Key Highlights
01. Non‑invasive Clamp‑on Design:
02. Transit‑Time Measurement Technology:
03. Portable & Battery‑Powered:
04. Rich On‑board Functions:
05. Wide Working Range:
06. Broad Liquid Compatibility:
1.How Does the TF1100‑CH Series Deliver Portable Non‑Intrusive Flow Measurement?
The TF1100‑CH series is Lanry Instruments’ handheld transit‑time ultrasonic flow meter. It consists of a handheld main unit and a pair of external clamp‑on transducers. Different from inline flow meters, its transducers are strapped onto the outer surface of closed pipes without modifying pipeline structures or interrupting running processes.
Adopting advanced transit‑time principle, the two transducers work alternately as ultrasonic transmitters and receivers. Three installation configurations are optional: V‑method for twice sound travel across pipe wall, W‑method for four‑time travel, and Z‑method for one‑time cross‑pipe transmission. Users select the proper mounting mode based on actual pipe dimension and liquid properties.
The instrument calculates liquid velocity by measuring the time difference between ultrasonic pulses travelling downstream and upstream, and further computes flow rate and total flow volume. Since sensors stay outside the pipe, there is no risk of sensor fouling caused by dirty or corrosive media. Powered by rechargeable battery and housed in a compact portable case, the TF1100‑CH is well‑suited for temporary field measurement tasks.
2. What Core Functions Make TF1100‑CH Fit for Field‑Site Work?
| Feature | Specification / Description |
|---|---|
| Power Supply | Rechargeable battery with up to 14‑hours continuous working time |
| Display | Back‑lit 4‑line LCD display for on‑site reading |
| Data Storage | Built‑in data logger for recording measurement history |
| Velocity Range | 0.01 m/s ~ 12 m/s, bi‑directional flow measurement |
| Liquid Temperature | ‑35 °C ~ 200 °C |
| Liquid Turbidity | Works for clean to moderately dirty liquids, turbidity ＜10000 ppm |
| Transducer Type | Non‑invasive external clamp‑on transducers |
| Installation Modes | V‑method / W‑method / Z‑method selectable |
| Main Application | Mobile measurement, flow calibration, data comparison, running status inspection |
| Transport | Light‑weight design, supplied with protective portable carrying case |
3. What Application Scenarios Is the TF1100‑CH Series Suitable For?
Benefiting from its clamp‑on portable transit‑time technology, the TF1100‑CH solves measuring challenges where installing permanent inline meters is inconvenient or uneconomical.
| Application | Description |
|---|---|
| Water & Wastewater Industry | Flow spot‑check for various process liquid pipelines |
| Petrochemical Industry | Measuring alcohol, acid solutions, thermal oil and other chemical fluids |
| Chemical Industry | Field inspection for refrigeration and air‑conditioning circulating pipelines |
| HVAC & Refrigeration | Non‑intrusive spot measurement for hygienic process pipelines |
| Food, Beverage & Pharmaceutical | Thermal power, hydropower and nuclear plant feed‑water & auxiliary pipeline verification |
| Power Plants | On‑site flow survey for industrial process pipelines |
| Metallurgy & Mining | Pipeline leak investigation, periodic inspection, flow data collection and comparison |
| General Plant Engineering | explosion‑proof version available for hazardous area applications |
Note: TF1100‑CH transit‑time handheld flow meter is designed for full‑pipe closed pipeline applications. It is not applicable for open channels or partially‑filled pipes. For open‑flow scenarios, Lanry DOF6000 series area‑velocity flow meter shall be adopted as alternative solution.
4. How to Choose Between TF1100‑CH and DOF6000 Series?
| Feature | TF1100‑CH | DOF6000 Series |
|---|---|---|
| Measurement Principle | Transit‑time ultrasonic | Doppler area‑velocity |
| Pipe Condition | Full closed pipe only | Open channel / partially‑filled pipe |
| Sensor Installation | Clamp‑on outside pipe, no media contact | Submerged sensor immersed inside water |
| Typical Use | Portable spot‑check, calibration for full‑pipe lines | Long‑term or temporary monitoring for rivers, channels, culverts |
| Key Measured Value | Flow rate, total flow | Velocity, depth, conductivity, flow rate, total flow |
| Representative Models | TF1100‑CH | DOF6000‑W (wall‑mounted), DOF6000‑P (portable) |
Users need to confirm actual pipe status before selection. If the pipeline always keeps full liquid, TF1100‑CH provides convenient portable clamp‑on measurement. For open channels, rivers or non‑full pipes, DOF6000 series is the correct product choice.
5. What Makes TF1100‑CH a Reliable Portable Flow‑Measuring Tool?
The TF1100‑CH handheld ultrasonic flow meter combines transit‑time measuring performance and high field‑operability. Its non‑intrusive external transducer setup removes the requirement to cut or modify existing pipes. The rechargeable battery, data‑logging capability and wide media adaptability support diverse on‑site tasks including spot survey, flow calibration and meter performance verification.
With flexible V/W/Z installation modes and broad temperature & flow range, this portable unit delivers dependable measurements for water‑treatment, chemical, power, petrochemical and many other sectors. It serves as a practical auxiliary instrument for professionals conducting periodic flow inspection and field‑site diagnostic work on full‑pipe liquid pipelines.
FAQ About the Electromagnetic Flowmeter
Q1. Does TF1100‑CH need to cut the pipeline during installation?
No. The TF1100‑CH uses clamp‑on external transducers. You only need to strap sensors onto the outer pipe surface. No pipe cutting or process interruption is required.
Q2.Can TF1100‑CH measure partially‑filled pipes or open channels?
No. The TF1100‑CH transit‑time flow meter works only for full‑pipe closed pipelines. For partially‑filled pipes and open‑flow conditions, please select Lanry DOF6000 series.
Q3. What is the maximum continuous working time for TF1100‑CH on battery?
The built‑in rechargeable battery supports up to 14 hours of continuous field measurement.
Q4. What liquid turbidity can TF1100‑CH handle?
It works for clean and moderately dirty liquids with turbidity below 10000 ppm. Heavily turbid media may cause signal attenuation and affect measuring stability.
Q5. What installation modes are available for TF1100‑CH transducers?
Three modes are selectable: V‑method, W‑method and Z‑method. Users shall choose according to pipe diameter and wall‑thickness parameters.
Graduating with a Bachelor’s in Business English, as a sales engineer of Lanry Instruments more than 5 years.
Having participated in multiple overseas exhibitions,possess in-depth product knowledge of our complete instrument lineup
and strong capabilities for international client engagement.Should you have any project demands for instruments, pls feel free to contact me.
Post time: Sep-15-2026