Calibration 5.0
Calibration & Pump Priming
1.Read the entire chemical label and MSDS to make sure you under stand the usage and rates to be applied. Take special note whether the recommended application rate of the chemical is given in fluid ounces per bushel or in fluid ounces per cwt. of seed. If the application rate is given in ounces, you will have to convert cc’s. To do so, multiply ounces by 29.6 cc’s = cc’s of product to be applied. The rate must be known prior to treater calibration.
Example: You have decided that the use rate of your chemical is
5 fluid oz. per cwt. of seed and you will be mixing it with 5 ounces of water. Your application rate is now 10 ounces of product.
10 ounces x 29.6 cc’s = 296 cc’s
2.Mix chemical for a short period of time. To do this, you must first shut OFF the ball valve. This will allow chemical agitation without pumping to your drum. Turn remote switch to ON position for mixing. Note: It is especially important to resuspend the chemical prior to the start of each treating day or before each treating period.
3.You are now ready to prime the pump. Open the ball valve on the premix tank. Disconnect the discharge hose from the fitting in the inlet transition and place it into the chemical tank.
Run the pump manually for
Once you have primed the pump and warmed up the hose, you are ready to calibrate. Remove the hose from the tank and place the discharge hose in a measuring cup or calibrated beaker.
Example: It has already been determined that your chemical application rate is 10 ounces (296 cc’s) fluid oz. per cwt., and you ran 60 pounds of seed in one minute. Therefore it is necessary to catch 177.6 cc’s of chemical in your measuring cup in one minute (296cc’s ¸100 = 2.96cc’s x 60 pounds = 177.6).
