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Table of Contents:

Introduction

Three Lakeshore controllers are used for high precision temperature telemetry within KPF.

Relevant Devices

Description

Qty

Source

Part Number

Green Lakeshore

1

Lakeshore

224-12

Red Lakeshore

1

Lakeshore

224-12

Spectrometer Lakeshore

1

Lakeshore

224-12

RTD Sensors

36

Honeywell

Honeywell PN: HRTS-5760-B-U-1-12
DigiKey PN: 480-6183-ND

NOTE: we have three identical devices. The only difference in the control software between the two will be the look-up table which maps the Lakeshore sensor input names (i.e. ‘C1’) to physical sensor locations within KPF (i.e. ‘Echelle’).

Relevant Functional Block Diagram

The three Lakeshores will be set up the same, with sensors placed within (or around) the vacuum chamber.

Installation Details and Sensor Locations

Description

File

Notes

1

Installation details and sensor locations

Thermal Sensor Locations (Spectrometer and Hallway)

2

Interconnection Diagram
(for Lakeshore sensors within the vacuum chamber)

3

Sensor cable harness fabrication details

Relevant Datasheets & Manuals

Description

File

Source

1

Device Manual

https://www.lakeshore.com/products/categories/downloads/temperature-products/cryogenic-temperature-monitors/model-224-temperature-monitor

2

Rack Mounting Instructions

3

RTD Sensor Datasheet

Covers many sensors, the part number of the sensor we used is: HRTS-5760-B-U-1-12.

DigiKey download.

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