1.Introduction:
AG - 21A is ahospital fetal doppler designed for obstetricians or midwife who have higherquality for fetal doppler. The instrument operate simplely, conveniently use,especially suitable for early pregnancy FHR examiation, high sensitivity probe,clear sound, 2.5 MHZ frequency comply with safety standards, when exsisted theinitial stage of fetal heart pulsation (during pregnancy about10 weeks) havedetected, a feature that have a high sensitivity, good security, and agood solution to problem that exsist small and unclear sound,lower sensitivity.at the same time,with CE authentication (medical EN 60601-1) switch powercharger, ensure the safety of charging, rechargeable battery type use for about8 hours while charging for one time. Probe the inner is equipped with externalanti-interference device.Probe signal line that adopt special material madewhich is of anti-jamming function .
2.Features:
1. Portable , large LCD to display fetal heartbeat rate. |
2. Dismantlable probe and supporter, easily to be cleaned. |
3. 2.5MHZ probe, a waterproofing and highly anti-jamming device, easily sanitized and cleaned, safe and reliable. |
4. Low power, high sensitive probe, be able to detect clearly the foetal heart beat from the very beginning, and display the rate instantly. |
5. Unique de-noising function, hi-fi speaker ensuring perfect Doppler output effect. |
6. Energy saving, low voltage alarming, outstanding charging technology, function security to battery over-recharged/over-discharged. |
7. Function of alarming automatically when the foetal heartbeat rate oversteps the top and bottom limitation. |
3.Specification:
Power supply | AC:220V ±10%,50Hz; Ni-MH rechargeable battery(DC):7.2V |
Input power | 7.2VA(Charging:20VA) |
Rechargeable battery continuous work time | About 5.5 hours under no signal |
Equipment type | Class Ⅱ equipment |
Drip-proof equipment | Mainframe: IPX0 ; Probe: IPX4 |
Ultrasound work frequency | 2.5MHz |
Ultrasound output power | 10mW/cm2 maximum |
Overall sensitivity at the distance 200mm from the face of the probe | ≥90dB |
Doppler frequency | 400Hz ±50Hz |
Reflection target speed | 10cm/s~40cm/s |
Spatial-peak temporal-peak acoustic pressure | <1MPa |
Transducer sensitive components effective area | 1.0cm2~1.2cm2 |
FHR measurement range | 50bpm~240bpm,error ±1bpm |
Audio output | 1.2W |
Speaker | Diameter: Φ120mm |
External dimension | 230*133*210(mm) |
Weight | 1.8kg |
4.Standard Accessories:
Item name | Quantity |
Mainframe | 1 set |
Ultrasound probe | 1 piece |
Power cord(1800mm) | 1 piece |
Recharging battery 7.2V | 1 piece |
Spare fuse | 2 pieces |
Usage instruction | 1 piece |
Warranty card | 1 piece |
Qualification | 1 piece |
