168 views
Sender unit for this pictured gauge Smiths BP2404-00C
$35
Smiths BP2404-00C - Oil pressure gauge 0-100 psi
This Sender Unit Part Smiths PT1811-10 Don't think has been used
PTR1811-10 Having a resister. Please read this that I found on the web making sure you can use it.
The PTR1811-10 Sender Unit costs between $150 and $175
Smiths BP2404-00C - Oil pressure gauge 0-100 psi
The original design had the oil pressure gauge/sender powered from the “B” connection because
back then the oil pressure senders were voltage independent bi-metallic switching types.
Such are NLA, these days all you can buy are resistive type senders, these are very effected by voltage
so, for consistent performance when using a resistive sender, the gauge
should be powered from the “I” connector. Note that the sender is drawn as a resistive type.
Powering the gauge/sender from the “I” connector would make the gauge consistent
however it will also reduce the indicated pressure, because voltage is lower,
B” voltage is typically 11-13 V, “I” voltage is 10 V. To resolve this you would need a
different sender or Marek’s widget. Either way, if it is a resistive type sender,
the voltage supply should be regulated.
Using S3 as example:
Original bimetallic switching type of sender was a Smiths Instruments PT1811-10
(has a double lug electrical connector in the middle). The Jaguar part number was
C31177. Now when you purchase a C31177 you will most likely be sent a PTR1811-10
(R = resistance, has a single lug electrical connector that is off-centre).
Despite the common Jaguar part number “PTR” senders have completely different
principle, performance and requirements compared to the original “PT” senders.
The “10” in the above sender designations signifies 100 psi, this is the pressure
that will cause your gauge to indicate full scale. The S3 gauge full scale is
80 psi therefore, with everything working as intended, when the oil pressure is
100 psi the gauge should read 80 psi. This is demonstrated by the following test results:
The two Smiths senders are 100 psi so when 90 psi is applied the S3 gauge indicates 75 psi.
The VDO sender is 80 psi, same as the gauge, so when 90 psi is applied the S3 gauge indicates 90 psi.
The above results were with the gauge connected to the “B” connector, voltage was
12.4 V. When swapped to the “I” connector (=10 V) the gauge indication reduced correspondingly,
i.e., with the Smiths senders, when 90 psi was applied the gauges displayed 75 psi when connected to
“B” and 55 psi when connected to “I”. This suggests that, for S3's with resistive senders supplied
from a regulated (10 V) supply the ideal Smiths sender might be a PTR1801-06, Jaguar part number C15474?
This sender unit has been listed as used but I don't believe it ever was.
I've had in storage since 1980
This Sender Unit Part Smiths PT1811-10 Don't think has been used
PTR1811-10 Having a resister. Please read this that I found on the web making sure you can use it.
The PTR1811-10 Sender Unit costs between $150 and $175
Smiths BP2404-00C - Oil pressure gauge 0-100 psi
The original design had the oil pressure gauge/sender powered from the “B” connection because
back then the oil pressure senders were voltage independent bi-metallic switching types.
Such are NLA, these days all you can buy are resistive type senders, these are very effected by voltage
so, for consistent performance when using a resistive sender, the gauge
should be powered from the “I” connector. Note that the sender is drawn as a resistive type.
Powering the gauge/sender from the “I” connector would make the gauge consistent
however it will also reduce the indicated pressure, because voltage is lower,
B” voltage is typically 11-13 V, “I” voltage is 10 V. To resolve this you would need a
different sender or Marek’s widget. Either way, if it is a resistive type sender,
the voltage supply should be regulated.
Using S3 as example:
Original bimetallic switching type of sender was a Smiths Instruments PT1811-10
(has a double lug electrical connector in the middle). The Jaguar part number was
C31177. Now when you purchase a C31177 you will most likely be sent a PTR1811-10
(R = resistance, has a single lug electrical connector that is off-centre).
Despite the common Jaguar part number “PTR” senders have completely different
principle, performance and requirements compared to the original “PT” senders.
The “10” in the above sender designations signifies 100 psi, this is the pressure
that will cause your gauge to indicate full scale. The S3 gauge full scale is
80 psi therefore, with everything working as intended, when the oil pressure is
100 psi the gauge should read 80 psi. This is demonstrated by the following test results:
The two Smiths senders are 100 psi so when 90 psi is applied the S3 gauge indicates 75 psi.
The VDO sender is 80 psi, same as the gauge, so when 90 psi is applied the S3 gauge indicates 90 psi.
The above results were with the gauge connected to the “B” connector, voltage was
12.4 V. When swapped to the “I” connector (=10 V) the gauge indication reduced correspondingly,
i.e., with the Smiths senders, when 90 psi was applied the gauges displayed 75 psi when connected to
“B” and 55 psi when connected to “I”. This suggests that, for S3's with resistive senders supplied
from a regulated (10 V) supply the ideal Smiths sender might be a PTR1801-06, Jaguar part number C15474?
This sender unit has been listed as used but I don't believe it ever was.
I've had in storage since 1980
- Date Listed:27/07/2023
- Last Edited:28/01/2024
- Condition:Used
- Toyota Repair Manual 4M EngineToyota Repair Manual For A 4M Engine. Excellent undamaged condition$40Moulden, NT•13w
- Paneltronic Premier Power Distribution Panel 3307Brand New Mustang Cruisers Paneltronic Premier Power Distribution Panel Part Number 3307 AC 12 Position w/ Dual Shore/ Gen. Mains and Meters Default.php?op=ProductSearch&item=3307 Completely pre-wired to reduce installation time • High accuracy rear mounted analog meters. Digital meters are optional • Over 2000 interchangeable function labels available • Panel face is 1/8” corrosion resistant aluminum coated with two-part polyurethane • LED Indicators provided on all Premier Line Panels • Hyd$800Moulden, NT•15w
- Jaguar XK 150 Tachometer TachometerJaguar XK150 Tachometer very nice condition The clock work ok$500Moulden, NT•18w
You don't have any recently viewed items
Any items you have viewed recently will be displayed here
•••• ••• 3434