Mindray A9 Operating Instructions

O
2
Sensor Calibration Operations
6 - 4 Operator’s Manual of Anesthesia System
6.3.1.2 Exit Standby mode
When the [Start Case] key is displayed on Soft key field of the Main Screen:
Touch the standby zone or select the [Start Case] soft key on the screen, and follow the on-screen
prompts to exit the standby mode.
When the [Start Case] key is not displayed on Soft key field of the Main Screen:
1. Set the Auto/Manual switch to the Manual position.
2. Touch the waveform zone on the screen or turn on Fresh Gas, or select the [Start Case] key,
and follow the on-screen prompts to exit standby mode.
6.3.2 Set Patient Information
See 4.2.1 (Pages 4-3) "Patient Information".
6.4 O
2
Sensor Calibration
If O
2
sensor calibration is needed, please see "O
2
Sensor Calibration" on Pages 9-4.
6.5 Set Fresh Gas
6.5.1 Set O
2
, N
2
O and Air Inputs
You can set the O
2
and balance gas through EFCS, or set the O
2
and air flows through BFCS.
The Security System in the equipment is intended to prevent delivering low-O
2
gas mixtures to
patients. N
2
O cannot be delivered without O
2
.
The equipment maintains a safe O
2
to N
2
O ratio by keeping the N
2
O flow in a proper ratio to the pre-
conditioned O
2
flow. N
2
O flow is subject to the limitation of O
2
flow to make sure that O
2
remains in a
safe ratio of not lower than 25%.
Auto cut-off of N
2
O:
When the O
2
flow rate is lower than 200 mL/min, N
2
O is automatically cut off to zero the N
2
O flow rate.
O
2
pressure loss alarm:
When the O
2
pressure is lower than 220 kPa (32 psi), the O
2
supply failure alarm is triggered.
O
2
ratio controller:
The O
2
ratio controller ensures that the O
2
concentration in the fresh gas is always not lower than
25% when the N
2
O valve is fully opened.
WARNING: If BFCS is used, make sure that both O
2
and air flow controllers are fully
closed at the beginning and the end of each case.
NOTE: The float flowmeter is calibrated based on 100% O
2
. For other gas, the
accuracy of the flowmeter may degrade.
NOTE: When checking the readings on the float flowmeter, keep your visual
angle at the same level of the float. The reading of the scale may vary
when viewed at a different angle.
NOTE: Before the operation, please confirm the fresh gas control mode is
consistent with your habit or preference.
6.5.2 Set Anesthetic Agent

Mindray A9 Specifications

General

Brand	Mindray
Model	A9
Category	Medical Equipment
Language	English