Sigma 980 Operating And Maintenance Manual page 16

Specifications
Ultrasonic Transducer
Operating Frequency
Beam Angle
Accuracy*
Range
Operating Temperature
Range
Material
Weight
Cable
Cable Length
Mounting
Dimensions (transducer only)
Connection
In-Pipe Ultrasonic Sensor
Operating Frequency
Accuracy
Range
Resolution
Operating Temperature
Range
Storage Temperature
Temperature Error
Material
Cable Length
Dimensions (transducer only)
Mounting
Connection
Page 14
Specifications
75 kHz
±12° (-10 dB)
±0.03 ft over 2-ft change in head, @ 20 °C, still air, ideal target, 50 ft cable
11.5 in. (minimum) to 10.7 ft (maximum), with ideal target @ 20° C, in still air with
50-ft cable.
-20 °C to 50 °C (-4 °F to 122 °F)
PVC housing with acoustic window
1.5 lb
Low-loss cable, coax cable RG 62/U
25 ft (7.6 m) standard, custom lengths up to 500 ft (contact manufacturer for
performance information at custom lengths)
Permanent and Adjustable Mounting Brackets
12.7 cm x 5.7 cm (5.0" H x 2.25" D)
Bare wire lead connection via terminal blocks
75 kHz
±0.014 ft for sensor to liquid distance between 2.86 inches and 13.5 ft at ±1 ft change
in head from calibration point, 20 °C still air, ideal target, 50 ft cable.
Distance from sensor to liquid: 0.64 inches (minimum) to 13.5 feet (maximum), @ 20
°C still air, ideal target, 50 ft cable.
0.0075 inches
-20 to 60 °C (-4 to 140 °F)
-20 to 60 °C (-4 to 140 °F)
0.00005 meter/°C typical
Stat-Kon A-E ABS Plastic
7.6 m (25 ft) standard, custom lengths up to 200 m (500 feet)
4.44 cm (1.75 in.) maximum diameter, 31.435 cm (12.375 in.) long
Dedicated Mounting Rings, Permanent Mounting Bracket (installs directly to pipe wall),
Adjustable Mounting Band Kit.
Bare lead connection via terminal blocks