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Vacuum Gauge Identification Resistors (view source)
Revision as of 13:17, 20 December 2024
, 13:17, 20 December 2024start of a summary of gauge identification resistors.
RJ45 connected vacuum gange heads, such as those from [[BOC Edwards]] use a fixed resistor of a certain value to help the gauge controller identify the head used and adjust the display range and voltage pressure curve used. Here presented, is a list of these values and the gauge head that they represent. Note that there are overlaps between manufacturers.
These gauges typically display their signal as 2V for minimum and 10V for maximum pressure.
= BOC Edwards =
{| class="wikitable" style="margin:auto"
|+ RJ45 Heads
|-
! Head Name !! Type !! Range !! ID Resistance
|-
| APG-L || Pirani || || 33 K ohm ±2%
|-
| APG-M / APG-MP || Pirani || || 27 K ohm ±2%
|-
|}
[[Category:Cross Refference]]
These gauges typically display their signal as 2V for minimum and 10V for maximum pressure.
= BOC Edwards =
{| class="wikitable" style="margin:auto"
|+ RJ45 Heads
|-
! Head Name !! Type !! Range !! ID Resistance
|-
| APG-L || Pirani || || 33 K ohm ±2%
|-
| APG-M / APG-MP || Pirani || || 27 K ohm ±2%
|-
|}
[[Category:Cross Refference]]