Simpson 710 Frequency Counter

Introduction
The Simpson 710 Frequency Counter is a highly accurate, versatile instrument designed for measuring frequencies in various applications. It provides direct counting capability from 10 Hz to frequencies in excess of 60 MHz.
- General
- The 710 is intended for use in C.B. communications, servicing, production line testing, laboratory, and digital systems for industrial controls.
- Description
- This instrument features an overrange capability, nine-digit resolution, and maintains accuracy over a wide temperature range.
- Safety Considerations
- This manual contains cautions and warnings to alert users to hazardous operating conditions. Follow all instructions to ensure safety.
- Supplies and Accessories
- All necessary supplies and accessories are provided with the instrument.
Technical Data
| Specification | Details |
|---|---|
| Frequency Range | 10 Hz to 60 MHz |
| Input Impedance | 1 MΩ shunted by 30 pF |
| Temperature Range | 0°C to +45°C (Operating), -40°C to +70°C (Storage) |
| Power Requirement | 120 VAC ±10% or 230 VAC ±15% |
Installation
- General
- Instructions for installation and shipping of the 710 are provided, including unpacking, inspection, and power source requirements.
- Unpacking and Inspection
- Inspect the instrument for damage upon receipt. Report any damage immediately.
- Warranty
- The warranty covers defects in material and workmanship under normal use.
- Power Source Requirements
- Use the specified Simpson adapters to ensure safety and compliance with standards.
Controls, Connectors, and Indicators
General
All controls, connectors, and indicators are described for ease of use.
Front and Side Panel Description
| Control | Description |
|---|---|
| Power Switch | Turns input power on/off |
| MHz Switch | Selects gate time for frequency measurements |
| Hz Switch | Selects gate time for frequency measurements in Hz |
| Filter | Eliminates high frequency noise |
Operation
General
Review the shock hazard warnings before operating the 710. It measures frequencies from 10 Hz to over 60 MHz.
Safety Precautions
Only qualified personnel should operate the 710 to avoid injury. Do not work alone when a shock hazard exists.
Documents / Resources
![]() | 710 Frequency Counter |
References
- User Manualmanual.tools
Published: June 19, 2026
Updated: June 22, 2026

