A385 High Current Isolator Rechargeable

Delivers positive, negative, or bipolar currents

Delivers positive, negative, or bipolar currents. For bipolar delivery, polarity of the output is toggled to the opposite state with each pulse presented to the input. Pulse duration is controlled by an externally applied voltage. In­put connector is a standard BNC, allowing signals from any source — such as computer D/A or I/O lines — to be used.

Output amplitude

Output amplitude is set on a 3-digit, ten-turn dial as a percentage of the range selected: for example, a setting of 45.6 in the 0-10 mA range translates to 4.56 mA at the output.

Accurate and repeatable

Accuracy and repeatability are excellent. Designed for subcutaneous stimulation, maximum output voltage at the stimulating electrodes is 36 volts, reducing the possibility of serious accidental transcutaneous shocks. A compliance/output alarm sounds when the 36-volt limit is reached. Internal circuitry maintains electrodes short-circuited during inactive periods (“electrode exhauster” feature). A385 is not appropriate for transcutaneous stimulation.

Battery life

The 1.2 amp-hour rating of the six heavy-duty lead-acid rechargeable batteries ensures that experiments will not be interrupted by dead batteries — even at peak currents. Indicator lights and audible alarms keep the user constantly apprised of battery charge status. These batteries must be recharged by the A382 System Charger designed especially for the A385.

OUTPUT WAVEFORM	DC or current pulse
OUTPUT CURRENT RANGES	1, 10, and 100mA
CURRENT AMPLITUDE ERROR	0.5% of full scale, max
CURRENT RESOLUTION REPEATABILITY	0.1% of full scale, typical
OUTPUT LOAD VOLTAGE EXCURSION (COMPLIANCE)	36V
EXTERNAL COMMAND VOLTAGE	5V at 3mA minimum, 8.5V maximum
EXTERNAL COMMAND VOLTAGE: OUTPUT POLARITY	Reversible, manual switch, or electronically switched bipolar delivery
EXTERNAL COMMAND VOLTAGE: CURRENT RISE TIME AND DELAY	6μs, typical (1 KOhm load)
EXTERNAL COMMAND VOLTAGE: CURRENT FALL TIME AND DELAY	10μs, typical (1 KΩ load)
EXTERNAL COMMAND VOLTAGE: OUTPUT TO GROUND RESISTANCE	1012Ω
EXTERNAL COMMAND VOLTAGE: OPTOCOUPLER	2500V, rated minimum breakdown voltage
POWER	Six rechargeable lead-acid batteries (Requires companion charger A382)
DIMENSIONS	8.5 x 3.5 x 5 in. (22 x 9 x 12 cm)
SHIPPING WEIGHT	5 lb. (2.3 kg)

A385 Instruction Manual

M. Cofan, J.M. Nicolas, J. Fernandez-Sola, J. Robert, E. Tobia, E. Sacanella, R. Estruch, A. Urbano-Marquez "Acute Ethanol Treatment Decreases Intracellular Calcium-ion Transientsin Mouse Single Skeletal Muscle Fibres In Vitro" Alcohol & Alcoholism 35. 2000: 134-138

To place an order for this product, please contact the appropriate WPI office or distributor.

Customers from North America can order direct from our corporate office:
World Precision Instruments
175 Sarasota Center Boulevard
Sarasota, FL 34240-9258

• Phone or Fax
  Toll-free: 866-606-1974 Tel: 941-371-1003 Fax: 941-377-5428
Our Customer Service Representatives are available 8am - 6pm EST.
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International customers, please see our office and distributor contact information list.

A382 - Recharger (required)
13347 - BNC to double banana connector
2851 - BNC to BNC cable
500257 - BNC to BNC connector
500258 - BNC to BNC connector
500259 - BNC to BNC connector
500184 - BNC to BNC cable
5470 - Isolated Bioamplifier
DRL - Dummy Load Resistor kit

No application notes are available for this product at this time.