SMAR LD291, Operation And Maintenance Instruction Manual

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LD291 - Operation Maintenance Instruction Manual
6.2
Zero and Span
Adjustments By configurator or local adjustment from 0 to 0.975 URL, URL = Upper Range Limit.
Failure Alarm
In case of sensor or circuit failure, the self-diagnostics drives the output to 3.6 or 21.0 mA, according to
the user's choice.
Volumetric
Displacement Less than 0.15 cm
3
(0.01 in
3
)
Overpressure Limits
( MWP – Maximum
Working Pressure )
14 MPa (2000 psi) for range 2,3 and 4.
31 MPa (4500 psi) for ranges 5.
For ANSI/DIN Level flanges (
LD290L models):
150 #: 6 psia to 235 psi (-0.6 to 16 bar) at 199.4 °F (93 °C)
300 #: 6 psia to 620 psi (-0.6 to 43 bar) at 199.4 °F (93 °C)
600 #: 6 psia to 1240 psi (-0.6 to 85 bar) at 199.4 °F (93 °C)
PN10/16: -60 kPa to 1.02 MPa at 212 °F (100 °C)
PN25/40: -60 kPa to 2.55 MPa at 212 °F (100 °C)
These overpressures will not damage the transmitter, but a new calibration may be necessary.
Damping Adjustment
0 to 128 seconds in addition to intrinsic sensor response time (0.2 s) (via digital communication).
Humidity Limits 0 to 100% RH.
Configuration
Can be done through digital communication using the Hart Protocol or, partially, through local adjustment.
Configurator

CONF 401
It works in the windows platform (95, 98, 2000, XP and NT).
For equipment updates and HPC301 software, just check:
www.smarreasearch.com

Palm
See Palm Handbook.
Performance Specifications
Reference Conditions
Range starting at zero, temperature 25
o
C (77
o
F), atmospheric pressure, power supply of 24 Vdc, silicone oil
fill fluid, isolating diaphragms in 316L SS and digital trim equal to lower and upper range values.
Accuracy
For ranges 2, 3, 4 and 5:
±0.075% of span (for span >= 0.1 URL)
±[0.0375 + 0.00375 URL/SPAN] % of span (for span < 0.1 URL)
For Level Transmitter:
± 0.08 % of span (for span
≥ 0.1 URL)
± [0.0504 + 0.0047 URL/span] % of span (for span < 0.1 URL)
For Insertion Transmitter:
±0.2% of span
Stability

0.15% of URL for 5 years
Temperature Effect
± [0.02 URL + 0.06% of span], per 20 ºC (68 ºF) for span >= 0.2 URL
± [0.023 URL+0.045% of span], per 20ºC (68 ºF) for span < 0.2 URL
For Level Transmitter:
6 mmH
2
O per 20ºC for 4” and DN100.
17 mmH
2
O per 20ºC for 3” and DN80.
Power Supply Effect

0.005% of calibrated span per volt.
Mounting Position Effect Zero shift of up to 250 Pa (1 inH
2
O), which can be calibrated out. No span effect.
Electromagnetic
Interference Effect Designed to comply with, Approved according to IEC61326-1:2006, IEC61326-2-3:2006, IEC61000-6-
4:2006, IEC61000-6-2:2005.
Physical Specifications
Electrical Connection
See options in ordering code.
Process Connection
See options in ordering code.
Wetted Parts
316L SST and Hastelloy C276.
Diaphragm for sanitary models available in Monel 400 and Tantalum.
Nonwetted Parts
Electronic Housing
Injected aluminum with polyester painting or 316 SST. According to NEMA Type 4X or Type 4, IP66,
IP66W*.
*The IP66W sealing test (immersion) was performed at 1 bar for 24 hours. For any other situation, please consult Smar. IP66W
tested for 200h to according NBR 8094 / ASTM B 117 standard.