SIZE: 20.0cm*16.5cm *6.5cm Gross weight: 13.5kg(20pse) size: 45cm*35.5cm*35.5cm Whole set includes: Charger, gallus, manual SPECIFICATION: Detailed Product DescriptionFunction characteristic: It can detect the Fetal heart, LCD display FHR, it's used for detecting the fetal heart at hospital, clinic, family. Introduction: 1. MF-500++ With the blue backlight LCD, whether the light is bright or dark, the FHR can be read clearly. 2. This Doppler has a Ni-MH rechargeable battery inside, which can be used repeatedly after recharging. The gallus can make it convenient to carry. 3. Earphone and gel are optional for purchasing gallus, operation manual. Specification: E Standard: EN61266: 1995E Safety Classification: BF /Class /Internal powerE Overall sensitivity: Y 90 dB(disclosed proform see Annex )E Target velocity and display range: 60-210 bpm(for BF-500+/500++)E EMC testing data (annexe )E Working frequency 2.5 MHz? ? ? 10% E Output power? ? ? 5 mWE Spatial-peak temp-peak acoustic pressure? ? 0.1 MPa. E Effective area of transducer: 4.0? ? ? 0.5 cm2E Adapter input voltage: 230V ACE Adapter input consumer (recharging )? ? ? 5VAE Adapter output voltage (no load )DC 12V? ? ? 1VE Battery9.6V Ni-MH batteriesE Audio output power? ? ? 1.8 WE Coupling medium impedance: 1.5-1.6 (105g/cm2. S)E Doppler frequency: 0-3000HzE Working time (after recharged): BF-500:? Y 8 hours; BF-500+:? Y 5 hours; BF-500++:? Y4 hours; E Environment temperature 10~40Function: This Doppler can be used for detecting the FHR from twelve week. How to maintain the unit1. Low battery power: MF-500++When battery power is low, the sensitivity will decline, the working indicator will go dark and FHR on the LCD will glint or not be digitally displayed. Notice: For the first time charging should be more than 12-16 hours. 2. Preservation method: Prevent any liquid from reaching the Doppler and do not immerge the unit and probe in any liquid/water. Notice: If the Doppler outer shell is dirty after use, please use the neuter cleanser to clear it, strictly prohibit to use any other organic materials to clean it including industry alcohol.
