YOKOGAWA wt3000, Руководство пользователя, Страница: 327 / 384

12-13
IM 760301-01E
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App
Index
Specifications
12.6 Input/Output of the Master/Slave
Synchronization Signal
Item Specifications
Connector type BNC connector: Common to the master and slave
I/O level TTL: Common to the master and slave
Output logic Negative logic, falling edge: Applicable to the master
Measurement start delay Within (1 µ s + 1 sample period): Applicable to the master
time
Output hold time
Low level, 500 ns or more: Applicable to the master
Input logic Negative logic, falling edge: Applicable to the slave
Minimum pulse width Low level, 500 ns or more: Applicable to the slave
Input delay time During HOLD ON Within (1
µ
s + 1 sample period): Applicable to the slave
During HOLD OFFWithin (63 µ s + 1 sample period): Applicable to the slave
12.7 External Clock Input
Common
Item Specifications
Connector type BNC connector
Input level TTL
When Used as a Synchronization Source (Ext Clk) during Normal Measurement
Item Specifications
Frequency range Same as the measurement range of “Frequency Measurement” in section 12.5.
Input waveform 50% duty ratio rectangular wave
When Used as a PLL Source (Ext Clk) during Harmonic Measurement
Item Specifications
Frequency range Harmonic measurement (/G5) option: 10 Hz to 440 Hz
Advanced computation (/G6) option:
10 Hz to 2600 Hz
Input waveform 50% duty ratio rectangular wave
When Used as an External Sampling Clock (Smp Clk) during Wide Bandwidth
Harmonic Measurement Mode
Item Specifications
Frequency range Frequencies that are 3000 times 0.1 Hz to 66 Hz
Input waveform 50% duty ratio rectangular wave
When Used as a Trigger
Item Specifications
Minimum pulse width 1 µ s
Trigger delay time Within (1
µ
s + 1 sample interval)