Promag CON-485 Series Technical Information PDF herunterladen (Seite 3)

Proline Promag 50W, 53W

Endress+Hauser 3

Input

Measured variable Flow rate (proportional to induced voltage)

Measuring range Typically v = 0.01...10 m/s with the specified measuring accuracy

Operable flow range Over 1000 : 1

Input signal Status input (auxiliary input):

U = 3…30 V DC, R

= 5 kΩ, galvanically isolated.

Configurable for: totalizer(s) reset, measured value suppression, error-message reset.

Status input (auxiliary input) with PROFIBUS DP and MODBUS RS485:

U = 3…30 V DC, R

= 3 kΩ, galvanically isolated

Switching level: 3...30 V DC, independent of polarity

Configurable for: totalizer(s) reset, measured value suppression, error-message reset,

batching start/stop (optional), batch totalizer reset (optional)

Current input (for Promag 53 only):

Active/passive selectable, galvanically isolated, full scale value selectable,

resolution: 3 µA, temperature coefficient: typ. 0.005% o.r./°C (o.r. = of reading)

active: 4...20 mA, R

≤ 150 Ω, U

out

= 24 V DC, short-circuit-proof

passive: 0/4...20 mA, R

≤ 150 Ω, U

max

= 30 V DC

Output

Output signal Promag 50

Current output:

active/passive selectable, galvanically isolated, time constant selectable (0.01...100 s),

full scale value selectable, temperature coefficient: typ. 0.005% o.r./°C (o.r. = of reading),

resolution: 0.5 µA

• active: 0/4…20 mA, R

< 700 Ω (HART: R

≥ 250 Ω)

• passive: 4…20 mA, operating voltage V

18...30 V DC, R

≤ 150 Ω

Pulse/frequency output:

passive, open collector, 30 V DC, 250 mA, galvanically isolated.

• Frequency output: full scale frequency 2...1000 Hz (f

max

= 1250 Hz), on/off ratio 1:1,

pulse width max. 10 s.

• Pulse output: pulse value and pulse polarity selectable, max. pulse width configurable

(0.5...2000 ms)

PROFIBUS DP interface:

• Transmission technology (Physical Layer): RS485 in accordance with ANSI/TIA/EIA-485-A: 1998,

galvanically isolated

• Profile version 3.0

• Data transmission rate: 9.6 kBaud...12 MBaud

• Automatic data transmission rate recognition

• Function blocks: 1 x analog input, 3 x totalizer

• Output data: volume flow, totalizer

• Input data: positive zero return (ON/OFF), totalizer control, value for local display

• Cyclic data transmission compatible with previous model “Promag 33”

• Bus address adjustable via miniature switches or local display (optional) at the measuring device

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Promag CON-485 Series Technical Information Seite 3

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