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SunPower CryoTel Series User Manual

SunPower CryoTel Series
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CryoTel
®
Family
Free-Piston Stirling Cryocoolers
OPERATING INSTRUCTIONS
Model: CryoTel
®
GT
Controller: Gen II v1.0.0
Manual Version: 6
Effective: May, 2012
®
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SunPower CryoTel Series Specifications

General IconGeneral
BrandSunPower
ModelCryoTel Series
CategoryAccessories
LanguageEnglish

Summary

Intellectual Property Declaration

Introduction

CryoTel® GT Operating Instructions

Precautions (Dos and Don'ts)

Crucial safety guidelines and operational prohibitions to prevent damage and ensure correct usage.

Unpacking

Instructions for safely removing the cryocooler from its packaging and initial handling.

Mechanical Mounting

Details on how to physically attach and integrate the cryocooler into a system using mounting holes.

Attachment of Heat Load to Cold Finger

Guidance on connecting heat loads to the cold tip, including force and torque limits.

Cold End Vacuum

Importance of vacuum at the cold end for optimal performance and methods to achieve it.

Feedthroughs

Information about electrical feedthroughs, their handling, and connection of the power cable.

Temperature Sensor

How to mount and connect a temperature sensor for proper cooling control and feedback.

Heat Rejection

Water Jacket

Details on using the water jacket for heat rejection, including installation and water flow requirements.

Copper Fins

Guidelines for using copper fins with a fan for heat rejection, including airflow recommendations.

Conducting Solid

Considerations for using other solid conduction methods for heat rejection and consulting Sunpower.

CryoTel® Operation

Preparation

Steps to prepare the cryocooler and system before initiating operation, including vacuum setup.

Beginning Operation

Procedures for connecting power, verifying polarity, and starting the cryocooler for operation.

Operation Shutdown

Instructions for safely shutting down the cryocooler and allowing it to warm up.

LED and Digital Output

Error Summary

Serial Communications Command Reference

Serial Interface Specifications

Details of RS-232 communication parameters like baud rate, data bits, and stop bits.

Controller Connector Wiring Information

Pin numbering and function for I/O and RS-232 connections on the controller unit.

Basic Communication Functionality

Explains fundamental terminal emulator commands for controlling the cryocooler's basic functions.

Control Mode and Power Settings

Commands for setting control mode (PID), saving settings, and managing user-defined power output.

Soft Stop Functionality

Commands to display and set the soft stop mode for controlled shutdown of the cryocooler.

Soft Stop Status and Power Limits

Commands to check soft stop status and set user-defined maximum and minimum power limits for the cryocooler.

Power Display and Thermostat Control

Commands to display power readings and configure thermostat functionality for cryocooler shutdown.

Thermostat Status and Temperature Control Tuning

Commands for thermostat status, and adjusting proportional (KP) and integral (KI) constants for temperature control.

Temperature Band and Security Settings

Commands to set temperature band, user password, and lock/unlock controller parameters.

Controller Status and Configuration

Commands to display controller parameters, serial number, error codes, and reset to factory defaults.

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