TLF Mass Flow Meter
Thermal mass flow meter for non-corrosive gas, with LCD options to read the flow rate locally or track accumulated flow with a totalizer. Blue-backlit and no-display options are available, with 0–5 VDC or 4–20 mA output.
TLF SERIES
Flow Rate & Totalizer LCD DisplayFlow Rate With or Without LCD Display
- ±1% Accuracy
- Linear Output
- Thermal Technology
- For Using in Non Corrosive Gas
- For Flow Rates up to 100 SLM
- Power Supply Included
The NEW-FLOW Thermomal Mass Flow Meters provide high performance. Thermal Technology offers advantages in accuracy, sensitivity and turn quality components and the latest technology are combined to provide reliable, compact meters and controllers. The TLF Series comes two type: With or Without an LCD Display; or Flow Rate with Totalizer LCD Display. All models come with linear 0-5VDC and 4-20mA output. The TLF Series measures the mass flow rate of gases in 23 ranges from 0-10 SCCM to 0-100 SLM as shown in the range table.
Technical Data and Dimensions
- Display types
- Without LCD; flow rate LCD; flow rate LCD with blue backlight; or flow rate and totalizer LCD with blue backlight.
- Wetted material
- SS316 flow body; Tapcon and optional materials available. Viton O-ring.
- Output signal
- 0–5 VDC linear, minimum load 1000 Ω; or 4–20 mA linear, loop resistance 500 Ω.
- Input power
- 24 VDC standard; optional power supply 15 VDC, 115 VAC or 220 VAC at 500 mA.
- Accuracy
- ±1% F.S., including linearity.
- Turndown ratio
- 100:1
- Repeatability
- ±0.15% F.S. or better.
- Electrical connection
- 9-pin Sub-D.
- Process connection
- ¼ in NPT female.
- Range
- 0–10 SCCM to 0–100 SLM.
- Minimum pressure
- 40 in H₂O
- Maximum pressure
- SS316: 500 psig; Tapcon: 250 psig.
- Temperature range
- 0–50°C
- Response time
- 1 second.
- Temperature coefficient
- 0.05% of full scale per 1°C or better.
- Pressure coefficient
- 0.01% of full scale per PSIG or better.
- Flow units
- Kg, GAL, Nℓ, Nm³, cc, ℓ, M³. Flow rate LCD: manufacturer-applied unit label. Totalizer LCD: unit shown on the display.
- Weight
- Approximately 1.08 kg with power supply; 1.22 kg with power supply and totalizer.
Dimensions — mm (in)
Display and decimal point functions
Flow-rate LCD
The flow unit is labelled by the manufacturer. Decimal-point positions depend on the displayed range:
| Range | Decimal point |
|---|---|
| 0–1.999 | D3 |
| 2.0–19.99 | D2 |
| 20.0–199.9 | D1 |
| 200–1999 | None |
Flow-rate and totalizer LCD
The upper row shows the accumulated total with 10 digits; the lower row shows flow rate with 8 digits. The flow unit appears on the LCD. The diagram identifies the D1, D2 and D3 decimal-point positions.
Display choices are no LCD, flow-rate LCD, flow-rate LCD with blue backlight, or flow-rate and totalizer LCD with blue backlight.
Dimension drawings include both display versions, all side, front and mounting views, millimetres and inches, and the ±1.0 mm tolerance.
Specify the actual gas and operating conditions for calibration review.
Standard Scales
Standard Scales
| Code | Flow range |
|---|---|
| 00 | 0–10 SCCM |
| 01 | 0–20 SCCM |
| 02 | 0–50 SCCM |
| 03 | 0–100 SCCM |
| 04 | 0–200 SCCM |
| 05 | 0–500 SCCM |
| 06 | 0–1 SLM |
| 07 | 0–2 SLM |
| Code | Flow range |
|---|---|
| 08 | 0–5 SLM |
| 09 | 0–10 SLM |
| 10 | 0–15 SLM |
| 11 | 0–20 SLM |
| 12 | 0–25 SLM |
| 13 | 0–30 SLM |
| 14 | 0–35 SLM |
| 15 | 0–40 SLM |
| Code | Flow range |
|---|---|
| 16 | 0–45 SLM |
| 17 | 0–50 SLM |
| 18 | 0–55 SLM |
| 19 | 0–60 SLM |
| 20 | 0–65 SLM |
| 21 | 0–70 SLM |
| 22 | 0–75 SLM |
| 23 | 0–100 SLM |
24 — Custom flow range
Connection: ¼ in NPT female. Custom flow range: maximum 100 SLM.
Build your TLF ordering code
Choose each option in PDF order. Single available options are selected automatically.