SMAR LD290, Руководство по эксплуатации и обслуживанию

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LD290
– Operation and Maintenance Instruction Manual
5.4
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 Model:
±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 LD290L
6 mmH
2
O per 20
o
C for 4” and DN100
17 mmH
2
O per 20
o
C 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
Approved according to IEC61326-1:2006, IEC61326-2-3:2006, IEC61000-6-4:2006, IEC61000-6-2:2005.
Physical Specifications
Electrical
Connection
1/2 -14 NPT, PG 13.5, or M20 x 1.5.
Process
Connection
See ordering code.
Wetted Parts
Isolating Diaphragms and Process Connection
316L SST or Hastelloy C276.
Nonwetted Parts
Electronic Housing
Injected aluminum or 316 SST with polyester painting with option 316 without painting. 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.
Level Flange (LD290L)
316L SST, Hastelloy C276
Fill Fluid
Silicone or Inert Fluorolube Oil or krytox oil or Halocarbon oil.
Cover O-Rings
Buna-N.
Mounting Bracket
Optional universal mounting bracket for surface or vertical/horizontal 2”-pipe (DN 50) Carbon Steel zinc plated or 316
SST. Accessories (bolts, nuts, washers, and U-clamp) in Carbon Steel or 316 SST.
Identification Plate
316 SST.
Approximate
Weights
< 2.0kg (4 lb): aluminum housing without mounting bracket.