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Related Manuals for Ultrasound Technologies Fetatrack 310
Summary of Contents for Ultrasound Technologies Fetatrack 310
- Page 1 Ultrasound Technologies Ltd Fetatrack 310 Service Manual Issue 1...
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Page 2: Table Of Contents
Electrical Shock Hazard............................ 7 Explosion Hazard.............................. 8 Handling the Delicate Transducers ........................8 Symbols used ..............................9 REFERENCE ......................10 FETATRACK 310 front panel controls......................10 Recorder On/Off ............................. 10 Front Panel Event Mark ..........................10 Volume Up..............................10 Volume Down ..............................10 US1 / US2 Transducer Select ......................... -
Page 3: Introduction
EMAIL service@doppler.co.uk This service manual contains circuit descriptions, diagrams, parts and spares lists is available for the FETATRACK 310 that are correct at the time of printing. Due to continuous improvement certain sections may differ in newer units if you have any doubt please contact the address above. -
Page 4: Specification
Ultrasound Technologies Ltd Specification Ultrasound Frequency 1.8 and 2.1 MHz continuous wave Transducer Multi element wide angle Audio Response 300 - 1 Khz Range 50 - 210 bpm (European), 30 – 240 bpm (Americas) Power Output <20mW/cm2 Indicators LCD heart rate and pulse indication... - Page 5 Ultrasound Technologies Ltd ©Ultrasound Technologies Ltd Issue 1 December 2004 Page 5...
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Page 6: User Configuration
Before turning the FETATRACK 310 on, press and hold down the Toco Zero button. Then, whilst keeping the Toco Zero button pressed down, turn the FETATRACK 310 on by flicking the AC input on/off switch which is located on the rear of the unit as part of the AC line input socket. When the unit is on the front panel LED will be illuminated. -
Page 7: Safety In Use
The FETATRACK 310 will then restart and operate according to your settings. The FETATRACK 310 is now operational, and the LCD screen will show US1 --- us2 (if the unit is only a single fetus monitor it will only display US1 ---) and a Toco value. -
Page 8: Explosion Hazard
Ultrasound Technologies Ltd Do not use the System if the power cord has any cuts or openings. Do not use the transducer if the cable has any cuts or openings. Do not use the transducer if the transducer face is cracked or chipped. -
Page 9: Symbols Used
Ultrasound Technologies Ltd Symbols used. The following symbols are used on the FETATRACK 310 and are in accordance with IEC60601-1 : 1990. Where they are associated with the connection of external equipment, that equipment in all cases must meet the relevant safety standard. -
Page 10: Reference
Ultrasound Technologies Ltd FETATRACK 310 front panel controls The front panel keyboard area contains 6 keys used to control the operation of the unit, they are all indicated by Icons to aid language variations. Event Mark 1. Volume Up Places arrow in... -
Page 11: Indicators And Connectors
Ultrasound Technologies Ltd Inputs / outputs and displays Power on Indication The green LED associated with the above symbol when bright indicates that power is connected to the apparatus. RS232 output This output is for the connection of an external computer for data transfer. The maximum voltage that can be applied to this output is 15VDC. -
Page 12: Internal Layout
Ultrasound Technologies Ltd Internal Layout With the top cover removed and the front panel facing you, there is one large printed circuit board fixed to the base of the monitor this contains all the power supply circuits, all the control circuits and the Ultrasound, Toco and digital signal processing circuits. -
Page 13: Circuit Description
Circuit Description Power supply Circuit The 240/110 VAC supply enters the FETATRACK 310 via an IEC double fused inlet / mains filter and switch and is fed to a torroidal transformer. The input supply voltage is stepped down to a nominal 24 VAC and is then bridge rectified by D19, smoothed by C140. -
Page 14: Ultrasound Circuit
Ultrasound Technologies Ltd Ultrasound Circuit Overview The ultrasound circuit is built up of four discrete sections. These are: Oscillator and Transmitter amplifier Receiver and Detector Audio amplifier Signal pre-processing. These operate to produce a continuous wave of 2MHz ultrasound which is passed to the transmitter crystal in the transducer. -
Page 15: Signal Pre-Processing
Ultrasound Technologies Ltd Signal Pre-processing The detected audio complex is fed to U5 a bandpass amplifier where the filter characteristics are arranged to reject signals below 150Hz and above 1KHz , and the output is taken do a digital AGC U3. The amplitude stabilised signal is then amplified and full wave rectified by U2 . -
Page 16: Microprocessor Circuit
Ultrasound Technologies Ltd Microprocessor Circuit The microprocessor circuit is arranged around MC68HC812 a fast second generation central processing unit (CPU). When power is applied to the circuit a monitor circuit waits for the power rail to become stable and then 100 ms later takes the reset on the CPU high (logic 1) to 5 v. -
Page 17: Test Procedures
Test Procedures Introduction The following sections details tests to ensure that the FETATRACK 310 is operating within specification. These tests may be performed in whole or part, however, if any repairs are carried out to the power supply circuits then it is recommended that the whole test/calibration procedure is undertaken. - Page 18 Ultrasound Technologies Ltd Setting up the monitors The mode of operation of the monitor is programmable through the front panel to give a certain amount of customisation. The programming mode is entered by pressing and holding UA Zero while turning the monitor ON.
- Page 19 Ultrasound Technologies Ltd Parts lists The following section contains parts list for the FETATRACK 310. FETATRACK 310 Control Board Device Value Quantity 10000uF Electrolytic 35V Panasonic Capacitor electrolytic TSUP snap in C130 1000uF Electrolytic 35V Panasonic Capacitor electrolytic EEUFC1V102 C134...
- Page 20 Ultrasound Technologies Ltd IC Analogue sm ZM33064G IC Analogue sm DG211DY IC Analogue sm LM324M U1,2,4,5,6,26,32 IC Analogue TDA2614 IC Analogue sm X9C103S U3,7,24 IC Analogue sm LM336M - 2.5 IC Socket sm PROM 32way plcc Diodes sm IR10BQ040 D20,21,22,23...
- Page 21 Molex 14 way header 22-27-2141 J4 (- 15 way with 1 pin removed) Connector Molex 15 way header 22-27-2151 9 way RS232C D female McMurdo Connector SDBX25PNTD FETATRACK 310 Chassis Assembly Device Value Quantity 310 Base FM1D108 Mains Inlet Filter...
- Page 22 Ultrasound Technologies Ltd Molex Crimps Spacer Switch Board 3.3mm x 8mm Al (FEC 151-045) Spacer Display 3.3mm x 6mm Al / ss (FEC 146- 322) Spacer Display M3 plain ss washer (fit between spacer and Lid) Faston Connector 0.25in shrouded...
- Page 23 Power Supplies and Audio Circuit Toco Circuit Front panel PCB Placement Diagram Frontpanel Circuit This section contains the following engineering drawings:- Fetatrack 310 Interconnection Detail General Assembly Ultrasound Transducer Assembly TOCO Transducer Assembly ©Ultrasound Technologies Ltd Issue 1 December 2004...
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