||
/CF6 | M20 x 1.5 x 3pcs + M20 for Ethernet x 1pcs | ||||||||||||
4.Typical System Configuration
5.External Dimensions
