Shimadzu-ON-LINE TOC (Model:VCSH)

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Combustion catalytic oxidation / NDIR method

The functionality for continuous automatic measurement has bee added to the ability of the combustion catalytic oxidation/NDIR TOC-V Series to perform high-performance, high sensitivity measurement of organic substances.
The On-line TOC-VCSH can be used for Continuous automatic high-sensitivity monitoring of water samples such as pure water and tap water.

Combines Combustion Catalytic Oxidation at 680°C and NDIR Method

Combustion catalytic oxidation at 680°C oxidizes even persistent or insoluble organic compounds. This method accurately measures any type of organic substance not affected by interfering substances or the sample properties such as pH or conductivity.

Easy Maintenance

Combustion catalytic oxidation at 680°C eliminates the need for oxidizing reagents, saving the tasks of procuring and preparing reagents. No special draining operations are needed.

Support Software for Pharmaceutical Water Management Applications

The On-line TOC-VCSH incorporates software for automatically performing tests specified by Japanese Pharmacopoeia (resolution test) and USP (system suitability test). Combining the On-line TOC-VCSH with an OCT-1 (optional) enables fully automatic testing; setting the reagent is all that is required.

Wide Variety of TOC Measurement Methods

NPOC, IC, TC and TOC (TC-IC) measurements are possible with the ON-LINE TOC-VCSH. TN measurement is also possible by adding an optional product. TOC and TN can be measured simultaneously.

Main Applications

  • Management of pharmaceutical water
  • Management of ultrapure and recycled water for the semiconductor industry
  • Management of mains water
  • l Impurity contamination management for all types of water used at plants (cooling water, recycled water, and boiler water)

Measured items NPOC (TOC by IC subtraction using acid sparging), TC, IC, TOC (TC-IC), TN (optional TNM-1 required)
Measurement method 680ºC combustion catalytic oxidation/NDIR method
720ºC combustion catalytic oxidation/ chemiluminescence method
(when TNM-1 is connected)
Measurement range TC: 0-500 ìg/L to 0-25,000 mg/L variable
IC: 0-500 ìg/L to 0-30,000 mg/L variable
Measurement cycle Approx. 5 to 999 minutes (for NPOC measurement)
Number of measurement channels 1 channel
Reproducibility CV 1.5% max.
Linearity ±2% F.S. max.
Zero stability ±2% F.S. max. per day
Span stability ±2% F.S. max. per day (ambient temperature fluctuations within 5ºC)
Calibration cycle Variable in the range 1 to 999 hours
Sample injection method Automatic injection using syringe pump/slider
Sample injection volume Variable in the range 10 to 2,000 uL
Sample dilution function Diluted in syringe; dilution factor: 2 to 50
IC pretreatment Automatic acidification and sparging
Carrier gas High-purity air or oxygen (1 ppm max. of CO, CO2, or HC)
High-purity nitrogen (1 ppm max. of CO, CO2, or HC) (when using optional nitrogen gas carrier kit)
Supply pressure: Approx. 600 kPa
Flow rate: 150 mL/min (230 mL/min with sparging)
Measurement value output Analog output: Select from 4 to 20mA, 0 to 16mA (insulation, load resistance: 750Ù max.), and 0 to 1VDC RS-232C: Baud rate; 9,600 bps, Data length; 8 bits, Parity; none, Stop bits; 1
Alarm output Measurement value upper limit and upper upper limit alarms, system error alarm: No-voltage contact output (maximum: 5VA, 0.1A, 50V)
Control input Remote stopping and starting of sample measurement and calibration
Sample conditions Flow rate: Approx. 0.1 to 1 L/min
Sample volume: 5 to 7 mL per measurement
Temperature: 0 to 90ºC
Ambient temperature 5 to 35ºC
Power supply AC 100 – 127V ±10% MAX 800VA 50/60 Hz
AC 200 – 240V ±10% MAX 1200VA 50/60 Hz
Dimensions Approx. 440 (W) x 560 (D) x 460 (H) mm (excluding protrusions)
Weight Approx. 40 kg
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