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Summary of Contents for World Precision Instruments A365RC
- Page 1 INSTRUCTION MANUAL A365 Stimulus Isolator www.wpiinc.com 062824 062824...
- Page 2 WARNING! High voltages produced can produce dangerous electrical shock. This device is not approved for clinical applications. Do not turn on power while you are holding bare high voltage wires or connectors.
- Page 3 Claims and Returns ........................19 Repairs ............................19 Copyright © 2024 by World Precision Instruments. All rights reserved. No part of this publication may be reproduced or translated into any language, in any form, without prior written permission of World Precision Instruments, Inc.
- Page 4 World Precision Instruments...
- Page 5 Please read these carefully. This symbol indicates a WARNING. Warnings alert you to actions that can cause personal injury or pose a physical threat. Please read these carefully. NOTES and TIPS contain helpful information. Fig. 1—A365 Stimulus Isolator World Precision Instruments...
- Page 6 WARNING! THIS DEVICE IS NOT INTENDED FOR HUMAN USE. Parts List After unpacking, verify that there is no visible damage to the sensor. Verify that all items are included: (1) A365 Stimulus Isolator (1) Instruction Manual World Precision Instruments...
- Page 7 Wrap the instrument in paper or plastic surrounded with at least 100mm (four inches) of shock absorbing material. For further details, please read the section entitled “Claims and Returns” on page 19 of this manual. World Precision Instruments...
- Page 8 Audio on — This is a high frequency tone to indicate stimulation is present. High tone with Audio off — compliance alarm, this indicates that the A365 cannot supply enough voltage to drive the requested “dialed-up” current through the test World Precision Instruments...
- Page 9 Disposable alkaline batteries may be discharged longer (two hours at 10 mA) to 5.0 volts or less (75 volts on A365), however this not recommended as the cessation of the stimulation is not predictable. World Precision Instruments...
- Page 10 (AC) rather than a conductor (DC). This etching action results in the formation of an electrolytic interface between the metal surface World Precision Instruments...
- Page 11 Thus the first current pulse would have a polarity of red negative. If a burst of pulses is used, the polarity at the end of the burst will depend on whether an odd or even number of pulses were emitted. World Precision Instruments...
- Page 12 Lab-Trax 4/16 measures the voltage and is adjusted by a 20× conversion factor. The 500K total R does draw current and this does effect the total voltage and current of the circuit and should be noted in the log. World Precision Instruments...
- Page 13 Thus, models A365D and A365R can be used as low noise sources of accurate voltage pulses or DC. To maintain less than 1% error, avoid shunting the output dummy resistor with a load resistance less than 100 times the dummy resistance value. World Precision Instruments...
- Page 14 5.5V (82.5V in A365) may not be further rechargeable and require replacement. Disposable alkaline batteries may be discharged longer (2 hours at 10mA) to the 5.0 volt or below level (75 volts on A365), however this not recommended as the cessation of stimulation is not predictable. World Precision Instruments...
- Page 15 90 days, the batteries should be removed and stored separately. Rechargeable batteries can and do leak KOH (potassium hydroxide), a caustic substance which can damage the internal circuitry of the instrument. TO PRESERVE BATTERY LIFE, TURN THE POWER SWITCH OFF WHEN INSTRUMENT IS NOT IN USE. World Precision Instruments...
- Page 16 260 hours, both are due to the 9V power circuit discharging first. Control circuit (powered by one 9V or 7.2V battery): Power on and not stimulating: 1000 hours ( 9 V alkaline), 260 hours (7.2 V NiMH) World Precision Instruments...
- Page 17 With the momentary switch on, remove the resistor pack and the compliance alarm will sound, indicating a lack of controllable current. Warning: A high voltage of 125V or more is present across the terminals. World Precision Instruments...
- Page 18 NOTE: If you have a problem/issue with that falls outside the definitions of this troubleshooting section, contact the WPI Technical Support team at 941.371.1003 or technicalsupport@wpiinc.com. World Precision Instruments...
- Page 19 Impedance to ground ............1012 Ω shunted by < 15 picofarads Isolation Max. Volts ................2500 VAC, input to output Leakage ..................less than 9 nA at full scale 10 mA Power Model A365D: 16 alkaline 9V batterie Model A365R: Rechargeable NiMH (7.2 V only (Requires A362 battery charger) World Precision Instruments...
- Page 20 DECLARATION OF CONFORMITY World Precision Instruments...
- Page 21 A365 World Precision Instruments...
- Page 22 World Precision Instruments...
- Page 23 A365 WARRANTY WPI (World Precision Instruments, Inc.) warrants to the original purchaser that this equipment, including its components and parts, shall be free from defects in material and workmanship for a period of one year* from the date of receipt. WPI’s obligation under this warranty shall be limited to repair or replacement, at WPI’s option, of the equipment or defective components or parts upon receipt thereof...
- Page 24 W OR LD P RE C I SI O N I NSTR U M E N TS...
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