HF scientific MicroTOL Online Turbidimeter - Manual (Page 8)

MICRO TOL (5/10) 2
Rev. 4.8
1.0 Overview
The MICRO TOL process turbidimeter allows for the measurement of the turbidity of
process water on-line. The White Light MICRO TOL has been designed to meet the
design criteria specified by the US EPA 180.1 on turbidity measurement. The infrared
MICRO TOL 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.
A pressure regulator on the incoming line is a standard on all Micro TOL instruments and
will reduce pressures up to 1380kPa (200 PSI) down to (104kPa) 15 PSI.
1.1 The Micro TOL Series
The Micro TOL series instruments have a wide variety of options available. Refer to the
table below to determine which factory installed options are available.
Catalog
No.
Description RS-485 Modbus Backlight Ultrasonic
Cleaning
Range
NTU
Flow
Alarm
20053 Micro TOL2 WL Standard Standard Standard N/A 0-1000 Option
20054 Micro TOL2 IR Standard Standard Standard N/A 0-1000 Option
20055 Micro TOL3 WL Standard Standard Standard Standard 0-100 Option
20056 Micro TOL3 IR Standard Standard Standard Standard 0-100 Option
20063 Micro TOL4 WL Standard Standard Standard Standard 0-1000 Option
20064 Micro TOL4 IR Standard Standard Standard Standard 0-1000 Option