Clamp meter BLOW 51-211# analog large display, 100 A current range

Clamp meter BLOW 51-211# analog large display, 100 A current range is an analog current measuring instrument designed for quick and direct reading of alternating and direct currents up to 100 A. The instrument combines a clamp-style jaw for non-contact current measurement with a large analog dial that provides clear needle indication, allowing fast assessment of current flow in cables, installations and appliances. The compact body and simple control layout make it suitable for field use and routine maintenance checks by electricians and service technicians.

Advantages

The large analog display ensures immediate visual indication of current changes and trends without the need for a power-hungry digital interface. The clamp jaw enables non-invasive measurements, eliminating the need to disconnect conductors and reducing measurement time. Mechanical robustness and a straightforward control scheme reduce the learning curve for users familiar with analog meters. The device is suitable for environments where visual needle movement is preferred for observing transient currents and gradual variations.

Suitable for

• Quick current checks on household and industrial wiring
• Fault finding and troubleshooting in electrical installations
• Maintenance inspections of motors and appliances
• Measuring current during equipment start-up and load tests

Key specifications

• Measurement type: alternating current (AC) and direct current (DC)
• Maximum current range: up to 100 A
• Display type: large analog dial with pointer
• Measurement method: clamp jaw for non-contact conductor measurement
• Body: handheld form factor suitable for field use

How to use

Switch the clamp meter to the appropriate current mode (AC or DC) and position the clamp jaw around a single conductor to perform a non-contact measurement. Read the current value directly from the analog dial pointer. For repeatable results, ensure the conductor is centered in the jaw and avoid clamping multiple conductors simultaneously. Turn off the instrument after use and store it in a dry, dust-free place.

Usage recommendations

When measuring, verify selected mode (AC/DC) matches the circuit type and keep hands clear of live connections. For more accurate readings, hold the meter steady with the conductor centered in the jaw and avoid nearby conductive objects that may influence the measurement.