Stimulus Isolators / Precision
Current Sources
Activated by conventional logic-level commands, Model A360LA can be gated by any pulse generator, stimulator, or computer output.
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 2% 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 three-position switch on the front panel (+/-/off).
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A360LA SPECIFICATIONS |
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| Output Waveform | DC or current pulse |
| Output Current Ranges | 0.1, 1.0, and 10 mA |
| Current Amplitude Error | 0.5% of full scale, max. |
| Current Resolution | 0.1% of full scale, typical |
| Output Load Voltage Excursion (Compliance) | 100 V minimum, 130 V nominal |
| External Command Threshold | 2.2 V at 2.6 mA, min. 8.5 V, max. (TTL) |
| Output Polarity | Reversible, manual switch |
| Current Rise Time & Delay | 2 µs, typical (1 KΩ load) 5 µs @ 10 KΩ |
| Current Fall Time & Delay | 5 µs, typical (1 KΩ load) 8 µs @ 10 KΩ |
| Output to Ground Resistance | 1012 Ω |
| Optocoupler | 2500 V, rated min. breakdown voltage |
| Noise | <0.1 microampere (10 mA), < 50 nA (1 mA, 100 microampere A) |
| Current Leakage | +/- 10 nA +/- 0.01% of full scale |
| Power | Two 6-V lead/acid batteries, 2.4 Ah |
| Recharge Time | 4 hours |
| Recharger Included | 100-240 VAC, 50-60 Hz, universal |
| Dimensions | 4.5 x 3.5 x 5.5 in. (11 x 9 x 14 cm) |
| Shipping Weight | 4 lb (1.8 kg) |
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Model A365 includes the same features and specifications as A360 but with the added capability for bipolar pulsing for zero net charge.
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.
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A365 SPECIFICATIONS |
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| Output Waveform | DC or current pulse |
| Output Current Ranges | 0.1, 1.0, and 10 mA |
| Current Amplitude Error | 0.5% of full scale, max. |
| Current Resolution | 0.1% of full scale, typical |
| Output Load Voltage Excursion (Compliance) | 100 V |
| External Command Threshold | 2.2 V at 2.6 mA, min. 8.5 V, max. |
| Output Polarity | Reversible, manual switch or automatic |
| Current Rise Time & Delay | 6 µs, typical (1 KΩ load) |
| Current Fall Time & Delay | 10 µs, typical (1 KΩ load) |
| Output to Ground Resistance | 1012 Ω |
| Optocoupler | 2500 V, rated min. breakdown voltage |
| Power | Model A365D (dry cell) 16 alkaline 9 V batteries, included Model A365R (rechargeable) 16 rechargeable NiMH 9 V batteries incl. |
| Dimensions | 8.5 x 3.5 x 5 in (22 x 9 x 12 cm) |
| Shipping Weight | 4 lb (1.8 kg) |
Order Numbers |
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| A365RC | A365R with Charger (A362) |
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A360-LA |
High Voltage Isolator, lead acid battery, charger included |
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Specify line voltage |
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A365D |
High Voltage Isolator, Bipolar, standard battery |
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A365R |
High Voltage Isolator, Bipolar, rechargeable |
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A362 |
Battery Charger for A320R, A360R, |
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Specify line voltage |
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OPTIONAL ACCESSORIES |
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DRL |
Dummy Load Resistor Kit (set of 3) |
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3468 |
Dual Rack Mount Kit for A365 |
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3469 |
Single Rack Mount Kit for A365 |