Average Flow Thermal Mass Transmitter

Average Flow Thermal Mass Transmitter – Overview

This Thermal Mass Transmitter stabilises airflow direction and velocity distribution, leading to improved measurement accuracy and consistent sensor output. It uses a multi-point averaging Pitot tube, which samples airflow across multiple points in the duct to determine a representative average velocity. Suitable for Compressed Air System Management, Optimisation of Air Compressors & Pneumatic Equipment Efficiency, Air Dryer Flow Control, Process Gas Consumption Monitoring (N2, Ar, CO2, etc.), Pipeline Leak Detection & Alerts, HVAC Duct Monitoring, Smart Manufacturing Energy Management, Cleanroom Airflow Monitoring, Biotech & Pharmaceutical Gas Supply Stability Monitoring, Food Processing Gas Filling & Packaging Monitoring.

Average Flow Thermal Mass Transmitter – Features

Sensor type: Hot-wire sensor
High Sensitivity
Low Pressure Loss
Detects Minute Airflow Changes
No Compensation Needed, Direct Flow Output
Sizes 2″~12″, Easy Installation
±1.5% F.S. Accuracy, 16 bar Pressure Resistance
Analogue, Relay, RS-485 Outputs
Suitable for various types of gases (N2, Ar, CO2, etc.)
Turndown ratio: 100: 1
Output : 4 … 20 mA / 0 … 10 V / Relay / RS-485
Accuracy : 0.5 … 60 m/s：±(1.5% of mv + 0.8 m/s)
IP rating: IP65

Description

Average Flow Thermal Mass Transmitter | FDM06-P

Input

Sensor type

Hot-wire sensor

Turndown ratio

100: 1

Measuring range

0 … 60 m/s

Output

Output signal

4 … 20 mA / 0 … 10 V / Relay / RS-485

Signal connection

3-wire

Warm-up time

60 sec

Response time

t90≦6 sec

Load resistance

Current output: ≦500 Ω
Voltage output: ≧10 KΩ

Communication

Communication methods & protocol

RS-485 Modbus RTU

RS-485 baud rate

9600、19200、38400、57600、115200 bps

Accuracy

Accuracy

0.5 … 60 m/s : ±(1.5% of mv + 0.8 m/s)

Temp. influence

0.2% / °C

Uncertainty of factory calibration

±1%

*The measurement range is defined at the standard condition(1013 mbar, 20°C).
*mv = measured value

Environmental

Medium

Non-corrosion gas

Operating Temp. & Humid.

0 … 50°C / 20 … 90%RH(Non-condensing)

Storage Temp.

-20 … +60°C

Operating pressure

16 bar

Electrical

Power supply

DC 24 V ±10%

Current consumption

24 V: 110 mA

Relay capacity

Max current: 6 A
Max voltage: DC 24 V (DC 36 V Max)

Electrical connection

M12 8P connector

Installation

Installation

PT 3/4″ movable thread, PT 1/2″ movable thread

Display

Display readout

0 … 99999999 (Cumulative flow: 8-digit)
0 … 99999 (Instantaneous flow: 5-digit)

Decimal point

Button

Sampling time

1 cycle/sec

Flow unit

m/s, ft/s, L/min, m³/min, m³/h, mL, L
m³, ft³, inch³, gal, uk gal

Response time adjustment range

0.5 … 300 sec

Certification

Certification

Protection

IP rating

IP65(Housing)

Electrical protection

■ Reverse polarity ■ Over-voltage

Material

Housing

Aluminium alloy / Plastic

Probe

SUS316

Note: Design and specifications are subject to change without notice.

Note: If the product has RS-485 function, to avoid damaging product, please make sure the product and the device which connect with RS-485 are on common ground.

Average Flow Thermal Mass Transmitter | FDM06-P

Average Flow Thermal Mass Transmitter | FDM06-P

Average Flow Thermal Mass Transmitter | FDM06-P