유니버셜 접촉식 전도도 분석계

전도도 측정을하는 한 가지 방법은 전도성 접촉이라고합니다. 이러한 유형의 측정에서 감지 요소는 프로세스와 접촉하여 센서를 접촉 전극이라고합니다.

전도도는 용액 전극에 담긴 센서 전극 (셀 상수를 구성하는)에 교류 전류를 가하고 결과 전압을 측정하여 측정됩니다. 이 솔루션은 센서 전극 사이의 전기 도체 역할을합니다.
 
Series (2)

모델코드 FLXA21 FLXA202 SC450G
지역 분류
  • General Purpose
  • Class I Div II (without the use of IS Barrier)
  • Class I Div I (with the use of IS Barrier)
  • General Purpose
  • Class I Div II (without the use of IS Barrier)*FM/CSA Pending
  • Class I Div I (with the use of IS Barrier)*FM/CSA Pending
  • General Purpose
  • Class I Div II
외함 재질 Plastic (Polycarbonate) Aluminum alloy die cast with epoxy coating (Standard offering
Aluminum alloy die cast with urethane or high anti corrosion coating (available upon request)
Cast Aluminum with chemically resistance coating; polycarbonate cover with polycarbonate flexible window

하우징

등급

IP66/ NEMA 4A/ CSA 3S IP66 (except Canada), Type 4X (except Canada), Type 3S/4X (Canada) IP66/ NEMA 4A/ CSA 3S

전원

공급

2-wire 24VDC, Loop Powered 2-wire 24VDC, Loop Powered 4-Wire 110-256 VAC, Mains Power
출력 신호 Bi-directional HART digital communication, superimposed on mA (4-20mA) signal. Bi-directional HART digital communication, superimposed on mA (4-20mA) signal. Two isolated outputs of 4 to 20 mA DC with common negative.

The model FLEXA™ two-wire analyzer is used for continuous on-line measurements in industrial installations. It offers an option for single or dual sensor measurement, making it the most flexible 2-wire analyzer available. The model FLEXA™ modular-designed series analyzer.

  • One analyzer can accept any of 4 types of measurements; pH/ORP, Contacting Conductivity (SC), Inductive Conductivity (ISC) and Dissolved Oxygen (DO)
  • Dual sensor measurement on a 2-wire type analyzer pH/ORP and pH/ORP, SC and SC, and DO and DO
  • Modular design: replaceable sensor modules
  • Redundant system on dual sensor measurement
  • Variety of materials of construction: SS or Plastic
  • Intuitive easy touch screen operation on 2-wire type analyzer
  • Unique HMI menu structure in 12 languages
  • Quick setup menu for fast and east measurement operation
  • Online Sensor Wellness checking for predictive maintenance
  • NEMA 4X / IP66 Enclosure
Input Specification

Two or four electrode measurement with square wave excitation, using max. 60 m cable and cell constants from 0.005 to 50.0 cm-1

Input Range Conductivity: 0 to 2000 mS/cm at 25ºC (77°F) 
Temperature: -20 to 140ºC (0 to 280°F)  
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/ x K cm-1 to 1MΩ/ x K cm-1
   
  Accuracy:  ±1% F.S. 
Temperature with Pt1000, Pb36, Ni 100
     Accuracy: ± 0.3ºC
with Pt100, NTC 8k55
      Accuracy: ± 0.4ºC
Step Response ≤7 seconds for 90% (for a 2 decade step)
Cable Length Max 60 meters (200 feet). 10 meters (35 feets0 fixed sensor cable + 50 meters (165 feet) WF10 extension cable
Transmission Signal Bi-directional HART digital communication, superimposed on mA (4-20 mA) signal
Temperature Compensation Automatic or manual, for temperature ranges.
Reference temp. programmable from 0-100°C or 30-210°F (default 25°C) 
Calibration Semi-automatic calibration using pre-configured OIML (KCl) standard tables, with automatic stability check. Manual adjustment to grab sample.
Display Black and white, 213 x 160 pixels LCD with a touch screen
Housing IP66/ NEMA 4A/ CSA 3S
IP66 (except Canada), Type 4X (except Canada), Type 3S/4X (Canada)
Environment Ambient Temperature: -20  to 55°C
Humidity: 10 to 90% RH at 40°C (non-condensing)
 Power Supply Ratings; 17 to 40 V DC 
Input specification Two or four electrode measurement with square wave excitation, using max. 60 m cable and cell constants from 0.005 to 50.0 cm-1
Detection method Frequency, read-pulse position and reference voltage are dynamically optimized.
Input ranges Conductivity: 0.000 μS/cm to 2000 mS/cm
 Minimum: 1 μS/cm (underrange 0.000 μSx C).
 Maximum: 200 mS/cm (overrange 2000 mS x C).
Resistivity: 0.0 Ω x cm to 1000 MΩ x cm
 Minimum: 5 Ω x cm (underrange 0 Ω/C).
 Maximum: 1 MΩ x cm (overrange 1000 MΩ/C).
Temperature:  Pt1000: -20 to 250°C (0 to 500°F)
 Pt100 and Ni100: -20 to 200°C (0 to 400°F)
 NTC 8k55: -10 to 120°C (10 to 250°F)
 Pb36 NTC: -20 to 120°C (0 to 250°F)
Conductivity/Resitivity Accuracy ≤0.5 % of reading
Temperature Accuracy ≤0.3°C (≤ 0.4°C for PT100)
Step Response ≤4 sec for 90 % (for a 2 decade step)
Transmission Signals Two isolated outputs of 4 to 20 mA DC with common negative. Maximum load 600 Ω. Bi-directional HART digital communication, superimposed on mA 1 (4 to 20 mA) signal. Burn up (21.0 mA) or Burn down (3.6 mA) to signal failure accorded with NAMUR NE43.
Temperature compensation Automatic or manual, for temperature ranges.
Reference temp.: programmable from 0 to 100°C or 30 to 210°F (default 25°C).
Compensation algorithm According IEC 60746-3 NaCl tables (default).
Two independent user programmable temperature coefficients, from 0 to 3.5 %/°C (°F) by adjustment or calibration.
Matrix compensation: with conductivity function of concentration and temperature. Choice out of 13 preprogrammed matrixes.
Display Graphical Quarter VGA (320 x 240 pixels) LCD with LED backlight and touchscreen.
Contact Outputs Four SPDT relay contacts with display indicators.
Contact outputs configurable for hysteresis and delay time.
Contact Input Remote range switching to 10 times the programmed range.
Power Supply 85 to 265 V AC ±10 %, 47 to 63 Hz, maximum consumption 10 VA.
9.16 to 30 V DC ±15 %, maximum consumption 10 W.

Application Note
Overview:

To defray energy costs, many industrial plants have their own boilers to generate steam to produce a portion of their energy needs. In addition to generating power, the steam may also be used directly in plant processes or indirectly via heat exchangers or steam jacketed vessels. 

업종:

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