Zancha Low-Temperature TOC

Benefits

Patented reactor design with constant temperature guarantees effective oxidation
Increased operational safety through application of a single UV lamp, enabling effective self-monitoring of the system
Sample preparation: automatically cleaned tangential coarse filter
New, highly precise NDIR detector: Sapphire optical windows and Kynar® sample cell eliminate corrosion problems
New operating principle of the NDIR detector eliminates the need for separate IR sources and IR detectors. Thanks to this design, the system is reliable and requires low maintenance
Available as dual channel
Allows for measurement of grab samples
COD correlation possible


Field of application

Outflow monitoring
Methanol dosing control
Monitoring of drinking water, cooling water and condensation
Wastewater containing salt
Industrial discharge control

Enhanced NDIR Detector
Using NDIR detection of CO2 for TOC analysis is the preferred method for
complying with U.S. and International standard protocols.
Zancha TOC’s enhanced NDIR detector eliminates the need for separate infrared
sources and detectors for the sample and reference cells. This design
provides a sensitive, stable, noise-free environment for accurate and reliable
CO2 detection.

Zancha TOC Specifications

• Function: Total Organic Carbon (TOC) or Total Carbon (TC)
• Operating Principle: Ultraviolet-promoted, sodium persulfate oxidation. Non-dispersive infrared detection
• Organic Measurement Ranges: Unlimited full-scale selectable ranges between 10 and 10,000 mg/L carbon
• Data Handling: EIA/TIA-232E and CCITT V.28 Serial (unidirectional )
• Electrical Output: Programmable, user-selectable 4-20mA or 0-20mA current loop into 1000 ohms maximum
• Alarms: Two programmable alarm levels driving up to 8 programmable Type C* relays
  Programmable Outputs: Up to 8 customer programmable outputs on Type C*relays (4 relays are standard). Can be programmed to
  output any combination of 18 system parameters (includes the two alarms)
• Display: 4-line, 20 character/line backlit display
• Power Requirements: 115 ± 10% VAC, 50/60 Hz, 2 Amps maximum, 230W
  230 ± 10% VAC, 50/60 Hz, 1 Amp maximum, 230W
• Operating Ambient Temperature: > 0°C to 50°C
• Calibration: 2 point liquid, 2 point gas, manual and automatic

Performance Characteristics**

• Response Time: Less than 8 minutes to T90 at 100 mg/L configuration TOC
• Repeatability: ± 1% full scale
• Drift: ± 1% of full scale over 72 hours without calibration at 20°C
• Temperature Stability: Less than 2% of full scale drift over ambient range of 10° C to 30°C without liquid calibration
• Inorganic Carbon Removal: > 95% removal when TIC equals full scale TOC with standard TIC scrubber
  Accuracy (% of full scale): ± 1.5% for TOC concentrations ranging from 0% to 75% of full scale
  ± 2.5% for TOC concentrations ranging from 75% to 100% of full scale

Sample Requirements

• Inlet Pressure: Atmospheric to 3PSIG (1.00 - 1.21Barr)
• Drain Pressure: Gravity drain, vented to atmosphere
• Suspended Solids: PA2 or PA3 Sample Preparation/Filter System required where particle size exceeds 200 µm. 3% maximum concentration of suspended solids by volume. Oxidation rate is dependent on constituency Flow Rate of Sample
• Through unit: 35 ml/min. maximum at 60 Hz
  Carrier Gas Compressed air containing < 3mg/L CO2. Consumption: Less than 750 cc/min. at 30 PSIG
• Reagents: 1.5 M Na2S2O8 (sodium persulfate) & 10% v/v H3PO4 (phosphoric acid) both in deionized water.
• Consumption: 5.2 gallons/month each Physical Characteristics
• Enclosure: NEMA 4, IP 65
• External Dimensions: Height: 30" (76 cm) nominal
  Width: 24" (61 cm) nominal
  Depth: 22" (56 cm) nominal
  Weight: 160 lbs. (72.6 kg) nominal
  Shipping Weight: 220 lbs. (99.8 kg) nominal

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