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Summary of Contents for WHALETEQ HFPA150
- Page 1 HFPA150 | User Manual WHALETEQ ESU Neutral Electrodes Impedance Tester Model: HFPA150 User Manual Version 2020-09-22 Hardware Version 1.3.x www.whaleteq.com...
- Page 2 IEC standard. The built-in generator is capable of generating signals with frequency ranging from 50 kHz to 5 MHz, producing current over 200 mArms, and sine wave with THD < 0.3%. The HFPA150 is built with high stability output, adjustable frequency and gain functions. In addition to neutral electrode test, it could also be used as a measurement tool for general purpose generator where the specifications are appropriate.
- Page 3 Frequency is adjustable from 50 kHz to 5 MHz ⚫ Note: An oscilloscope shall be used with the HFPA150 to measure the output voltage and current. The HFPA150 is equipped with a built-in conversion circuit, so that no additional current probe is required to measure the current value.
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Page 4: Safety Summary
HFPA150 | User Manual oscilloscope to obtain the current value. (For details, please refer to Chapter 6B, < How to monitor the HFPA150 output voltage and current>). 2. Safety Summary Please review the following safety warnings to avoid injuries and prevent damage to this product or any related products. -
Page 5: Main Applications
HFPA150 | User Manual Main applications: IEC60601-2-2:2009 Measurement of neutral electrode contact impedance. Recommended test instruments: Testing of neutral electrode according to IEC 60601-2-2:2009 201.15.101 Neutral Electrodes 201.15.101.1 Not testing General requirements for required NEUTRAL ELECTRODES 201.15.101.2 NE code attachment 201.15.101.3... -
Page 6: Specifications
<0.3% (-50.4 dB), at 200 mArms, 50 Ω, 1 MHz Impedance <3.2Ω + j0.4 µH Auxiliary equipment for Oscilloscopes (Ch1 connects with voltage probe to contact impedance test measure voltage, Ch2 connects with HFPA150 current monitoring interface to measure the current value) Current Measurement Accuracy* < ±5% Frequency Range... - Page 7 HFPA150 | User Manual 4. Labels Figure 1. HFPA150 back panel Back panel labels – Figure 1. Item Label Name Description On/Off Power switch On/Off Switch 12 VDC power input connecting to the DC IN 12V Power Interface power supply www.whaleteq.com...
- Page 8 HFPA150 | User Manual Figure 2. HFPA150 front panel Front panel labels – Figure 2. Item Label Name Description Output Signal output port Signal output. BNC connector. Turn clockwise to increase frequency Frequency Frequency and turn counter clockwise to adjustment knob...
- Page 9 HFPA150 | User Manual output or when the reset button is pressed. Gain Reset Gain reset Press to reset gain to zero Connect the oscilloscope with the original factory-supplied BNC cord to Current Current monitoring monitor the current value. (The...
- Page 10 HFPA150 | User Manual 5. Original factory-supplied connection cords HFPA150 is capable to measure the output current value through a current monitor port with direct connection to the oscilloscope using the BNC-BNC cord. This unique design saves cost and the need of an expensive current probe.
- Page 11 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.
- Page 12 HFPA150 | User Manual Length 20 cm Cord Capacitor ≤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 * Always use the original factory –supplied power supply. Powering up Switch the HFPA150 on. 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 (DUT) and voltage probes connect with the oscilloscope CH1 (as shown in Figure 5) Power up the HFPA150, turn the "Gain" knob clockwise to read a 50 kHz signals from CH1/CH2. The HFPA150 is working properly when amplitude increases with gain increase.
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Page 15: Parameter Adjustment
Overcurrent will activate the protection circuit. See Chapter 7 <Overcurrent protection> 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. While turning the “Gain” knob to increase gain, the power output also increases accordingly. - Page 16 HFPA150 | User Manual "Frequency" knob: use for frequency output adjustment. Monitor the oscilloscope to adjust the Frequency desired frequency. Turning the knob clockwise to increase the frequency; counter-clockwise to reduce frequency. “100KHz” indicator: Illuminates to indicate for 100 kHz selection. Frequency is adjusted to be 100 kHz per step.
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Page 17: Overcurrent Protection
Overcurrent protection To ensure the safety operation and avoid the risk of damage to equipment due to improper use, the HFPA150 is built with a set of overcurrent protection circuit. When “Detected circuits” detects an overcurrent, it will target the “Power Amp (Turn Off)”... - Page 18 HFPA150 | User Manual Both waveform distortion (Figure B) and no 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.
- Page 19 “Variable Amp” to Low gain “0.” 8. Test example Test of ESU Neutral Electrodes Impedance Test Refer to Figure 7 for HFPA150 connection for neutral electrode contact impedance test. Connect the original factory-supplied BNC-Alligator cord from 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.
- Page 20 Calculate the contact impedance value for the neutral electrode. Adjust the frequency to 500 kHz/1 MHz/2 MHz/5 MHz and repeat step 4 and 5. Figure 7. HFPA150 connection for neutral electrode contact impedance test www.whaleteq.com Page 20 of 21...
- Page 21 HFPA150 | User Manual 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 www.whaleteq.com...
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