E+E Elektronik EE300Ex, User Manual

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User Manual EE300Ex Humidity / Temperature Sensor
3.2 Enclosure
The EE300Ex features has a modular design and consists of:
• Bottom section with the connection and grounding terminals
• Front section with the electronics and the probe
3.2.1 Drilling Pattern for Installing the Enclosure (mm / inch)
When the front section has been removed from the hazard area, e.g. for calibration, the empty bottom
section shall be protected against dirt and electrostatic charge with the blind front cover HA011401 (see
accessories).
Unused cable glands shall be closed with appropriate sealing plugs (see accessories).
3.3 Assembly in Category 1 (Zone 0 / 20); Division 1
Only intrinsically safe power supply devices are approved to supply EE300Ex in category 1 or Division 1.
In areas belonging to gas group IIC or Class I, Division 1, Group A, B, it must be ensured that during
installation and operation, the possibility of impact and friction sparks has been excluded in rarely
occurring fault situations.
front section
bottom section
To mount the bottom section use
4 screws diameter < 4.5 mm
(0.18“)
167
(6.6“)
70
(2.8“)
4.5
(0.18“)
8.4
(0.33“)