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how do you know that your SPG is reading 150 low? The odds that the transmitter are that far out of calibration is highly unlikely. Like seriously unlikely.
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That's what we thought - just wanted to confirm. I appreciate your response.
I have to admit I kind of hate the dongle. I've got a bike tube pairing it to my secondary hose but still looks ghetto. I'm sure I am going to get "you are going to die" glances from others. I'm lake diving this weekend and off to Cozumel next. I think if everything works out fine in the lake I'm going to move the SPG to the bag and move the transmitter to my left HP port.
My only hesitation is that the transmitter is reading ~150 lower than my SPG (I checked every 500 psi) and I already know my SPG reads ~100-150 low (near 3000, could be different at lower PSI). I really don't want to be diving thinking my tank pressure is really 200-300 higher than it is. The guy in the shop recommended I go into shallow water (4-5 feet) and breath the tank down to find out which one is accurate at the low end.
I would tend to trust the transmitter more than the SPG as @tbone1004 has suggested. The shop should be able to check the pressure though (I sincerely hope their gauges are calibrated if they are providing gas to customers).That's what we thought - just wanted to confirm. I appreciate your response.
I have to admit I kind of hate the dongle. I've got a bike tube pairing it to my secondary hose but still looks ghetto. I'm sure I am going to get "you are going to die" glances from others. I'm lake diving this weekend and off to Cozumel next. I think if everything works out fine in the lake I'm going to move the SPG to the bag and move the transmitter to my left HP port.
My only hesitation is that the transmitter is reading ~150 lower than my SPG (I checked every 500 psi) and I already know my SPG reads ~100-150 low (near 3000, could be different at lower PSI). I really don't want to be diving thinking my tank pressure is really 200-300 higher than it is. The guy in the shop recommended I go into shallow water (4-5 feet) and breath the tank down to find out which one is accurate at the low end.
I forecast that you will lose the spg to your save a dive kit in short order as my wife and I did. There was this one dive however where just before splashing we both suddenly were failing to get a reading. We leaned in to talk about it and suddenly they started working. Duh, we had accidently swapped computers. Good laugh and great dive.