Electronic differential pressure Deltabar FMD71 -



The electronic dp Deltabar FMD71 is a differential pressure system, used to measure the pressure or level, volume or mass of liquids in pressurized tanks or distillation columns/evaporators. The high pressure sensor (HP) measures the hydrostatic pressure. The low pressure sensor (LP) measures the head pressure. The level is calculated in the transmitter using these two digital values. The electronic dp system eliminates issues of traditional differential pressure measurements.

Product information

Measuring Principle
Differential pressure
Electronic differential pressure transmitter with ceramic sensor (Ceraphire) for level, volume or ma
Supply voltage
4...20 mA HART:; 12...45V DC (Non Ex); Ex ia: 12...30V DC
Reference Accuracy
0.075% of individual sensor,; "PLATINUM" 0.05% of individual sensor
Long term stability
0.05% of URL/year of individual sensor
Process temperature
–25...+150°C; (–13...+302°F)
Ambient temperature
–40...+80°C; (–40...+176°F)
Measuring cell
100 mbar...40 bar; (1.5 psi...600 psi)
Vacuum resistance
0 mbar abs.
Max. Turn down
100 : 1