HF scientific 19944 Triple Validation Turbidimeter - 0-100 NTU - Manual (Page 5)

TVT2 (5/02) ii
Rev. 1.7 (.pdf)
Table of Contents
Specifications.................................................................................................................................. 1
1.0 Overview................................................................................................................................. 1
1.1 Unpacking and Inspection of the Instrument and Accessories ........................................... 2
1.2 The Display......................................................................................................................... 2
1.3 The Touch Pad .................................................................................................................... 3
2.0 Safety ...................................................................................................................................... 4
3.0 Installation and Commissioning ............................................................................................. 5
3.1 Mounting & Site Selection.................................................................................................. 5
3.2 Plumbing............................................................................................................................. 6
3.3 Electrical Connections ........................................................................................................ 6
4.0 Normal Operation ................................................................................................................... 8
4.1 Routine Measurement ......................................................................................................... 9
4.2 Security Access Feature...................................................................................................... 9
5.0 Instrument Calibration .......................................................................................................... 10
5.1 Calibration Standards........................................................................................................ 11
5.2 Calibration Procedures...................................................................................................... 11
6.0 Calibration by Comparison to Laboratory Measurements (Instrument Offset).................... 14
7.0 Instrument Configuration (Range)........................................................................................ 16
7.1 0-100 NTU Range Selection............................................................................................. 16
8.0 Instrument Configuration (SETUP Mode)............................................................................ 16
8.1 Displayed Resolution........................................................................................................ 16
8.2 Setting the Year................................................................................................................. 17
8.3 Setting the Day and Month ............................................................................................... 17
8.4 Setting the Time................................................................................................................ 18
8.5 Programming the Alarms.................................................................................................. 19
8.5.1 Alarm 1 ..................................................................................................................... 19
8.5.2 Alarm 2 ..................................................................................................................... 20
8.6 Setting the Analog Output (O/P)....................................................................................... 21
8.7 Configuring the RS 485 I/O Port ...................................................................................... 22
8.8 Setting the Security Access Option................................................................................... 25
9.0 Troubleshooting/System Alarm Relay.................................................................................. 26
9.1 System Warning Message(s)............................................................................................. 26
9.2 System Error Message ...................................................................................................... 26
9.3 Technical and Customer Assistance ................................................................................. 27
10.0 Routine Maintenance ........................................................................................................ 27
10.1 Cleaning the Optical Chamber (Sample Tube)............................................................. 27
10.2 Replacing the Desiccant Cartridge................................................................................ 27
11.0 Accessories and Replacement Parts List........................................................................... 29
12.0 Warranty ........................................................................................................................... 30