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GRAPHTEC IWATSU Universal Counters SC-7217A / SC-7215A

Up to 3GHz (SC7217A), display up to 12 digits / second

Easy operations with single key strokes for each action. Universal counters feature frequency, cycle, time interval, pulse width, phase, frequency ratio, duty ratio, cumulative count, and peak voltage measurements for easy, versatile measurement. As a basic piece of measurement equipment for development work and technical education, they are also ideal for introduction to production and inspection lines.

• Comparator and statistical operation function make it easy to improve the efficiency of line inspection work.
• It is easy to check the waveform amplitude by measuring the peak voltage of the input signal.

Universal Counters

Model:

SC-7217A / SC-7215A

Maker:

GRAPHTEC IWATSU Test Instruments Co., Ltd.

Features

  • Easy operations with single key strokes for each action.
  • Comparator and statistical operation function make it easy to improve the efficiency of line inspection work.
  • Unit conversion (rpm, speed, etc.) is possible using the scaling operation function.
  • It is easy to check the waveform amplitude by measuring the peak voltage of the input signal.
  • Streamline routine inspection work by saving/recalling panel setup.
  • USB, LAN, digital I/O are equipped as standard.
    ・A highly expandable set of options.
    ・RS-232 GPIB interface
    ・USB host interface
    ・High-stability clock option

Specifications

SC-7217A SC-7215A
CH-A
CH-B
Input impedance 50Ω ±1.5% / 1MΩ± 1.5%  16pF ±3pFSC-7215
Input withstand voltage 50Ω / 1MΩ 7Vrms / 200Vpk
Frequency bandwidth DC / AC DC ~ 450MHz / 10Hz ~ 450MHz
Input withstand voltage ATT OFF / ON ±2.5V / ±50V
Trigger level accuracy ATT OFF / ON ±2%±25mV / ±2.5%±500mV
Slope switching/bandwidth restriction/noise elimination +/- / 10kHz / OFF/ON
EXT-B Input signal range Pulse width/frequency 500ns min / 1MHz max
CH-C Input impedance / SWR / maximum input power 50Ω AC-coupling/2.0 or less/+30dBm
Frequency bandwidth 100MHz ~ 3GHz
AGC ON/OFF
Burst detection Functions ON/OFF
Detection sensitivity 〜1.2GHz:-20dBm
~ 3GHz : -10dBm
burst detection delay time 10μs
Measurement function FREQ A, FREQ B Digits Up to 12 digits (at 1 second gate)
Measurement range At single: 6mHz ~ 250MHz,Time/at EXT-B gate: 12mHz ~ 450MHz
(However, the synchronization of the measured signal must be less than or equal to ⅓ of the gate time)
gate selection Single/EXT-B/time
FREQ C Digits Up to 12 digits (at 1 second gate)
Measurement range 100MHz to 3GHz 1/16 prescaler
gate selection EXT-B/time
FREQ LINE Measurement range/gate selection 45Hz to 440Hz/time
PERIOD A Measurement range Single/time At single: 4ns to 166s (synchronization of the measured signal must be less than or equal to ⅓ of the gate time)
Gate selection Time/at EXT-B gate: 2.2ns ~ 83s
DUTY A Input signal range Pulse width/frequency 6ns min / 80MHz max
Measurement range Single/time 0.01μ~ 99.999,999,99% / 0.2μ ~ 99.999,999,8%
Gate selection Single/time
PULSE WIDTH A Input signal range Pulse width/frequency 6ns min / 80MHz max
Measurement range Single/time 6ns to 171s/6ns to approx. 1/2 gate time
Gate selection Single/time
TIME INTERVAL A→B Input signal range Pulse width/frequency 6ns min /80MHz max
Measurement range Single/time 6ns to 10,995s / 6ns to approx. 1/2 gate time
Gate selection Single/time
FREQ A/B Input signal range frequency 250MHz max
Measurement range/gate selection

1E-9 to 1E +9 / time
PHAS A→B Input signal range Pulse width/frequency 6ns min / 80MHz max
Measurement range Single/time 0.1μ ~ 359.999,999,9° / 1μ ~ 359.999,999°
(However, the period of the measured signal must be less than or equal to 1/2 of the gate)
Gate selection Single/time
TOT A Input signal range Pulse width/frequency 2ns min / 250MHz max
Gate selection/measurement range ANUAL / EXT-B / time / 0 to 4,294,967,295 count
Peak voltage measurement Measurement frequency/Measurement speed 150Hz ~ 150MHz /2秒以下
Measurement voltage range ATT OFF / ATT ON ATT OFF :±2.5V 
ATT ON:±50V
Time gate Setting range 10μs ~ 10s
Setting resolution 10μs ~ 990μs: 10μs,
0.1ms ~ 9.9ms: 0.1ms,
1ms ~ 99ms: 1ms,
10ms ~ 990ms: 10ms,
0.1s ~ 10s: 0.1s
However, the setting range of FREQ LINE is from 0.1s to 10s.
Measurement action/operation Repeat/single/HOLD/smoothing (moving average), scaling, comparator, statistics (MAX, MIN, σ, average)
Panel setup/data storage Internal memory (10) or USB memory (option)/up to 500,000 (volatile memory)
Internal reference clock Temperature characteristics ±1 ppm (range of 0 to +40°C with +25°C as reference)
Changes over time/short-term stability ±0.1ppm/month, ±1ppm/year /±1ppb/s
Interface USB / LAN / DIO USB2.0 HS/100base-TX/Output: HI/LO/GO/BUSY
10MHz STD IN Input impedance/input frequency/input sensitivity Approx. 850Ω (at 10MHz) AC coupling/10MHz ±50Hz/100mVrms
Marker/STD output Functions STD/marker is selected and output according to the setting
Output impedance/marker output/STD output 50Ω ±10%/+1Vo-p (0V output when measuring p)/10MHz sine wave 1Vp-p or more (50Ω when terminated)
Power supply Voltage, frequency 100V ~ 240V ±10% / 50 ~ 60Hz±5%(100V ~ 240V) / 400Hz±10%(100V ~ 120V)
Power consumption 70VA(35W) max
External dimensions/mass Approx. 210W × 99H × 353D mm/Approx. 3kg
Accessories Product user’s guide, manual (CD), power cord
Environmental 0°C to +40°C 80%RH or less no condensation

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