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BE 57-660 Eclipse Model 700 Guided Wave Radar Transmitter
3.6.1 Functional/Physical
Performance
Reference Conditions
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Reflection from liquid, with dielectric constant in center of selected range, with
a 1.8 m (72") coaxial probe at +20 °C (+70 °F), in Auto Largest Threshold Mode
Linearity
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Coaxial Probes:
<0.1% of probe length or 2.5 mm (0.1 inch), whichever is greater
Single Rod/Cable:
<0.3% of probe length or 7.5 mm (0.3 inch), whichever is greater
Accuracy
Coaxial:
±0.1% of probe length or ±2.5 mm (0.1 inch), whichever is greater
Single Rod/Cable:
±0.5% of probe length or ±13 mm (0.5 inch), whichever is greater
Interface Operation:
Coaxial: ±25 mm (1 inch) for an interface thickness greater than 50 mm (2 inches)
Resolution
±1 mm or 0.1 inch
Repeatability
<2.5 mm (0.1 inch)
Hysteresis
<2.5 mm (0.1 inch)
Response Time
Approximately 1 second
Initialization Time
Less than 10 seconds
Ambient Temperature Effect
Approx. ±0.02 % of probe length/degree C (for probes greater than 2.5 m (8 feet))
Process Dielectric
<7.5 mm (0.3 inch) within selected range
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Specifications will degrade in Fixed Threshold mode.
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Linearity in top 46 cm (18 inches) of twin cable and single rod probes in tanks will be application dependent.
