Your tubewell has a morning slot from six to eight. The pump starts on time, but the electricity goes off halfway through. When power returns, should the pump finish the hours it missed, or should it stop at eight because the next farmer is waiting? Both answers can be right. The people sharing the water need to agree on which answer applies before anyone sets the timer.
The Kewintech GSM PLUS three-phase mobile starter supports daily schedules with or without run-time compensation, as well as an on-demand timer. Here is how to choose the behaviour for your pump and check it with the person who installs it.
How the GSM PLUS pump timer handles an interruption
Think of a fixed stop time as an appointment and compensated run time as a target. In the first case, the end of the appointment matters. In the second, you want to make up running time lost during a supply interruption. Kewintech describes four daily timer slots based on a real-time clock. You do not need to use all four: start with the one irrigation period you actually need.
One outage, two different finish times
Suppose the planned start is 6:00 am and the duration is two hours. The pump runs until 6:45, loses supply for 30 minutes and can run again at 7:15. With a fixed 8:00 finish, the two running periods add up to 90 minutes. With compensation, the remaining 75 minutes take the finish to 8:30. This example assumes the pump is permitted to restart and runs normally after power returns. A trip, a manual stop or another interruption changes the situation.
खेत की भाषा में: अगर आठ बजे पानी की बारी बदलनी है, तो बंद होने का समय तय रखें। अगर खेत आपका है और मोटर के दो घंटे पूरे करना ज़रूरी है, तो बिजली कटने पर छूटा समय बाद में पूरा करने का विकल्प देखें।
Match the timer to the water arrangement
Shared outlet or turn on a channel. Choose the stop time with the next user. An extra half hour can send water to the wrong field after someone moves a gate. Write the agreed end time on the schedule and tell the person who changes the outlet whether the pump could still be running then.
Independent borewell and field. Compensation may suit a farmer who can leave the outlet in position until the run finishes. Check what else is scheduled afterwards. If another slot follows closely, ask the installer to show how the controller handles an overlap. Do not count the same half hour towards two watering jobs.
Pump filling a storage tank. Time alone cannot tell you how much space is left. If someone changes a valve or the tank is already partly full, yesterday’s duration may be too long today. If stopping at high level is essential, describe that requirement separately when discussing pump automation. Confirm what sensor and stop arrangement the installation actually includes.
What to demonstrate before handing over the phone
Ask the electrician and the regular operator to witness the same short trial. Choose a time when someone can see the outlet and no one is servicing the equipment. Have a qualified person manage any planned interruption using the approved site procedure. The operator can record the results without opening the starter panel.
- Read back the clock and the slot. Record the start, duration and compensation choice. Check unused slots so tomorrow’s operation will not come as a surprise.
- Compare motor status with the outlet. GSM PLUS offers motor and supply status by phone. Have one person check the status while the other confirms water reaches the intended field. Record those observations separately.
- Observe recovery. Note when power and pumping each return. A live supply does not prove the motor restarted. Compare the actual finish with the expected finish for the selected mode.
- Ask about an intentional stop. If someone stops the pump to change the water route, will a pending timer start it again? Have the installer explain the behaviour of your unit before relying on a manual stop. Remote OFF alone is not safe isolation for maintenance.
Leave a note the next operator can use
A useful handover note fits on one line: “North field | 6–8 am | stop at eight even after a cut | outlet checked by ___.” For a compensated run, replace the clock deadline with the target duration. Keep the controller model and the installer’s contact with that note. If the result differs from the plan, those details are more useful than reporting only that the timer is wrong.
Questions buyers ask
Does two hours on the timer guarantee two hours of water?
No. The controller can schedule motor operation. A blocked pipe, an incorrectly positioned valve or a source-water problem can change delivery. If the quantity delivered is the basis for sharing water, discuss how to measure flow rather than converting timer hours into litres without a measurement.
Do I need the battery model for compensation?
Run-time compensation is described on the standard GSM PLUS product page. Battery backup is a separate buying question. If you need the controller to report during a mains outage, compare the GSM PLUS Battery model and confirm the notification you require. A controller battery does not power the pump motor.
What if my pump uses a single-phase supply?
This guide describes the three-phase PLUS. Start with the single-phase starter and confirm its timer behaviour independently before choosing a model.
Discuss your pump schedule with Kewintech
Use the enquiry form below and select Mobile Motor Starter. For the callback, keep your motor rating, supply type, existing starter model and preferred stop time handy. One detail makes the choice much easier: tell us who needs the water next if power returns late.