Mindray A9 Service Manual

7-13
Message
Priority
Cause
Solution
board (refer to 11.1.11).
Power Supply
Voltage Error
High
3.3 V, 5 V, 12 V
voltage error
1. Select Setup > Service > Data
Monitors > Power System and check
whether the voltages in the A/D channel fall
within the range specified in the A/D
channel table. For A8, it is normal if 24 VA
is 0. For A9, it is normal if 18 VA is 0. If
the auxiliary O2/air module or HFNC
module is not started, it is normal if 12 VB
is 0.
2. Open the service door (refer to 8.1.1),
disconnect the internal battery cable at the
lower left part on the rear of the cart.
Restart the machine 5 minutes after the
power board is powered off. Repeat step 1.
3. If the problem persists, replace the
DC-DC power board (refer to 11.1.11).
Low Battery
Voltage!
High
The battery voltage
is less than 10.6 V
for a consecutive of
5s.
1. If the AC mains is connected, but the
"Battery in Use" alarm is generated, clear
this alarm.
2. Select Setup > Service > Data
Monitors > Power System. Check whether
the battery voltage is within the normal
range (10.50–14.63 V) and whether T1 and
T2 of the battery temperature sensors are
within the range of 0°C–65°C.
3. If T1 and T2 exceed the normal range,
replace the battery assembly (refer to
11.1.9).
4. If the temperature sensors and battery
voltage are normal, upgrade the software
(refer to Chapter 6).
5. Check whether the battery charging
indicator beside the system switch is on. If
not, replace the DC-DC power board (refer
to 11.1.11).
6. If the battery charging indicator is on,
charge the battery for more than 20 minutes
and then repeat step 2 to check whether the
battery voltage increases or returns to the
normal range.
7. If the battery voltage does not increase
after charging, replace the battery assembly
(refer to 11.1.9).
System shutting
down, battery
depleted!
High
The battery voltage
is less than 10.2 V.
1. If the AC mains is connected, but the
"Battery in Use" alarm is generated, clear
this alarm.
2. Select Setup > Service > Data
Monitors > Power System. Check whether
the battery voltage is less than 10.2 V and
whether T1 and T2 of the battery
temperature sensors are within the range of

Mindray A9 Specifications

General

Type	Anesthesia Workstation
Integrated Gas Analysis	Yes
Backup Battery	Yes
Operating Temperature	10°C to 40°C
Storage Temperature	-20°C to 55°C
Battery Type	Lithium-ion
Ventilation Modes	Volume Control, Pressure Control, SIMV, Manual Ventilation
Display	Touchscreen
Patient Monitoring	ECG, SpO2, NIBP, EtCO2, Temperature
Connectivity	Ethernet, USB
Portability	Mobile (with wheels)
Battery Life	Minimum 90 minutes (typical)
Altitude	Up to 3000 meters
Power Supply	100-240 VAC, 50/60 Hz
Charging Time	Approximately 4 hours
Storage	Internal storage for patient data and system logs
Supported Languages	Multiple languages
Certifications	CE, FDA