Example: DN100, Q
p
= 60m
3
/h and Q = 1.2 m
3
/h
Ε
f
= ± (2 + 0.02 Q
p
/Q) = ± (2 + 0.02 (60/1.2)) = ± (2 + 1) = ± 3%
10.2 FUS380 and FUE380 systems
Table 10-1 Technical data SITRANS FUS380 and FUE380
Description Specification
Enclosure design/mate‐
rial
Fiber glass reinforced polyamide in light-gray color
Enclosure IP67 according to EN 60529 and DIN 40050 (NEMA 4X/6)
Wall mounting kit Terminal box made of fiber glass reinforced polyamide in light-gray color with
cable glands and a stainless steel bracket for wall or pipe mounting
Cable glands In wall mounting kit:
3 x M20 PA plastic cable glands (1 for mains power supply cable, and 2 for
output cables)
Ambient temperature
● MID version: -10 °C to +55 °C (14 °F to 131 °F)
● Non-MID version: -10 °C to +60 °C (14 °F to 140 °F)
Storage temperature −40 °C to + 85 °C (−40 °F to +185 °F)
Sensor cables Coaxial cable, impedance 75 Ohm, ∅ app. 6 mm
Connection cable Cable length:
Max. 30 meter between transmitter and sensor terminal box
(5 m (16.4 ft), 10 m (32.8 ft), 20 m (65.6 ft), or 30 m (98.4 ft) available)
Mechanical vibration 2 g, 1 to 800 Hz sinusoidal in all directions according to IEC 68-2-6
Power supply Battery
1)
:
● Replaceable 3.6 V LiSOCl (Lithium Thionyl Chloride)
● Double battery pack 33 Ah or single back-up battery 16.5 Ah;
● Battery change interval: 4.2 / 6 years at 60 °C (140 °F) operation
Mains:
● 87 to 265 V AC (50 to 60 Hz)
Display
● LCD, 8 digits, additional 2 digits and symbols for status information
● Units: Volume unit: m
3
(default display unit), Flow unit: m
3
/h (default
display unit)
● Alarm codes (F 1 to F 9) for: path 1 or 2 not measuring, internal failure,
power supply failure, flow overload, pulse output frequency overload, data
logger warning
Push button One push button for toggling between display information
Measuring function
● 0.5 Hz battery mode
or
● 15 Hz mains-powered
Communication IrDA on display panel (Modbus RTU protocol)
Technical data
10.2 FUS380 and FUE380 systems
SITRANS FUS380/FUE380
88 Operating Instructions, 05/2018, A5E00730100-AE