Endress+Hauser Proline Promass 40E, Техническая информация

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Proline Promass 40E
Hauser 5
Operable flow range Flow rates above the preset full scale value do not overload the amplifier, i.e. the totalizer values are
registered correctly.
Input signal Status input (auxiliary input):
U = 3 to 30 V DC, R
i
= 5 k Ω , galvanically isolated.
Configurable for: totalizer reset, positive zero return, error message reset, zero point adjustment start,
batching start/stop (optional).
Output
Output signal 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 μ A
• Active: 0/4 to 20 mA, R
L
< 700 Ω (for HART: R
L
≥ 250 Ω )
• Passive: 4 to 20 mA; supply voltage U
S
18 to 30 V DC; R
i
≥ 150 Ω
Pulse/frequency output:
Passive, open collector, 30 V DC, 250 mA, galvanically isolated.
• Frequency output: full scale frequency 2 to 1000 Hz (f
max
= 1250 Hz), on/off ratio 1:1,
pulse width max. 10 s
• Pulse output: pulse value and pulse polarity selectable, pulse width configurable (0.5 to 2000 ms)
Signal on alarm 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
Load see "Output signal"
Low flow cutoff Switch points for low flow are selectable.
Galvanic isolation All circuits for inputs, outputs, and power supply are galvanically isolated from each other.
Switching output Status output
• Open collector
• max. 30 V DC, 250 mA
• galvanically isolated
• Configurable for: error messages, Empty Pipe Detection (EPD), flow direction, limit values