Endress+Hauser Nivotester FTW325 Consignes De Sécurité page 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 located in a suitable protective housing
with ingress protection of at least IP55 to EN 60529.
• The device is an associated apparatus and may only be used outside explosion hazardous areas.
• If the intrinsically safe circuit which can be connected to the device passes through dust explosion-hazardous
areas of Zones 20 or 21, make sure that the devices connected to this circuit meet the requirements of
categories 1D or 2D and are certified accordingly.
• There must be a distance (thread measure) of at least 50 mm between intrinsically safe and non-intrinsically
safe terminals.
• When using parts from other manufacturers, keep to the ingress protection and distances for the housing as
stated in EN 60079-11 (Fig. 2).
• 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.
IEC/EN 60079-14 (Proof of Intrinsic Safety).
• All devices that are connected to the intrinsically safe circuits must be included in the potential equalization.
Operating temperature range
Power circuit
Terminal connections:
1, 2
Contact circuit (Limit relay)
Terminal connections:
Channel 1 (CH1): 4, 5, 6
1
Channel 2 (CH2)* : 15, 16, 17
1
* dependent on the configuration
Contact circuit (Alarm relay)
1
Terminal connections * :
15, 16, 17
1
* dependent on the configuration
Sensor circuit
Terminal connections:
Channel 1 (CH1): 9
1
Channel 2 (CH2)* : 8
Earth: 7
1
* dependent on the configuration
If using explosion protection group
[Ex ib] IIC/IIB the application is limited
to II (2) G
DMT 02 ATEX E 203 X / XA196F-B
−20 °C ≤ T ≤ +60 °C (individual installation)
amb
−20 °C ≤ T ≤ +50 °C (series installation)
amb
AC
U = 85...253 V AC, 50/60 Hz
P ≤ 4.5 VA
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
Uo ≤ 12.9 V
Io ≤ 15.5 mA
Po ≤ 116 mW
max. external capacitance at
max. external inductance
max. external capacitance or
max. external inductance
max. external capacitance or
max. external inductance
DC
U = 20...60 V DC
U = 20...30 V AC, 50/60 Hz
P ≤ 1.2 W
P ≤ 2 VA
Trapezium-shaped
characteristic
[Ex ia] IIC [Ex ia] IIB
Lo Co Lo Co
0.5 mH 710 nF 2 mH 2.9 μF
1.0 mH 550 nF 5 mH 2.1 μF
5.0 mH 1 μF 15 mH 6.5 μF
[Ex ib] IIC [Ex ib] IIB
Lo Co Lo Co
5.0 mH 1 μF 15 mH 6.5 μF
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