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Owing to the thermal sensitivity of KPF, we have placed 36 high-precision LakeShore temperature sensors throughout the spectrometer to monitor temperature changes throughout the instrument. Diagrams and tables below indicated the placement of these sensors, as well as their connections to the associated LakeShore 224-12 controllerstemperature monitors.
Also included below is the list of our lower-precision LinkHub-E sensors, which are used to monitor less-critical temperatures such as within the electronics racks and around the Calibration Bench.
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Lakeshore Channel Mapping
The reader is directed to High Precision Temperature Sensors for details on the Lakeshore 224-12 monitors and cable harnesses details.
The connectors on the various Lakeshore cable harnesses are labelled 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.
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Connector Number | Lakeshore Channel | KTL Keyword |
|---|---|---|
1 | Green Lakeshore D2 | CRYOSTAT_G1 Within cryostat; likely on detector mounting plate to one side of CCD (opposite side to CRYOSTAT_G3) |
2 | Green Lakeshore D3 (not functioning) | CRYOSTAT_G2 Within cryostat; likely at the detector end of the cold strap |
3 | Green Lakeshore D4 | CRYOSTAT_G3 Within cryostat; likely on detector mounting plate to one side of CCD (opposite side to CRYOSTAT_G1) |
4 | Green Lakeshore D5 | Green_Camera_Echelle |
5 | Green Lakeshore C2 | Green_Camera_Top |
6 | Green Lakeshore C3 | Green_Camera_Bottom |
7 | Green Lakeshore C4 | Green_Camera_Collimator |
8 | Green Lakeshore C5 | Green_Grism_Top |
9 | Green Lakeshore A (not functioning) | SciSky_Scmblr_Chmbr_End |
10 | Green Lakeshore B | SciSky_Scmblr_Fiber_End |
11 | Green Lakeshore C1 | CalEM_Scmblr_Chmbr_End |
12 | Green Lakeshore D1 | CalEM_Scmblr_Fiber_End |
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Connector Number | Lakeshore Channel | KTL Keyword |
|---|---|---|
1 | Red Lakeshore D2 | CRYOSTAT_R1 Within cryostat; likely on detector mounting plate to one side of CCD (opposite side to CRYOSTAT_R3) |
2 | Red Lakeshore D3 (not functioning) | CRYOSTAT_R2 Within cryostat; likely at the detector end of the cold strap |
3 | Red Lakeshore D4 | CRYOSTAT_R3 Within cryostat; likely on detector mounting plate to one side of CCD (opposite side to CRYOSTAT_R1) |
4 | Red Lakeshore D5 | Red_Camera_Bottom |
5 | Red Lakeshore C2 | Red_Grism_Top |
6 | Red Lakeshore C3 | Red_Camera_Collimator |
7 | Red Lakeshore C4 | Red_Camera_Echelle |
8 | Red Lakeshore C5 | Red_Camera_Top |
9 | Red Lakeshore A | Green_LN2_Flange |
10 | Red Lakeshore B | Chamber_Ext_Bottom |
11 | Red Lakeshore C1 (not functioning) | Chamber_Ext_Top |
12 | Red Lakeshore D1 | Red_LN2_Flange |
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