A300 Pulsemaster™ Multi-Channel Stimulator The Pulsemaster™ (Model A300) is WPI’s third generation, multichannel, pulse/train generator/stimulator that combines the superb accuracy of digital electronics with the “you-seewhat-you-get” displays only available on single-channel products. In one compact rack mountable enclosure, the Pulsemaster contains an event interval generator, five pulse train channels, two mixing channels and a very quiet variable voltage output channel. System timing is accurate to 100 ppm; output timing is continuously variable in 0.1% of full scale increments over a range of eight orders of magnitude. Bright, threedigit LED displays continuously and simultaneously show all the variable timing parameters. The Pulsemaster is designed for ease of use and flexibility. Each channel can be operated synchronized with the onboard event interval generator, triggered manually from any other channel or external source, and as an independent asynchronous pulse generator. Except for the external source, all channel interconnections are accomplished on the panel, without the use of cables. The output from each channel is compatible with standard digital circuitry and is also designed to drive WPI’s A300 series stimulus isolators. If desired, any channel’s output may be internally connected to the variable channel, whose amplitude can be continuously adjusted from millivolts to ten volts. An integrated five-channel pulse generator/stimulator including one inter val generator, five pulse or train channels, two mixer channels and one very quiet variable voltage output stage SYS-A300 STIMULATORS, ISOLATORS Pulsemaster™ Multi-Channel Stimulator Specify line voltage A300 PULSEMASTER SPECIFICATIONS EVENT INTERVAL CHANNEL Operating Modes Input Timing EXTernal SYNC, SINGLE EVENT, CONTINUOUS ON EXT SYNC accepts ≥ 1µs pulses; TTL, CMOS, RS232C compatible EVENT INTERVAL 10 µs to 999 s (100 kHz - 0.001 Hz), ±0.1% of full scale, continuously variable in 0.1% of full scale increments, through three orders of magnitude, in six ranges SYNC OUT pulse of ≈6 µs, TTL, 5 V CMOS compatible MIXER CHANNEL (2 provided) Inputs Any combination of an EXTernal pulse, the outputs of the five Pulse Train channels, and DC continuous ON/ DC MOMentary EXT INPUT accepts ≥ 1µs pulses OUTPUT, TTL, 5V CMOS compatible, 4 mA sink and source Output VARIABLE CHANNEL Inputs Output Output Output from any one PULSE TRAIN channel or one of the two MIXER channels or DC 0 to +1 V low range, 1 mV resolution 0 to +10 V high range, 10 mV resolution 5 mA max sink and source PULSE TRAIN CHANNEL (5 provided) Operating Modes EXTernal SYNC, SELF SYNC, manual SINGLE event, sync from Event Interval, sync from any of other four Pulse Trains, sync from one of the MIXers, off, TRAIN/PULSE EXT SYNC accepts ≥ 1µs pulses; TTL, CMOS DELAY and WIDTH 10 µs to 999 s, ±0.1% of full scale OUTPUT PULSE/TRAIN of preset timing, TTL, 5 V  CMOS compatible, 4 mA sink and source Output Impedance <1 ohm Noise Signal Ground POWER BATTERIES DIMENSIONS SHIPPING WEIGHT <500 µV peak @ 100 kHz bandwidth, PULSED mode <500 µV, wide band, DC mode Floating, i.e., not connected to chassis 95-135 V or 220-240 V, 50/60 Hz Three 1.2 V DC, size AA, NiMH batteries 8.5 x 19 x 8.75 in. (22 x 45 x 22 cm) 21 lb (9.5 kg) Input Timing Output 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 89