Proline Cubemass C 500
64
Hauser
corresponding type test declaration can be ordered with the device (order code for "Additional
approval", option LN "Sensor housing burst pressure, type test").
DN
Sensor housing nominal
pressure
(designed with a safety factor
≥ 4)
Sensor housing burst pressure
[mm]
[in]
[bar]
[psi]
[bar]
[psi]
1
¹⁄₂₄
40
580
190
2
755
2
¹⁄₁₂
40
580
190
2
755
4
¹⁄₈
40
580
190
2
755
6
¹⁄₄
40
580
190
2
755
For information on the dimensions: see the "Mechanical construction" section→ 66
Rupture disk
To increase the level of safety, a device version with a rupture disk with a trigger pressure of
10 to 15 bar (145 to 217.5 psi)can be used (order code for "Sensor option", option CA "rupture disk").
Information on the dimensions of the rupture disk: → 72
Flow limit
Select the nominal diameter by optimizing between the required flow range and permissible pressure
loss.
For an overview of the full scale values for the measuring range, see the "Measuring range"
• The minimum recommended full scale value is approx. 1/20 of the maximum full scale value
• In most applications, 20 to 50 % of the maximum full scale value can be considered ideal
• A low full scale value must be selected for abrasive media (such as liquids with entrained solids):
flow velocity < 1 m/s (< 3 ft/s).
• For gas measurement the following rules apply:
– The flow velocity in the measuring tubes should not exceed half the sound velocity (0.5 Mach).
– The maximum mass flow depends on the density of the gas: formula → 12
To calculate the flow limit, use the
Applicator
sizing tool → 106
Pressure loss
To calculate the pressure loss, use the
Applicator
System pressure
It is important that cavitation does not occur, or that gases entrained in the liquids do not outgas.
This is prevented by means of a sufficiently high system pressure.
For this reason, the following mounting locations are recommended:
• At the lowest point in a vertical pipe
• Downstream from pumps (no danger of vacuum)
A0028777
Thermal insulation
In the case of some fluids, it is important to keep the heat radiated from the sensor to the
transmitter to a low level. A wide range of materials can be used for the required insulation.
Заказывайте
на
сайте
: www.tinnova.ru/endress_hauser/ ||
Эл
.
почта
: info@tinnova.ru
