Elenco 100MHz x1 x10 Scope Probe - Manual (Page 2)

INTRODUCTION
The P-2E is a passive, high-impedance oscilloscope probe designed and
calibrated for use with instruments having an input impedance of 1M
Ω shunted
by 20pF. However, it may be compensated for use with instruments having an
input capacitance of 10 to 35pF. The probe incorporates a two position slide
switch in the head which selects attenuation of x1, x10 position.
SAFETY INSTRUCTIONS
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it.
• To avoid potential hazards, use this product only as specified.
• The common terminal is at ground potential. Do not connect the common
terminal to elevated voltages.
• Do not operate in an explosive atomosphere.
• Keep product surfaces clean and dry.
• If your probe requires cleaning, disconnect it from the instrument and clean
it with mild detergent and water. Make sure the probe is completely dry
before reconnecting it to the instrument.
MAINTENANCE
Before dismantling any part of the probe, make sure it is disconnected from
any voltage source. The probe body can be detached from the cable assembly
by unplugging the push-fit BNC connector from the probe body. This permits
replacement of the cable or body assembly should either part become
damaged. The probe tip is also replaceable. To replace a broken tip, hold the
black insulating part of the tip with pliers and unscrew it from the probe body.
Replace with a new tip, taking care to align with the inner contact.
COMPENSATION ADJUSTMENT
In order to obtain the correct division ratio with each oscilloscope, the
attenuation network needs to be adjusted. To compensate the probe to your
oscilloscope, apply a 1kHz square wave to the probe tip, or connect to the cal
socket on the oscilloscope to display a few cycles of the waveform and adjust
the trimmer located in the probe body for a flat-topped square wave.
SPECIFICATIONS
Position X10
Attenuation Ratio 10:1
Bandwidth DC to 100MHz
Rise Time 2.8nS
Input Resistance 10M Ω when used with oscilloscopes with 1M Ω
input.
Input Capacitance Approx. 16pF
Compensation Range 10 to 35pF
Working Voltage 600VDC including peak AC derating with frequency
(see Figure 1).
Position X1
Attenuation Ratio 1:1
Bandwidth DC to 15MHz
Rise Time 27nS
Input Resistance 1M Ω (oscilloscope input)
Input Capacitance 46pF plus oscilloscope capacitance
Working Voltage 600VDC including peak AC derating with frequency.
Operating Temperature –50 O F (–10 O C) to 131 O F (55 O C)
Humidity 85% RH or less (at 95 O F/35 O C)
Safety Meets IEC1010-1 CAT I
Cable Length 46.8” (1.2m)
Figure 1 - Voltage Derating Curve