Van Walt CT12 Operating Instructions Manual Download Page 3

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Operating Instructions

Compact Turbimeter

VAN WALT

Monitoring your needs

START UP

To switch the unit on, press the POWER button and release. An audible beep will

confirm the instrument is on.

The LCD screen is provided with a backlight option that can be set to on/off in the

System menu (see Page 9). The initial default position is ON. After initialization the

Mode screen will appear and display three options :

1. Reading – Select the mode to measure turbidity or suspended solids.

2. Calibration – Choose either SDVB, Total Suspended Solids or restore the factory

calibration values.

3. System – View or set Log (result and calibration), Operator ID, Sample ID,

Units, Language, Set Time, Set Date, Date Format, Software Version and switch

the backlight On/Off

Navigation through Menus is carried out using the Up/Down buttons, using the ‘OK’

button to select or ‘Back’ to return up a level. Switch off the Compact Turbimeter by

holding the POWER button for one second.

Sample Holder

Up/Down

Power

Back

Summary of Contents for CT12

Page 1: ...x 01428 656 808 www vanwalt com Compact Turbimeter 1 VAN WALT Monitoring your needs CONTENTS INTRODUCTION KIT CONTENTS QUADOPTIX TECHNOLOGY START UP BATTERY LIFE SYSTEM MENU READING MENU CALIBRATION M...

Page 2: ...TENTS Compact Turbimeter Instrument CT12 Model 4 x Sample Cuvettes 4 x SDVB Calibration Standards Silicone Oil 10 ml 2 x Packs of Lint Free Cloths Sample Dilution Tube Cleaning Brush 2 x Heat Pads WP4...

Page 3: ...ON After initialization the Mode screen will appear and display three options 1 Reading Select the mode to measure turbidity or suspended solids 2 Calibration Choose either SDVB Total Suspended Solid...

Page 4: ...r data including the last mode used for reading Replacing the AA batteries will not lead to settings or calibration data being lost If battery power is insufficient for effective operation the Compact...

Page 5: ...by pressing Done briefly Select OK to accept or Edit to change the entry Multiple Operator IDs can be stored and recalled from memory as required Sample ID Optionally set the Sample ID using the same...

Page 6: ...event stray light from adversely affecting readings Microscopic scratches will refract light and can lead to higher than expected values To prevent scratches having an impact apply a thin film of sili...

Page 7: ...ng mode select Normal and press OK Insert the sample with the orientation mark facing forward and press Read A beep will sound at the start and end of measurement Result is displayed in and stored in...

Page 8: ...wn arrows The calibration data will be recalled automatically Insert the sample with the orientation mark facing forward and press Read A beep will occur at the start and end of each measurement cycle...

Page 9: ...can be used 2 Factor Using data manipulated externally a slope and intercept for the straight line relationship can be entered directly Calibrating the Compact Turbimeter SDVB Select Calibration and p...

Page 10: ...ady been created use the Up Down arrows to highlight and press OK to select If a new Sample ID is required move the highlight to a blank area and press New Create the new Sample ID using the Up Down b...

Page 11: ...mine any offset that may have occurred due to fouling Subjecting the standards to prolonged exposure to low temperatures will reduce the NTU value The use of a WP48 Heat Pad is recommenced in these ci...

Page 12: ...materials Readings are unstable variable Turbidity is a measurement of scattered light with the source of scattering being microscopic and larger solids present in the sample Solids can be mobile or...