Check standards are used to determine if an instrument is still within calibration.
Kemio check standards verify that the instrument correctly measures electric signals. As with electrochemical sensors in samples, the Kemio instrument applies a voltage to the check standard and measures the resulting current.
Check standards include verified resistors, which produce a consistent electric current. Kemio validates the measured current internally. Sensor instruments display the corresponding concentration value, which is compared manually to target values on the certificate supplied with the set of check standards.
When testing a sample, Kemio automatically detects the optimum measurement range by switching between sensitivity stages. Each test parameter and corresponding sensor is calibrated to deliver results from the required sensitivity ranges. As Palintest sensor products are only measured using Sensitivity Ranges 1-3 and their performance is validated through check standards S1-S3, no existing test parameters or sensor calibrations require access to sensitivity range S4. Therefore, for your convenience, we have removed the need to validate with the Check Standard 4.
As a result, Check Standard S4 will no longer be requested during Check Standard Mode measurements and will no longer be supplied with the Kemio instrument. Our firmware has been updated to reflect these changes and can be downloaded from our website here.
Palintest will continue to calibrate Check Standard S4 during manufacture, however all measurements will be limited to sensitivity ranges Stages 1 to 3 and Stage 4 will be reserved for future developments.
If you would like to learn more or have questions related to Kemio, please get in touch with our technical team here.
Currently the contact form is under maintenance, please use the below contact details to speak to your local Palintest branch where a member of the team will be happy to assist.
15th November 2022
In summer, Product Manager for our Wagtech product range, Shaurya Sheoran, visited a WaterAid field site in India to discuss the current challenges on water quality faced by rural parts of India and how our kits are helping them achieve their mission of providing safe drinking water.
31st October 2022
Last month Product Manager for our Wagtech range Shaurya Sheoran and Technical Support Specialist Jessica McKenna provided some water quality training sessions as part of the RedR/ Cranfield University borehole drilling course. The event is a week-long training course covering well siting, drilling supervision and water quality sampling.
31st October 2022
Last month we closed our offices globally for one day to allow our employees some well-deserved rest. Our designated wellbeing day took place on 7th October 2022 and was day off work for all Palintest employees to relax and recharge in whatever way they felt appropriate. We have received some great stories of how our employees chose to spend this extra time away from the business to relax and focus on their physical, mental, and emotional state.