When using the self absorption method to measure the hydrogen peroxide, the gas hole is produced in the system. How to solve this problem?

The metering pump is installed from the exhaust pump head, and the self irrigation fluid is used. Keep the sucking pipe as short as possible.

Do not measure the liquid after installation and operation of the metering pump?

1. is the drain pipe installed and the drain valve closed? The discharge valve should be opened at the stage of metering pump injection. Note: not all metering pumps have discharge valves.

2. there may be a gas leakage at the suction end of the metering pump. The suction side connector of the hydraulic end may lack the looseness of the O type or the suction valve.

3. valve metering pump may be blocked, liquid can not be measured.

4. the stroke length of the metering pump is not set.

5. of the chemicals that are measured may crystallize at the end of the hydraulic force, causing the unidirectional valve ball and seat to not work properly.

Using the flow monitoring and measuring a high viscosity medium, the flow failure indication signal is received during the injection process. How should we solve this problem?

For the reaction time, the duration of the pulse may not be long enough. Compared with the standard pulse width 80msec, the pulse width expansion of the flow monitor can be activated to increase the pulse width to 300msec. Activate the smart switch, remove the cover fixed circuit board, remove the jumper X-1. This activates the extension function and allows more time before the failure indication.

How to prevent the burning of the stroke positioning motor?

When adjusting the stroke position, ensure that the motor of the metering pump is always running. If the pump motor is not running, the stroke length adjustment lever will resist the tension of the compression spring, which will lead to the premature damage of the stroke positioning motor.