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Emerson Rosemount 8800D Series - A.4 Physical Specifications

Emerson Rosemount 8800D Series
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113
Specifications and Reference Data
Specifications and Reference Data
March 2016
Reference Manual
00809-0100-4772, Rev FA
Table A-5. Percent Change in K-factor
Ambient temperature effect
Digital Fieldbus signal
No effect
Vibration effect
An output with no process flow may be detected if
sufficiently high vibration is present.
The meter design will minimize this effect, and the factory
settings for signal processing are selected to eliminate
these errors for most applications.
If an output error at zero flow is still detected, it can be
eliminated by adjusting the low flow cutoff, trigger level, or
low-pass filter.
As the process begins to flow through the meter, most
vibration effects are quickly overcome by the flow signal.
Integral SST housing
At or near the minimum liquid flow rate in a normal pipe
mounted installation, the maximum vibration should be
0.044-in. (1,11 mm) double amplitude displacement or
1
/3
g acceleration, whichever is smaller. At or near the
minimum gas flow rate in a normal pipe mounted
installation, the maximum vibration should be 0.022-in.
(0,55 mm) double amplitude displacement or
1
/6 g
acceleration, whichever is smaller.
Mounting position effect
Meter will meet accuracy specifications when mounted in
horizontal, vertical, or inclined pipelines. Best practice for
mounting in a horizontal pipe is to orient the shedder bar in
the horizontal plane. This will prevent solids in liquid
applications and liquid in gas/steam applications from
disrupting the shedding frequency.
EMI/RFI Effect
Meets EMC requirements to EU Directive 2004/108/EC.
F
OUNDATION
Fieldbus
No affect on the values that are being given if using
F
OUNDATION
Fieldbus. Tested per EN61326.
Magnetic-field interference
No effect on accuracy at 30 A/m (rms). Tested per EN
61326.
Series mode noise rejection
No effect on accuracy at 1 V rms 60 Hz. Meets IEC
60770-1984, Section 6.2.4.2
Common mode noise rejection
No effect on accuracy at 250 V rms, 60 Hz. According to
FF-830-PS-2.0 test case 8.2.
Power supply effect
No effect on accuracy.
A.4 Physical specifications
NACE
®
compliance
Materials of Construction meet NACE material
recommendations per MR0175/ISO15156 for use in H2S
containing environments in oil field production. Materials of
construction also meet NACE recommendations per
MR0103-2003 for corrosive petroleum refining
environments. MR0103 compliance requires Q25 option in
model code.
Note
Certificate of compliance for MR0175/ISO15156
requires Q15 as a separate line item.
Electrical connections
1
/2 –14 NPT, PG 13.5, or M20 3 1.5 conduit threads; screw
terminals provided for Fieldbus connections;
communicator connections permanently fixed to terminal
block.
Non-wetted materials
Housing
Low-copper aluminum (FM Type 4X, CSA Type 4X, IP66)
Optional SST housing
Paint
Polyurethane
Cover O-rings
Buna-N
Flanges
316/316L lap joint
Temperature sensor (MTA option)
Type-N Thermocouple
Material Percent change in
K-Factor per
100 °F (55.5 °C)
316L @ < 77 °F (25 °C) + 0.23
316L @ > 77 °F (25 °C) - 0.27
Nickel alloy C < 77 °F (25 °C) + 0.22
Nickel alloy C > 77 °F (25 °C) - 0.22
Aotewell Ltd
www.aotewell.com
Industry Automation
HongKong|UK|China
sales@aotewell.com
+86-755-8660-6182

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