EASZ-2 Manual v1.12 - 12.2.2018 Page 7 / 30
3. How the EASZ-2 Works
3.1. Unit Description
The EASZ-2 comprises 2 main parts: the Body and the Sensor Pipe.
The Body has two main parts, the base and the cover which screws onto the base. Both parts are die-
cast aluminium and powder-coated and the cover also has a safety glass viewing window. All the
electronics are housed in the body and connections to the unit are made through threaded holes on either
side of the body fitted with glands.
The display board can be seen behind the round viewing window on the front of the cover. The display
board has a high intensity backlight that changes colour according to status and a LCD display that is
used to set up the unit and show current values.
The sensor is housed in a stainless steel pipe and is connected to the body using a threaded bolt. Sealing
parts on the transmitter are made from Viton and the sealing parts on the wetted parts are made from
Peek. The unit is designed for petroleum products that do not degrade these materials. Joints are factory
fitted and tested and must not been loosened.
3.2. EASZ-2 Variants
The EASZ-2 is available in two variants:
3.2.1. EASZ-2Sd-L for Standard Non-Hazardous Areas (Non-Ex)
This unit is a standard product and MUST NOT be used in a hazardous area!
3.2.2. EASZ-2Ex-L for Hazardous Areas (Ex)
This variant can be installed in defined hazardous areas with potentially explosive atmospheres in
compliance with the 94/9/EC ATEX directive. The surface temperature must not exceed that indicated on
the Data Plates.
The Body is a flameproof enclosure (Ex type “d”) to which the sensor pipe is screwed (Ex type “ia”). The
flameproof Body comprises of a base and cover. The cover screws onto the base and this joint is the
threaded flameproof joint.
Sensor Pipe
Varies depending on
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General