Original YOKOGAWA FLXA202 Dual Channel Transmitter FLXA202-D-B-D-AB-P1-NN-A-N-LA-N-NN/CD4

n General The model FLXA®202 2-Wire Analyzer, one model of FLEXA® series, offers single or dual sensor measurement. The modular-designed analyzer offers 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. Variety of calculated data from two measuring parameters is selectable for each measurement. On the redundant system built on two measuring parameters of two sensor inputs, main output parameter is automatically switched over to the second sensor output in case of the main sensor’s failure condition. Addition to conventional analog pH/ORP sensors, the analyzer FLXA202 can be connected to Yokogawa’s digital sensor, FU20F / FU24F / SC25F Digital pH/ ORP SENCOM® Sensor. In the FLXA202 Human Machine Interface (HMI), 2-wire type analyzer FLXA202 offers easy touch screen operation and simple menu structure in 12 languages. Menus of display, execution and setting are displayed in a selected language. The analyzer FLXA202 automatically recognizes the installed sensor module and prepares the necessary menus for right configuration, even for dual sensor measurement. For immediate measurement, the FLXA202 offers quick setup functionality. The quick setup screen appears when the analyzer is powered. Only a few setups – date/time, language, basic sensor configurations and output – will start the measurement. The FLXA202 offers the best accuracy in measurement with temperature compensation functionality and calibration functionality. Sensor diagnostics and sensor wellness indication make measurement reliable. Logbook of events and diagnostic data is a useful information source for maintenance. For the wide range of industrial environment, the FLXA202 is designed with the enclosure of aluminum alloy cast with corrosion-resistant coating. n Features • 4 kinds of measurements; pH/ORP, SC, ISC and DO • Dual sensor measurement on 2-wire type analyzer; pH/ORP and pH/ORP, SC and SC, and DO and DO • Calculated data from dual sensor measurement • Redundant system on dual sensor measurement • Connection of FU20F / FU24F / SC25F Digital pH/ ORP SENCOM Sensor • Easy touch screen operation on 2-wire type analyzer • Simple HMI menu structure in 12 languages • Quick setup menu for immediate measurement • Indication of sensor wellness • Enclosure – aluminum alloy cast. GS 12A01A03-01EN ©Copyright Sep. 2015 2nd Edition Feb. 02, 2016 2 All Rights Reserved. Copyright © 2015, Yokogawa Electric Corporation GS 12A01A03-01EN n General Specifications 1. Basic ■ Measurement Object/Sensor Type • pH/Oxidation-reduction Potential (pH/ORP) (analog sensor) • Conductivity (SC) • Inductive Conductivity (ISC) • Dissolved Oxygen (DO) • pH/Oxidation-reduction Potential (pH/ORP) (digital sensor) Note: The available measurement object depends on a sensor module installed on the analyzer. ■ Analyzer Structure Module structure ● Composition of Analyzer One (1) Housing assembly One (1) or two (2) Sensor modules ● Combination of Sensor Module when two modules are installed Combinations of two same sensor modules are available; pH/ORP and pH/ORP (analog sensor) SC and SC DO and DO 2. Measurement 2-1. pH/Oxidation-reduction Potential (pH/ORP) with analog sensors ■ Input Specification Dual high impedance input (≥1012 Ω) ■ Input Range pH: -2 to 16 pH (with option /K: 0 to 14 pH) ORP: -1500 to 1500 mV rH: 0 to 100 rH Temperature: Pt1000: -30 to 140 ºC Pt100: -30 to 140 ºC 6.8k: -30 to 140 ºC PTC10k: -30 to 140 ºC NTC 8k55: -10 to 120 ºC 3k Balco: -30 to 140 ºC PTC500: -30 to 140 ºC ■ Output Range pH: min. span 1 pH max. span 20 pH ORP: min. span 100 mV max. span 3000 mV rH: min. span 2 rH max. span 100 rH Temperature: min. span 25 ºC max. span 170 ºC ■ Performance (Accuracy) (The specifications are expressed with simulated inputs.) pH Linearity: ±0.01 pH Repeatability: ±0.01 pH Accuracy: ±0.01 pH ORP Linearity: ±1 mV Repeatability: ±1 mV Accuracy: ±1 mV Temperature with Pt1000, 6.8k, PTC10k, NTC 8k55, 3k Balco, PTC500 Linearity: ±0.3 ºC Repeatability: ±0.1 ºC Accuracy: ±0.3 ºC with Pt100 Linearity: ±0.4 ºC Repeatability: ±0.1 ºC Accuracy: ±0.4 ºC 2-2. Conductivity (SC) ■ Input Specification Two or four electrodes measurement with square wave excitation, using max 60m (200ft) cable (WU40/ WF10) and cell constants from 0.005 to 50.0 cm-1 ■ Input Range Conductivity: min.: 0 µS/cm max.: 200 mS x (Cell constant) (over range 2000 mS/cm) Resistivity: min.: 0.005 kΩ / (Cell constant) max.: 1000 MΩ x cm Temperature: Pt1000: -20 to 250 ºC Pt100: -20 to 200 ºC Ni100: -20 to 200 ºC NTC 8k55: -10 to 120 ºC Pb36(JIS NTC 6k): -20 to 120 ºC ■ Output Range Conductivity: min. 0.01 µS/cm max. 2000 mS/cm (max 90% zero suppression) Resistivity: min. 0.001 kΩ x cm max. 1000 MΩ x cm (max 90% zero suppression) Temperature: min. span 25 ºC max. span 270 ºC ■ Performance (Accuracy) (The specifications are expressed with simulated inputs.) Conductivity 2 µS x K cm-1 to 200 mS x K cm-1 Accuracy: ±0.5%F.S. 1 µS x K cm-1 to 2 µS x K cm-1 Accuracy: ±1%F.S. Resistivity 0.005kΩ / K cm-1 to 0.5MΩ /K cm-1 Accuracy: ±0.5%F.S. 0.5MΩ / K cm-1 to 1MΩ /K cm-1 Accuracy: ±1%F.S. Temperature with Pt1000, Pb36, Ni100 Accuracy: ±0.3 ºC with Pt100, NTC 8k55 Accuracy: ±0.4 ºC Temperature compensation NaCl table: ±1 % Matrix: ±3 % Step response: 90 % (< 2 decades) in 7 seconds Note: "F.S." means maximum setting value of analyzer output. "K" means cell constant.

Mengchuan Instrument Co., Ltd. is located in Liushi Town, Yueqing City, Wenzhou, Zhejiang Province, surrounded by the beautiful world natural and cultural heritage - Yandang Mountain! It is mainly engaged in 2000 differential pressure gauge, red oil differential pressure gauge, pressure differential pressure transmitter, liquid level transmitter, diaphragm pressure gauge, shockproof pressure gauge, electric contact pressure gauge, stainless steel pressure gauge, precision pressure gauge, micro pressure capsule gauge, floating ball liquid level gauge, floating ball switch, liquid level controller, intelligent energy gauge, light column gauge and other products. The products are widely used in machinery and civil industries such as plastics, food, printing, chemical industry, petroleum, medical treatment, oven, light textile, printing and dyeing, air conditioning, family and so on.

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