NVIS Nvis901, User Manual

Page 1: ...1 Ver 1 1 Designed Manufactured by 141 B Electronic Complex Pardesipura Indore 452 010 India Tel 91 731 4211500 Telefax 91 731 4202959 Toll free 1800 103 5050 E mail info nvistech comWebsite www nvist...

Page 2: ...Nvis901 Nvis Technologies Pvt Ltd 2...

Page 3: ...Nvis901 Content 1 Introduction 4 2 Features 5 2 Technical Specifications 6 3 Display and Inputs 7 4 Operating Procedure 8 5 PC commutation 13 6 Accessories 20 Nvis Technologies Pvt Ltd 3...

Page 4: ...PC interface 3 point calibration Inbuilt electronic buffer for calibration Auto temperature compensation Manual temperature compensation It provide resolution of 0 01pH and 0 1 C for temperature NV90...

Page 5: ...eatures Micro controller based design Fast response time Resolution of 0 01 pH and 0 1 C for temperature 3 point calibration In built electronic buffers PC software for storing data Nvis Technologies...

Page 6: ...ion 0 01pH Temperature Resolution 0 1 C Electronic Buffer 4 pH 7pH 9 18pH Calibration 3 point PC Interface RS 232 USB Power Supply 230 V 10 50 Hz Automatic Temperature Compensation ATC 0 80 C Manual T...

Page 7: ...nter in menu 4 Escape For Escape from Menu Connectors 1 pH pH Sensor input 2 Temperature Temperature Sensor input Rear Panel Connectors 1 Green Connector 4 pH Electronic Buffer 2 Red Connector 7 pH El...

Page 8: ...Nvis901 5 RS 232 Connector PC Interface 6 USB Connector PC Interface Nvis Technologies Pvt Ltd 8...

Page 9: ...e compensation is enable Fig 2 4 For displaying the electrode potential press UP key for two second and electrode potential appear on the display Fig 3 5 The electrode potential is display till the UP...

Page 10: ...key for decreasing the temperature 3 To out form temperature adjust press ESCAPE key 4 By this MTC is enabled and MTC appear on display in place of ATC Fig 6 Fig 5 5 For disable the MTC press Down ke...

Page 11: ...hen press enter button two times Dip in 4 pH message appear on LCD Fig 6 Fig 6 5 Wait for 1 minute and then press down button Instrument start taking reading After few second Press Up message appear o...

Page 12: ...Always use fresh buffer solution for calibration 3 If given sequence is not followed or buffer are of wrong value then Check the sol message come display 4 pH electrode response time is nearly about...

Page 13: ...ne with pH sensor and buffer solution Electronic calibration not work in case of ph sensor error Electronic calibration procedure The calibration procedure using buffer solution and electronic buffer...

Page 14: ...This software also show duration on which reading taken and plot pH vs time and temperature vs time graph Fig 9 Operating Procedure 1 Install the software on PC 2 Connect Nvis 901 USB probe with PC A...

Page 15: ...ow show duration on which instrument start taking reading Fig 12 Fig 12 5 To start the sampling set the sampling time text box Fig 12 MM is for minute and SS is for second Fig 13 6 Press start button...

Page 16: ...een display the duration of data collection 10 Use Stop button for stopping the data collection 11 Reset button is for resetting the counter and ph and temperature graph 11 Import button display the s...

Page 17: ...odes which fail to respond to the above treatment can be further activated by dipping them to 2 hydrofluoric acid for 5 10 seconds and immediately washing with distilled water This drastic treatment s...

Page 18: ...mperature for long time 4 During MTC setting and calibration process instrument stop sending the data to pc 5 When MTC is active the instrument display the MTC set point and send the MTC set point to...

Page 19: ...mperature Error Table Values in gray are temperature and pH in which there is no error in pH from temperature pH vs mV Table This table show the different value of mV form electrode vs pH Nvis Technol...

Page 20: ...Accessories 1 pH sensor 1No 2 Temperature Sensor 1No 3 Stand 1No 4 Software CD 1No 5 USB Cable 1No 6 RS232 Cable 1No 7 Main Cord 1No 8 Cable for Electronic buffer Calibration 1No Nvis Technologies Pvt...

Page 21: ...municated to us immediately giving full details of the complaints and defects noticed specifically mentioning the type and sr no of the instrument date of purchase etc 6 The repair work will be carrie...