Mindray A7 Operating Instructions

A7™ Operating Instructions 046-004667-00 3 - 9
System Interface Fresh Gas Flow Display
3.3 Fresh Gas Flow Display
3.3.1 Electronic Flow Control System
The A7 System flowmeter displays real-time flowmeter levels for O
2
and balance gase (see FIGURE 3-
14). Balance gas can be set to either AIR or N
2
O.
The flowmeter numerics display a precision to two decimal digits for flows < 1 L/min and one
decimal digit for flows ≥ 1 L/min.
The A7 System flowmeter is electronically controlled by the Electronic Flow Control System
(hereinafter referred to as EFCS).
EFCS has two control modes: Total Flow and Direct Flow. To set the control mode,
1. Select Setup softkey > General tab on the main screen.
2. Set the Fresh Gas Control to Total Flow or Direct Flow.
3. Select the Accept button to confirm the change, or select the Cancel button to discard the
change.
Or (software bundle version 02.09.00 and later)
1. Select the button in the Fresh Gas Flow area to open the Total Flow Control menu or the
Direct Flow Control menu.
2. Set the Fresh Gas Control to Total Flow or Direct Flow.
3. Select the Accept button to confirm the change, or select the Cancel button to discard the
change.
3.3.1.1 Total Flow Control Mode
FIGURE 3-14 shows the electronic flow control system in total flow control mode.
FIGURE 3-14 Electronic Flow Control System in Total Flow Control Mode
Select O
2
concentration or Total Flow to open Total Flow Control menu (see FIGURE 3-15).
Fresh Gas Flow Display
Displays O
2
flow
Total flow of O
2
and balance gas
O
2
concentration
Flow indicator,
showing the
relationship
between your set
flow value and the
optimal value.
Displays the real-
time agent used
per hour and the
instantaneous
agent cost per
hour.
Displays flow of
balance gas

Mindray A7 Specifications

General

Brand	Mindray
Model	A7
Category	Medical Equipment
Language	English