HF scientific 19944 Triple Validation Turbidimeter - 0-100 NTU - Manual (Page 7)

TVT2 (5/02)
Rev. 1.7 (.pdf) 2
1.0 Overview
The TVT process turbidimeter allows you to measure the turbidity of your process water
on-line. The White Light TVT has been designed to meet the design criteria specified by
the US EPA on turbidity measurement. The Infra-Red TVT was designed to meet the
design criteria specified in ISO 7027 and DIN 27027 for the measurement of the turbidity
of a sample.
1.1 Unpacking and Inspection of the Instrument and Accessories
The table below indicates the items that you should find in your turbidimeter shipment.
Item Part # Quantity
TVT Turbidimeter 19943 (White Light Version), or
19944 (Infrared Version)
1
Instruction Manual 22569 1
Sample Tube Cleaning Brush 22698 1
Black Nylon Semi-Rigid Tubing 22740 10 ft.
Desiccant Cartridge 19610 1
Remove the instrument from the packing carton. Carefully inspect all items to ensure
that no visible damage has occurred during shipment. If the items you received do not
match your order, please immediately contact your local distributor or the HF scientific,
inc. Customer Service department.
1.2 The Display
Figure 1 illustrates all the items that can appear on the display. The upper row of the
display (1) is used for reporting the turbidity levels and to provide user guidance in the
customer setting routine. The lower row of the display (2) is used to communicate error
messages and user guidance. The display has several status indicators (3) that distinguish
the operation of the instrument. In addition there are several indicators that display the
different scales (4) that the instrument will report. Other indicators (5) provide guidance
when the setup and calibration routines are being used.