1.Technical specification

3.1 Working mode: Circulation close, half-close, half-open.

3.2 Gas requirement: Medical O₂ and Medical N₂O whose pressure is 280kPa ～ 600kPa.

3.3 Pressure value error does not exceeds ±4% of full calibration.

3.4 O₂ and N₂O are both equipped with specified pressure regulators which have safety valve. The exhaust pressure of the safety valve should not be more than twice of the rated input pressure.

3.5 When the oxygen gas source pressure that goes to the anesthesia machine reaches at least 200kPa ± 50kPa, alarm will appear sound, which will last more than 7s.

3.6 The flow meter range of O_{2 ,} N₂O is:0.1 L／min ～ 10 L／min

3.7 Flow meter is equipped with O_2—N₂O ratio controlling device to make sure the Oxygen concentration is no less than 25%

3.8 Fast Oxygen-supply flow rate:25 L／min ～ 75 L／min

3.9 Anesthetic gas concentration adjustment range of evaporator:0％ ～ 5％, concentration error range is between -20% and +30%, and cannot exceed -5% to +7.5% of the maximum scale(subject to greater number).

3.10 Anesthesia ventilator

3.10.1 Ventilation mode: IPPV, SIPPV, SIMV, MANUAL.

3.10.2 Respiratory frequency: 2 times/min, ~ 99 times/min, permissible error: ± 15%.

3.10.3 Intermittent mandatory ventilation frequency: 2 times/min to 20 times / min, permissible error: ±15%.

3.10.4 I: E is 2:1～1:8, permissible error :15%

3.10.5 Tidal volume adjustment range: 50 ml ~ 1500 ml, permissible error: 100 ml and below ± 20 ml, the remaining ± 15%.

3.10.6 Tidal volume indication range: 20 ml ~ 1500 ml, permissible error : 100 ml and ± below 20 ml, the remaining ± 15%.

3.10.7 Inspiratory trigger pressure adjustment range: －10cmH₂O ～20cmH₂O , permissible error range:±2cmH₂O or±10%(subject to greater number).

3.10.8 Positive End-Expiratory Pressure:2～20cmH₂O ,permissible error:±2cmH₂O 或±20% (subject to greater number).0 represents closing this function.

3.10.9 Sign: each 100 breath has a deep breath, and the inspiratory time is 1.5 times of the set value. Permissible error range: ±15%.

3.10.10 Maximum security pressure: ≤ 12.5kPa.

3.10.11 Pressure limit: 10～60cmH₂O , and permissible error range: ±2cmH₂O or±10%(subject to greater number).

3.10.12 Airway pressure alarm: upper airway pressure limit alarm value adjustment range is 5～60cmH2O , permissible error:±2cmH₂O , or ± 20%(subject to greater number), when the airway pressure value reaches alarm level, it will give an alarm immediately ; and low airway pressure limit alarm value range: 0～50cmH2O , permissible error range:±2cmH₂O , or ± 20% (subject to greater number)

3.10.13 Ventilation alarm: upper ventilation limit alarm value range: 1～20L/min, the permissible error range: ± 20%; low ventilation limit alarm value adjustment range:0～19L/min, permissible error range: ± 20%.

3.10.14 Tidal volume alarm:upper tidal volume limit alarm value adjustment range100-1500ml, permissible error range: ±20%; low tidal volume limit alarm value adjustment range 0-1400ml, permissible error range±20%.

3.10.15 Oxygen concentration alarm: upper oxygen concentration limit alarm value adjustment range 21%~99%, permissible error range: ±5%；low oxygen concentration limit alarm value adjustment range: 18%~80%, permissible error range: ±5%.

3.10.16 Suffocation alarm: The alarm started in 15s ± 5s in the event of pressure consistently higher than 10 cmH₂O, and tidal volume lower than 120m.

3.10.17 Tube drop alarm: The alarm started in 15s ± 5s in the event of pressure consistently lower than 2cmH₂O,

3.10.18 Continuous high pressure alarm: When the anesthesia breathing circuit pressure continues to be higher than25cmH2O , and it will send a high priority alarm always in 15+1s..

3.10.19 Low-battery alarm (if equipped with battery) : When the standby power is lower than DC14 V, it will send an alarm, permissible error range: ± 0.5 V.

3.10.20 Emergency battery working warning (if equipped with battery): After AC and DC power are off, the emergency battery can keep the ventilator working for no less than 30 min, accompanied with alarm sound

3.10.21 Visual signal alarm: alarm signal stays uninterrupted if alarm state is not removed, the muffling time of sound signal is less than120 s.

3.10.22 Monitoring range:

Airway pressure monitoring range: -20～80cmH2O, permissible error range: ±2cmH2O, or ±10% (subject to greater number)

Ventilation volume monitoring: 0~30L/min, error allowed: ±15%.

Oxygen concentration monitoring range: 15%～100%, permissible error range: ±(2.5%volume percentage + gas concentration2.5 %)

3.10.23 The noise of anesthesia machine under normal working condition is not greater than 65dB(A)

2. Size and Weight

2.1 Size :

880 mm×620 mm×1420 mm

2.2 Weight:

125 kg

3. Installation and adjustment

3.1 Preparation before installation

1. Confirm the anesthesia machine and its attachments are intact, and the products in packaging container are the same as required in the shipping list. You’d better keep the packaging container and shockproof gasket well for next transportation.

2. ventilator based on the Users’ Manual.

3.Check t Be familiar with the working principle, structure features and control panel of anesthesia machine and he gas source of medical compressed O₂ and N₂O to confirm that the pressure meets the requirement of 280～600kPa. If it supplies gas with cylinder, you should also check whether the gas in it is sufficient, the decompressor performance is good or not, installation is right or not.

4.Check single-phase AC power supply of anesthesia machine to confirm the voltage has met the requirements of AC 220 V ,50Hz and have good protective grounding. Also you should confirm that the emergency storage battery has been well connected.

3.2 Installation of Anesthesia machine

1. Installation of truckles: Two truckles with lockup device should be installed in the front of machine, and two without lockup device installed at the back.
2. Push the machine framework to expected position and step the lockup device on truckles to make it stable.
3. Install the evaporator to its own bracket on the anesthesia machine and fix the evaporator by fastening the hexagon screw.
4. Fix the integrated anesthesia breathing circuit on the bracket which lies in the left side by support arm ( in the same time, the connector of pressure signal, fresh gas output and fast oxygen supply have been connected well). Then connect the gas storage bag.
5. The oxygen concentration probe should be installed on the oxygen concentration monitoring probe interface in integrated anesthesia breathing circuit, (see Figure 2), and then connect the oxygen concentration sampling signal line on the left side of anesthesia machine to the oxygen concentration probe.
6. Flow sensor air duct should be installed on the expiratory port in anesthesia breathing circuit, and place flow signal photoelectric card at the side of the anesthesia machine in the middle of flow sensor air duct.
7. The installation of oxygen concentration sensor is as illustrated by Fig 3. Insert the oxygen concentration sensor sampling connector at the side of the anesthesia machine into the oxygen concentration sensor. If the oxygen concentration sensor is damaged or if it’s pulled out after use, and the standby plug could be inserted into the location of the oxygen concentration sensor.
8. Connect two breathing tube in the Y-shaped connector (specialized in adjustment), one connect to the inspiratory port of breathing circuit, the other connect to the expiratory port of anesthesia breathing circuit through the flow sensor; and the Y shaped connector is connected to simulated lung or gas storage bag.
9. Connect anesthesia machine to compressed O₂ and N₂O source by gas input port.
10. Plug the anesthesia machine plug into AC 220V 50HZ power outlet with well-grounded individual AC base.