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D118i Ultrasonic Transit Time Flowmeter by SiteLab

D118i Ultrasonic Flowmeter SiteLabThe Model D118i Ultrasonic Flowmeter is a state-of-the-artuniversal transit-time flowmeter designed using ARM COMA technology and low-voltage broadband pulse transmission.

While principally it was designed for clean liquid applications, the versatility of the D118i means it is tolerant of liquids with the small amounts of air bubbles or suspended solids found in most industrial environments.

Comparing with other traditional flow meters or ultrasonic flowmeter, it has distinctive features such as high precision, high reliability, high capability and low cost. 

The D118i flowmeter also features other advantages like:

  • 4.7” graphic LCDCNC machined enclosure with hardened aluminium
  • Unique technology for dynamic flow
  • TF Card, 512 files can be stored (
  • time interval can be within 1 second)

Applications: Water / Sewage, Petroleum, Plant Irrigation, Chemcials, Cooling Water


SL1188 Flowmeter Specifications

Performance Specifications     Flow Range +0.01m/s ~ +12m/s
Accuracy +0.5% of measured value
Repeatability 0.1% of measured value
Pipe Size 25mm to 5000mm
Functional Specifications Outputs
Analogue output: 4~20mA, max load 750Ω
Pulse output: 0~9999Hz, OCT output, (adjustable)
Relay output: the hightes 1Hz (1A@125VAC or 2A@30VDC)
Communication interface RS232 & RS485 communication interface, support Modbus Protocol
TF Card
Max record: 4GB, working 1200 days (sample frequency 5 second)
Storage time interval: 1 ~ 13000s
Power Supply 90 to 245VAC, 48 to 63Hz. or  10 to 36VDC
Keypad 24 light tactile keys
Display 4.7" TFT colour screen
Transmitter: -10°c ~60°c
Transducer: -40°c ~80°c (standard)
Humidity Up to 99% RH, non-condensing
Physical Specifications Transmitter Die-cast aluminium, IP65, CNC machined
Encapsulated design, protection grade IP68
Standard length of cable: 9m
Material: 304 stainless steel
Weight Transmitter: 1 kg



D118i Flowmeter Document Downloads


Flow Type: Liquid Flow Meters