Model 6700U

Organics Analyzer

Description

Features

Specifications

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Description

Teledyne’s 6700U leverages ultraviolet absorption (UVA) detection to measure for certain dissolved organic substances in water treatment and wastewater applications. Absorption of UV light at the 254 nm band is an indication of the presence of disinfection byproducts (DBPs), tri-halo methanes (TTHM) and halo-acetic acids (HAA). The 6700U provides an on-line measurement without reagents and utility gases required.

Method of Detection

The 6700U uses a stable, long-life xenon flash lamp to emit UV light through the optical path to the detector. In the presence of some dissolved organics, 254 nm light will be absorbed by the sample and the resulting loss of signal will be translated into a volumetric concentration.

Software

The LCD touchscreen gives the user a real-time reading as well as alarm status and push-button functionality on the main screen.

Features

Specifications

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Measurement Principle	UV 254 absorption measurement
Range	22 mm cell: 0.01-50 m-1 SAC, 0.15-100 mg/L COD (eq), 0.06-40 mg/L TOC (eq), 0-05-30 mg/L BOD (eq) 12 mm cell: 0.05-100 m-1 SAC, 0.5-200 mg/L COD (eq), 0.2-80 mg/L TOC (eq), 0.2-65 mg/L BOD (eq) 6 mm cell: 0.1-250 m-1 SAC, 0.75-370 mg/L COD (eq), 0.3-150 mg/L TOC (eq), 0.25-120 mg/L BOD (eq) 2 mm cell: 1.5-700 m-1 SAC, 2.5-1000 mg/L COD (eq), 1-410 mg/L TOC (eq), 0.8-300 mg/L BOD (eq) Higher ranges are available using sample dilution option
Repeatability	22 mm cell: ± 0.15 mg/L C 12 mm cell: ± 0.5 mg/L C 6 mm cell: ± 0.75 mg/L C 2 mm cell: ± 2.5 mg/L C
Cycle Time	About 1 minute, including conditioning before analysis cycle and rinsing after measuring
Temperature	Operating: 41° to 113°F (5° to 45°C) Sample: 41° to 122°F (5° to 50°C)
Sample Connections	Inlet: 1/4″ tube fitting Outlet: 1/2″ tube fitting (neoprene)
Outputs	2 x 4-20 mA outputs for measured data RS-485 MODBUS-RTU 4 SPDT programmable alarms, potential free relays, N.O. or N.C.
Dimensions	23.6″H x 15.0″W x 8.2″D (60.6 x 38.0 x 20.9 cm) Approximately 44 lbs (20 kg)
Power	Voltage: 100-240 VAC 50/60 Hz standard or 24 VDC (option) Power Consumption: 80 VA max
Protection Class	IP-65