Stimulus Isolator / Precision Current Source Activated by conventional logic-level commands, Model A365 can be gated by any pulse generator, stimulator, or computer output; automated bipolar pulsing for zero net charge on biological preparations. Dual tone audible alarms — A tone sounds when an open electrode circuit is detected or when system compliance is reached. A second optional tone sounds when a signal is applied to the input. A test switch is also provided to check battery charge. Current delivery — Stimulus currents are set using a three-digit control knob and a three-position range switch. Output current tracks control settings to better than 1%. Output current is load independent; voltage sufficient to push the desired current through the load is automatically developed, subject only to compliance limits. Model A360LA produces up to 10 milliampere current, in three ranges, at more than 100 volts compliance. Polarity — Output polarity is determined by a push switch on the front panel. Bipolar current is toggled by the command waveform, setting alternating pulses as positive or negative. SYS-A365D A365RC SYS-A365R SYS-A362 High Voltage Isolator, Bipolar, alkaline batteries A365R with charger (A362) High Voltage Isolator, Bipolar, rechargeable Battery Charger for A320R, A365R, A395R Specify line voltage OPTIONAL ACCESSORIES DRL Dummy Load Resistor Kit (set of 3) 13347 BNC-to-Double Banana Adapter STIMULATORS, ISOLATORS A365 SPECIFICATIONS OUTPUT WAVEFORM OUTPUT CURRENT RANGES CURRENT AMPLITUDE ERROR CURRENT RESOLUTION OUTPUT LOAD VOLTAGE EXCURSION (COMPLIANCE) EXTERNAL COMMAND VOLTAGE TRIGGER THRESHOLD OUTPUT POLARITY CURRENT RISE TIME & DELAY CURRENT FALL TIME & DELAY OUTPUT TO GROUND RESISTANCE OPTOCOUPLER POWER Model A365D (dry cell) incl. Model A365R (rechargeable) 16 alkaline 9 V batteries, included 16 rechargeable NiMH 9 V batteries 8.5 x 3.5 x 5 in (22 x 9 x 12 cm) 4 lb (1.8 kg) 100 V 5.0 V at 3.0 mA (TTL level), 10 V max. 2.0 V at 0.5 mA Reversible, manual switch or automatic 6 µs, typical (1 KΩ load) 10 µs, typical (1 KΩ load) 1012Ω 2500 V, rated min. breakdown voltage DC or current pulse 0.1, 1.0, and 10 mA 0.5% of full scale, max. 0.1% of full scale, typical DRL — Dummy Load Resistor Kit Converts current output to precise voltages. DIMENSIONS SHIPPING WEIGHT UK: Tel: +44 (0)1462 424700 • wpiuk@wpi-europe.com World Precision Instruments www.wpiinc.com Germany: Tel: +49 (0)30-6188845 • wpide@wpi-europe.com US: Tel: 941-371-1003 • sales@wpiinc.com 91