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Table of Contents
Related Manuals for SISCO HC-F1000L
Summary of Contents for SISCO HC-F1000L
- Page 1 Frequency Counter HC-F1000L Operation Manual...
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Page 2: Table Of Contents
TABLE OF CONTENTS Introduction & specification-------------------------------------1 Introduction------------------------------------------------------------1 Specification------------------------------------------------------------1 Operation--------------------------------------------------------------5 Introduction--------------------------------------------------------5 Preparation for use--------------------------------------------------5 Front panel features --------------------------------------------------5 Measurement--------------------------------------------------------------8 Frequency measurements------------------------------------------8 Period measurements-----------------------------------------------9 Calibration------------------------------------------------------------ 10 Introduction------------------------------------------------------- 10 Test instruments required--------------------------------------- 11 Time base frequency adjustment---------------------------------11 Trigger level adjustment--------------------------------------------- 12... -
Page 3: Introduction & Specification
SECTION 1 INTRODUCTION & SPECIFICATION 1. INTRODUCTION The HC-F1000L is a 10Hz to 1000MHz multiple-function Frequency Counter (max. up to l.3GHz). It features an eight digit high brightness seven segment LED display, four function performance, low power consumption circuit design, small size, light weight, high stabilized crystal oven oscillator for measurement of accuracy and full input signal conditioning. - Page 4 CHANNEL A Range: 1Hz-100MHz Resolution: Max. 1Hz Gate time: 0.01s/0.ls/ls selectable Accuracy: ±l count ±time base error x frequency CHANNEL B Range: 100MHz-lGHz-1.3GHz Resolution: Max. 100Hz Gate time: 0.01s/0.ls/ls selectable Accuracy: ±l count ±time base error x frequency Period Measurements (Channel A) Range: 1Hz to10MHz Resolution:...
- Page 5 B. Input Characteristics CHANNEL A Input sensitivity : 1Hz~10Hz 30mVrms 10Hz~80MHz 20mVrms 80MHz~100MHz 30mVrms Attenuation : x 1, x 20 fixed Filter (CH-A only) : Low pass : ~100KHz~3dB ~150KHz~3dB at 20dB ATT Impedance : Approx. lMΩ , <3pF Maximum voltage without damage: 250Vrms (DC+AC) CHANNEL B Input sensitivity : 100MHz~1GHz...
- Page 6 C. Time Base Frequency: 10MHz Stability: Better than ± 2x10 / day Output: “0” level: 0V~0.8V “1” level: 3V~5V D. General Display : 8 digit 7mm red LED display with decimal point, gate, overflow, kHz, MHz and µs indication. Check : Counts internal 10MHz time base oscillator Power requirement: Line 115/230V ±...
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Page 7: Operation
E. Supplied Accessories: Power cord Operating Manual 3. OPERATION 3.1 Introduction This section provides complete operating information needed for this multifunction counter. This section includes a description of all front panel controls,-connectors and indicators, operating instructions, operator's maintenance. 3.2 Preparation For Use 1) Line Power Requirements It requires a Line Power of 115 or 230VAC 45 to 65Hz single phase. - Page 8 1) Power switch : Press the push-button to turn it on, and press the push-button again to turn it off. 2) REST : When the button is pressed, the counter is reset to original state. 3) FA : Channel A selection. With selecting one of the Gate Times, frequency measurement can be done from CH-A.
- Page 9 4) FB : Channel B selection. With pressing this key and selecting one of the Gate Times, frequency of signal connected to CH-B can be measured. 5) PA : With pressing this key, Period Measurement mode for CH-A is selected. 6) 0.01s : 0.01 second selection of GATE TIME.
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Page 10: Measurement
13) µs : Micro-second indicator. It turns on when in Period measurement. 14) Hz : Hertz indicator. It turns on when measured frequency is lower than 1kHz. 15) kHz : Kilo-Hertz indicator. It turns on when measured frequency is ≥1kHz and <1MHz. 16) MHz : Mega-Hertz indicator. -
Page 11: Period Measurements
4.1.4 When using CH-A, set ATT. at X20 if input signal level is greater than 300mV. Turn Low-Pass filter on, if frequency of input signal is lower than 100kHz. 4.1.5 Read the frequency on display, and observe the unit of measurement indication to the right of the display. -
Page 12: Calibration
5. CALIBRATION 1. INTROUCTION Calibration of Time Base Oscillator Frequency and Trigger Level is needed after a certain time of usage. Time base oscillator adjustment should be made whenever the oscillator is repaired. Or whenever it is determined that accuracy of the counter is not within the accuracy desired. -
Page 13: Test Instruments Required
2. INSTRUMENTS REQUIRED INSTRUMENT BRIEF SPECIFICATION 1) Quartz oscillator Range : 10MHz,lGHz,1.3GHz Temperature coefficient: ±lxl0 2) Sine wave generator Range:lKHz-lGHz-l.3GHz 3. TIME BASE FREQUENCY ADJUSTMENT CH-A Time Base 1) Remove the counter from the case. 2) Select a 10MHz output on the quartz oscillator < i.e. house standard>... -
Page 14: Trigger Level Adjustment
4)While observing the counter display, adjust the time base oscillator control(C25 located on the oven )to obtain a reading of 10000.00±1 digit. CH-B Time Base 1) Remove the counter from the case. 2) Select a 1GHz output on the quartz oscillator (i.e. house standard ) and connect the 1GHz signal to the counter B. - Page 15 4) Set the front panel controls as follow: POWER--------------------------------------------------------------- ON NOR/HOLD--------------------------------------------------------- NOR GATE TIME--------------------------------------------------- 1s FUNCTION---------------------------------------------------PA, 10MHz ATT--------------------------------------------------------------------X 1 5) With observing the counter display, adjust the trigger level to proper value.
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