NTU-compliant Surface Scattered Turbidity Analyzer TB450G

	Home / Our Businesses / IA / Products / Environmental.. / Turbidity Ana.. /
	NTU-compliant Surface Scattered Turbidity Analyzer TB450G

NTU-compliant Surface Scattered Type Turbidity Analyzer
Model TB450G

Product Information

TB450G NTU-compliant Surface Scattered Type Turbidity Analyzer

The Model TB450G NTU-compliant surface scattered type turbidity analyzer has been designed to indicate turbidity in nephelometric turbidity units (NTUs), which is the unit used worldwide.

It is microprocessor-based and provides superior performance and high reliability. Moreover the improvement of the light source and the photodetecting element enables lower turbidity measurement with a resolution ten times larger than that of the existing surface scattered type turbidity analyzers. In other words, the TB450G can measure turbidity at one tenth the turbidity level that present models can detect.

General Specification

User's Manual [Low Range Type]

User's Manual [High Range Type]

Features

*	Equipped with a microprocessor, allowing provision of advanced performance and high reliability.
*	NTU turbidity unit display is available by right-angled scattering light.
*	Minimum range 0 to 0.1 NTU.
*	Enhanced self-testing functions such as detection of a disconnected lamp, a converter check, and upper and lower limit alarm.
*	Provide with multiple function such as automatic cleaning, universal-range, and automatic zero calibration.
*	Use of surface scattering light measuring method eliminates the measurement errors caused by contamination on the cell port.
*	Provide with measures against air bubbles by signal smoothig.

Specifications

Measuring method	Right-angled Surface Scattering light measuring method conforming to EPA 180.1 and ASTM D1889-88a
Measuring range	0-0.1 to 0-100 NTU, 0-10 to 0-2000 NTU
Output range	3 ranges selectable
Analog output signal	4 to 20 mA DC (Maximum load resistance 550 Ω) or 1 to 5 V DC (Output resistance 100 Ω or less)
Digital output function	RS-232C Communication
Contact output	Maintenance output, Fail output, Range output, Upper or Lower limit alarm (Default), Auto calibration / Auto cleaning (Selectable)
Contact input	Remote range switching
Automatic cleaning function	Water jet cleaning method
Automatic calibration function	Zero-point calibration using zero water
Ambient temperature limits	-5 to 50 deg C (Heating protection is required when water sample gets frozen in winter)
Ambient humidity limits	5 to 95 % RH (non-condensing)
Measuring water conditions	Flow rate ; 1.5 to 2 l/m Temperature ; 0 to 50 deg C(Ambient temperature +30 deg C)
Power supply	100/110/200/220 V AC, 50/60 Hz
Power consumption	70 VA or less (Detector and Converter)

Performance

Linearity	Low Range (-L); When the upper limit value of span is 40 NTU or less; ±2 % of the range upper limit or ±0.02 NTU, whichever is greater. High Range (-H); When the upper limit value of span is 1000 NTU or less; ±2 % of the range upper limit
Repeatability	Low Range (-L): 2 % of the range upper limit or 0.004 NTU, whichever is greater. High Range (-H): 2 % of the range upper limit.
Response Time	2 minutes or less (90 % response)