Endress+Hauser Nivotester FTL325N Sicherheitshinweise Seite 11

Nivotester
Safety instructions:
Installation
Endress+Hauser
• Install the device according to the manufacturer's instructions and any other valid standards and regulations.
• Comply with the installation and safety instructions in the Operating Instructions.
• Do not operate the device outside the specified electrical, thermal and mechanical parameters.
• Protect the device from dust and humidity, e.g. in control rooms or in a suitable protective housing so that
ingress protection of at least IP55 according to EN 60529 is achieved.
• There should be a distance (thread measure) of at least 50 mm between intrinsically-safe and non-
intrinsically-safe terminals.
• Keep to the distances required in IEC 60079-11 and to the relevant standards and rules for combining the
device with other types and products on the same top-hat rail (see fig. 3).
• The instrinsically-safe input circuits are galvanically isolated from other circuits up to a peak value of the
nominal voltage of 375 V.
• The pertinent guidelines must be observed when intrinsically safe circuits are connected together
acc. EN/IEC 60079-14 (Proof of Intrinsic Safety).
Special conditions (X marking):
• Within zone 2, install the device in a cabinet so that an ingress protection of at least IP54 to IEC 60079-0,
Section 6.2 is achieved.
• Do not disconnect electrical connections under voltage.
Operating temperature range
Power circuit
Terminal connection:
1, 2
Contact circuits (level relay)
Terminal connections:
Channel 1 (CH1): 4, 5, 6
1
* Channel 2 (CH2): 22, 23, 24
1
* Channel 3 (CH3): 26, 27, 28
1
* not available in one channel version
Contact circuit (alarm relay)
Terminal connection:
15, 16
Sensor circuits
Terminal connections:
Channel 1 (CH1): 7, 8
1
* Channel 2 (CH2): 33, 34
1
* Channel 3 (CH3): 37, 38
1
* not available in one channel version
If using explosion protection group
[Ex ib] IIC/IIB the application is limited
to II (2) GD
EG 10 012 X; IECEx BKI 05.0003 X / XA00527F-A
–20 °C ≤ T ≤ +60 °C (individual installation)
amb
–20 °C ≤ T ≤ +50 °C (series installation)
amb
AC voltage version:
U = 85...253 V AC, 50/60 Hz
P ≤ 1.2 W (one channel version)
P ≤ 2.75 W (three channel version)
U ≤ 253 V AC, I ≤ 2 A, P ≤ 500 VA at cos ϕ ≥ 0.7
U ≤ 40 V DC, I ≤ 2 A, P ≤ 80 W
U ≤ 253 V AC, I ≤ 2 A, P ≤ 500 VA at cos ϕ ≥ 0.7
U ≤ 40 V DC, I ≤ 2 A, P ≤ 80 W
Connection data
≤ 12.0 V
U R
o i
≤ 34 mA
I C
o i
≤ 154 mW
P L
o i
[Ex ia] IIC
L
o
max. external capacitance at 0.5 mH
max. external inductance
1.0 mH
max. external capacitance or 30 mH
max. external inductance
[Ex ib] IIC
L
o
max. external capacitance or 30 mH
max. external inductance
DC voltage version:
U = 20...60 V DC
U = 20...30 V AC, 50/60 Hz
P ≤ 1.75 W (one channel version)
P ≤ 2.25 W (three channel version)
≥ 644 Ω
Trapezium-shaped
= 0 characteristic
= 0
[Ex ia] IIB
C L
o o
500 nF 1 mH
450 nF 5 mH
1.4 μF 120 mH
[Ex ib] IIB
C L
o o
1.4 μF 120 mH
C
o
2 μF
1.5 μF
9 μF
C
o
9 μF
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