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Section 1 Model 7000 Series Turbine Flowmeter
• ATEX certied, EEx d IIC (Model 7100, 7200, 7300)
• Measurement Canada Custody Transfer Certication G-0210 (Model
7400)
• Canadian Registration Number 0F0123.2C (Model 7400)
• Intrinsically Safe/Non-incendive approved to various standards as
governed by the certication of the readout device and the specic entity
parameters of the pickup coils listed with that device.
Pressure Boundary Certication
• Conformity to PED 97/23/EC
Measurement Performance
Refer to Cameron product literature (technical data sheets) for full descrip-
tions and capabilities.
• Linearity (Models 7100, 7200, 7300)*
- ±1.0% for 1/4-in. and 3/8-in. sizes
- ±0.5% for 1/2-in., 5/8-in., and 3/4-in. sizes
- ±0.25% for 1-in. and larger sizes
• Linearity (Model 7400)*
- ±1.0% for single K-factor
• Custody transfer approved by Measurement Canada
• Temperature Range
- Model 7100, 7300: -160°F to 850°F (-107°C to 454°C)
- Model 7200, 7400: -425°F to 570°F (-254°C to 299°C)
For temperature and pressure derating information, see Section 2, Table 2.3
and 2.4, page 15, and Table 2-5, page 16.
The temperature range required for any given application is dependent on the
bearing design, electronics/electrical selections and meter housing materials.
Contact Cameron for help in selecting a meter and components that are appro-
priate for high-temperature or low-temperature applications.
MeterPickupCoil(s)
A variable reluctance generating pickup coil contains a permanent magnet and
a wire winding. In Model 7100, 7200 and 7400 owmeters, the rotor blade of
the turbine meter is made of a ferritic stainless steel such as grade 430. The
movement of the rotor blade in proximity to the magnetic eld of the coil tip
produces an AC type voltage pulse within the coil winding. In Model 7300,
the ferritic bars imbedded in the rotor shroud interact with the pickup coil.
Because the bars on the shroud outnumber the blades on a standard rotor, the
7300 owmeter provides more pulses per unit volume (resolution). This fea-
ture is valuable when proving large-capacity meters with a small-volume prover.
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