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Hewlett-Packard HP 5335A Universal Counter - $495 (Canyon Country)
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The HP 5335A Universal Counter is a high-quality frequency
counter manufactured by HP in the United States.
With a frequency range of 200 MHz, this unit is designed
with precision and reliability. It is a single unit quantity
and is not a custom bundle or modified item, making it a
straightforward and dependable tool for testing and
measuring frequency levels in various industrial and
business settings.
This product is ideal for professionals looking for
accurate and efficient frequency measurement equipment.
Key Specs
Parameter Value / Range
Input Channels Channels A & B (standard)
Input Range (Channels A & B) DC coupled: 0 to 100 MHz
AC (1 MΩ): 30 Hz to 100 MHz
AC (50 Ω): 200 kHz to 100 MHz
Extended Range / Prescale In Frequency A / Ratio mode, Channel A can go up to 200 MHz via prescaling
Sensitivity (×1) 25 mV rms sine wave
75 mV p-p pulse at 5 ns minimum pulse width
Dynamic Range (×1) 75 mV to 5 V p-p up to 100 MHz; above 100 MHz up to 2.5 V p-p
Trigger Level Range (×1) With Auto Trigger off: adjustable –5 V to +5 V (preset 0 V)
With Auto Trigger on: nominal mid-point of input (adjustable between peaks)
Auto Trigger Range For DC coupling: 30 Hz to 200 MHz
AC (1 MΩ): 30 Hz to 200 MHz AC (50 Ω): 200 kHz to 200 MHz
Frequency (Channel A) 0 to 200 MHz (via prescale)
Period 10 ns to 10¹⁰⁷ s
Time Interval A→B 0 to 10¹⁰⁷ s
Pulse Width A 5 ns to 10¹⁰⁷ s
Resolution / Display 9 digits per second (for many measurements)
12-digit LED display (engineering format)
Accuracy / Error Terms Measurements include resolution error, trigger error, time base error, etc.
Statistics / Math Functions Supports sample size selection (n = 100 or 1,000), displays mean, standard deviation, smoothing, etc.
External Arming / Gating Yes — allows synchronization with external events
General / Other-
Function memory of front panel settings.
Overflow: shows top 12 significant digits when exceeding 12 digits.
Operating temperature: 0 to 50 °C.
Power: 100 /120 / 220 / 240 VAC (±5%, –10%), 48–66 Hz, up to ~130 VA
Dimensions- 425.5 mm × 132.6 mm × 345.4 mm (≈ 16.75" × 5.2" × 13.6"), Not including removable handles.