# Learn How to Program Gems' M103 Series Compact Meter/Totalizer

Product Manager, Carl Schoenherr, demonstrates how to program.

Video Transcript:

Welcome, my name is Carl Schoenherr. I work with Gems Sensors as a Product Manager. One of the products I represent is the M103 panel meter which is shown here. It's also shown with two sensors. These sensors work with the meter. Both sensors put out a pulse output device. One is called the RotorFlow the other is the Turbo flow but both of them give a pulse output device that this meter it can work with. This meter also has the ability to give you a total as well as a rate. The total like I say when you're driving a car or something. It would be your total trip that you take. 700 miles or so that's your total. Your rate would be like your speed and in terms of flow it would be in gallons per minute and then maybe total gallons. How you actually program the meter to display in gallons all you have to know is from the sensor how many pulses come out of the sensor equal a gallon.

The sensor that I'm hooking up to it, I know what it is. It's 10,000 some odd. How I know it is? There's two ways. Either on the spec sheet also every meter comes with a manual explaining how to do this. Another thing we have made up is a little cheat sheet. The main thing is knowing how many pulses you can program it. When you actually go to program it you don't need the sensor wire to it. You do need a AC plugged into the meter and then your sensor wired into the meter can be done later on. To actually do it you need a jumper between terminal 1 and 5 and that let's you into the calibration mode. So when you're in the calibration mode let us go through it.

There's going to be six steps. We're at step one. This is where we're actually going to enter in the calibration factor for your total gallons a minute. As we could see the number that's been placed in here is .0094. The math will be shown to you separately. Again it's only derived by knowing number of pulses that equal one gallon. When we look at it how you actually change the number, you'll use this key on the far right to light up the point or the digit that you want to change you. Then use the other key to scroll down to it. I'm going to leave it the number that I have in there. The math has already been done. It's .0094. You scroll to the end. When you're ready to move on to step two you press your down arrow. You go to step two. What step two is, is where do I want my decimal point for the total. Do I want it to be 1.0 gallons? 1.00 gallons? In this case I've chosen two but again when you look at the choices you could choose 3,4,5. You could choose none. Meaning just count in increments of 1 gallon. Let's leave it where I had it. At two decimal places. We're done with step two.

We move on to step three. Step three is setting the decimal point for the scaling factor. We're going to put in for rate. Again it's just a mathematical formula knowing the number of pulses that come out of the meter that equal one gallon. See the little decimal point lining up as I press the hour button? It just lights up into a different spot. I want it all the way to the far left to enter my scaling factor. The scaling factor that I'm going to put in there is .006 for this sensor. How you actually put it in, again, is you just choose the digit that you want to change. Use the other key to change it. Let me leave it where I have it which is .006 for this meter. You're at the end. You press the down key. You go to step 5.