PR electronics Hart 7 Manuel De Produit page 35

643xD1: Terminal: 11,12
643xD2: Terminal: 11,12
643xD3: Terminal: Ch1: 11,12
Ex ia and ib installation
Ui: 30 VDC; Ii: 120 mA; Li: 0 μH; Ci: 1.0nF
P Temperature
i
per channel
900 mW
750 mW
610 mW
General installation instructions
Year of manufacture can be taken from the first two digits in the serial number.
If the enclosure is made of non-metallic materials or is made of metal having a paint
layer thicker than 0,2 mm (group IIC), or 2 mm (group IIB, IIA, I), or any thickness
(group III), electrostatic charges shall be avoided.
For EPL Ga, if the enclosure is made of aluminum, it must be installed such, that
ignition sources due to impact and friction sparks are excluded.
The distance between terminals, inclusive the wires bare part, shall be at least 3 mm
separated from any earthed metal.
The test pins allow measurement of loop current directly while maintaining loop
integrity. Power must be connected to the transmitter when using the test pins. For
hazardous area installation, only certified test equipment may be used.
If the transmitter was applied in type of protection Ex nA or Ex ec, it may afterwards
not be applied for intrinsic safety.
The front connector and front test pads provides an intrinsically safe extension-port
signal and may only be connected to dedicated equipment of PR electronics.
Warning: Do not connect or disconnect plugs and sockets when energized.
For installation in a potentially explosive dust atmosphere, the following
instructions apply:
The transmitter shall be mounted in an enclosure, that is providing a degree of
protection of at least IP5X according to IEC60529. The enclosure shall be suitable for
the application and correctly installed.
Cable entry devices and blanking elements shall fulfill the same requirements.
For EPL Da, The surface temperature of the enclosure, for a dust layer with a
maximum thickness of 5mm, is the ambient temperature +20 K.
For installalation in mines the following instructions apply:
The transmitter shall be mounted in a metal enclosure that is providing a degree of
protection of at least IP54 according to IEC60529.
Ch2: 21,22
Maximum ambient temperature
class Single and dual input
T6
T5
T4
T6
T5
T4
T6
T5
T4
6437V102-FR
+50 °C
+65 °C
+85 °C
+55 °C
+70 °C
+85 °C
+60 °C
+75 °C
+85 °C
Two channel
+45 °C
+60 °C
+85 °C
+50 °C
+65 °C
+85 °C
+55 °C
+70 °C
+85 °C
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