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Water gauge not working

Printed From: myHanse.com
Category: Hints and Tips
Forum Name: 355
Forum Description: 355 Hints, Tips and News
URL: http://www.myhanse.com/forum_posts.asp?TID=8011
Printed Date: 15 August 2018 at 09:40
Software Version: Web Wiz Forums 11.04 - http://www.webwizforums.com


Topic: Water gauge not working
Posted By: Connan
Subject: Water gauge not working
Date Posted: 04 November 2013 at 07:34
Hi guys, apologies for all the enquiries. Little Honey has been very well behaved apart from this issue.

We've got the Philippi instrument panel TCM 1 & 2 model with Water and Diesel as well as Start and Service batteries on the display.
They all work well, except for the water display.
It's supposed to be 235L when full, but no matter how much water we use the level doesn't go down at all.
I checked the sensor connection, and even removed the sensor from the tank and cleaned it, but no improvement.

The diesel tank monitor is working and seems quite accurate.

Does anyone have any ideas?

cheers

Connan
2011 Hanse 355 #67
"Little Honey"Ouch




Replies:
Posted By: Fendant
Date Posted: 04 November 2013 at 09:13
Hi Connan,  I got the same issue with the water tank level sensor. I have the new (cheapo) Würth panel.
The digital display reads 100% for ever and then drops straight to 25%, which triggers off the alarm. The sensor is the cheapest one you can fit, it is essentially 3 mtal rods with different lengths, feeding a resistance value into the panle display.
 
I am thinking to fit a WEMA sensor next year.


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Frank


Posted By: Brufan
Date Posted: 04 November 2013 at 10:46
Philippi only provides display.  Gauges comes from another provider.
I had problems with the water gauge.  It needs regular cleaning and it is absolutely not accurate.
It cannot be accurate since it has only 3 or 4 levels.

I also had my display changed since fuel gaugewas stuck to 100%.  It is now better but not so accurate.


-------------
Bruno

hanse 355 - 57

S/Y Spicy Ginger

White hull, 2 cabins, Volvo D1-30, Selden rig, removable mainsheet track system (modifications done now), Simrad-Jefa autopilot.


Posted By: Wild
Date Posted: 04 November 2013 at 14:15
Connan
If I am right the water- and fuel sensors are original from BARKSDALE or WEMA (40$)but you can order then by PHILIPPI part nr   Water TGW ..... ( the tank dept you need) fuel TGT... ( the tank dept ) in combination with PHILIPPI TCM 1 display..
The TCM 2 display is working with 1 flowsensor and 2 TW ..... and is not installed by Hanse.
To check the sensors are working right, you take then out with the elect connetions on place and move the black plastic
ring up and down, every movement of 16 MM will give you and different % on the display if they are working right.You can also check the resistance range, she as to be between 5 and 180 Ohm when you move the black ring from bottom to top.


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Wild and Wet
Belgium
545e#268


Posted By: Mark&Catherine
Date Posted: 04 November 2013 at 14:56
this is interesting, as my diesel sensor doesn't work.  Il ltry too.  Is there a way of calibrating the new panel, or is it usually the sensor that doesn't work

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385 ubulukutu sail number GBR 3350L in Turkey and Greece with Mark and Catherine


Posted By: Connan
Date Posted: 05 November 2013 at 02:29
Thanks guys, it's a bit of a mystery.
Frank, mine is the same - it has four stainless steel rods of different lengths, but I can't find the reference online at Barksdale or Wema for what model it is.
I'm more than happy to replace it with something better, but I just want to be sure it's not some kind of electrical fault on the way to the sensor.

Before I replace the sensor outright does anyone know how you'd test this one?

We're keen to go away for a week or two in December and the water level would be really handy to keep an eye on.

cheers

Connan


Posted By: Wild
Date Posted: 05 November 2013 at 09:34
Franck
Sorry for you that Hanse change the sensors brand.
To test your sensor in combination with Philippi TCM 1 display you have to measure the resitance ,he should change every time the next rode make contact with the water .
I 'm almost certain you can change your sensor with the one we have from PHILIPPI type TGW.... (org brand WEMA I think) if you have the PHILIPPI TCM 1 display .

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Wild and Wet
Belgium
545e#268


Posted By: Wild
Date Posted: 05 November 2013 at 10:00
Marc,
The PHILIPPI TCM in combination with the TGW sensor dont need calibration if your fueltank is rectangular.
You just need the correct lengte of the sensor in combination with the depht of the fueltank.
In case of a non rectangular tank you can do a calibration.

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Wild and Wet
Belgium
545e#268


Posted By: CharlesP
Date Posted: 06 November 2013 at 11:14
We have the four rod sensor in our water tank. It was changed once under warranty, but the new sensor has the same faulty reading under certain conditions. When the tank is full, the sensor operates correctly and displays full with all five divisions on the gauge illuminated. When water is used, the sensor continues to work correctly provided the tank water is "calm". However, if the water becomes agitated such as when at sea and even though it later becomes calm in the marina, the full indication is illuminated. This seems to be because water droplets become trapped by the rods at the top and so the resistance is false on the short rod. As the water level drops further, my gauge illuminates say three divisions as well as the fifth full division so it then becomes obvious to me that we have used two divisions of water, because the fourth division is not illuminated. I can live with this.

I wonder whether on some gauges the incorrect reading from the short rod overrides the reading from other rods. Fortunately, on my gauge it appears that each rod is linked to a different illuminated division so that the falsely illuminated full division can be ignored when the next division down is not illuminated.

Charles

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'MERIDIAN LADY'

320 Nr 536 2010

Medway


Posted By: Fendant
Date Posted: 06 November 2013 at 13:34

I checked the specs for the different sensors:

 
a) The European system sensors give a signal 0 - 190 Ohm ( this is what I assume has been installed by Hanse  0 Ohm = empty / 190 Ohm = full
 
b) The US system sensors give a signal 240 - 30 Ohm, just the other way around:
240 Ohm = empty / 30 Ohm= full
 
c) The Ultrasonic sensors ( Philippi, Germany ) give a signal 4 - 20 mA.
 
Can anybody confirm that the 3 rod sensor is of type A? 
In this case a replacement by a Phillip tpye TGW sensor or a Wema S5 / S3 should be straightforward.
 
 


-------------
Frank


Posted By: Fendant
Date Posted: 06 November 2013 at 14:43
I think that I have found the manufacturer, it seems to be CBE:
 
http://www.ebay.co.uk/itm/FRESH-WASTE-WATER-LEVEL-INDICATOR-KIT-MOTORHOME-BOAT-HORSEBOX-CBE-212898-/121206703779#ht_2288wt_1141" rel="nofollow - http://www.ebay.co.uk/itm/FRESH-WASTE-WATER-LEVEL-INDICATOR-KIT-MOTORHOME-BOAT-HORSEBOX-CBE-212898-/121206703779#ht_2288wt_1141


-------------
Frank


Posted By: Connan
Date Posted: 07 November 2013 at 04:34
Thanks everyone for the assistance. I discovered today that the water tank was over-filling, so now the most likely explanation is wet wiring and short circuiting. I pulled the sensor out again and tried it in multiple water levels and it still reads full.
On the side it says: Calira
I didn't want to do it but had to call the electrician - I've tried everything I can.

On the bright side I've discovered all manner of new storage spaces I didn't know existed.
Smile
cheers
Connan


Posted By: CharlesP
Date Posted: 07 November 2013 at 10:20
My post above refers to the Calira sensor which I also have. It seems really well sealed. It will be interesting to hear what your electrician says. I wonder whether it may be short circuiting between sensor rods due to water droplets or condensation staying on the surface of the plastic where the rods enter. I found the same problem in two new sensors.

Charles

-------------
'MERIDIAN LADY'

320 Nr 536 2010

Medway


Posted By: Fendant
Date Posted: 07 November 2013 at 12:40
I think the nagging question for us all is which sensor ( Wema, Philippi, ...... ) would be drop in interchangeable with the Calira sensor which apparently gives a lot of headache if you browse thorugh the camper and mobilhome forums.
Any experiences ??

-------------
Frank


Posted By: Connan
Date Posted: 19 November 2013 at 00:46
The great news is the water sensor is working again. Smile
I got a marine electrician to take a look and he had no luck, but suggested I order a replacement display unit from phillipi.
I was in the process of ordering one, when a helpful chap at phillipi asked me to double check the tank type value I had input. It had to be set to 40 to match the prong style sensor I had.
Now it's working perfectly. Especially after I cleaned the gunk of the stainless steel prongs!
Moral of the story - don't let the kids poke around with the settings on your gauges.
And learn German, so you can understand the obscure manuals.Confused
Thanks everyone for your collective wisdom.
cheers
Connan


Posted By: iemand
Date Posted: 19 November 2013 at 07:51
If somebody needs to replace his calira sensor, I could sell mine which I replaced a couple of years ago...

BR Thomas


-------------
Hanse 312 MJ 2004 - Hanse 370e MJ 2007


Posted By: CharlesP
Date Posted: 19 November 2013 at 09:40
What did you replace it with?

Charles

-------------
'MERIDIAN LADY'

320 Nr 536 2010

Medway


Posted By: Fendant
Date Posted: 19 November 2013 at 11:41
I think this is the nagging question for all of us: Which make and model is drop in interchangeable ?

-------------
Frank


Posted By: iemand
Date Posted: 19 November 2013 at 20:45
I changed not just the sensor but the whole unit for phillipi digital gauges. A lot of work but in the end nice.




-------------
Hanse 312 MJ 2004 - Hanse 370e MJ 2007


Posted By: iemand
Date Posted: 19 November 2013 at 20:47
you can switch from battery to tank level as well...

-------------
Hanse 312 MJ 2004 - Hanse 370e MJ 2007


Posted By: Connan
Date Posted: 19 November 2013 at 23:45
That looks awesome.



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