Masoneilan SVI3 Installation and Maintenance Manual
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6. Specifications and References
6.1 Physical and Operational Specifications
This section provides the physical and operational specifications for the SVI3.
Specifications are subject to change without notice.
Table 11: Environmental Specifications
Operating Temperature Limits
• Standard Temperature Version: -40° F to 185° F (-40° C to 85° C)
• Extreme Temperature Version: -67° F to 185° F (-55° C to 85° C)
Storage Temperature Limits
-67° F to 200° F (-55° C to 93° C)
Instrument Air Dew Point
At least 18° F (-7° C) below minimum anticipated ambient temperature
Temperature Effect
< 0.005% /° F typical; -40° F to 180° F (< 0.01% /° C typical; -40° C to 82°
C)
Supply Pressure Effect
0.05% per psi unit (.73% per bar unit)
Relative Humidity
10 to 90% non-condensing
Humidity Effect
Less than 0.2% after 2 days at 104° F (40° C), 95% relative humidity.
Insulation Resistance
Greater than 10 G Ohms at 50% RH.
MTBF
49 years based on MIL handbook calculation for electronic parts and field
data on mechanical parts
Electromagnetic Compatibility
Electrostatic
Electrostatic discharge — No effect with contact discharge level of 4 kV
and air discharge level of 8 kV (EN 1000-4-2)
Radio frequency interference — 80-1000MHz@10v/m;
1000-2000MHz@3V/m and 2000-2700MHz@1V/m 1kHz 80% AM
Fast Transient Burst
No effect at 2 kV (Coupling clamp EN1000-4-4).
Vibration Influence
4 mm at 5 - 15 Hz - Negligible
2 G at 15 - 150 Hz - Less than 2% of span
1 G at 150 - 2000 Hz - Less than 2% of span
Tropical Environment
Compatibility
-Fungus resistance per ASTM-G21
-Exposed circuits covered with anti-fungal coating
-Positively pressurized housing with insect resistance vents
