10 Technical data
Proline Promag 51
106
Hauser
Input signals
Status input (auxiliary input):
U = 3…30 V DC, R
i
= 5 k
Ω
,
galvanically isolated
Configurable for: totalizer reset, positive zero return
With custody transfer measurement, error messages can only be reset and a display test function
activated via the status input!
10.1.4
Output
Output signal
Current output:
active/passive selectable, galvanically isolated, time constant selectable (0.01…100 s),
full scale value selectable, temperature coefficient: typically 0.005 % o.f.s./°C; resolution: 0.5
µ
A
• active: 0/4…20 mA, R
L
< 700
Ω
(for HART: R
L
≥
250
Ω
)
• passive: 4…20 mA, supply voltage V
s
= 18...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…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…2000 ms)
Signal on alarm
Certifiable instruments:
• Current output
→
failsafe mode selectable (see Page 92), e.g. to NAMUR recommendation
NE 43
• Pulse/frequency output
→
failsafe mode selectable (see Page 92)
• Status output
→
“non-conductive” by fault or power supply failure (see Page 92)
Certified instruments:
• Current output
→
failsafe mode selectable (see Page 92)
• Pulse/frequency output
→
fallback value (only with certified pulse output)
• Status output
→
“non-conductive” by fault or power supply failure.
Switching response selectable (see Page 92)
• In custody transfer mode, error messages can be reset via the status input once the fault
has been cleared. Resetting error messages
Load
see “output signal”
Switching output
Status output:
Open collector, max. 30 V DC / 250 mA, galvanically isolated
Configurable for: error messages, Empty Pipe Detection (EPD/OED), flow direction, limit values
Low flow cutoff
• Certifiable instruments: Switch points for low flow cutoff are selectable
• Certified instruments: Switch points permanently set (On at 0.02 m/s; Off at 0.04 m/s)
Galvanic isolation
All circuits for inputs, outputs, and power supply are galvanically isolated from each other.
Содержание Proline Promag 51
Страница 4: ...QUICK SETUP commissioning Proline Promag 51 4 Endress Hauser...
Страница 10: ...1 Safety instructions Proline Promag 51 10 Endress Hauser...
Страница 52: ...4 Wiring Proline Promag 51 52 Endress Hauser...
Страница 80: ...7 Maintenance Proline Promag 51 80 Endress Hauser...
Страница 104: ...9 Trouble shooting Proline Promag 51 104 Endress Hauser...
Страница 122: ...11 Index Proline Promag 51 122 Endress Hauser...
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