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6. Operating the PeakTech
Prior to operating this instrument, it is important that it has been correctly installed as detailed in the Section 4.
The operating instructions are devided into four major groups; Frequency Counter (F/C). Function Generator (F/G),
DC Power Supply (DPS) and Digital Multimeter (DMM).
Throughout these sections, warnings identify potentially dangerous procedures. Instructions contained therein must
be observed.
6.1. Operating the Frequency Counter
Check the line voltage and fuse ratings before connecting to the power outlet. Be sure to turn on F/C power switch
located on the rear panel. For stabilizing the counter, warm-up time of 20 minutes is required, before commencing
measurements.
6.1.1. Specification
Input frequency measurement
Measuring range
Channel A
Channel B
Input Voltage
Channel A
Channel B
Maximum Input Voltage
Channel A
Channel B
Input Impedance
Channel A
Channel B
Time Base
Channel A and B
Resolution
Channel A
Channel B
Operating temperature
Storage temperature
Power Consumption
Coaxial cable
(with BNC connector)
6.1.2. Start-Up
*
Check conductors of the A and B channels are in good condition
*
Connect the AC power cable to the recess power receptable and plug it into three-contact electrical outlet
*
Turn on the Power switch
*
Turn on the Power switch of F/C located on the rear panel. "0" will be displayed.
*
Set the display Option key (21, Fig. 1) at F/C position.
*
Set the Gate time switch (4, Fig. 1) at 1 S position.
*
Set the Channel Select Switch (5, Fig. 1) at Channel A position.
®
4120
1 Hz to 20 MHz LED display depending on Gate Time and Input Signal
At least 7 Digits displayed per second of Gate Time
20 MHz to 2,7 GHz
40 mV
Sinewave or 100 mV
rms
40 mV
Sinewave
rms
35 V
pp
3 V
pp
1 MΩ
50 Ω
Switch selectable
0,1 Hz (Gate 10 s)
1 Hz (Gate 1 s)
10 Hz (Gate 0,1 s) * Gate 0,1 s * 1 kHz ~ 20 MHz only
10 Hz (Gate 10 s)
100 Hz (Gate 1 s)
1 kHz (Gate 0,1 s)
10° C to 40° C
-10°C to 50° C
35 W max.
RG-58 C/U, Impedance 50 Ω, 1 meter length
pp
-23-
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