YOKOGAWA DL 1520, User Manual

Page: 177 / 201

IM 701510-01E 16-3
Specifications
16
16.3 Time Axis
Item Specifications
Time axis setting range 5 ns/div to 50 s/div
Time axis accuracy* ± (0.01 % + 500 ps)
External clock
For DL1520/DL1520L Input signal to “EXT TRIG”
Connector type
: BNC
Maximum input voltage : 250 V(DC+ACpeak) or 177 Vrms, CAT I and II
(when the frequency is 1 kHz or below)
Input band
: DC to 100 MHz
Fequency range of external clock : 40 Hz to 80 MHz
Input range
: 2 ranges ( ± 10 V and ± 1 V)
Input level range : ± 10 V range: –10 V to + 10V in steps of 40 mV
(Probe attenuation ratio 1:1) ± 1 V range: –1 V to + 1 V in steps of 4 mV
Input sensitivity : 2 Vp-p ( ± 10 V range)
(Probe attenuation ratio 1:1) 200 mVp-p ( ± 1 V range)
Input coupling : AC/DC
HF rejection : Bandwidth limit (approx. DC to 15 kHz) for the input signal can be
turned ON/OFF.
Input impedance : Approx. 1 MW(same as section 15.1)
For DL1540/DL1540L External clock can be selected from the following two signals.
• Input signal to “EXT CLOCK IN”
Connector type : BNC
Maximum input voltage : ± 6 V
Input frequency range : 40 Hz to 15 MHz (only for continuous clock)
Input level : TTL/CMOS level recommended (0.3 Vp-p or greater at the end of
the connector, ± 0.15 V or greater relative to the threshold level)
Input impedance : Approx. 1 M Ω
Threshold level : 1.5 V or 0.15 V
Minimum pulse width : 25 ns or more for both High and Low levels
• Input signal to CH4
Input frequency range : 40 Hz to 40 MHz (only for continuous clock)
Input level : 2 divp-p or higher
Threshold level : Set by the trigger level (CH4)
Minimum pulse width : 5 ns or more for both High and Low levels
* Measured after 30-minute warm-up, under the standard operating conditions stipulated on page 16-8.
16.4 Display
Item Specifications
CRT Size: 7, display method: raster scan, emission color: amber, display resolution: 540 dots (horizontal)
x 432 dots (vertical)
Display area Voltage axis: 8 div Time axis: 10 div , 501 dots (horizontal) x 401 dots (vertical)
Display resolution Voltage axis: 50 dots/div (A/D converter resolution equivalent: 25 LSB/div) Time axis: 50 dots/div
(compressed)
Maximum display update interval 60 times/s
Max. No. of displayed waveforms 8 waveforms, 6 waveforms for DL1520/DL1520L