Ultrasonic Flow Meter for Air : TRX Series
Feature
- Pressure loss = "0", therefore, energy loss = "0"
- Strong resistance to oil and vapor provides high durability
- Measurement and output of forward flow and reverse flow possible
- Wide range ability with ratio of 1:60
- Battery power supply makes power line construction unnecessary
- Easy-to-read display configuration
- Various output functions enable system maintenance and control
Measurement principle
“Propagation time difference” method superior in repeatability
Examples of applications
1. For “Visualization” control of load factor at compressor operation
2. For energy specific unit management by measuring air consumption amount of each building (Factory A, Factory B, etc.) on a factory’s premises.
3. For detection and countermeasure of factory air leakage
4. Monitoring of each aeration blower’s air amount
Overview
◎Specifications
| Model | External power supply specification | TRX25D-C/4P | TRX32D-C/4P | TRX40D-C/4P | TRX50D-C/4P | TRX65D-C/4P |
|---|---|---|---|---|---|---|
| Built-in battery specification | TRX25-C/4P | TRX32-C/4P | TRX40-C/4P | TRX50-C/4P | TRX65-C/4P | |
| Nominal diameter | 25mm | 32mm | 40mm | 50mm | 65mm | |
| Electric Power Supply | External power supply specification |
24VDC±10%, Power consumption 1.1W MAX(Electric current consumption 40mA MAX) | ||||
| Built-in battery specification |
Built-in lithium battery with a battery life of 10 years (At environmental temperature 20°C) |
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| Measurable fluids | Air (mainly factory air), or Nitrogen (Note 1) *Please select at the time of placing an order |
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| Fluid temperature and humidity |
-10 ~ 60 °C, 90%RH MAX | |||||
| Working pressure | 0 ~ Less than 1MPa (Gauge pressure) | |||||
| Flow range (actual volume) |
±0.6 ~ 35m3/h | ±1.1 ~ 65m3/h | ±1.3 ~ 80m3/h | ±2.5 ~ 150m3/h | ±4 ~ 240m3/h | |
| Flow measurement accuracy | ±2%RS | ±3.5 ~ 35m3/h | ±6.5 ~ 65m3/h | ±8 ~ 80m3/h | ±15 ~ 150m3/h | ±24 ~ 240m3/h |
| ±5%RS | ±0.6 ~ 3.5m3/h | ±1.1 ~ 6.5m3/h | ±1.3 ~ 8m3/h | ±2.5 ~ 15m3/h | ±4 ~ 24m3/h | |
| Low-flow cut-off | ±0.1m3/h | ±0.2m3/h | ±0.2m3/h | ±0.4m3/h | ±0.6m3/h | |
| Conversion-to-NORMAL accuracy |
±2.5% (At 500kPa, 25 °C) | |||||
| Display (switchover by the button) | Type | LCD 7 segments (With unit and alarm indications) ※ Alarm indications: ALARM1: Measurement error (Failure to receive ultrasonic wave), ALARM2: Communication circuit error (Short-circuit), Low battery voltage (For the built-in battery type) |
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| Main display |
【Forward flow indication mode】 Accumulated flow volume (Total) : 00000000.0(Nm3/h) 9 digits, Accumulated flow volume (Trip) : 0000000.0(Nm3/h) 8 digits, Instantaneous flow-rate : 00000.00（NL/min） 7 digits |
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| 【Forward/reverse flow indication mode】 Accumulated flow volume (Forward flow) : 00000000.0(Nm3/h) 9 digits, Accumulated flow volume (Reverse flow) : -0000000.0(Nm3/h) 8 digits, Instantaneous flow-rate : 00000.00（NL/min） 7 digits |
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| Sub display |
TRX : Instantaneous flow-rate(Nm3/h) : 000.00 (Less than 200), 0000.0 (200 to less than 200) 5 digits, 0000(2000 and above) 4 digits, Pressure(kPa) : 0000.0 5 digits, Temperature( °C) : 00.0 3 digits |
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| TRZ : Instantaneous flow-rate(Nm3/h) : 0000.0 (Less than 2000), 00000 (2000 to less than 2000) 5 digits, [200A×10], Pressure(kPa) : 0000 4 digits, Temperature( °C) : 00.0 3 digits |
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| Output | Electric current output |
4-20mA(±0.5%FS), Load resistance 400 ohm or less, Upper limit output current 22mA Output of Instantaneous flow-rate, pressure, or temperature is selectable by the button Note) An electric power supply device (24VDC±10%) shall be prepared separately, in case of use of electric current output with the built-in battery specification type. |
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| Output range (4 ~ 20mA) : Instantaneous flow-rate 0 ~ □□□□Nm3/h(Forward flow indication mode), -□□□□ ~ □□□□Nm3/h(Forward/reverse flow indication mode) □□□□ is setting value set by the button |
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| Pressure 0 ~ 1000kPa, Temperature -10 ~ 60°C | ||||||
| Contact output |
2 open drain outputs, MAX load: 24VDC 10mA, MAX frequency: 10Hz, Duty: 35 ~ 65% | |||||
| Output 1: Unit pulse (Forward flow) Output 2: Selection from Unit pulse (Reverse flow), Flow upper and lower limit alarm, or electronic statement signal |
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| Pulse output unit 0.1Nm3/P, 1Nm3/P | ||||||
| Connection | Rc1 | Rc1-1/4 | Wafer (put into place between JIS10K flanges) | |||
| Installation position | Horizontal (LCD display faces upwards) or vertical | |||||
| Materials in contact with fluid |
Aluminum Alloy, PPS, Fluorosilicone rubber, etc. | |||||
| Mass | External power supply specifications |
1.5kg | 1.4kg | 1.0kg | 1.2kg | 1.4kg |
| Built-in battery specifications |
1.7kg | 1.6kg | 1.1kg | 1.3kg | 1.6kg | |
| Installation | Indoors/outdoors (protection class: IP64) | |||||
| Storage temperature | -20~70°C, No dew condensation | |||||
| Conformed standard | CE marking conformity (EN61000-6-2:2005, EN61000-6-4:2007) | |||||
| Model | External power supply specification | TRX80D-C/4P | TRＺ100D-C/4P | TRZ150D-C/4P | TRZ200D-C/4P |
|---|---|---|---|---|---|
| Built-in battery specification | TRX80-C/4P | TRZ100-C/4P | TRZ150-C/4P | TRZ200-C/4P | |
| Nominal diameter | 80mm | 100mm | 150mm | 200mm | |
| Electric Power Supply | External power supply specification |
24VDC±10%, Power consumption 1.1W MAX(Electric current consumption 40mA MAX) | |||
| Built-in battery specification |
Built-in lithium battery with a battery life of 10 years (At environmental temperature 20°C) |
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| Measurable fluids | Air (mainly factory air), or Nitrogen (Note 1) *Please select at the time of placing an order |
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| Fluid temperature and humidity |
-10 ~ 60 °C, 90%RH MAX | ||||
| Working pressure | 0 ~ Less than 1MPa (Gauge pressure) | ||||
| Flow range (actual volume) |
±5 ~ 300m3/h | ±10 ~ 500m3/h | ±24 ~ 1200m3/h | ±40 ~ 2000m3/h | |
| Flow measurement accuracy | ±2%RS | ±30 ~ 300m3/h | ±50 ~ 500m3/h | ±120 ~ 1200m3/h | ±200 ~ 2000m3/h |
| ±5%RS | ±5 ~ 30m3/h | ±10 ~ 50m3/h | ±24 ~ 120m3/h | ±40 ~ 200m3/h | |
| Low-flow cut-off | ±0.8m3/h | ±2.6m3/h | ±5.0m3/h | ±9.0m3/h | |
| Conversion-to-NORMAL accuracy |
±2.5% (At 500kPa, 25 °C) | ±2% (300kPa or above) | |||
| Display (switchover by the button) | Type | LCD 7 segments (With unit and alarm indications) ※ Alarm indications: ALARM1: Measurement error (Failure to receive ultrasonic wave), ALARM2: Communication circuit error (Short-circuit), Low battery voltage (For the built-in battery type) |
【Forward flow indication mode】 Accumulated flow volume (Total) : 0000000000(Nm3/h) 10 digits Accumulated flow volume (Trip) : 000000000(Nm3/h) 9 digits Instantaneous flow-rate : 0000000(NL/min) 7 digits [200A×10] |
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| Main display |
【Forward flow indication mode】 Accumulated flow volume (Total) : 00000000.0(Nm3/h) 9 digits, Accumulated flow volume (Trip) : 0000000.0(Nm3/h) 8 digits, Instantaneous flow-rate : 00000.00（NL/min） 7 digits |
【Forward/reverse flow indication mode】 Accumulated flow volume (Forward flow) : 0000000000(Nm3/h) 10 digits Accumulated flow volume (Reverse flow) : -000000000(Nm3/h) 9 digits Instantaneous flow-rate : 0000000 (NL/min) 7 digits [200A×10] |
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| 【Forward/reverse flow indication mode】 Accumulated flow volume (Forward flow) : 00000000.0(Nm3/h) 9 digits, Accumulated flow volume (Reverse flow) : -0000000.0(Nm3/h) 8 digits, Instantaneous flow-rate : 00000.00（NL/min） 7 digits |
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| Sub display |
TRX : Instantaneous flow-rate(Nm3/h) : 000.00 (Less than 200), 0000.0 (200 to less than 200) 5 digits, 0000(2000 and above) 4 digits, Pressure(kPa) : 0000.0 5 digits, Temperature( °C) : 00.0 3 digits |
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| TRZ : Instantaneous flow-rate(Nm3/h) : 0000.0 (Less than 2000), 00000 (2000 to less than 2000) 5 digits, [200A×10], Pressure(kPa) : 0000 4 digits, Temperature( °C) : 00.0 3 digits |
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| Output | Electric current output |
4-20mA(±0.5%FS), Load resistance 400 ohm or less, Upper limit output current 22mA Output of Instantaneous flow-rate, pressure, or temperature is selectable by the button Note) An electric power supply device (24VDC±10%) shall be prepared separately, in case of use of electric current output with the built-in battery specification type. |
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| Output range (4 ~ 20mA) : Instantaneous flow-rate 0 ~ □□□□Nm3/h(Forward flow indication mode), -□□□□ ~ □□□□Nm3/h(Forward/reverse flow indication mode) □□□□ is setting value set by the button |
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| Pressure 0 ~ 1000kPa, Temperature -10 ~ 60°C | |||||
| Contact output |
2 open drain outputs, MAX load: 24VDC 10mA, MAX frequency: 10Hz, Duty: 35 ~ 65% | ||||
| Output 1: Unit pulse (Forward flow) Output 2: Selection from Unit pulse (Reverse flow), Flow upper and lower limit alarm, or electronic statement signal |
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| Pulse output unit 0.1Nm3/P, 1Nm3/P | Pulse output unit 1Nm3/P, 0Nm3/P | ||||
| Connection | Wafer (put into place between JIS10K flanges) |
JIS10K flange | |||
| Installation position | Horizontal (LCD display faces upwards) or vertical | ||||
| Materials in contact with fluid |
Aluminum Alloy, PPS, Fluorosilicone rubber, etc. |
Stainless steel alloy, PPS, Fluorosilicone rubber, etc. |
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| Mass | External power supply specifications |
1.7kg | 9.8kg | 18.1kg | 23.9kg |
| Built-in battery specifications |
1.8kg | 10.0kg | 18.3kg | 24.1kg | |
| Installation | Indoors/outdoors (protection class: IP64) | ||||
| Storage temperature | -20~70°C, No dew condensation | ||||
| Conformed standard | CE marking conformity (EN61000-6-2:2005, EN61000-6-4:2007) | ||||
Note 1) Nominal diameters 25 ~ 80mm correspond measurement of Nitrogen.
Note 2) At the actual flow measurement setting, number of digits for accumulated flow volumes, number of digits for instantaneous flow-rate, and pulse output unit differ from the above table.
*Piping conditions : 25mm & 32mm: Furnishing of straight pipe of 20D or more at the upstream side and 5D or more at the downstream side (In case of utilization of forward/reverse flow indication mode, 20D or more for the both upstream and downstream)
40mm and above : Furnishing of straight pipe of 10D or more at the upstream side and 5D or more at the downstream side (In case of utilization of forward/reverse flow indication mode, 10D or more for the both upstream and downstream)
◎Actual Flow Volume – Normal Flow Volume Conversion Table
| Conversion condition | 25mm | 32mm | 40mm | 50mm | 65mm | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature (°C) |
Gauge pressure (MPa) |
Minimum | Maximum | Minimum | Maximum | Minimum | Maximum | Minimum | Maximum | Minimum | Maximum |
| 20 | 0.7 (Nm3/h) |
4.4 | 260 | 8.1 | 480 | 9.6 | 590 | 18 | 1100 | 30 | 1770 |
| 30 | 0.5 (Nm3/h) |
3.2 | 190 | 5.9 | 350 | 7 | 430 | 13 | 800 | 21 | 1280 |
| 0.7 (Nm3/h) |
4.3 | 250 | 7.8 | 460 | 9.3 | 570 | 18 | 1070 | 29 | 1710 | |
| Actual flow (m3/h) | 0.6 | 35 | 1.1 | 65 | 1.3 | 80 | 2.5 | 150 | 4 | 240 | |
| Conversion condition | 80mm | 100mm | 150mm | 200mm | |||||
|---|---|---|---|---|---|---|---|---|---|
| Temperature (°C) |
Gauge pressure (MPa) |
Minimum | Maximum | Minimum | Maximum | Minimum | Maximum | Minimum | Maximum |
| 20 | 0.7 (Nm3/h) |
37 | 2210 | 74 | 3680 | 180 | 8840 | 290 | 14700 |
| 30 | 0.5 (Nm3/h) |
27 | 1600 | 53 | 2670 | 130 | 6420 | 210 | 10700 |
| 0.7 (Nm3/h) |
36 | 2140 | 71 | 3560 | 170 | 8550 | 290 | 14250 | |
| Actual flow (m3/h) | 5 | 300 | 10 | 500 | 24 | 1200 | 40 | 2000 | |
Dimensions
External dimensions
