Obtaining accurate dissolved oxygen measurements is essential for several fields of industry, government, and education, such as water quality monitoring, environmental monitoring, and the food sector - like the brewing industry.
It’s essential to know how to calibrate your meter to ensure you obtain actual results. The IC-HI98193 is capable of performing several calibrations, including; one or two-point automatic dissolved calibration, one point manual dissolved oxygen calibration and, one or two points user temperature calibration. This range of functionality dramatically improves the reliability of the measurements you will achieve.
The following calibration guide is a step by step walkthrough of a two-point automatic dissolved oxygen calibration at 0% saturation (0mg/L) and 100% saturation (8.26mg/L).
How to Calibrate the Hanna Instruments IC-HI98193
Waterproof Portable Dissolved Oxygen And Bod Meter
To perform a calibration, you will need to ensure that the probe is ready for measurements, i.e. the membrane is filled with electrolytes and the probe connected to the meter. If you are unsure how to do this, see the Hanna Instruments product manual in the additional links or contact us.
You will need:
- Hanna Instruments IC-HI98193 Waterproof Portable Dissolved Oxygen And Bod Meter
- Zero Oxygen Solution, for example, MA9070 (500ml bottle)
- Beaker or glass
Two Point Automatic Calibration on the Hanna Instruments IC-HI98193
- Starting with automatic zero calibration, pour enough zero-oxygen solution into the beaker to submerge the probe. Place the DO probe into the zero oxygen solution and stir gently for 2-3 minutes.
- After 2-3 minutes, press ‘CAL’ to display the calibration menu.
- Press the button below DO to select the dissolved oxygen calibration.
- The dissolved oxygen calibration screen will be displayed, and the standard 0% saturation (0 mg/L) will be automatically selected.
- While the reading is stabilising an hourglass will be illuminated on the top right of the LCD.
- When the reading is stable, and within an acceptable range of the standard, the CFM functional key appears. Press the CFM key to confirm the first calibration point.
- The IC-HI98193 automatically moves on to calibrate automatic slope calibration at 100% saturation(8.26mg/L). Remove the probe from the zero oxygen solution and gently shake to remove excess zero oxygen solution. Leave the probe in air.
- The hourglass icon will be shown on the display until the reading becomes stable.
- When stable and within an acceptable range of the 100% saturation (8.26mg/L) standard, the CFM function key is displayed.
- Press the CFM button to confirm the second calibration point.
- The device will return to the main screen with both the calibration points saved. The calibration is complete.
CONCLUSION
The two-point calibration on the Hanna Instruments IC-HI98193 is a straightforward task that improves the reliability and accuracy of the instrument.If you have any questions on how to perform a calibration on the IC-HI98193 or want to know more about the device, contact us!
Additional Links
- View the Hanna Instruments IC-HI98193 full product features and specifications here.
- For help setting up the probe or more information on other calibration procedures, see the Hanna Instruments IC-HI98193 User Manual.
- The MA9070 - Zero Oxygen Solution (500ml bottle) is essential for dissolved oxygen 0% calibrations.
- Watch the Hanna Instruments IC-HI98193 calibration video again! ‘How to Calibrate the IC-HI98193 Waterproof Portable Dissolved Oxygen Meter’.