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We had a club member who put the BW35 automatic from a Triumph 2000 into =
a TR4. His readings were similar to yours.
=20
From: Triumphs <triumphs-bounces@autox.team.net> On Behalf Of Sujit Roy
Sent: Saturday, August 15, 2020 1:25 PM
To: DAVID MASSEY <Dave1massey@cs.com>
Cc: Triumphs <triumphs@autox.team.net>
Subject: Re: [TR] Thermal Transmitter Temperature Sender help
=20
Thanks. I have spare parts and I plan to create a setup on a bench. I =
have some documents on how to check the gauge and voltage stabilizer and =
noe some resistance no. If my set up models that of my stag. I will have =
some sanity. My stag has a 3 speed BW35. Box. At around 70 mph the =
engine speed is close to 4k rpm. Did the tr7 use a bw35. If so are these =
numbers similar
=20
On Sat, Aug 15, 2020, 10:35 AM DAVID MASSEY <dave1massey@cs.com =
That could be problematic. If the Stag gauges work like those in the =
TR4-6 there is a voltage stabilizer that maintains a constant average 10 =
volts on the gauge. But the original stabilizer is an early form of a =
PWM regulator. The contacts will alternately apply full battery volts =
and zero on a proportional basis such that the average is 10 volts. And =
the switching frequency is about one hertz. The gauges react slowly =
enough that they average it out just fine but if you put a voltmeter on =
it you will see the voltage switching on and off fast enough that your =
meter won't have time to settle out and give a meaningful reading. =20
=20
There are after-market stabilizers available that use a solid-state IC =
voltage regulator providing a constant 10 volts. If you have one of =
those you could get a reliable reading. But that is if you have one of =
those.
=20
All that said, if I had a resistance value for the gauge I could =
calculate what you would get if an IC stabilizer was installed.
=20
Dave=20
=20
=20
-----Original Message-----
Sent: Sat, Aug 15, 2020 11:30 am
Subject: Re: [TR] Thermal Transmitter Temperature Sender help
Follow up question. Does anyone have data showing what the voltage at =
the gauge should be to resistance values.
=20
On Fri, Aug 14, 2020, 12:15 PM DAVID MASSEY <dave1massey@cs.com =
Here are some data for the TR8. This might be close enough for the =
stag:
Temp C Temp F Orig ohms GTR110 ohms
50 122 332 290
55 131 275 242
60 140 227 197
65 149 193 169
70 158 158 142
75 167 134 120
80 176 114 102
85 185 99 91
90 194 85 77
95 203 74 65
100 212 60 55
105 221 51 48
110 230 44 41
115 239 37 37
120 248 32 31
125 257 28 28
130 266 24 25
135 275 21 22
=20
=20
If you have a source of resistors in this value range you can connect =
them in lieu of the sensor and check the reading to see if it is close.
=20
Dave=20
=20
=20
-----Original Message-----
Sent: Fri, Aug 14, 2020 11:31 am
Subject: [TR] Thermal Transmitter Temperature Sender help
I'm going to try and figure out if my Stag is running hot. The gauge =
always reads high =20
=20
I found a note on another forum on how to test the voltage regulator, =
and another forum how to calibrate the gauge.
=20
I'm trying to figure out how to test the Thermal Transmitter Temperature =
Sender. Does anyone have any data on how the resistance changes with =
temperature?
=20
Since most Triumph around the 70's used Smith gauges, I'm assuming the =
data for the Thermal Transmitter Temperature Sender would be the same.
=20
Regards, Sujit
=20
--=20
Sujit Roy
Cupertino, California
https://triumphstagblog.wordpress.com/
Archive: http://www.team.net/pipermail/triumphs =
<http://www.team.net/pipermail/triumphs> http://www.team.net/archive
http://autox.team.net/mailman/options/triumphs/dave1massey@cs.com
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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>We had a =
club member who put the BW35 automatic from a Triumph 2000 into a TR4. =
His readings were similar to yours.<o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From:</b> Triumphs =
<triumphs-bounces@autox.team.net> <b>On Behalf Of </b>Sujit =
Roy<br><b>Sent:</b> Saturday, August 15, 2020 1:25 PM<br><b>To:</b> =
DAVID MASSEY <Dave1massey@cs.com><br><b>Cc:</b> Triumphs =
<triumphs@autox.team.net><br><b>Subject:</b> Re: [TR] Thermal =
Transmitter Temperature Sender help<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><p class=3DMsoNormal>Thanks. =
I have spare parts and I plan to create a setup on a bench. I have some =
documents on how to check the gauge and voltage stabilizer and noe some =
resistance no. If my set up models that of my stag. I will have some =
sanity. My stag has a 3 speed BW35. Box. At around 70 mph =
the engine speed is close to 4k rpm. Did the tr7 use a bw35. If so are =
these numbers similar<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><div><p class=3DMsoNormal>On =
Sat, Aug 15, 2020, 10:35 AM DAVID MASSEY <<a =
href=3D"mailto:dave1massey@cs.com";>dave1massey@cs.com</a>> =
wrote:<o:p></o:p></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>Tha=
t could be problematic. If the Stag gauges work like those in the =
TR4-6 there is a voltage stabilizer that maintains a constant average 10 =
volts on the gauge. But the original stabilizer is an early form =
of a PWM regulator. The contacts will alternately apply full =
battery volts and zero on a proportional basis such that the average is =
10 volts. And the switching frequency is about one hertz. =
The gauges react slowly enough that they average it out just fine but if =
you put a voltmeter on it you will see the voltage switching on and off =
fast enough that your meter won't have time to settle out and give a =
meaningful reading. <o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>The=
re are after-market stabilizers available that use a solid-state IC =
voltage regulator providing a constant 10 volts. If you have one =
of those you could get a reliable reading. But that is if you have =
one of those.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>All=
that said, if I had a resistance value for the gauge I could calculate =
what you would get if an IC stabilizer was =
installed.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:13.5pt;font-family:"Arial",sans-serif;color:black'>Dav=
e </span><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>---=
--Original Message-----<br>From: Sujit Roy <<a =
href=3D"mailto:triumphstag@gmail.com"; =
target=3D"_blank">triumphstag@gmail.com</a>><br>To: DAVID MASSEY =
<<a href=3D"mailto:Dave1massey@cs.com"; =
target=3D"_blank">Dave1massey@cs.com</a>><br>Cc: Triumphs <<a =
href=3D"mailto:triumphs@autox.team.net"; =
target=3D"_blank">triumphs@autox.team.net</a>><br>Sent: Sat, Aug 15, =
2020 11:30 am<br>Subject: Re: [TR] Thermal Transmitter Temperature =
Sender help<o:p></o:p></span></p><div =
id=3D"m_4638235716154564889yiv4365019461"><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>Fol=
low up question. Does anyone have data showing what the voltage at the =
gauge should be to resistance =
values.<o:p></o:p></span></p></div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p><div =
id=3D"m_4638235716154564889yiv4365019461yqt12730"><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>On =
Fri, Aug 14, 2020, 12:15 PM DAVID MASSEY <<a =
href=3D"mailto:dave1massey@cs.com"; =
target=3D"_blank">dave1massey@cs.com</a>> =
wrote:<o:p></o:p></span></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>Her=
e are some data for the TR8. This might be close enough for the =
stag:<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>Tem=
p C Temp F Orig ohms =
GTR110 ohms<br>50 =
122 =
332 =
290<br>55 =
131 =
275 =
242<br>60 =
140 =
227 =
197<br>65 =
149 =
193 =
169<br>70 =
158 =
158 =
142<br>75 =
167 =
134 =
120<br>80 =
176 =
114 =
102<br>85 =
185 =
99 =
91<br>90 =
194 =
85 =
77<br>95 =
203 =
74 =
65<br>100 =
212 =
60 =
55<br>105 =
221 =
51 =
48<br>110 =
230 =
44 =
41<br>115 =
239 =
37 =
37<br>120 =
248 =
32 =
31<br>125 =
257 =
28 =
28<br>130 =
266 =
24 =
25<br>135 =
275 =
21 =
22<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>If =
you have a source of resistors in this value range you can connect them =
in lieu of the sensor and check the reading to see if it is =
close.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:13.5pt;font-family:"Arial",sans-serif;color:black'>Dav=
e </span><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>---=
--Original Message-----<br>From: Sujit Roy <<a =
href=3D"mailto:triumphstag@gmail.com"; =
target=3D"_blank">triumphstag@gmail.com</a>><br>To: Triumphs <<a =
href=3D"mailto:triumphs@autox.team.net"; =
target=3D"_blank">triumphs@autox.team.net</a>><br>Sent: Fri, Aug 14, =
2020 11:31 am<br>Subject: [TR] Thermal Transmitter Temperature Sender =
help<o:p></o:p></span></p><div =
id=3D"m_4638235716154564889yiv4365019461m_-1604197066133898725yiv74131543=
17"><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>I'm=
going to try and figure out if my Stag is running hot. The gauge =
always reads high <o:p></o:p></span></p><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>I =
found a note on another forum on how to test the voltage regulator, =
and another forum how to calibrate =
the gauge.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>I'm=
trying to figure out how to test the Thermal Transmitter =
Temperature Sender. Does anyone have any data on how the =
resistance changes with =
temperature?<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>Sin=
ce most Triumph around the 70's used Smith gauges, I'm assuming the =
data for the Thermal Transmitter Temperature Sender would be the =
same.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>Reg=
ards, Sujit<br clear=3Dall><o:p></o:p></span></p><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>-- =
<o:p></o:p></span></p><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>Suj=
it Roy<br>Cupertino, California<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><br=
><a href=3D"https://triumphstagblog.wordpress.com/"; =
target=3D"_blank">https://triumphstagblog.wordpress.com/</a><o:p></o:p></=
span></p></div></div></div></div></div></div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>** =
<a href=3D"mailto:triumphs@autox.team.net"; =
target=3D"_blank">triumphs@autox.team.net</a> **<br><br>Donate: <a =
href=3D"http://www.team.net/donate.html"; =
target=3D"_blank">http://www.team.net/donate.html</a><br>Archive: <a =
href=3D"http://www.team.net/pipermail/triumphs"; =
target=3D"_blank">http://www.team.net/pipermail/triumphs </a><a =
href=3D"http://www.team.net/archive"; =
target=3D"_blank">http://www.team.net/archive</a><br><br>Unsubscribe/Mana=
ge: <a =
href=3D"http://autox.team.net/mailman/options/triumphs/dave1massey@cs.com=
" =
target=3D"_blank">http://autox.team.net/mailman/options/triumphs/dave1mas=
sey@cs.com</a><o:p></o:p></span></p></div></div></blockquote></div></div>=
</div></div></div></div></blockquote></div></div></body></html>
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