Description
The Testo 316 Series comprises precision electronic leak detection instrumentation engineered for mission-critical maintenance across fuel gas piping networks and HVAC/R refrigeration circuits. Featuring the Testo 316-1 Methane Gas Leak Detector and the Testo 316-3 Refrigerant Leak Detector, this hardware platform delivers high-fidelity acoustic and optical alert systems built around resilient semiconductor and heated diode sensor architectures. Manufactured under Testo Original Engineering standards, these handheld instruments eliminate diagnostic downtime during commissioning, safety audits, and predictive maintenance protocols.
TESTO 316-1 TECHNICAL SPECIFICATIONS (GAS LEAK DETECTION)
Application Matrix: Natural Gas, Methane (CH4) Pipe Infrastructure
Sensor Type: Semiconductor Catalytic Bead
Measuring Range: 0 to 10,000 ppm CH4
First Alarm Threshold: ~200 ppm CH4 (Optical Yellow LED)
Second Alarm Threshold: ~10,000 ppm CH4 (Optical Red LED, Acoustic Tone)
Probe Configuration: Semi-flexible gooseneck shaft for confined conduit routing
Response Time (t90): < 5 seconds
Operating Temperature: +4 °C to +45 °C
Operating Humidity: 0 to 95 %RH non-condensing
Power Supply: 9V Block Battery (6F22)
Battery Runtime: Approximately 5 hours continuous operation
Housing Material: Impact-resistant ABS Polymer
Dimensions: 190 x 57 x 42 mm (excluding probe)
Weight: 300 g
Certifications: DVGW approval, CE Compliance
TESTO 316-3 TECHNICAL SPECIFICATIONS (REFRIGERANT LEAK DETECTION)
Detectible Media: CFC, HCFC, HFC, HFO (R-22, R-134a, R-404A, R-410A, R-507, R-32, and blends)
Sensor Type: Heated Diode Sensor with integrated intake filter
Sensitivity Threshold: 4 g/a (0.15 oz/yr) according to EN 14624
Response Time: Instantaneous (< 1 second)
Warm-Up Period: < 20 seconds
Zeroing Logic: Automatic background drift compensation
Operating Temperature: -20 °C to +50 °C
Storage Temperature: -20 °C to +50 °C
Power Supply: 2 x D-cell 1.5 V Batteries
Battery Runtime: Approximately 16 hours continuous duty
Dimensions: 270 x 65 x 65 mm (excluding flexible probe)
Weight: 400 g (including batteries)
Standards Compliance: EN 14624, SAE J1627
INDUSTRIAL APPLICATION PROFILE
In industrial boiler rooms, natural gas transfer hubs, and municipal utility metering stations, the Testo 316-1 provides early-stage fugitive emission tracking on threaded joints, isolation valves, and pipe unions where thermal expansion induces micro-fissuring. In contrast, the Testo 316-3 is purpose-built for commercial chiller loops, cold storage rack systems, and process cooling circuits. Its heated diode sensor delivers high selectivity against chemical background noise, locating low-volume refrigerant losses without false-triggering in contaminated machine-room atmospheres.
SYSTEM INTEGRATION AND LOGISTICS
Technical Compatibility: Compatible with standard industrial inspection toolkits, NPT/BSP fitting arrays, and standard HVAC manifold servicing kits.
Calibration and Maintenance: Field-replaceable sensor heads and standard zero-point adjustment support field readiness.
Lead Time: Standard stock delivery within 3 to 5 business days; global dispatch availability verified per order volume.
Key Attributes
Type: Gas Leak Detector
Place of origin: Germany
Customized support: OEM, ODM
Model number: 316-1
Brand name: Testo
Material: Plastics
Power: Battery powered
Warranty: 1 years
Measuring Range: 100 to 10,000 ppm CH4
Lower Response Thresholds: 100 ppm
Operating Temperature: 39 to 113°F (4 to 45°C)
Storage Temperature: -4 to 122°F (-20 to 50°C)
Operating Humidity: 0 to 95% RH
Battery Type: 9 V battery
Packaging and Delivery
Selling Units: Single item
Single package size: 35X26X15 cm
Single gross weight: 1.500 kg
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