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Installation, Atex operational guidelines for safe use, Sensor placement – Detcon TP-524D User Manual

Page 8: Figure 6 tp 524d atex approval labels, 1 atex operational guidelines for safe use, 2 sensor placement

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Model TP-524D

TP-524D Instruction Manual

Rev. 0.5

Page 4 of 36

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.

DETCON, THE WOODLANDS, TEXAS, USA
MODEL TP-524D
RATED: 12-28VDC, 100 mA @ 24VDC

detcon, inc.

SIRA

09ATEX1351X

II 2 G Ex d IIB +H2 T4

Tamb = -40°C to +60°C

0035

WARNING:Keep cover tight while circuits are Alive.
WARNING:Understand manual before operating

Serial #

Date Code

DETCON, THE WOODLANDS, TEXAS, USA
MODEL TP-524D
RATED: 12-28VDC, 100 mA @ 24VDC

detcon, inc.

SIRA

09ATEX1351X

II 2 G Ex d IIB +H2 T4
T amb = -20°C to +60°C

0035

WARNING:Keep cover tight while circuits are Alive.
WARNING:Understand manual before operating

Serial #

Date Code

Figure 6 TP 524D ATEX Approval Labels

Detcon Condulets

Killark Condulets

2. Ensure that the sensor is properly mounted in a vertical orientation with sensor facing down.

Avoid

use of Teflon Tape, or any type of non-conductive pipe thread coating on the NPT threaded
connection.

3. Use ¾” NPT plugs properly rated for hazardous locations to block any unused connections

4. Removal of the Junction box cover or threaded sensor housing (399-800000-000) violates the Ex d

protection method and hence power must be removed from the sensor prior its safe removal.

5. 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.

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. These sensors meet EN60079-0, EN60079-1.

2.2 Sensor Placement

Selection of sensor location is critical to the overall safe performance of the product. Five factors play an
important role in selection of sensor locations:

(1) Density of the gas to be detected
(2) Most probable leak sources within the industrial process
(3) Ventilation or prevailing wind conditions
(4) Personnel exposure
(5) Maintenance access
(6) Additional Placement Considerations

Density

Placement of sensors relative to the density of the target gas is such that sensors for the detection of heavier
than air gases should be located within 4 feet of grade as these heavy gases will tend to settle in low lying