OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL
November 2000
Page 2
1.2 Specifications
SPECIFICATION / MODEL OD-514B OD-515B OD-545B
Sensitivity 1 mV ∼5V/DIV, 12 steps in 1-2-5 sequence
Accuracy 5 mV ∼5V/DIV: ≤3%, 1 mV ∼2 mV/DIV: ≤5% (10ºC to 35ºC)
(5 DIV at the centre of display)
Vernier vertical sensitivity To 1/2.5 or less of panel-indicated value.
5mV~2V/DIV:
DC~40MHz (-4 dB)
5V/Div:DC~40MHz (-5dB)
1mV~2mV/DIV:
DC~10MHz (-3dB)
5 mV ∼5 V/DIV: DC ∼60 MHz,
1 mV ∼2 mV/DIV: DC ∼15 MHz
Frequency bandwidth
AC coupling: Low limit frequency 10Hz.
(With reference to 100kHz, 8 DIV. Frequency response with –3 dB.)
Rise time 5 mV ∼5 V/DIV: ≈8.75 ns
1 mV ∼2 mV/DIV: ≈35 ns 5 mV ∼5 V/DIV:≈5.8 ns,
1 mV ∼2 mV/DIV: ≈23 ns
Input impedance 1 M
:
±2% // Approx. 25 pF
Overshoot: ≤7% (At 10 mV/DIV range)
Square wave characteristics (5 DIV at the centre of display)
Other distortions and other ranges: 5% added to the above value. (10ºC to 35 ºC)
DC balance shift 5 mV ∼5 V/DIV: ±0.5 DIV, 1 mV ∼2 mV/DIV: ±2.0 DIV
Linearity < ±0.1 DIV of amplitude change when waveform of 2 DIV at graticule centre is
moved vertically.
Vertical modes
CH1: CH1 single channel.
CH2: CH2 single channel.
DUAL: CH1 & CH2 channels. CHOP/ALT are auto-set by TIME/DIV switch.
(CHOP:0.5 s ∼5 ms/DIV, ALT: 2 ms ∼0.1
P
s/DIV)
When CHOP switch is pushed in, the two traces are displayed in the
CHOP mode at all range.
ADD: CH1 + CH2 algebraic addition.
Chopping repetition frequency Approx. 250 kHz
Input coupling AC, DC, GND
Maximum input voltage 400 V (DC + AC peak), AC: frequency 1 kHz or lower.
Common mode rejection ratio 50:1 or better at 50 kHz sinusoidal wave.
(When sensitivities of CH1 and CH2 are set equally)
Isolation between channels
(At 5 mV/DIV range) >1000:1 at 50 kHz
>30:1 at 35 MHz > 1000:1 at 50 kHz
> 30:1 at 60 MHz
CH1 signal output Approx. 100 mV/DIV without termination, 50 mV/DIV with 50
:
termination.
Bandwidth (-3 dB): OD-514B: 20 MHz, OD-515B & OD-545B: 40 MHz
CH2 INV BAL. Balanced point variation: ≤1 DIV (Reference at centre graticule.)
Dynamic range > 8 DIV at 20 MHz
> 4 DIV at 40 MHz > 8 DIV at 50 MHz
> 5 DIV at 60 MHz
VERTICAL
AXIS
Signal delay --- --- Leading edge can be
monitored.
Triggering source CH1, CH2, LINE, EXT (CH1 and CH2 can be selected only when the vertical
mode is DUAL or ADD). In ALT mode, if the TRIG. ALT switch is pushed in, it can
be use for alternate triggering of two different source. )
Coupling AC, HF-REJ, TV, DC
(TV-V/TV-H can be auto-set by TIME/DIV range. TV-V: 0.5 s-0.1 ms/DIV;
TV-H: 50
P
s ∼0.1
P
s/DIV)
TRIGGERING
Polarity +/ −
