Electrofloat calibration method
Thread Content
Specific details, thank you. . . . . . . . . . .
There are two methods for calibrating electric floats. 1. Verification by irrigation method. Based on the range of the float and the density of the medium being measured, the water filling height at 0%, 25%, 50%, 75%, and 100% can be calculated. The measured output currents are 4mA, 8mA, 12mA, 16mA, and 20mA respectively. The specific formula is: H = (D1/D0) x L. D1: Medium density; D0: Density of water; L: Range of the float. 2. Calibration by weight hanging method. Measure the diameter of the buoy and calculate the buoyant force value. Calculate the weight values required at 4mA, 8mA, 12mA, 16mA, and 20mA, then use an ammeter to measure the current and make adjustments accordingly.
On-site, the water calibration method is generally used; the details were explained quite clearly upstairs.
On-site, the water calibration method is generally used; the details were explained quite clearly upstairs.
By the way, as an example: if 50% of the output current is 14mA, how do you adjust the correct input value?
Buoys also have depth-measuring functions! It’s the light density on top and the heavy density below! If it is a level-measuring float, then the water level corresponding to the float being fully filled with light medium should be set at 0, while the water level corresponding to the float being fully filled with heavy medium should be set at 100. Be sure to pay attention to whether it is a liquid level float or a level-indicating float!
Reply to 5# syppc: I don’t know what kind of float you’re using. As long as you use the two-point method for calibration, 50% of the value will return to 12mA; just perform the calibration a few times!
Yeah, I’ll give it a try when I’m at work