User's Manual

4.10 Flow Calibration
The purpose of calibration is to improve the accuracy of added elements; Click "flow rate calibration" in the setting interface to enter the calibration pump
head selection interface, select the pump head to be calibrated, and enter the flow calibration interface. Calibration requires the use of a graduated
cylinder. The pump is equipped with a 10ML graduated cylinder when it leaves the factory. Considering the different concentration of the titrant of the
pump tube and the different aging degree of the pump tube, calibration is required when the titration is suspected to be inaccurate
a.Flow rate calibration:Click on the flow rate calibration on the setting interface to enter the flow rate calibration interface
b.Speed:Set the speed of the pump to be calibrated;
c.Start emptying:The purpose of emptying is to exhaust the air in the pump tube, so that the accuracy will not be affected during subsequent
calibration; after clicking empty, you can click to find that the air in the pump tube is discharged stop
d.Long titration time:Set the running time of the pump during calibration Before proceeding to the next step, make sure that the inlet of the
pump tube has been immersed in water and the outlet of the pump tube is placed in a graduated cylinder
e.Start titration: Click the titration button, and the pump will run for the duration set in the previous step and then stop
f.Input v olume:Input after reading the liquid volume in the measuring cylinder, the unit is ml
g.Calibration completed:Click the "calibration complete" button to complete the flow calibration
4.11 Firmware upgrade
When the pump's firmware program is updated, the user needs to upgrade the firmware to use it
a.Current firmware version:
b.New version prompt:If there is a new version, this release will have a new version prompt
c.Status after firmware update is complete d:Display status after firmware update is completed The upgrade steps are as follows: Enter the
App setting interface, if you find a new version of the firmware appears, click the b update button to update the firmware. At this time, do not perform
other operations, do not exit the App or re-enter the App. When the upgrade is completed, the red status indicator of the titration pump will be on for
a long time At the same time, the buzzer will sound twice, indicating that the device firmware upgrade is complete. After the device upgrade is
completed, normal operations can be performed. If the upgrade fails, please repeat the upgrade steps.
Note: The power cannot be cut off during the upgrade process, and the App should not perform other operations during the upgrade process