Address: No. 91-93, Lane 5, An Phu Ward, District 2, HCM City
Telephone: (+84) 24 6663 2426
Hotline: (+84) 961 739 336
Operation Time: all weekdays (except Sunday and National Holidays)

Daniel 3804 Electronics – Ultrasonic Flow Meter Transmitter

Vendor: Rosemount

Dynamically measure LNG with greater accuracy and stability than static measurement methods with the fully-redundant, dual four-path Daniel™ 3818 Liquid Ultrasonic Flow Meter.

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This innovative electronics platform improves the speed and simplicity of managing ultrasonic measurement information, saving time and assuring measurement integrity. All transducers are sampled 32 times per second and measurement is updated every quarter of a second. Mark III Electronics firmware utilizes Linux operating system, enabling fast and easy access to data including alarms, configuration changes and flow dynamics in seconds. In addition, this scalable platform improves low-flow performance and the ability to detect and process ultrasonic signals in the presence of high-frequency valve noise.


  • Ease-of-Use

Enhanced best-in-class Windows-based Daniel MeterLink software
Better audit logging with information now date-range accessible
Quick and easy identification of problems
Simple data access (see Remote Diagnostics Service)
LEDs for improved visual feedback
Wiring quick disconnects
Fast and easy configuration checking

  • Speed

Reduces the time to audit data with a best-in-class audit trail
Communicates alarms, events and configuration changes in seconds
Fast 100 MHz 32-bit processor
One second updates on all outputs
Up to ¼ second frequency updates
Up to 115 Kbps serial communications
Transducer sampling is 32 times per second and measurement is updated every ¼ second

  • Improved Accuracy

Reduced lost and unaccounted gas with exceptional low-flow accuracy and linearity throughout calibrated flow range

  • Reliability

Multiple board design
Improved transient protection
11-32 VDC operation with reverse polarity protection

  • Functionality

Meter Archive Logs - 100 days of hourly logs, 1 year of daily logs, and 3000 Events log: alarm/audit
Internal CPU board temperature and voltage monitoring with alarms
Error checking and correcting memory


  • 10.4 VDC – 36 VDC
  • 8 watts typical
  • 15 watts maximum
Operating Temperature Range
–40°C to +65°C (–40°F to +149°F)
Operating Relative Humidity
Up to 95% non-condensing
Storage Temperature
-40°C to +85°C (-40°F to +185°F)
Mount Options
  • Integral mount (standard)
  • Remote mount (optional) – Required when process conditions exceed +65.5°C (+150°F)