Detcon PI-700 - Manual (Page 8)

Model PI-700
PI-700 Instruction Manual Rev. 2.5 Page 4 of 54
2. Installation
2.1 ATEX Operational Guidelines for Safe Use
1. Install sensor only in areas with classifications matching with those described on the approval label.
Follow all warnings listed on the label.
Figure 6 PI-700 ATEX Approval Label
2. Ensure that the sensor is properly threaded into a suitable explosion-proof rated junction box with a
downward pointing female ¾” NPT threaded connection. The sensor should be threaded up at least 5
full turns until tight, with the LED display facing forward. Avoid use of Teflon Tape, or any type of
non-conductive pipe thread coating on the NPT threaded connection.
3. A good ground connection should be verified between the sensor’s metal enclosure and the junction
box. If a good ground connection is not made, the sensor can be grounded to the junction box using
the sensor’s external ground lug. Also verify a good ground connection between the junction box and
earth ground.
4. Proper precautions should be taken during installation and maintenance to avoid the build-up of static
charge on the plastic components of the sensor. These include the splashguard and splashguard
adapter.
5. Do not substitute components that are not authorized by the scope of the safety approval. This may
impair the intrinsic safety rating.
6. Do not operate the sensor outside of the stated operating temperature limits.
7. Do not operate the sensor outside the stated operating limits for voltage supply.
8. The sensor power supply common (black wire) must be referenced to the metal enclosure body
(ground) during installation.
9. These sensors meet EN60079-0:2009, EN60079-1:2007, EN60079-11:2012 and EN50020.
10. These sensors have a maximum safe location voltage of Um=125V.
11. These sensors pass dielectric strength of 500VRMS between circuit and enclosure for a minimum of 1
minute at a maximum test current of 5mA.