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  • Percent Concentration Analyzer ISC450G

Percent Concentration Analyzer ISC450G

2016-05-27 13:07:30

Description:

The ISC450 is designed to measure Specific Conductivity by using the Inductive Conductivity method. This method is especially suitable for high conductivity measurements. The analyzer works with a sensor with two toroidal transformers built in. An AC current induces a voltage in the process sample that results in a current in the sample. The strength of this current is proportional to the conductivity of the sample following Ohm's law.……

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Description

Percent Concentration Analyzer ISC450G

The ISC450 is designed to measure Specific Conductivity by using the Inductive Conductivity method. This method is especially suitable for high conductivity measurements. The analyzer works with a sensor with two toroidal transformers built in. An AC current induces a voltage in the process sample that results in a current in the sample. The strength of this current is proportional to the conductivity of the sample following Ohm's law.

 

The EXAxt 450 series builds on the superior functionality of the industry leading Yokogawa EXA series by enhancing the EXA's proven operation and application flexibility. The ISC450 features a unique accuracy and rangeability, which is only possible through superior sensor design and electronic data processing using a self tuning preamplifier with more than 10 sub ranges with automatic zero adjustment at every range change. Accurate concentration measurement requires accurate temperature compensation and the ISC450 offers three compensation methods from default NaCl compensation to user defined MATRIX compensation for electrolytes where the coefficient varies with Temperature and with Concentration.

The EXAxt is highly intelligent and continuously checks the software, hardware and sensor system for irregularities. Not only will these irregularities be signaled through the main display as well as a signal output according Namur NE43, the transmitter will provide adequate instructions how to solve the errors.

  • uniquely simple touch screen menu structure

  • Unique touch screen operation with menu structure in 7 languages (English, French, German, Italian, Spanish, Portuguese, or Swedish).

  • Enhanced diagnostics, process trending graphics andon-screen logbook for data storage

  • Two mA-outputs and four SPDT relay contacts with display indicators

  • Hart® Communications

  • FM Class 1, Div.2, Group ABCD, T6 for Ta-20 to 55°C

  • IP66/NEMA4X 1/2 DIN enclosure for Field Mounting and Panel Mounting

  • Selectable predefined Temperature Compensation Matrices

  • Percent Concentration Display

Input Specification

Compatible with ISC40 inductive conductivity sensor with integrated temperautre sensors: NTC30k or Pt1000.

Input RangeConductivity: 0 to 1999 mS/cm at 25ºC (77°F)
     Minimum: 1 µS/cm (at process temperature)  
     Maximum: 2 S/cm (at process temperature)
Temperature: -20 to 140ºC (0 to 280°F)  
Accuracy Conductivity≤0.5% reading ± 1.0 µS/cm
Accuracy Temperature≤0.3ºC (0.6ºF)
Step Response≤4 seconds for 90% (for a 2 decade step)
Cable LengthMax 60 meters (200 feet). 10 meters (35 feets0 fixed sensor cable + 50 meters (165 feets) WF10 extension cable
Transmission SignalTwo isolated output of 4 to 20 mA DC with common negative. Maximum load 600 Ω. Bi-directional HART digital communicaiton, superimposed on mA1 (4 to 20 mA) signal. Burn up (21.0 mA) or burn down (3.6 mA) to signal failure accorded to NAMUR NE43.
Contact OutputFour SPDT relay contact with display indicators
Contact Inputremote range switching to 10 times the programmed range
Temperature CompensationAutomatic 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, wiht automatic stabilit check. Manual adjustment to grab sample.
Display Graphical Quarter VGA (320 x 240 pixels) LCD with LED backlight and touch screen
Housing Cast Aluminim housing with chemically resistance coating; Polycarbonate cover with Polycarbonate flexible window.
Protection IP66/ NEMA4X/ CSA Type 3S 
EnvironmentAmbient Temperature: -20  to 55°C
Humidity: 10 to 90% RH at 40°C (non-condensig)
 Power SupplyISC450G-A:
     Ratings: 100 to 240 V AC
     Acceptable Range: 90 to 260 V AC
     Ratings: 50/60 HZ
     Acceptable Range: 50 HZ ± 5%; 60 HZ ± 5%
     Power Consumption: 15 VA

ISC450G-D:     
     Ratings: 12  to 24 V DC
     Acceptable Range: 10.8 to 26.4 V DC
     Power Consumption: 10 W