CSZ EZT-570S, Руководство пользователя

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EZT-570S User Manual
6
1. Overview
This manual has been tailored to cover all of the specific features and options available on the EZT-
570S environmental chamber controller. Not all options and/or features may be available on your
particular chamber. It is highly recommended that you read this manual thoroughly and understand
all aspects of the EZT-570S controller prior to operating your chamber.
1.1 Safety Information
Note, caution and warning symbols that appear throughout this manual are to draw your attention to
important operational and/or safety information.
A “ NOTE ” marks a short message to alert you to an important detail.
A
“ CAUTION ” safety alert appears with information that is important for protecting your
equipment and performance.
A
“ WARNING ” safety alert appears with information that is important for protecting you,
others and equipment from damage. Pay very close attention to all warnings that apply to
your chamber.
1.1.1 Device Under Test (DUT) Safety Information
The environmental chamber is equipped with high heat limits and/or safety devices. These devices
are installed to protect the chamber from exceeding design limits. These devices remove power from
the chamber’s heaters only and DO NOT remove power from the device under test.
Provisions must be made by the end user to de-energize the tested device with the chamber in order
to prevent an over-temperature condition and subsequent damage to the chamber and/or device
under test. For this reason, the chamber is equipped with a DUT safety relay (24V AC/DC, 2A
maximum resistive load) that should be connected to the device’s power supply control circuit at a
minimum. This relay will open and de-energize the device under test whenever the chamber is not
operating (see Section 8.6.4.1 DUT Safety Relay Output Wiring).
Figure 1-1 DUT Safety Connections
Main Supply
DUT
safety
relay
Mechanical
Contactor
Fus
e
L1
L2
24V supply