Azbil Micro Flow MQV0005, Руководство пользователя

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1-2
Chapter 1. INTRODUCTION
•
User-friendly
Runs on a general-purpose 24 V DC power supply, and the MQV 's
internal power circuit and input/output circuits are isolated. When
multiple MQV are driven through the analog inputs and outputs,
as with a PLC, they can all use a common power supply even if the
PLC's analog modules are not isolated by channel. Therefore, even
without individual power supplies for each device, problems with
one circuit do not affect adjacent ones. Also provided is a handy AC
adapter (sold separately) for easy use in the laboratory.
•
Display direction can be changed (models with integrated display only)
The direction of the display can be rotated 180° to match the direc-
tion of the gas flow, in case it was mounted the other way.
•
Improved design (models with separate display only)
A front cover (sold separately) hides the mounting screws of the
separate display on the panel surface and improves the appearance.
•
Various additional functions
The functions listed below are all standard.
„
Functions
All
MQV
models have the functions described below. For function
setup, Chapter 5. ADVANCED OPERATION
•
Multi-setup (function setup
C-04
)
Quickly switch to one of eight preset flow set value by key opera-
tion or external input. If “Switching of SP No.” is set to external
3-way switching input, up to three set values can be switched.
•
Gas type switching (function setup
C-18
,
C-26
)
The gas type to be used can be selected from the standard compat-
ible gases by key operation. Additionally, two kinds of gas type set-
tings can be changed by external contact input.
•
Gas type setup (function setup
C-18
)
The user can set gas type conversion factors for gases other than
the standard compatible gases, and for mixed gases.
•
Control flow rate range setting (function setup
C-24
,
C-25
)
The control flow range can be changed to the desired range (10 to
100 % of the flow range at factory setting) in units of 1 % FS. The
setup and display resolution levels can be improved by reducing
the control flow range. Additionally, two kinds of control flow
ranges can be switched through external contact input.