Endress+Hauser Prosonic FDU91

Ultrasonic measurement Time-of-Flight

Ultrasonic level and flow sensor Prosonic S FDU91. Continuous measurement method. For connection to Prosonic S FMU90/FMU95 transmitter. It has a built-in temperature sensor to correct the signal's time of flight.

Ultrasonic sensor for level and flow measurement for connection to FMU9x (measuring range up to 10m).

Ultrasonic

Separated version with field housing or top hat rail housing for control cabinet instrumentation, 300m in-between sensor and transmitter

4-wire (HART , Profibus DP)

+/- 2mm + 0.17% of measured distance

-40 В°C ... 80 В°C
(-40 В°F ... 176 В°F)

-40 В°C ... 80 В°C
(-40 В°F ... 176 В°F)

0.7 bar ... 4 bar abs
(10 psi ... 58 psi)

PVDF (fully welded IP68 / NEMA 6P)

G / NPT 1"

0.3 m (1 ft)

5 m (16ft)

Transmitter:
4 ... 20 mA HART
Profibus DP

ATEX, FM, CSA, IEC Ex, JPN Ex, INMETRO, NEPSI, EAC Ex

Second 4...20mA output

Transmitter:
FMU90

Ultrasonic

Version with separate transmitter in field housing or top hat rail housing
Cost effective solution for open channel flow measurement in water / wastewater plants

accuracy:
distance measurement: +/- 2mm + 0.17%
resolution:
distance measurement: 1mm

max measuring distance up to 10m / 32ft

atm.

-40...80В°C
(-40...176В°F)

IP68

Transmitter

Transmitter:
4...20mA HART
Option: second 4...20mA output

Transmitter

HART, PROFIBUS DP

ATEX, FM, CSA, IEC Ex, INMETRO, NEPSI, EAC Ex

Ultrasonic

Separated version with field housing or top hat rail housing for control cabinet instrumentation, 300 m in-between sensor and transmitter

4-wire (HART, Profibus DP)

+/- 2 mm + 0.17% of measured distance

-40 В°C ... 80 В°C
(-40 В°F ... 176 В°F)

-40 В°C ... 80 В°C
(-40 В°F ... 176 В°F)

0.7 bar ... 4 bar abs
(10 psi ... 58 psi)

PVDF (fully welded IP68 / NEMA6P)

G / NPT 1"

0.3 m (1 ft)

Application

Max. measurement distance

Transmitter:
4 ... 20 mA HART
Profibus DP

ATEX, FM, CSA, IEC Ex, INMETRO, NEPSI, EAC Ex

Second 4...20 mA output

Transmitter:
FMU90, FMU95

Application limits