Insertion Probe Flow Meter
Thermal Instrument Model # 62-9 is a versatile flow measurement solution for both liquid and gas flows in larger pipe sizes, ventilation ducts, and stacks. The insertion probe style is adaptable to various line sizes and offers a variety of process connections.
Description
The Thermal Mass Probe Flow meter is inserted directly into the flow stream to measure the flow rate of gases, liquids, or slurries in piping, irregularly shaped lines, and process ducts. Unlike other probe flow meters, we offer a model that has no apertures that can be clogged with particles or distorted by wear. Our sensors are enclosed in a sealed tube which can be inserted or removed through a gate valve or a packing gland while conduit is in use.
Why are our flow meters so reliable and accurate?
Our Thermal Mass Flow Meters operate using a constant temperature system that employs two RTD sensors; one for sensing temperature, and one for sensing flow. The sensor is heated to a precise temperature above that of the fluid passing by. The Fluid conducts heat off the sensor in direct proportion to the mass flow rate. The temperature is used to set the heat on the flow sensor and correct for changes in the fluid temperature.
Enhanced Capabilities available with our Dual-Tip Probe (Model 62-9DT):
We have increased the capabilities of our Model 62 insertion probe. This unit can now be installed in line sizes as small as 1 1/2″ in diameter. Some of the features are:
- High Gas Flow Rates
- High-Temperature Range
- High-Pressure Capabilities
- Smaller line size capability (See Specification Chart Below)
- 1000:1 Turndown Range Available
Features
- Versatile solution for liquid or gas measurement
- Repeatable rates within +- 2%
- Multi-point flow measurement available
- 100:1 turndown range (1000:1 application dependent)
Applications
- Natural Gas Boiler
- Landfill Gas
- Flare Gas
- Compressed Air
Specifications
- Wetted Materials: 316SS (Std.). Hastelloy-C, Tantalum, and others are available by request.
- Process Connections: 1/2″, 3/4″ & 1″ MNPT Compression Fitting, Insert Flange, Tri- Clover, Welded Union/ Hot Tap Assembly with 1″ Full Port Ball Valve/ Mechanical Retractor System
- Probe Size (OD): 1⁄2″ or 3⁄4″ Std. 1″, 11⁄2″, 2″ Application Dependent.
- Probe Length: 9″, 14″, 25″ (Std.). Custom Lengths Available.
- Protective Coatings Available: Teflon, Others
10 pipe diameters before the meter install point and 5 pipe diameters after the meter without any piping changes. If those conditions cannot be met, Thermal Instrument, in some instances, can simulate piping in order to calibrate to installation conditions.
- Accuracy: ±0.50% of Full Scale
- Repeatability: ± .20% of Rate
- Turndown: 10:1 Std. up to 1000:1 Application Dependent
- Temperature Span: Operating Temperature ± 50°F
- Response Time: Gas —1 Second; Liquids < 500ms
- Flowrates: Gas 40—20,000 SFPM / Liquid 0—10 FPS
- Pressure Rating: Varies by Application & Process Connection
- Temperature: -40—350 °F (Std), -40—176°C (Std.)
- Model Shown: 9500P
- Display: 8 Digit Flow Rate & Total Flow Rate
- Power: 120 / 240 VAC, 50/60 Hz/ 24 VDC, 1 Amp
- Outputs: 4-20 MADC Flow (Std.)/ 4-20 MADC Temperature (Opt.)
- Optional Outputs: 0-5 VDC, 0-10 VDC Optional/ Pulse Output (Opt.)/ Modbus RS 485/ Hart Communication
- Remote: Gas 40—20,000 SFPM / Liquid 0—10 FPS
- Pressure Rating: Varies by Application & Process Connection
- Temperature: -40—350 °F (Std), -40—176°C (Std.)
- Connection: 3⁄4″ FNPT Power & Signal
- Ratings: Nema 4, Explosion Proof, Class 1, Div 1 Groups B, C, D Weatherproof
- Temperature: Ambient –13 to 140°F (-25 to 60°C)/ Storage –40 to 158°F (-40 to 70°C)
