Endress+Hauser HART Proline Promass 83, Руководство по эксплуатации

Страница: 109 / 148

Proline Promass 83 Technical data
Hauser 109
Input signal Status input (auxiliary input):
U = 3 to 30 V DC, R
i
= 5 kW, galvanically isolated.
Configurable for: totalizer reset, positive zero return, error message reset, start zero point
adjustment, batching start/stop (optional)
Current input:
Active/passive selectable, galvanically isolated, resolution: 2
μ
A
• Active: 4 to 20 mA, R
L
< 700 W, U
out
= 24 V DC, short-circuit proof
• Passive: 0/4 to 20 mA, R
i
= 150 W, U
max
= 30 V DC
10.4 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% of full scale value/°C,
resolution: 0.5 mA
• Active: 0/4 to 20 mA, R
L
< 700 W (for HART: R
L
≥
250 W)
• Passive: 4 to 20 mA; supply voltage U
S
18 to 30 V DC; R
i
≥
150 W
Pulse/frequency output:
Active/passive selectable, galvanically isolated
• Active: 24 V DC, 25 mA (max. 250 mA during 20 ms), R
L
> 100 W
• passive: open collector, 30 V DC, 250 mA
• Frequency output: full scale frequency 2 to 10000 Hz (f
max
= 12500 Hz), on/off ratio 1:1,
pulse width max. 2 s
• Pulse output: pulse value and pulse polarity selectable, pulse width configurable (0.05 to
2000 ms)
Signal on alarm Current output:
Failsafe mode selectable (for example, according to NAMUR Recommendation NE 43)
Pulse/frequency output:
Failsafe mode selectable
Relay output:
De-energized in the event of fault or power supply failure
Load See "Output signal"
Switching output Relay output:
Normally closed (NC or break)
or normally open (NO or make) contacts available (default: relay 1 = NO, relay 2 = NC), max.
30 V / 0.5 A AC; 60 V / 0.1 A DC, galvanically isolated.
Configurable for: error messages, Empty Pipe Detection (EPD), flow direction, limit values,
batching valve 1 and 2 (optional).
Low flow cut off Switch points for low flow cut off are selectable.
Galvanic isolation All circuits for inputs, outputs, and power supply are galvanically isolated from each other.