日本岩崎iwatsu多功能通用计频器 数字频率计 sc-7205h sc-7206h sc-7207h sc-7215sc-7217
产品特点：
easy operation with one key, one action
easy-to-read fluorescent display providesdetailed information display of 5x7 dots.
* full-spelling display guide strongly supportsoperation
auto trigger function eliminates trigger levelsettings. trigger level also can be set manually.
comparator and statistical calculation functionseasily make in-line operations more efficient.
capable of unit conversion (rpm, speed, etc.) byusing the scaling calculation function.
waveform amplitude measurement at peak voltagefor input signal can be checked easily.
save/recall function of panel setup helpsin-line application more efficient.
full remote control via standard equipped gp-ib(option sc-701 for sc-7205h) or rs-232 interfaces.
* 200 data/sec high-speed real-time data transfercontributes to the improvement of line throughput.
option provide wide expandability
comparator output via digital i/o (sc-702).external trigger input.
* 150ma, 50v output sufficient to be used in linemonitoring equipment as is.
measuring function (selection guide) * sc-7206h is not equippedwith ext-b gatemeasuring functions gate model
internal ext-b manual sgl sc-7207h sc-7206h sc-7205h
freq-a (frequency)
freq-b (frequency)
freq-line (frequency)
freq-c (frequency)
peri-a (period)
duty-a (duty cycle)
p.w-a (pulse width)
tot-a (totalize)
t.int a-b (time interval)
freq a/b (frequency ratio)
phas a-b (phase)
peak voltage a - - - -
peak voltage b - - - -
:selectable :disabled :disabled for 1ms and 10ms
产品详细参数：
frequency a (freq-a)
•measuring range and resolution   *sc-7206h is not equipped with ext-b gate
sc-7207h sc-7206h, sc-7205h
reference time
(reference frequency) 10ns(100mhz) 100ns(10mhz)
range dc 6mhz to230mhz 0.6mhzto 230mhz
ac 10hz to230mhz
resolution and count method frequency below 100mhz 100mhz or more below 10mhz 10mhz or more
count method reciprocalcount direct count reciprocalcount direct count
1ms gate 5 digits 1khz 4 digits 1khz
10ms gate 6 digits 100hz 5 digits 100hz
0.1s gate 7 digits 10hz 6 digits 10hz
1s gate 8 digits 1hz 7 digits 1hz
10s gate 9 digits 0.1hz 8 digits 0.1hz
ext-b gate * reciprocal count method: the number of digits is determined byexternal gate time
sgl gate reciprocal count method: the number of digits is determined bymeasured signal
  >> frequency measurement errorin universal counters
ac line frequency (freq-line) (forsc-7207h and sc-7205h only)
•measuring range and resolution
sc-7207h sc-7205h
reference time 10ns 100ns
range 45hz to440hz
resolution 0.1s gate 7 digits 6 digits
1s gate 8 digits 7 digits
10s gate 9 digits 8 digits
frequency c (freq-c) (for sc-7207h andsc-7206h only)
•measuring range and resolution
sc-7207h sc-7206h
reference time
(reference frequency)
10ns(100mhz) 100ns(10mhz)
range
(for ac coupling only)
100mhzto 3ghz
1/16 prescaler 100mhzto 2ghz
1/16 prescaler
resolution and count method measured signal below 1.6ghz 1.6ghz or more below 160mhz 160mhz or more
count method reciprocalcount direct count reciprocalcount direct count
1ms gate 5 digits 10khz 4 digits 10khz
10ms gate 6 digits 1khz 5 digits 1khz
0.1s gate 7 digits 100hz 6 digits 100hz
1s gate 8 digits 10hz 7 digits 10hz
10s gate 9 digits 1hz 8 digits 1hz
ext-b gate reciprocal count method: the number of digits is determined byexternal gate time notequipped with ext-b
period a (peri-a)
•measuring range and resolution  *sc-7206h is not equipped with ext-b gate
sc-7207h sc-7206h, sc-7205h
reference time 10ns 100ns
range dc couple 5ns to 171s 5ns to 1,717s
ac couple 5ns to0.1s
resolution
1ms gate 5 digits 4 digits
10ms gate 6 digits 5 digits
0.1s gate 7 digits 6 digits
1s gate 8 digits 7 digits
10s gate 9 digits 8 digits
ext-b gate * thenumber of digits is determined by external gate time
sgl gate thenumber of digits is determined by measured signal
duty ratio a (duty-a)
•measuring range and resolution
sc-7207h sc-7206h, sc-7205h
inputsignal frequency range same asfreq-a
measuring range sgl gate 0.01µ to99.999,999,99 [%]
internal gate 0.2µ to 99.999,999,8[%] 2µ to 99.999,998[%]
measuring resolution sgl gate 10ns/inputperiod
x 100 [%] 100ns/inputperiod
x 100 [%]
average count ofinternal gate
1 to 24 10ns/average inputperiod
x 100 [%] 100ns/average inputperiod
x 100 [%]
25 to 2,499 1ns/average inputperiod
x 100 [%] 10ns/average inputperiod
x 100 [%]
2,500 to249,999 100ps/average inputperiod
x 100 [%] 1ns/average inputperiod
x 100 [%]
250,000 to24,999,999 10ps/average inputperiod
x 100 [%] 100ps/average inputperiod
x 100 [%]
25,000,000 ormore 1ps/average inputperiod
x 100 [%] 10ps/average inputperiod
x 100 [%]
pulse width a (p.w-a)
•minimum pulse width: 6ns
•maximum repetitive frequency: 80mhz
•measuring range and resolution
sc-7207h sc-7206h, sc-7205h
reference time 10ns 100ns
measuring range sgl gate 10ns to 171s 100ns to 1,717s
internal gate (1msto 10s) 10ns to approx. 1/2gate time 100ns to approx. 1/2gate time
measuring resolution sgl gate 10ns to 100ns 100ns to 1ms
average count ofinternal gate
1 to 24 10ns 100ns
25 to 2,499 1ns 10ns
2,500 to249,999 100ps 1ns
250,000 to24,999,999 10ps 100ps
25,000,000 ormore 1ps 10ps
time interval a --> b (t.int a -->b) (for sc-7207h and sc-7205h only)
•minimum time interval: 6ns
•maximum repetitive frequency: 80mhz
•measuring range and resolution
sc-7207h sc-7205h
reference time 10ns 100ns
measuring range sgl gate 10ns to 10,955s 100ns to109,951s
internal gate (1msto 10s) 10ns to approx. 1/2gate time 100ns to approx. 1/2gate time
measuring resolution sgl gate 10ns to 10µs 100ns to 100µs
average count ofinternal gate
1 to 24 10ns 100ns
25 to 2,499 1ns 10ns
2,500 to249,999 100ps 1ns
250,000 to24,999,999 10ps 100ps
25,000,000 ormore 1ps 10ps
frequency ratio a/b (freq a/b) (forsc-7207h and sc-7205h only)
•measuring range and resolution
sc-7207h sc-7205h
inputsignal frequency range bothch-a and ch-b are the same as that for freq-a
measuringrange internal gate (1msto 10s) 1e-9 to1e+9
measuringresolution internal gate (1msto 10s) 1+log(ch-a input frequency x gate time) digits
phase measuring a --> b (phas a -->b) (for sc-7207h and sc-7205h only)
•minimum time interval: 6ns
•maximum repetitive frequency: 80mhz
•measuring range and resolution
sc-7207h sc-7205h
reference time 10ns 100ns
measuring range sgl gate 0.1µ to359.999,999,9 [°]
internal gate 1µ to 359.999,999[°] 10µ to 359.999,99[°]
measuring resolution sgl gate 0ns/inputperiod
x 360 [°] 100ns/inputperiod
x 360 [°]
average count ofinternal gate
1 to 24 10ns/average inputperiod
x 360 [°] 100ns/average inputperiod
x 360 [°]
25 to 2,499 1ns/average inputperiod
x 360 [°] 10ns/average inputperiod
x 360 [°]
2,500 to249,999 100ps/average inputperiod
x 360 [°] 1ns/average inputperiod
x 360 [°]
250,000 to24,999,999 10ps/average inputperiod
x 360 [°] 100ps/average inputperiod
x 360 [°]
25,000,000 ormore 1ps/average inputperiod
x 360 [°] 10ps/average inputperiod
x 360 [°]
accumulation measuring (tot-a)
minimum pulse width 2.5ns
input frequency range same as that for freq-a
measuring range 0 to 4,294,967,295 counts whenscaling calculation is set to off
measuring error ±1 [count] (only when gateopens/closes)
peak voltage measuring (sc-7206h is notequipped with ch-b)
measures and displays in real-time thevoltage amplitude of the measured signal at ch-a or ch-b.
frequency range 150hz
response time 2 seconds or less
voltage range ±2.50v (att off, resolution: 10mv),±50.0v (att on, resolution: 100mv)
measuring error att off: 10% of indication±50mv
att on: not specified
ch-a, ch-b input terminal (sc-7206h is notequipped with ch-b)
input rc approx. 1mw/20pf or less
coupling ac or dc
low pass filter off, 10khz
attenuator off, 26db (1/20)
trigger level measuring range att
off -2.50v to +2.50v
(resolution: 10mv)
att
on -50.0v to +50.0v
(resolution: 100mv)
accuracy
(0°c to +40°c) att
off 10% ±30mv of the set value
(±3% when +2v to -2 v )
att
on 10% ±300mv of the setvalue
(±3% when +40v to -40 v )
operating input voltage range att off ±2.5v
att on ±50v
input sensitivity manual trigger att
off 30mvrms (dc to 230mhz)
att
on 0.6vrms (dc to 230mhz)
auto trigger att
off 200mvrms
(10khz to 230mhz, sine wave)
att
on 4vrms
(10khz to 230mhz, sine wave)
ch-c input terminal (for sc-7207h andsc-7206h only)
maximum input power +30dbm (approx. 7vrms when1mw/50w = 0dbm as areference)
impedance approx. 50w
coupling ac
vswr 2.0 or less (sc-7207h: 100mhz to3ghz, sc-7206h: 100mhz to 2ghz)
input sensitivity (sine wave: up to 2 ghz forsc-7206h)
agc off/on -20dbm (100mhz
-25dbm (300mhz
-20dbm (1.5ghz
burst detection detection frequency range sc-7207h 100mhz to 3ghz
sc-7206h 100mhz to 2ghz
input sensitivity (sine wave: up to2ghz for sc-7206h)
agc
off -20dbm (100mhz
-10dbm (1.2ghz
detection delaytime 500µs
(burst period >= set gate + 500µs)
10mhz std in
bnc terminal for more stable input of theexternal reference frequency
frequency 10mhz±50hz (±5ppm)
amplitude 1vrms to 5vrms, threshold = 0v
input resistance approx. 6.4kw
input coupling ac
10mhz std out/(marker out)
bnc terminal for output of internal referenceoscillator or marker signal.
marker signal is a signal that presupposes the brightnessmodulation (z axis) of the analog oscilloscope. it is enabled atthe sgl gate when the function is in between the time interval(t.int a -->b) and phase (phas a --> b). output is lolevel from the start of ch-a measuring to the start of ch-bmeasuring.
output cmos level
reference frequency output 10mhz: stability is the same asthat for the internal reference oscillator.
marker output in the 5mhz band, l is outputduring actual measuring.
(for sc-7207h and sc-7205h only. marker selection is disabled withsc-7206h.)
output interface
•rs-232 is equipped as standard
•gp-ib is equipped as standard (option sc-701 for sc-7205h)
•digital i/o option can be installed (sc-702)
environmental conditions
•warm-up time: 60 minutes or more
•operating temperature/humidity: 0°c to +40°c/85%r.h or less (nocondensation)
•storage temperature/humidity: -20°c to +60°c/90%r.h or less (nocondensation)
reference oscillator
equipped with sc-7207h, sc-7206h and sc-7205has standard
output is possible to the 10mhz out bnc terminal on the rear panelof the main unit.
•oscillation frequency: 10mhz
•temperature characteristics: ±2.5ppm/unit environmentaltemperature: 0°c to +40°c
•aging rate: ±1.0ppm/year
power supply conditions and power supplyvoltage changes (factory option)
•voltage: ac100v / 110v to 120v / 220v to240v
•frequency: 50hz, 60hz, 400hz
•power consumption: at ac100v with optional sc-701 and sc-702 areinstalled.sc-7207h 36va max
sc-7206h 33va max
sc-7205h 31va max
size
(210±2)w x (99±2)h x (353±2)l mm
(excluding options and protruded parts)
weight
4.0kg or less (including optional sc-701 andsc-702)
accessory
power cord (1), operation manual cd-rom(including options) (1)

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长沙力高捷创仪器有限公司
吴玉进
18665876229
中意一路66号亚商大厦A栋2524室