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Specifications and Reference Data
November 2016
Figure A-1. Thermal Optimizer with D.C. Silicone 704
Temperature Limits
Humidity limits
0–100% relative humidity
Turn-on time
The Rosemount ERS System will be within specifications within six
seconds from when power is applied to the system.
Damping
The P
and P
Pressure measurements and the DP calculation
HI
LO
may be independently dampened from 0–60 seconds.
Failure mode alarm
If self-diagnostics detect a gross failure in the Rosemount ERS
System, the analog output will be driven off-scale to alert the user.
Rosemount standard (default), NAMUR, and custom alarm levels
are available. High or low alarm signal is selectable via a switch
located on the LCD display/device electronics located in ERS
Primary Unit.
Configuration
Default (Rosemount standard)
(1)
NAMUR compliant
Custom
(2)
1. Analog output levels are compliant with NAMUR
recommendation NE 43, see option codes C4 or C5.
2. Low alarm must be 0.1 mA less than the low saturation. High
alarm must be 0.1 mA greater than the high saturation.
Specifications and Reference Data
High alarm
Low alarm
21.75 mA
3.75 mA
22.5 mA
3.6 mA
20.2 to 23.0 mA
3.54 to 3.8 mA
A.3 Physical specifications
A.3.1 Maximum cable length
For maximum cable lengths, see
cable specifications" on page
For SIS maximum lengths see
certified identification" on page
A.3.2 Electrical connections
1
/
–14 NPT, G
1
/
, and M20 x 1.5 conduit. HART interface
2
2
connections fixed to terminal block of ERS primary unit.
A.3.3 Process connections
Coplanar gage/absolute sensor (Rosemount 3051SAM_ _G,
Rosemount 3051SAL _ _A)
1
Standard
/
–18 NPT on 2
4
1
/
–14 NPT and RC
2
Flange
1
/
–14 NPT and RC
2
Adapters
1
/
–14 NPT and RC
2
In-Line gage sensor/absolute (Rosemount 3051SAM_ _T,
Rosemount 3051SAL _ _E)
1
Standard
/
–14 NPT female
2
F11 Code
Non-threaded instrument flange (available in SST for
sensor ranges 1-4 only)
1
G11 Code
G
/
A DIN 16288 Male (available in SST for sensor ranges
2
1–4 only)
Autoclave type F-250C (pressure relieved
1
H11 Code
thread;
/
OD high pressure tube 60° cone; available in SST
4
for sensor range 5 only)
Liquid level sensor (Rosemount 3051SAL)
ANSI/ASME B16.5: 2-, 3-, and 4-in. with Class 150, Class
300, and Class 600 flanges
EN 1092-1: DN 50, DN 80, and DN 100 with PN 10/16 and
FF Seal
PN 40 flanges
JIS B2238: 50A, 80A, and 100A with 10K, 20K, and 40K
flanges
ANSI/ASME B16.5: 3-in., and 4-in. with Class 150, Class
300, and Class 600 flanges
EF Seal
EN 1092-1: DN 80 and DN 100 with PN10/16 and PN 40
flanges
JIS B2238: 80A and 100A with 10K, 20K, and 40K flanges
ANSI/ASME B16.5: 1-in. and 1.5-in. with Class 150, Class
300, and Class 600 flanges
RF Seal
EN 1092-1: DN 25 and DN 40 with PN10/16 and PN 40
flanges
JIS B2238: 25A and 40A with 10K, 20K, and 40K flanges
1
1
RT Seal
/
–18 NPT,
/
–14 NPT,
4
2
1
SC Seal
1
/
-, 2-, and 3-in. Tri-Clover style Tri Clamp
2
SS Seal
4-in. Sch.5 Tri Clamp
Reference Manual
00809-0100-4804, Rev CB
"Rosemount 3051S ERS System
16.
"Rosemount ERS Systems safety
61.
1
/
-in. centers
8
1
/
on 2-in. (50,8 mm) centers
2
1
1
/
on 2
/
-in. (54,0 mm) centers
2
8
1
1
/
on 2
/
-in. (57,2 mm) centers
2
4
9
/
–18 gland
16
3
/
–14 NPT, and 1–11.5 NPT
4
71
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