|Elenco Precision F-1000 Counter|
|Description||1GHz Multifunction Counter|
INTRODUCTION The Elenco model F-1000 is a 10Hz to 1000MHz multiple-function counter that features a temperature control crystal oven for high accurate readings. Other features are eight high brightness seven segment LED display, low power consumption circuit design and full input signal conditioning. The F-1000 is also small in size and light weight for easy portability. The model F-1000 has four functions in one. It is a 1000MHz frequency counter with accuracy of ,3Hz/million per month. This accuracy is achieved because of the temperature control crystal oven. It also has a self-test function which allows checking the output for proper operation. The third function is a period measurement which allows you to measure time interval between pulses. The fourth function is a totalizer counter which allows you to count pulses. All these functions are accomplished by a single LSI integrated circuit. The input signal is AC or DC coupled and can be conditioned by attenuation of the signal. The location of controls, indicators, connectors and other information on this model is provided in this manual. It is recommended that you read and understand all information in this manual before attempting to operate this instrument. SPECIFICATIONS: MEASURING MODE Frequency measurements CHANNEL A. □ Range: 10Hz to 10MHz direct counter 10MHz to 100MHz prescaled by 10. □ Resolution: Direct counter: 1, 10, 100Hz switch selectable. Prescaled: 10, 100, 1000Hz switch selectable. □ Gate Time: 0.01S, 0.1S, 1S switch selectable. □ Accuracy: ± 1 count ± time base error. CHANNEL B. □ Range: 100MHz to 1GHz. □ Resolution: 100Hz, 1KHz, 10KHz switch selectable. □ Gate Time: 0.027S, 0.27S, 2.7S switch selectable. □ Accuracy: ± 1 count ± time base error. Period Measurements (Channel A) □ Range: 10Hz to 2.5MHz. □ Resolution: 10-7S, 10-8S, 10'9S switch selectable. □ Accuracy: ± 1 count ± time base error. Totalize Measurements (Channel A) □ Range: 10Hz to 10MHz. □ Resolution: ± 1 count of input. INPUT CHARACTERISTICS CHANNEL A. □ Input Sensitivity: 25mV RMS sine wave or 70mV p-p. □ Attenuation: x 1 , x 20 fixed. □ Impedance: Approx. 1M ohm less then 35 pF. □ Maximum voltage: 250V (DC + AC rms). Exceeding this limit is not recommended. CHANNEL B. □ Input Sensitivity: 15mV RMS sine wave or 50mV p-p. □ Impedance: Approx. 50 ohm. □ Maximum voltage: 3V. Exceeding this limit is not recommended. TIME BASE □ Frequency: 10MHz, 3.90625MHz Temperature Control Oven. □ Aging Rate: ± 3 x 10'7/monjh. □ Temperature: ± 1 x 10‘6, 0°C to 40°C. □ Line Voltage: ± 1 x 10'7 for 10% change. □ Warm-up time: 20 minutes when cold started at 25°C. GENERAL □ Display: 8 digits, 7mm red LED display with decimal point, gate, overflow, KHz, MHz and uS indication. □ Check: Counts internal 10MHz time base oscillator. □ Power Requirement: Line: 115/230V ± 15%, 45Hz-70Hz. Internal Battery: Option. □ Temperature: Rated range of use: - 5°C - + 50°C.
These manuals are available for the above equipment:
|Elenco Precision -- F-1000 -- Service and User Manual|
|Manual Type||Service and User Manual|
|Size||421.91 Kbytes (432038 Bytes)|
|Quality||Scanned document, all readable.|
|Upload date||07 March 2015|
|Downloads||159 since 07 March 2015|
This is the user manual with schematics & calibration routine of Multifunction Counter Elenco F-1000. There are several others brand that use the same model : Elix 8100A, Tenma 72-640, Protek B-818 and several others that have the model as 8100A INTRODUCTION AND SPECIFICATIONS OPERATION 1. Introduction 2. Preparation For Use 3. Front Panel Features 4. Operating Characteristics A. Frequency Measurements B. Period Measurements C. Totalize Measurements D. Check Mode CALIBRATION 1. Introduction 2. Test Instruments Required 3. Time Base Radio Frequency Adjustment 4. Trigger Level Adjustment SCHEMATIC DIAGRAMS PARTS LIST
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