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SERIES 1500 LIQUID TURBINE METER
User manual
P/N 3-9008-507
8
8.1
8.1.1
User manual
64
www.Daniel.com
Operation parameters
Operation overview
The Daniel Series 1500 LTM is a volumetric flow measuring and transmitting device that
produces an output signal proportional to the rate-of-flow of the liquid being measured.
The primary output is a single or dual high resolution signal that is amplified and shaped by
an integral preamplifier mounted within an explosion-proof housing. This square wave
pulse can be fed directly to remote totalizers, digital readout devices or control
instrumentation.
WARNING
EXCEEDING PARAMETER HAZARD
Turbine meter parameters are set for safe equipment use. Do not exceed these
parameters.
Failure to comply may result in death, serious injury and/or damage to the equipment.
Back pressure calculation for the LTM
Flow and pressure information is stamped on the nameplate located on the outside of the
meter.
•
Back pressure at the outlet of the turbine meter must be sufficient for accurate
operation.
•
Consider the following equation when determining back pressure for the turbine
meter.
P
Minimum back pressure, pounds per square inch gauge (psig)
b
Δp Pressure drop through the meter at the maximum operating flow rate for the
liquid being measured, pounds per square inch (psi).
P
Equilibrium vapor pressure of the liquid at the operating temperature, pounds
e
per square inch absolute (psia), gauge pressure plus atmospheric pressure.
•
Open valves slowly to prevent system shock.
•
Protect the Series 1500 housing and components from external impact of any kind.
Note temperature limitations when selecting turbine meter location.
Important
Always use a flushing medium that is compatible with the metallurgy of the meter,
internal components. Using water as a flushing medium may result in damage to the
internal components of the turbine meter.
P
≥ 2 △ p + 1.25p
b
e
Operation parameters
September 2020
73
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