| Model | External power specifications | TRX40D-C/4P | TRX50D-C/4P | TRX65D-C/4P | TRX80D-C/4P | 
        
            | Built-in battery specifications | TRX40-C/4P | TRX50-C/4P | TRX65-C/4P | TRX80-C/4P | 
        
            | Diameter (Nominal diameter) | 40A | 50A | 65A | 80A | 
        
            | Power source | External power specifications | 24 VDC ± 10%; Power consumption: 1.1 W or less | 
        
            | Built-in battery specifications | Lithium battery with a battery life of about 10 years (under an environmental temperature of 20°C) | 
        
            | Measurable fluids | Air (mainly the air in a factory) or nitrogen * Please select when ordering.
 | 
        
            | Fluid temperature and humidity | - 10 to 60°C and 90% RH or less | 
        
            | Operating pressure | Less than 0 to 1 MPa (Gauge pressure) | 
        
            | Flow rate range (Actual flow) | ±1.3~80m3/h | ±2.5~150m3/h | ±4~240m3/h | ±5~300m3/h | 
        
            | Flow measurement accuracy | ±2%RS | ±8~80m3/h | ±15~150m3/h | ±24~240m3/h | ±30~300m3/h | 
        
            | ±5%RS | ±1.3~8m3/h | ±2.5~15m3/h | ±4~24m3/h | ±5~30m3/h | 
        
            | Low flow rate cut-off | ±0.2m3/h | ±0.4m3/h | ±0.5m3/h | ±0.8m3/h | 
        
            | Normal conversion accuracy | ± 2.5% (at 500 kPa and 25°C) | 
        
            | Display (Switched by buttons)
 | Model | LCD 7 segments (with unit and alarm displays) | 
        
            | Main display *2 | [Forward flow display mode] Accumulated flow rate: 00000000.0 (Nm3/h) in 9 digits
 Trip accumulated flow rate: 0000000.0 (Nm3/h) in 8 digits
 Instantaneous flow rate: 00000.00 (NL/min) in 7 digits
 | 
        
            | [Forward and reverse flow display mode] Forward accumulated flow rate: 00000000.0 (Nm3/h) in 9 digits
 Reverse accumulated flow rate: -0000000.0 (Nm3/h) in 8 digits
 Instantaneous flow rate: 00000.00 (NL/min) in 7 digits
 | 
        
            | Sub display | Instantaneous flow rate: 000.00 (Nm 3/h, less than 200 Nm3/h) in 5 digits
 0000.0 (Nm 3/h, 200 Nm3/h or more and less than 2000 Nm3/h) in 4 and 1/2 digits
 00000 (Nm 3/h, 2000 Nm3/h or more) in 5 digits [200 A × 10]
 | 
        
            | Pressure: 0000.0 kPa in 5 digits Temperature: 00.0°C in 3 digits
 | 
        
            | Output | Current output | 4 to 20 mA (± 0.5% FS); Load resistance: 400 Ω or less; Upper output current: 22 mA Select output from instantaneous flow rate, pressure, and temperature by pressing a button.
 A separate power supply (24 VDC ± 10%) is necessary if you use the meter of the built-in battery specifications. *1
 | 
        
            | Output range (4 to 20 mA): Instantaneous flow rate 0 to ☐☐☐☐ Nm3/h (Forward flow display mode)
 – ☐☐☐☐ to ☐☐☐☐ Nm3/h (Forward and reverse flow display mode)
 ☐☐☐☐ are the values set by the button.
 | 
        
            | Pressure: 0 to 1000 kPa Temperature: -10 to 60°C
 | 
        
            | Contact output | Two Open-drain output systems Maximum load: 24 VDC, 10 mA
 Maximum frequency: 10 Hz
 Duty: 35% to 65%
 | 
        
            | Output 1: Unit pulse (Forward flow) Output 2: Unit pulse (Reverse flow)
 Flow rate upper and lower limits alarm
 Selection of telegram output
 | 
        
            | Pulse output units: 100 NL/P or 1000 NL/P | 
        
            | Connection method | Wafers (Fixed by JIS 10 K flanges) | 
        
            | Mounting position | Horizontal (LCD display to be placed upward), or vertical mounting | 
        
            | The materials exposed to gases | Aluminum alloy, PPS, fluorosilicone rubber, etc. | 
        
            | Mass | External power specifications | 1.0kg | 1.2kg | 1.4kg | 1.7kg | 
        
            | Built-in battery specifications | 1.1kg | 1.3kg | 1.6kg | 1.8kg | 
        
            | Installation location | Indoor and outdoor (The safety class IP64 qualified) | 
        
            | Storage temperature | -20 to 70°C; No condensing | 
        
            | Regulatory compliance | CE marking compliant (EN 61000- 6-2:2005 and EN 61000- 6-4: 2007) |