Installation overview, Unobstructed flow requirements – Sierra 730 User Manual

Page 7

Advertising
background image

Series 730 Instruction Manual

IM-73-E

5

Installation Overview

When selecting an installation site, make sure that:

1. Line pressure and temperature will not exceed the flow meter

rating. Temperature should not vary more than 120°F (50°C)
from the calibration temperature. Line pressure should not
vary more than 50 psi (3.4 bar) around the calibrated pressure.

2. The ambient temperature falls within the limits of: 32°F (0°C)

to 120°F (50°C).

3. The location meets the required minimum number of pipe di-

ameters upstream and downstream of the sensor head (see Fig-
ure 2).

4. Safe and convenient access with adequate clearance. Also,

verify the meter is located where the gas is clean and dry and
the meter is calibrated for the gas to be measured.

5. For remote installations, verify the supplied cable length is

sufficient to connect the flow meter sensor to the remote
electronics. (Do not extend or shorten the supplied cable be-
tween the probe and the electronics.)

Also, before installation check your flow system for anomalies such as:

leaks

valves or restrictions in the flow path that could create distur-
bances in the flow profile that might cause unexpected flow rate
indications

heaters that might cause rapid excursions in the measured tem-
perature

Unobstructed Flow Requirements

Select an installation site that will minimize possible distortion in the
flow profile. Valves, elbows, control valves and other piping compo-
nents may cause flow disturbances. In order to achieve accurate and
repeatable performance install the flow meter using the recommended
number of straight run pipe diameters upstream and downstream of
the sensor given in Figure 2.

Advertising