TPI 621 Dual Input Differential Manometer
Built for hand-held pressure testing, the TPI 621 Dual Input Differential Manometer measures positive, negative and differential pressure. Its dual-input design supports work on regulators, switches, delivery pressures and combustion equipment. Users can select from seven pressure units to match the task or existing records.
For day-to-day use, readings appear on a four-digit backlit screen that remains clear in low-light areas. The TPI 621 Dual Input Differential Manometer also provides manual zeroing and a smoothing mode to steady rapidly changing readings. A protective boot, tilt stand, auto power-off and 995 mBar over-pressure protection support practical use during testing and maintenance.
The instrument operates from one supplied 9 V battery and has a stated typical battery life of 80 hours. Its measuring range extends from -300 mBar to +300 mBar, while the listed accuracy is ±0.5% ±5 digits. A three-year manufacturer’s guarantee is also supplied, subject to the stated terms and conditions.
Key Benefits
- Measures positive, negative and differential pressure with one hand-held instrument.
- Provides seven selectable units, helping users match different test procedures and records.
- Uses a backlit screen to improve reading visibility in poorly lit work areas.
- Includes a smoothing function that helps stabilise readings when pressure fluctuates.
- Offers manual zeroing so users can establish a clear reference before testing.
- Protects the instrument against over-pressure up to 995 mBar.
- Switches off automatically after 40 minutes to help conserve battery power.
- Uses a protective boot and tilt stand for practical handling and viewing during tests.
- Supports extended field use with a stated typical battery life of 80 hours.
Common Applications
TPI 621 Dual Input Differential Manometer is suitable for a range of testing, maintenance and inspection tasks, including:
- Adjusting pressure regulators
- Setting delivery pressures
- Performing pressure tightness tests
- Carrying out let-by tests
- Completing standing pressure tests
- Checking burner pressures
- Testing pressure switches
- Investigating pressure loss and leakage
Why Choose This Model?
This model suits users who need dual-input differential pressure measurement, seven selectable units and a wide ±300 mBar range. No alternative model specifications were supplied for a direct model-to-model comparison.
