Sentinel

The Sentinel ultrasonic flow meter from Panametrics is specifically designed to measure the flow rate of natural gas.
Applications include:

  • Transmission and distribution
  • Power systems
  • Custody transfer
  • Underground storage
  • Pipeline balancing
  • Gas processing
  • Compressor station metering

The Sentinel meets the high accuracy standards of AGA9 for natural gas custody and the NMI pattern approval.
The T11 transducers for use with the sentinel are specifically designed for natural gas applications.
A complete Sentinel system is made up of the ultrasonic meter, the flow conditioner and upstream? and downstream piping. ?This system design eliminates the uncertainty associated with installation effects (distorted flow profile caused by valves, elbows and other piping system components) on the overall meter performance. ?This system provides a cost effective, simplified monitoring solution without causing any additional risk to measurement uncertainty.
The Sentinel flow meter provides convenient installation as the meters electronics are pre programmed with all the system setup information. The meter is ready to use as soon as the meter body has been installed and the meter communications and power are wired. The user does not have to do any additional setup or configuration of the meter.
The Sentinel system is compatible with Panaview software and allows communication between the meter and PC. The software allows live flow readings and diagnostics. The software also provides a comprehensive check on meter configuration with a full audit trail.

Fluid Types Natural gas (other gases available upon request)
Pipe Sizes 4 in to 24 in (100mm to 600mm)
Repeatability ?0.2% to 0.5% of reading
Maximum Error (without
flow calibration)
 ?0.08% between 0.15 Qmaximum and Qmaximum
?1.0% between Qminimum and 0.15 Qmaximum

Repeatability

 0.08% between 0.15 Qmaximum and Qmaximum
0.15% between Qminimum and 0.15 Qmaximum

Operating Temperature

 -30?C to 80?C

Transducers

 -30?C to 80?C

Transmitter

 -40?C to 60?C
Standard Inputs /Outputs
  • Two 0/4 to 20mA isolated outputs, 600Ω maximum load
  • One frequency (HF) output, optically iolated from DC to 10kHz maximum
  • One hermetically sealed Form C alarm relay. Can be applied to indicate flow direction or fault
  • Two isolated 4 to 20 mA inputs and 24 V loop power for pressure and temperature
  • Optional 2 HF outputs and two alarm output or 1 HF output and 4 to 20 mA inputs
Power Supplies Standard: 95 to 240 VAC ?10%, 50 to 60 Hz ?2% Optional: 17 to 32 VDC, ?10%
Dimensions (h x d) 208mm x 168mm
Weight (Control Unit) 10 lbs (4.5kg)

Download Product Specification Download PDF
Download Product Manual Download PDF

Select Options
Quantity