geezer
Veteran Member
- Joined
- Aug 7, 2010
- Messages
- 28
I'm not looking for pity so I'll eliminate the heartjerking stories, curses and*wasted time and money*of this week trying to get the same temp reading on my lower and upper helm.*
I know that first, I need a dual station sending unit.* I replaced the old one with a new Sierra dual station sender which is supposed to be compatable with the two new teleflex temp guages. hooked everything up and still get very different readings (both lower than the actual water temp). The signal wire checked out from the sender to the lower helm, and also from the lower helm to the upper helm.* The power supply wire tested good and also the ground to both stations. I installed bus bars to eliminate the daisy chain connections.
Today I bench tested the sender and new gauges using 180 degree water, good leads, good battery, good ground to the sender and gauges--nothing to chance--except the two gauges still read low*and inconsistant (120 and 150 and couldn't get them to go higher by raising the water temp).
The guy where I bought the stuff said only the sender had to be dual station and the gauges only had to be compatable to the sender (which he said they were).* Another guru in this field of wonderment said the gauges also had to be "dual station".* I looked at an assortment of gauges on the internet and couldn't find one that said "for dual station only".
What am I not understanding, or doing wrong?
I really appreciate your expertise, having taken it to heart several times since wading into the new world of trawlers.
Thanks, Geezer
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I know that first, I need a dual station sending unit.* I replaced the old one with a new Sierra dual station sender which is supposed to be compatable with the two new teleflex temp guages. hooked everything up and still get very different readings (both lower than the actual water temp). The signal wire checked out from the sender to the lower helm, and also from the lower helm to the upper helm.* The power supply wire tested good and also the ground to both stations. I installed bus bars to eliminate the daisy chain connections.
Today I bench tested the sender and new gauges using 180 degree water, good leads, good battery, good ground to the sender and gauges--nothing to chance--except the two gauges still read low*and inconsistant (120 and 150 and couldn't get them to go higher by raising the water temp).
The guy where I bought the stuff said only the sender had to be dual station and the gauges only had to be compatable to the sender (which he said they were).* Another guru in this field of wonderment said the gauges also had to be "dual station".* I looked at an assortment of gauges on the internet and couldn't find one that said "for dual station only".
What am I not understanding, or doing wrong?
I really appreciate your expertise, having taken it to heart several times since wading into the new world of trawlers.
Thanks, Geezer
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