HFPA150 | User Manual
www.whaleteq.com
WHALETEQ
ESU Neutral Electrodes Impedance Tester
Model: HFPA150
User Manual
Version 2020-09-22
Hardware Version 1.3.x
Page 1: ...HFPA150 User Manual www whaleteq com WHALETEQ ESU Neutral Electrodes Impedance Tester Model HFPA150 User Manual Version 2020 09 22 Hardware Version 1 3 x ...
Page 2: ... burn is caused by the high impedance of the NE application site and the NE cord connection Thus this safety test is especially important for the neutral electrode manufacturers The HFPA150 generates specific NE impedance test signals per requirement of the IEC standard The built in generator is capable of generating signals with frequency ranging from 50 kHz to 5 MHz producing current over 200 mA...
Page 3: ...ith the heat generated from prolong usage and resulted with the lower frequency generated Compliance with IEC60601 2 2 2009 testing requirements the HFPA150 is designed according to the standard of the neutral electrode Neutral Electrode NE contact impedance test Produce current over 200 mArms 570 mApp compliance with the standard requirement With the amplified built in sine wave generator the out...
Page 4: ...r adjust the operation program To avoid fire or personal injuries only use the original factory supplied power supply The equipment shall be operated by a qualified electrical engineer or a professional with equivalent qualification and knowledge in the principle of high frequency insulation and oscilloscope use Please read this user manual carefully for the working principles and possible risks b...
Page 5: ... different contact surfaces in some cases especially with high impedance the HFIT 8 0 is not capable to provide current up to 770mArms maximum output of HFIT 8 0 is150W and in such case an ESU along with a current probe will be required to conduct the test Testing of neutral electrode according to IEC 60601 2 2 2009 201 15 101 Neutral Electrodes HFIT 8 0 1 HFPA150 Oscilloscope Heat induction meter...
Page 6: ...act impedance test Oscilloscopes Ch1 connects with voltage probe to measure voltage Ch2 connects with HFPA150 current monitoring interface to measure the current value Current Measurement Accuracy 5 Frequency Range 50 kHz to 5 MHz Connector Type BNC General Power Source Power Adapter Input 100 240 V 50 60 Hz Output 12 VDC 2 A Environment 10 oC to 40 oC 30 to 90 RH Dimensions Weight 18X18X4 8 cm Lx...
Page 7: ...leteq com Page 7 of 21 4 Labels Figure 1 HFPA150 back panel Back panel labels Figure 1 Item Label Name Description 1 On Off Power switch On Off Switch 2 DC IN 12V Power Interface 12 VDC power input connecting to the power supply ...
Page 8: ...e for 100 kHz selection Frequency is adjusted to be 100 kHz per step 4 10KHz 10 kHz indicator Yellow Illuminates to indicate for 10 kHz selection Frequency is adjusted to be 10 kHz per step 5 100K 10KHz Frequency 100 kHz 10 kHz Switch button Press for switch between 100 kHz and 10 kHz 6 Gain Gain knob Turn clockwise to increase amplitude and turn counter clockwise to decrease amplitude Read Chapte...
Page 9: ... pressed 8 Gain Reset Gain reset Press to reset gain to zero 9 Current Monitor Current monitoring port Connect the oscilloscope with the original factory supplied BNC cord to monitor the current value The oscilloscope shows 1 mV is equivalent to 1 mA of current flowing through the DUT ...
Page 10: ...ogether with the frequency compensation circuit According to IEC60601 2 2 clause 201 15 101 6 NE contact impedance test frequency shall range from 200 kHz to 5 MHz As the frequency changes the small capacitance of the test cord with the HFPA150 resistor results in noticeable RC effect leading to significant deviation of frequency response The original factory supplied cords with the HFPA150 are de...
Page 11: ...ance 50 Ω Type of cord RG58U b BNC Alligator cord The BNC alligator clips on the short cord is specifically designed for NE tests It connects the HFPA150 with the DUT Each of the alligator clip connects the wire connection port of the DUT neutral electrode and the metallic plate prosthesis Figure 4 BNC Alligator cord ...
Page 12: ...20 pF Impedance 50 Ω Type of cord RG58U Note When using the BNC Alligator cord avoid contacting the two alligator clips together Contacting the two alligator clips under no load condition can cause output short circuit equipment damage and possible risk of fire and electric shock ...
Page 13: ...ct the power adapter 100 V 240 V 50 60 Hz Always use the original factory supplied power supply Powering up 1 Switch the HFPA150 on 2 Upon powering on the HFPA150 the green Gain Indicator and the yellow 10KHz indicators illuminate Frequency initiates at 50 kHz with no voltage through Output port ...
Page 14: ...urrent through two connecting ports of the oscilloscope 1 Connect the original factory supplied BNC BNC cord with the Current Monitoring port and oscilloscope CH2 2 Connect the Output port with the BNC Alligator cord Connect the other end of this cord to the analytes DUT and voltage probes connect with the oscilloscope CH1 as shown in Figure 5 3 Power up the HFPA150 turn the Gain knob clockwise to...
Page 15: ...illoscope Overcurrent will activate the protection circuit See Chapter 7 Overcurrent protection 2 When replacing the analyte press Gain Reset to avoid hazard to operators or damage to HFPA150 unit due to sudden load reduction and current increase 3 While turning the Gain knob to increase gain the power output also increases accordingly If the power output is over 2W pay special attention to the he...
Page 16: ...he knob clockwise to increase the frequency counter clockwise to reduce frequency 2 100KHz indicator Illuminates to indicate for 100 kHz selection Frequency is adjusted to be 100 kHz per step 3 10KHz indicator Illuminates to indicate for 10 kHz selection Frequency is adjusted to be 10 kHz per step 4 100KHz 10KHz Frequency switch button Press for switch between 100 kHz and 10 kHz ...
Page 17: ...ure 6 below illustrates the principle of the protection circuit activation Figure 6 Protective circuit block diagram Instant current rise will results in an event that the impedance of the analyte is very low or even short circuit In such case using firmware to control MCU and further adjusting the gain value is not going to be responsive enough The protection circuit works in the way of turning o...
Page 18: ...o waveform Figure C indicate the protection circuit is activated Readjust the gain value increase or decrease as needed Figure A Normal waveforms on the oscilloscope display before protection circuit is activated Figure B Distorted waveforms after protection circuit shuts down the Power Amp ...
Page 19: ...the Output port to the neutral electrode NE plates Connect the red alligator clip to the NE connector and the black alligator clip to the adhesive metallic plate 2 Connect the oscilloscope probe CH1 to the same point as the red alligator clip on the NE connector and connect the ground end of the probe to the adhesive metallic plate 3 Connect the HFPA150 Current Monitor port and the oscilloscope CH...
Page 20: ...h 200mArms this is an indication that the neutral contact impedance of tested negative plate is more than 50Ω IEC60601 2 2 2009 clause 201 15 101 6 stated that the neutral electrode impedance shall not exceed 50 Ω Stop increasing the gain in such event and record the rms voltage and current Calculate the contact impedance value for the neutral electrode 6 Adjust the frequency to 500 kHz 1 MHz 2 MH...
Page 21: ...Page 21 of 21 9 Cautions Warranty void if QC PASS label is removed or tampered with 10 Contact WhaleTeq Email service whaleteq com Address 9F No 27 Minquan W Rd Taipei City 10452 Taiwan Taiwan Phone 886 2 2596 0701 Website www whaleteq com ...
