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Analog triggering, Sequencer, Tachometer inputs – Measurement Computing ZonicBook 618E rev.3.4 User Manual

Page 99

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Specifications are subject to change without notice.

ZonicBook/618E

918895

Specifications 13-3

Analog Triggering

Single-Channel Analog Trigger (via CH1 through CH8)

Analog-Trigger Comparator, Ranges and Resolutions

Input Range

Trigger Threshold Range

Resolution (mV)

0-10 or ±5

-5.0 to 9.996

0.299

0-5 or ±2.5

-2.5 to 4.998

0.114

0-2 or ±1

-1.0 to 1.999

0.0458

0-1 or ±0.5

-0.5 to 0.9996

0.0229

0-0.5 or ±0.25

-0.25 to 0.4998

0.0114

0-0.2 or ±0.1

-0.10 to 0.1999

0.00458

0-0.1 or ±0.05

-0.05 to 0.09996

0.00229

Hysteresis Level:

1/600 of the comparator range

Maximum Trigger Latency:

Pre-trigger: 300 ns + T; where T equals the pre-trigger scan period.
Post-Trigger: 300 ns

Trigger Jitter:

Pre-trigger: 50 ns + T; where T equals the pre-trigger scan period.
Post-Trigger: 50 ns

Software Trigger
Latency
: 100µs typical

Trigger Input (TTL Compatible) – BNC connector. Refer to page 13-2 for details.

Sequencer

Operation: Programmable for channel, gain, and for unipolar/bipolar range in random order
Depth: 128 location
Channel-to-Channel Rate: 1.0 to 1.1µs/channel, all channels equal
Maximum Repeat Rate: 1MHz
Minimum Repeat Rate: 100 seconds per scan
Expansion Channel Sample Rate: Same as for direct channels

Tachometer Inputs

Channels: 4 differential (TACH1 through TACH4)
Connector: BNC: Center conductor is Channel High, outer conductor is Channel Low
Input Impedance: 20k

Ω Single-ended; 40k Ω double-ended

Input Voltage ranges: -50V to +50Volts specified; -75 Volts to + 75 Volts maximum
Resolution: 0.002307 V/bit
DC Accuracy: 0.25% of reading + 200 mV offset
Noise: 5 mVrms (typical); 10 mVrms (maximum)
Common Mode Rejection: -70 dB typical (0 to 60 Hz); -40 dB guaranteed (0 to 60 Hz)
Coupling: AC or DC, programmable
Analog Sampling Bandwidth: DC to 1 MHz

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