Operable Flow Range; Input Signal; Output; Output Signal - Endress+Hauser Proline Promass 40E Technical Information

Proline Promass 40E

Operable flow range

Input signal

Output signal

Signal on alarm

Load

Low flow cutoff

Galvanic isolation

Switching output

Endress+Hauser
Flow rates above the preset full scale value do not overload the amplifier, i.e. the totalizer values are
registered correctly.
Status input (auxiliary input):
U = 3 to 30 V DC, R = 5 kΩ, galvanically isolated.
i
Configurable for: totalizer reset, positive zero return, error message reset, zero point adjustment start,
batching start/stop (optional).

Output

Current output:
Active/passive selectable, galvanically isolated, time constant selectable (0.05 to 100 s), full scale
value selectable, temperature coefficient: typically 0.005% o.r./°C, resolution: 0.5 μA
• Active: 0/4 to 20 mA, R < 700 Ω (for HART: R
L
• Passive: 4 to 20 mA; supply voltage U
Pulse/frequency output:
Passive, open collector, 30 V DC, 250 mA, galvanically isolated.
• Frequency output: full scale frequency 2 to 1000 Hz (f
pulse width max. 10 s
• Pulse output: pulse value and pulse polarity selectable, pulse width configurable (0.5 to 2000 ms)
Current output
Failsafe mode selectable (e.g. in accordance with NAMUR Recommendation NE 43)
Pulse/frequency output
Failsafe mode selectable
Status output
Nonconductive in the event of a fault or if the power supply fails
see "Output signal"
Switch points for low flow are selectable.
All circuits for inputs, outputs, and power supply are galvanically isolated from each other.
Status output
• Open collector
• max. 30 V DC, 250 mA
• galvanically isolated
• Configurable for: error messages, Empty Pipe Detection (EPD), flow direction, limit values
≥ 250 Ω)
L
18 to 30 V DC; R ≥ 150 Ω
S i
= 1250 Hz), on/off ratio 1:1,
max
5