TOC-4200 - Features
On-line TOC Analyzer
Support for New Means of Communications, Enhanced Data Handling
Compatible with digital bus standard
- Instrument operation, readout of measured values, and checking for alarms can be performed via the RS-485 or RS-232C (option). This function is convenient when managing multiple instruments.
Control sample measurements
- Periodic measurements of pre-selected control samples. This can be used to monitor the condition of the instrument. Automatic calibration can be performed when a certain reference value is exceeded.
Web-based monitoring (option)
- Installing an optional board allows connection of the instrument to a network. The optional board offers web-server functions, allowing real-time browsing of measured values and alarms with a Web browser.
Support for a Wide Range of Samples
From pure water to heavily polluted water
- Measurement ranges from 5 mgC/L full-scale to 20,000 mgC/L full-scale.
An option can be attached to support high-sensitivity measurements to 1 mgC/L full-scale.
- The pretreatment unit for heavily polluted water incorporates a unique washing function and special operation sequences to control blockages and biological contamination. This reduces the maintenance frequency.
Automatic dilution function
- TOC-4200 offers sample automatic dilution functions (×2 to ×50) as standard.
- When measuring an acid, strong alkaline, or inorganic salt sample that may damage the instrument or consumables, the effect can be alleviated by diluting the sample.
- A single high standard can be auto-diluted to make a multi-point calibration curve for laboratory time saving effort.
High-salt sample combustion tube kit
- When measuring samples with high levels of inorganic salt, such as seawater, the inorganic salt can accumulate inside the combustion tube and cause physical blockage or deterioration of the combustion tube. This kit extends the tube-replacement period approximately ten times as compared to a normal combustion tube.
Permits TOC measurements that match the sample's characteristics
- TOC measurement by acidify and sparge TOC also know as non-purgeable organic carbon (NPOC)
- TOC determination by difference between total carbon (TC) and inorganic carbon (IC)
TOC = TC - IC (requires option)
- TOC determination by addition method of NPOC and purgeable organic carbon (POC)
TOC = NPOC + POC (requires option)
Range of pretreatment units to match a sample's characteristics
- Pretreatment units are available for applications from pure water to heavily polluted water.
- Reduces instrument maintenance frequency.
- Switch between measurement points in up to six flow lines. More economical since the need for multiple instruments is eliminated
Reliable sample injection system
- A single unit performs sample intake, discharge, dilution and injection.
- Automated sample acidification and sparging.
- Highly reliable ceramic 8-port valve used to switch flow lines
Low Maintenance, Low Running Costs
Carrier gas purification function as standard
- A carrier gas purification function is installed as standard for 24-hour continuous operation by the analyzer. Purifying instrument air or compressor air in a facility to produce carrier gas significantly reduces running costs.
N2 carrier set
- Compressed air is normally used as the carrier gas source but high-purity nitrogen gas can be used as the carrier gas as well. Convenient when a nitrogen gas centralized pipe is available in a facility (optional).
Water pump control functions
- Pumps sample only when necessary to save pumping energy and reduce maintenance.
- Accommodates low flow rates and restricted sampling timing.
Notification of replacement periods
- When the time to replace a consumable approaches, a pop-up window notifies the operator and gives instructions.
- Combining the contact outputs and other warning outputs simplifies consumables management.
Color LCD touch screen
- Easy-to-view color LCD
- Easy touch screen operation
- Large buttons
- The calendar simplifies scheduling for automatic calibration, instrument sleep function, control sample measurement, and catalyst regeneration (up to 14 weeks). Batch inputs can be made by specifying a day of the week.
Hot sample measurement
- Off-line sample measurements can be performed in the standby time periods, even during on-line operation.
Generous data storage capacity
- The instrument internal memory can store 20,000 measured values (equivalent to one year's data at a 30-minute measuring cycle), 100 calibration values (equivalent to weekly automatic calibration over one year), and history of 100 alarms.
- Six calibration curves can be saved for each measurement type (TC, NPOC, IC*, POC*, and TN*) to simplify switching between operation conditions.
- USB port fitted as standard below the touch screen. Measured values and measurement conditions can be saved to USB memory. Measured results are saved as CSV files to simplify the management and processing of large quantities of data.
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