Click Image to Enlarge Protek B2000

0.1Hz to 2GHz Frequency Range Measures Frequency, Period, Time interval, Ratio and Totalize 0.5 PPM temperature stability Channel A and Channel B have variable trigger level controls Large, bright 8 digit LED frequency display along with function and gate time indicators Self check Low pass filters and X10 attenuators All functions selected via tactile switches

Download Data Sheet

Frequency Measurement Channel A Input

Ranges Low Range: 0.1Hz to 10MHz High Range: 10MHz to 100MHz Best Resolution Low range: 0.1Hz High range: 10Hz Gate Time 0.01s to 10s in 4 decade switch settings Accuracy ±1 count ± (timebase error) X frequency

Frequency Measurement Channel C Input

Range 90MHz to 2GHz Best Resolution 10Hz Gate Times 0.0256s, 0.256s, 2.56s, 25.6s switch selectable Accuracy ±1 count ± (timebase error) X frequency

Period Measurement Channel A Input

Ranges 100ms to 500ns Gate Time 0.01s to 10s in 4 switch selectable settings Best Resolution 100ps Accuracy ±1 count ± timebase error; ± Trigger error Minimum Pulse Width 250ns

Totalize Measurement Channel A Input

Frequency Range DC to 10MHz Count Capacity 0 to 99,999,999 Resolution ±1 input count

Time Interval CH A & CH B Inputs

Range 200ms to 500ns Accuracy ±1 count ± timebase error ± CH A Trigger error Best Resolution 100ns Minimum Pulse Width 250ns

Ratio A/B CH A & CH B Inputs

Range CH A: 10MHz to 100MHz CH B: 0.1Hz to 10MHz

Input Characteristics Channel A Input

Sensitivity 25mV RMS 0.1Hz to 100MHz Attenuation X1 or X10 Input Impedance 1MW + 35pF Coupling DC & AC Lowpass Filter (-3dB) 10Hz to 100kHz @ X1 Max. Voltage 250V DC or AC RMS Trigger Level From -350mV DC to +350mV DC

Input Characteristics Channel B Input

Sensitivity 25mV RMS 0.1Hz to 100 MHz Attenuation 0dB or 20dB Input Impedance 1MW + 35pF Coupling AC & DC Lowpass Filter (-3dB) 10Hz to 100kHz Max. Voltage 250V DC or AC RMS Trigger Level From -350mV DC to +350mV DC

Input Characteristics Channel C Input

Sensitivity 50mV RMS, 90MHz to 2GHz Max. Input Voltage 3V RMS Input Impedance 50W Coupling AC

Timebase

Frequency 10MHz & 3.90625MHz (Temperature controlled Oven) Stability Long Term: ±3x10-7 per month Temperature: ±5x10-7, 0 to 30°C Warm Up Time 20 minutes (25°C)

10MHz Oscillator Output

Output Voltage 1V P-P (open circuit) Output Impedance 50W

General Specifications

Display 8 Digit LED (14mm) Power Requirements AC line voltage 100/120/220, 240V ±10% Power Consumption 15V A, 50/60Hz Operating Temperature 0 to 40°C Size 3.4" H x 10.4" W × 9.0" D Weight 5 lbs. Supplied Accessories Manual, Line cord, BNC cable