Power Supply; Overvoltage Protection - Endress+Hauser Levelflex FMP50 PROFIBUS PA Operating Instructions Manual

Levelflex FMP50 PROFIBUS PA
Endress+Hauser
7.1.4

Power supply

PROFIBUS PA, FOUNDATION Fieldbus
1)
"Power supply; Output"
E: 2-wire; FOUNDATION Fieldbus, switch output
G: 2-wire; PROFIBUS PA, switch output
1) Feature 020 of the product structure
2) Feature 010 of the product structure
3) Input voltages up to 35 V will not spoil the device.
Polarity sensitive No
FISCO/FNICO compliant Yes
according to IEC 60079-27
7.1.5

Overvoltage protection

If the measuring device is used for level measurement in flammable liquids which requires
the use of overvoltage protection according to DIN EN 60079-14, standard for
test procedures 60060-1 (10 kA, pulse 8/20 μs), an overvoltage protection module has to
be installed.
Integrated overvoltage protection module
An integrated overvoltage protection module is available for 2-wire HART as well as
PROFIBUS PA and FOUNDATION Fieldbus devices.
Product structure: Feature 610 "Accessory mounted", option NA "Overvoltage protection".
Resistance per channel
Threshold DC voltage
Threshold impulse voltage
Capacitance at 1 MHz
Nominal arrest impulse voltage (8/20 μs)
External overvoltage protection module
HAW562 or HAW569 from Endress+Hauser are suited as external overvoltage protection.
For detailed information please refer to the following documents:
• HAW562: TI01012K
• HAW569: TI01013K
2)
"Approval"
• Non-Ex
• Ex nA
• Ex nA[ia]
• Ex ic
• Ex ic[ia]
• Ex d[ia] / XP
• Ex ta / DIP
• CSA GP
• Ex ia / IS
• Ex ia + Ex d[ia] / IS + XP
Technical data
Electrical connection
Terminal voltage
3)
9 to 32 V
3)
9 to 30 V
2 × 0.5 Ω max.
400 to 700 V
< 800 V
< 1.5 pF
10 kA
51