TN138 Respiratory Resistance Tester
Description: The TN138 Respiratory Resistance Tester measures inspiratory and expiratory resistance of respirators and mask-type protective equipment under specified conditions. It is used by national labor protective equipment inspection agencies and mask manufacturers to ensure mask fitness, as required by national standards.
Specifications:
- Flowmeter Range: 0–100 L/min
- Flowmeter Range Accuracy: ±2%
- Micro-pressure Measuring Range: -1000 Pa to 1000 Pa
- Micromanometer Accuracy: 1 Pa
- Pumping Capacity (Suction): ≥100 L/min
- Ventilation: Constant (85 ± 1) L/min
- Power Supply: 220V, 50 Hz
- Net Weight: 15.2 kg
- Net Dimensions: 315 x 415 x 305 mm (L x W x H)
Standards:
- GB 2626-2006
- GB/T 32610-2016