
February 2017
www.farmscanag.com
AM-74V1-4
60
Tank Setup
CALIBRATION METHOD
The flow sensor calibration factor relates to the number of pulses per litre (PPL) generated by the flow
sensor. The pulse factor is unique to every flow sensor and will vary slightly depending on liquid viscosity
and plumbing configuration. In some cases, a tag will be attached to new flow meters & this value can be
entered into the Manual Cal. This is a good starting point before a full calibration.
Two methods of Flow Meter Calibration are available:
Method 1: Manual Factor or Known PPL (found on flow meter tag)
Method 2: Full System Calibration (calculated method)
METHOD 1: MANUAL FACTOR OR KNOWN PPL
In some cases, common flow meters are pre-calibrated from factory and are fitted with a tag to each flow
insert.
In the case of our standard flow meter supplied by POLMAC a tag attached will indicate the current PPL
factor for that flow insert. If the value is known, insert the value in the Pulse/L window as shown below.
Even though on the tag attached to the flow sensor included in the kit there is a base calibration factor, this
factor should be checked. Refer to Method 2 (in the next section).
Method 2
Method 1