testo Ex-Pt 720 Bedienungsanleitung Seite 28

2. - safety instructions
When using the probes, ensure that mechanical damage or friction in application is eliminated; pay
particular attention to flow conditions and the interior of containers.
- If applicable, the necessary measurems for the avoidance of static charging must be taken.
- When using an earth connection, observe the stipulations of EN 60079-14.
- Before taking the probes into the Ex-area, they must be earthed.
Special conditions for use in Zone 0 areas
- Recording temperature with the Ex-Pt 720 inside Zone 0 is allowed only under the following conditions
- A stainless steel probe Type 0628 2232 or 0628 2432 is used.
- Ensure the earth connection is secure. Connect the earth terminal is such a way as to prevent
unintentional disconnection. The earth connection must be made outside Zone 0 and before taking the
probe into Zone 0.
- For information on correct connection of an earth, consult the relevant regulations
- The Ex-Pt 720 itself may not be taken into Zone 0.
- It must be ensured that the instrument is not immersed into Zone 0 accidentally. In order to guarantee
this, the carrying strap must be additionally fixed, e. g. to the user's belt or belt rung. The length of the
carrying strap is such that the Ex-Pt 720 still has a distance of 50 cm to Zone 0 when hanging freely on
the strap.
- If the instrument is being used in the optionally available leather case (Order no. 0516 0133), the
carrying strap must still be fixed to the body acording to the regulations.
info@Testo-Direct.com
28
Testo-Direct
www.
1.888.475.5235
.com