Pyrometer

[ttikalsky]

Replaced the probe still no reading at the gauge, any suggestions. The
guage is an ISSPro pyrometer/turbo boost combination and the turbo
boost guage works.

Troy
1986 Newell

[Leroy Eckert]

When the problem happened in my coach I replaced the probe only to find that the
wire was not attached at the guage. Worked fine after the wire was attached.

Leroy Eckert
1990 WB-40
Niceville, FL.






----- Original Message -----
From: ttikalsky
To: WanderlodgeForum@yahoogroups.com
Sent: Monday, June 26, 2006 11:11 AM
Subject: [WanderlodgeForum] Pyrometer


Replaced the probe still no reading at the gauge, any suggestions. The
guage is an ISSPro pyrometer/turbo boost combination and the turbo
boost guage works.

Troy
1986 Newell





[Non-text portions of this message have been removed]

[ttikalsky]

Thanks Leroy. I will check the wires for continuity. I searched the
archives and there was mention of testing the guage posts for 4 ohms
without the wires, guess I will try this test also.

Troy


--- In WanderlodgeForum@yahoogroups.com, "Leroy Eckert"
wrote:
>
> When the problem happened in my coach I replaced the probe only to
find that the wire was not attached at the guage. Worked fine after
the wire was attached.
>
> Leroy Eckert
> 1990 WB-40
> Niceville, FL.
>
>
>
>
>
>
> ----- Original Message -----
> From: ttikalsky
> To: WanderlodgeForum@yahoogroups.com
> Sent: Monday, June 26, 2006 11:11 AM
> Subject: [WanderlodgeForum] Pyrometer
>
>
> Replaced the probe still no reading at the gauge, any suggestions. The
> guage is an ISSPro pyrometer/turbo boost combination and the turbo
> boost guage works.
>
> Troy
> 1986 Newell
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

[jim riordan]

I could use some help. I have ab '88 WLWB with a detroit diesel 8v92. the
pyrometer guage does not seem to be running at the correct temp. I got earl to
send me a new sending unit. The new sending unit has two wires on it and the
unit that is presently installed has only one. I was wondering wheather anyone
has any information on this.

Jim Riordan
'88 WLWB XXV
Stuart, Fl.


---------------------------------
Cheap Talk? Check out Yahoo! Messenger's low PC-to-Phone call rates.

[Non-text portions of this message have been removed]

[one_dusty_hoot]

Jim, A pyrometer is a thrermocouple that develops
millivolts which a meter indicates in temperature.
The reading is not absolute but imperical in that
is a referrence temperature reading unless the
connecting wires are taken into account in calibration.
There has to be a return path whether it be the
frame ground or by wire. Using a wire for a return
path would give greater accuracy to the reading.
Possible the reason for supplying a 2 wire instead
of one? At your meter find where one wire went to
ground, connect one here the other to the other side
of the meter. Polarity has to be observed, so it you
have connected backwards the meter should delfect
downscale, if so, reverse connections.

Maybe your original pyrometer is not bad, just a bad
ground? Run a wire from a good ground at the thermocouple
to the point mentioned above.

My best guess on the subject, maybe someone who has
changed one will jump in here.
bob janes, '87fc35, greenville, sc


--- In WanderlodgeForum@yahoogroups.com, jim riordan
wrote:
>
> I could use some help. I have ab '88 WLWB with a detroit diesel
8v92. the pyrometer guage does not seem to be running at the correct
temp. I got earl to send me a new sending unit. The new sending unit
has two wires on it and the unit that is presently installed has only
one. I was wondering wheather anyone has any information on this.
>
> Jim Riordan
> '88 WLWB XXV
> Stuart, Fl.
>
>
> ---------------------------------
> Cheap Talk? Check out Yahoo! Messenger's low PC-to-Phone call rates.
>
> [Non-text portions of this message have been removed]
>

[dspithaler@...]

Jim Two years ago I bought a new sending unit for the top of my radiator
to check for low fluids. I bought it from a local Blue Bird Dealer. My old
one only had one wire too. The new one had two wires which one was a ground.
The parts man said that the old one was grounded to the rad & I wouldn't need
to ground the new one. But he also said that wouldn't hurt to use the the
wire to ground it also. I used the ground wire as you can't have it grounded
to good.
Don
89 Sp 36'
Butler, PA Bob,

Thanks!

When I observe the sending unit that is installed now there is only one wire
that comes out of the unit. the replacement that I got from Earl has two.
Your point about a ground is a good point, i think probally that the ground is
already achived by it's mounting though.

Jim Riordan
'88 WLWB XXV
Stuart, fl

one_dusty_hoot <_brjanes@..._ (mailto:brjanes@...) > wrote:
Jim, A pyrometer is a thrermocouple that develops
millivolts which





[Non-text portions of this message have been removed]

[jim riordan]

Bob,

Thanks!

When I observe the sending unit that is installed now there is only one wire
that comes out of the unit. the replacement that I got from Earl has two. Your
point about a ground is a good point, i think probally that the ground is
already achived by it's mounting though.

Jim Riordan
'88 WLWB XXV
Stuart, fl

one_dusty_hoot wrote:
Jim, A pyrometer is a thrermocouple that develops
millivolts which a meter indicates in temperature.
The reading is not absolute but imperical in that
is a referrence temperature reading unless the
connecting wires are taken into account in calibration.
There has to be a return path whether it be the
frame ground or by wire. Using a wire for a return
path would give greater accuracy to the reading.
Possible the reason for supplying a 2 wire instead
of one? At your meter find where one wire went to
ground, connect one here the other to the other side
of the meter. Polarity has to be observed, so it you
have connected backwards the meter should delfect
downscale, if so, reverse connections.

Maybe your original pyrometer is not bad, just a bad
ground? Run a wire from a good ground at the thermocouple
to the point mentioned above.

My best guess on the subject, maybe someone who has
changed one will jump in here.
bob janes, '87fc35, greenville, sc

--- In WanderlodgeForum@yahoogroups.com, jim riordan
wrote:
>
> I could use some help. I have ab '88 WLWB with a detroit diesel
8v92. the pyrometer guage does not seem to be running at the correct
temp. I got earl to send me a new sending unit. The new sending unit
has two wires on it and the unit that is presently installed has only
one. I was wondering wheather anyone has any information on this.
>
> Jim Riordan
> '88 WLWB XXV
> Stuart, Fl.
>
>
> ---------------------------------
> Cheap Talk? Check out Yahoo! Messenger's low PC-to-Phone call rates.
>
> [Non-text portions of this message have been removed]
>






---------------------------------
Check out the all-new Yahoo! Mail beta - Fire up a more powerful email and get
things done faster.

[Non-text portions of this message have been removed]

[Wilhelmus Schreurs]

I have been trying to find some info on the pyrometer circuit. The question I have is:
Is the length of wire predetermined on this gauge?

Bill 84 FC 35 SB "$quanderlodge"
Terrace, B.C. Canada

---

Looking for the perfect gift? Give the gift of Flickr!

[Donald Watson]

Bill,

The wire length should not be predetermined as far as I know. The
thermocouple acts as a probe and produces a small signal measured in
millivolts, sometimes amplified depending on the pyrometer gauge circuitry.
Obviously, sound electrical connections are important.

Donn
76 FC 33
South Kingstown, RI


From: WanderlodgeForum@yahoogroups.com
[mailto:WanderlodgeForum@yahoogroups.com] On Behalf Of Wilhelmus Schreurs
Sent: Wednesday, February 04, 2009 11:57 AM
To: fc_wanderlodge@yahoogroups.com; wanderlodgeforum@yahoogroups.com
Subject: [WanderlodgeForum] Pyrometer

I have been trying to find some info on the pyrometer circuit. The question
I have is:
Is the length of wire predetermined on this gauge?

Bill 84 FC 35 SB "$quanderlodge"
Terrace, B.C. Canada

[Leroy Eckert]

I do not have the schematic of the circuit. I would bet the placement of the probe location was predetermined to fit the normal temperatures published in the manual. I would imagine the closer the probe is the turbo outlet the hotter the reading and visa versa. Leroy Eckert 1990 WB-40 Smoke N Mirrors Dahlonega, GA Royale Conversion --- On Wed, 2/4/09, Donald Watson wrote: From: Donald Watson Subject: RE: [WanderlodgeForum] Pyrometer To: WanderlodgeForum@yahoogroups.com Date: Wednesday, February 4, 2009, 5:01 PM Bill, The wire length should not be predetermined as far as I know. The thermocouple acts as a probe and produces a small signal measured in millivolts, sometimes amplified depending on the pyrometer gauge circuitry. Obviously, sound electrical connections are important. Donn 76 FC 33 South Kingstown, RI From: "WanderlodgeForum%40yahoogroups.com" [mailto:"WanderlodgeForum%40yahoogroups.com"] On Behalf Of Wilhelmus Schreurs Sent: Wednesday, February 04, 2009 11:57 AM To: "fc_wanderlodge%40yahoogroups.com"; "wanderlodgeforum%40yahoogroups.com" Subject: [WanderlodgeForum] Pyrometer I have been trying to find some info on the pyrometer circuit. The question I have is: Is the length of wire predetermined on this gauge? Bill 84 FC 35 SB "$quanderlodge" Terrace, B.C. Canada