This calibration tool is designed to meet the IrrigationNZ: NZ Irrigation System Performance Assessment Code of Practice – Part F: Traveller. Download the code for more guidance. For a quick check, see the Travelling Irrigator Calibration tool.
NOTE: IRRIG8 does not store your data or keep any records. Leaving or refreshing this page will delete all your data, so print reports and export the data or graphs if you want to save them. To have a copy you can reload and edit, download the Save Session csv file and save it. This tool lets you upload it again to automatically repopulate all your data.
Beta version: See disclaimer at foot of page
💦 Travelling Irrigator Evaluation v1.0.0
Performance assessment following the IrrigationNZ Code of Practice Part F, Section 3
Save everything entered on all tabs, plus the results, to a CSV file on your computer. Load it later to fill the calculator back in and recalculate.
With the machine operating. If hydrants are on a common mainline, measure them while the machine runs at the hydrant furthest from the pump.
| Hydrant | Name / position | Pressure |
|---|---|---|
| 1 | ||
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | ||
| 6 | ||
| 7 | ||
| 8 |
Machine stationary. Twelve sprinklers of the same specification chosen at random along the boom. Shroud each with a loose hose, collect the whole discharge in a container of at least 20 litres without affecting pressure, and time how long it takes to fill.
| # | Position on boom (m) | Pressure | Volume (L) | Time (s) |
|---|---|---|---|---|
| 1 | ||||
| 2 | ||||
| 3 | ||||
| 4 | ||||
| 5 | ||||
| 6 | ||||
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| 8 | ||||
| 9 | ||||
| 10 | ||||
| 11 | ||||
| 12 |
A collector identical to the test collectors, with a known volume of water, placed upwind of the test area. Each collector is corrected by the evaporation rate × the time from when wetting of its line ended to when it was read. Reset the control collector for each line if lines are read separately.
Three lines of collectors at right angles to the hose or cable, at least 50% of the travel length apart (on reel machines, where different numbers of hose layers are on the reel). Choose a spacing so that half the lane width is a whole number of spacings; no more than 6 m apart for guns, 3 m for booms. Extend each line to the full wetted radius. Not in wheel tracks.
Record each distance from the centre of the travel path on the left and right. The first line must be further from the start than the wetted radius, and the last line further from the end.
📄 Import Collector Readings from CSV (optional)
Columns: Line (1–6), Side (L or R), Distance from centre (m), Volume (mL), Time read (hh:mm, optional), Exclude (yes/no, optional), Reason (optional). A header row is allowed. Replaces the readings of the lines in the file.
5 m segments along the travel path, at least one for each layer of hose or cable on the reel. Record each segment by the distance of the gun cart from the final end point of the strip.
| # | Distance from end (m) | Segment length (m) | Time (s) |
|---|---|---|---|
| 1 | |||
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| 6 | |||
| 7 | |||
| 8 | |||
| 9 | |||
| 10 |
What is calculated (Code Part F, Section 3.2)
- Evaporation- and overlap-adjusted depths for each line; low quarter DU and Christiansen CU for each line and pooled for the field
- Field DU at a range of lane widths
- Travel speeds, longitudinal speed uniformity, flow from collectors and depth from total flow
- Application intensity from flow and the measured wetted area
- Hydrant and machine pressures, boom sprinkler discharge uniformity, energy
- Adjusted travel speed for the target depth and the excess water use factor