ACCURACY ±1% of reading over 25:1 turndown
±2% of reading over 100:1 turndown
Repeatability: ≤± 0.2%
OVERALL FLOW RANGE 500:1 turndown
SENSING METHOD Direct beam path wetted ultrasonic sensors utilizing differential transit time velocity measurement
METER SIZES 1/2" - 2 1/2” nominal diameter
PIPING SYSTEM CONNECTIONS Male NPT threads
2 1/2” meter provided with ANSI Class 150 raised face flanges
FLUID TEMPERATURE RANGE 32°F to 250°F
AMBIENT TEMPERATURE RANGE -13°F to 131°F
MAXIMUM OPERATING PRESSURE 400 psi
PRESSURE DROP Less than 1 psi at 4 ft/s, decreasing at lower velocities
POWER SUPPLY REQUIREMENTS 20-28V AC/DC; 50/60 Hz, 5 VA maximum
ISOLATED ANALOG OUTPUT May be programmed for flow rate or temperature
Configurable as 4-20mA (non-isolated)
Optional 0-5 V or 0-10 V output
ISOLATED TOTALIZING SOLID STATE CONTACT CLOSURE PULSE OUTPUTS
May be programmed for volume, alarm indication or MODBUS coil indication.
Contact ratings: 50mA, 30 VDC maximum
Contact Pulse duration: 1000 ms
Optional: Contact pulse duration; 50, 100, or 500 ms
ISOLATED TOTALIZING PULSE INPUTS (OPTIONAL)
For use with sinking open collector or dry contact outputs
Input rating: 30 VDC, 10 mA maximum
Pulse duration: 50 ms minimum
NETWORK CONNECTIONS (Optional) Isolated RS485 serial interface
COMMUNICATIONS PROTOCOLS (Optional) BACnet MS/TP per ASHRAE Standard 135.1:2009, MODBUS RTU |