| Frequency Range |
0.1 Hz to 100
MHz (DC coupled) |
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| 30
Hz to 100 MHz (AC coupled) |
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| Sensitivity |
30 mV rms |
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| Coupling |
AC or DC selectable. |
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| Impedance |
1 MΩ resistance shunted by < 40
pF |
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| Attenuator |
x1 or x10 switch selectable |
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| Low
Pass Filter |
-3 dB point at approx. 100 KHz,
switch selectable |
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| Accuracy |
± Time base error ± resolution
(Table 1) |
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| Resolution
and Number of Displayed Digits |
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| Time
Base Selector |
INT |
EXT |
INT |
EXT |
INT |
EXT |
INT |
EXT |
| Gate
Time |
0.01S |
0.1S |
1S |
10S |
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| Number of Display Digits |
5 |
6 |
6 |
7 |
7 |
8 |
8 |
9 |
| Frequency
(Input A) |
Resolution |
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| 0.1
Hz-0.99 Hz |
10 µHz |
1 µHz |
1 µHz |
0.1 µHz |
0.1 µHz |
10nHz |
10nHz |
1nHz |
| 1 Hz-9.9
Hz |
0.1mHz |
10 µHz |
10 µHz |
1 µHz |
1 µHz |
0.1 µHz |
0.1 µHz |
10nHz |
| 10 Hz-99
Hz |
1 mHz |
0.1mHz |
0.1mHz |
10 µHz |
10 µHz |
1 µHz |
1 µHz |
0.1 µHz |
| 100
Hz-999 Hz |
10mHz |
1 mHz |
1 mHz |
0.1mHz |
0.1mHz |
10 µHz |
10 µHz |
1 µHz |
| 1
KHz-9.9 KHz |
0.1 Hz |
10 mHz |
10 mHz |
1 mHz |
1 mHz |
0.1 Hz |
0.1 mHz |
10 µHz |
| 10
KHz-99 KHz |
1 Hz |
0.1 Hz |
0.1 Hz |
10 mHz |
10 mHz |
1 mHz |
1 mHz |
0.1mHz |
| 100
KHz-999 KHz |
10 Hz |
1 Hz |
1 Hz |
0.1 Hz |
0.1 Hz |
10 mHz |
10 mHz |
1 mHz |
| 1
MHz-9.9 MHz |
100 Hz |
10 Hz |
10 Hz |
1 Hz |
1 Hz |
0.1 Hz |
0.1 Hz |
10 mHz |
| 10
MHz-99 MHz |
1 KHz |
100 Hz |
100 Hz |
10 Hz |
10 Hz |
1 Hz |
1 Hz |
0.1 Hz |
| 100MHz |
10 KHz |
1 KHz |
1 KHz |
100 Hz |
100 Hz |
10 Hz |
10 Hz |
1 Hz |
| (Table 1) |
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| Max.
Input Voltage Level |
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| Fig.
1 Max. Input Level (Input A) |
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| Fig.
1 Max. Input Level (Input A) |
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| Period
Range |
10 nS to 10 S |
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| Display |
n/µ/m (nano/micro/milli)
Sec. with decimal point |
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| Total
Range |
10 Hz to 30 MHz |
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| Capacity |
0 to 999 999 999, OVER
FLOW: "OF" |
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| RPM
Range |
600 to 600 x 106 RPM,
OVER FLOW: "OF" |
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| Input
C Characteristics |
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| Frequency
Range |
80 MHz to 3.5 GHz |
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| Sensitivity |
15mV from 80 MHz to 2000
MHz |
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| 20mV
from 2000 MHz to 3.0 GHz |
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| 30mV
from 3.0GHz to 3.2GHz |
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| 50mV
from 3.2GHz to 3.5GHz |
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| Coupling |
AC only |
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| Impedance |
50 Ω ±5% |
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| Max.
Input Level |
3 V rms sine wave |
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| Resolution
and Number of Displayed Digits |
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| Time
Base Selector |
INT |
EXT |
INT |
EXT |
INT |
EXT |
INT |
EXT |
| Gate
Time |
0.01S |
0.1S |
1S |
10S |
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| Number Of Displayed Digits |
5 |
6 |
6 |
7 |
7 |
8 |
8 |
9 |
| Frequency
(Input C) |
Resolution |
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| 100
MHz-999 MHz |
10 KHz |
1 KHz |
1 KHz |
100 Hz |
100 Hz |
10 Hz |
10 Hz |
1 Hz |
| 1
GHz-3.7 GHz |
100 KHz |
10 KHz |
10 KHz |
1 KHz |
1 KHz |
100 Hz |
100 Hz |
10 Hz |
| (Table 2) |
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| Time
Base Characteristics |
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| Type |
TCO (Temperature
Controlled Oscillator) |
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| Frequency |
10.000000 MHz |
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| Stability |
±1 PPM (±1 count) |
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| Line Voltage Stability |
Less than ± 1 PPM with ±
10% line voltage variation |
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| Temperature
Stability |
±5 PPM from 0°C to 50°C |
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| Max.
Aging Rate |
±5 PPM/year |
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| Int.
Std. Out |
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| Level |
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| Capacitance |
10 MHz (Internal Standard
Frequency Output) |
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| 1
V p-p or more. TTL (10TTL) |
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| 15pF |
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| Ext.
Std. In |
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| Level |
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| Impedance |
10 MHz (External Standard
Frequency Input) |
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| 1.5Vrms
to 5Vrms |
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| Approx.
600Ω |
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| Display
Characteristics |
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| Display |
Nine Digit 0.56" LED
with M (Mega) or K (Kilo) Hz; nano, micro, or milli (n/µ/m) Sec.; GT (GATE
TIME); H (HOLD); and OF (OVERFLOW) indicators. FUNCTION and GATE TIME are
user selected. OF display is shown when the count exceeds 999 999 999. |
| Hold |
In the FREQUENCY, PERIOD,
TOTAL, RPM modes, measurement in progress is stopped; and the last complete
measurement is displayed. When HOLD is released, a new measurement begins. |
| Gate
Time |
Depending on input
frequency |
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| <
10 mS --------- Somewhere between 0.9 and 9mS |
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| <
0.1 S ----------- Somewhere between 9 and 90mS |
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| <
1 S -------------- Somewhere between 90 and 900mS |
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| <
10 S ------------ Somewhere between 0.9 and 9S |
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| Note:
Last measurement display will remain for 10 seconds after signal off. |
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| Dimensions
and Weight |
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| Dimensions
(WxHxD) |
9.4 x 3.5 x 10.6"
(240 x 90 x 270mm) |
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| Weight
(Approx) |
5.5lbs. (2.5 kg.) |
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| Equipment
Ratings |
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| Power |
115VAC±10%, 50-60 Hz, 9 W |
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| Plug
and Socket |
3 wire ac power plug and
3 wire outlet |
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| Fuse |
500 mA/ 250V F type |
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| Operating
Environment |
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| Temperature |
0 °C to +40 °C (Accuracy
Specified at 23 °C ± 5 °C) |
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| Humidity |
up to 85% RH (Relative
Humidity) to 40 °C without temperature extremes causing condensation within
the instrument. |
| Storage
Environment |
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| Temperature |
-20°C to +70°C |
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| Humidity |
below 85% RH |
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| Insulation Category II |
Portable equipment of
local level. |
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| Pollution
Degree |
2 |
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| Protection
to IEC 529 |
Ordinary |
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