Sheldon SHEL LAB SVAC1, Инструкция по установке и эксплуатации

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INTRODUCTION
R
EFERENCE
S
ENSOR
D
EVICE
Must be purchased separately
A reference sensor device is required for calibrating the unit temperature display.
Reference devices must meet the following standards:
•
Accurate to at least 0.1°C
The device should be regularly calibrated, preferably by a third party.
Temperature Probes
Use a digital device with wire thermocouple probes that can be introduced into the unit chamber
through the unit access port. Select a probe suitable for the application temperature you will be
calibrating at.
A vacuum-rated feedthrough baseplate is required for introducing the probe through the KF-25 port.
Why Probes?
Reference readings taken outside the chamber using wire temperature probes avoid chamber door
openings. Openings disrupt the chamber temperature. Each disruption requires a minimum 1-hour wait
to allow the chamber to re-stabilize before continuing.
No Alcohol or Mercury Thermometers
Alcohol thermometers do not have sufficient accuracy to conduct accurate temperature calibrations.
Never place a mercury thermometer in the unit chamber. Always use thermocouple probes.
Reference
Device