Oldham 700 TP Series, Instruction Manual

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OLCT 700/710 TP
OLCT 700/710 TP Instruction Manual Rev. C.1 Page 5 of 45
2. Installation
2.1 ATEX Operational Guidelines for Safe Use
OLCT 700/710 conforms to the requirements of European Directive ATEX 94/9/CE relating to explosive
Gas atmospheres.
The information given in the following sections should be respected and taken into account by the manager
of the site where the equipment is installed. As far as the aim of improving the health and safety of workers
who are exposed to the risks of explosive atmospheres is concerned, refer to European Directive ATEX
1999/92/CE.
1. Install detector only in areas with classifications matching with those described on the ATEX
approval label. Follow all warnings listed on the label.
Figure 5: ATEX Approval Label
2. Cable glands shall be flameproof certified («Ex d») for use in explosive atmospheres. Ingress
Protection will be greater or equal to IP66. Cable glands will be mounted according to IEC/EN
60079-14 standard, edition in force, and to additional requirements from local standards. They
shall be of M20x1.5 and the engagement shall be 5 threads at least. Cables used shall have an
operating temperature range equal or greater than 80 °C.
3. The threaded joints may be lubricated to maintain flameproof protection. Only non-hardening
lubricants or non-corrosive agents having no volatile solvents may be used.
4. Verify a good ground connection between the junction box and earth ground.
5. Ensure the Housing Bottom is threaded tightly to the Intelligent Transmitter Module. The locking
setscrew (M3.5 x 0.6 6g6h Stainless Steel Allen set screw cup point with yield strength of greater
than 40,000 PSI, typical 80,000 PSI) should then be tightened down to keep the Housing Bottom
from being inadvertently removed or from becoming loose under vibration. The locking setscrew
ensures that Housing Bottom is only removable by authorized personnel with the use of special
tools. A M1.5 Allen Wrench is required. If screw requires replacement, only an identical screw
may be used.
6. Removal of the Housing Bottom violates the Ex d protection method and hence power must be
removed from the detector prior its safe removal.
7. Proper precautions should be taken during installation and maintenance to avoid the build-up of
static charge on the plastic components of the detector. These include the splashguard and
splashguard adapter.
8. When used in ATEX zone, OLCT 700 shall be attached to increased safety certified junction box
only.