0 overview – Xylem TB500 ONLINE TURBIDITY ANALYZERS User Manual
Page 6

TB500 (2/07)
Rev. 1.0
2
1.0 Overview
The TB500 process turbidimeter allows for the measurement of the turbidity of process
water on-line. The White Light TB500 has been designed to meet the design criteria
specified by the US EPA 180.1 on turbidity measurement. The infrared TB500 was
designed to meet the design criteria specified in ISO 7027 and DIN 27027 for the
measurement of the turbidity of a sample. Both models have long life lamps.
Some models have ultrasonic cleaning. Refer to section 8.2 for more information.
1.1 The TB500 Series
The TB500 series instruments have a wide variety of options available. Refer to the table
below to determine which factory installed options are available.
Model #
RS-485
Modbus
Backlight
Ultrasonic
Cleaning
Range
NTU
Flow
Alarm
TB502 WL
Standard
Standard
Standard
N/A
0-1000
Option
TB502 IR
Standard
Standard
Standard
N/A
0-1000
Option
TB504 WL
Standard
Standard
Standard
Standard
0-1000
Option
TB504 IR
Standard
Standard
Standard
Standard
0-1000
Option