Emerson Micro Motion 7812 Sicherheitshinweis Seite 2

GB Instructions specific to hazardous area installations
Model numbers covered: 7812****J**** ('*' indicates options in construction, function and materials.)
The following instructions apply to equipment covered by certificate number Nemko 03ATEX1206X:
1. The equipment may be used with flammable gases and vapours with apparatus groups IIA, IIB & IIC, and with
temperature classes T1, T2, T3, T4 & T5.
2. Installation of this equipment shall be carried out by suitably trained personnel, in accordance with the applicable
code of practice.
3. Inspection and maintenance of this equipment shall be carried out by suitably trained personnel, in accordance
with the applicable code of practice. Only approved spares supplied by the manufacturer or approved agent
should be used.
4. The apparatus electronics is only certified for use in ambient temperatures in the range of -40°C to +70°C. It
should not be used outside this range.
5. If the equipment is likely to come into contact with aggressive substances, it is the responsibility of the user to
take suitable precautions that prevent it from being adversely affected, thus ensuring that the type of protection is
not compromised.
Aggressive Substances:
Suitable Precautions:
6. The intrinsic safe outputs must not be connected together
7. Technical Data:
(a) Materials of construction:
Body: Stainless Steel 316, 304 type, or Hastelloy
Wetted parts: Stainless Steel 316, 304 type, or Hastelloy, or Ni-span, or Monel
(b) Coding: II 1 G,
EEx ia IIC T5 (-40°C Ta +70°C)
(c) Electrical:
Input parameters:
Terminal numbers
1,2,3,4 *
5,6,7,8 *
* The voltage, current and power values are the total available
(d) Pressure: Must not exceed the rating of the coupling/flange fitted.
8. Special conditions for safe use:
The metallic alloy used for the enclosure material may be at the accessible surface of this equipment; in the
event of rare accidents, ignition sources due to impact and friction sparks could occur. This shall be considered
when the 7812 is being installed in locations that specifically require group II, category 1G equipment.
2
- e.g. acidic liquids or gases that may attack metals or solvents that may affect
polymeric materials.
- e.g. regular checks as part of routine inspections or establishing from the
material's data sheet that it is resistant to specific chemicals.
Ui Ii Pi
V = mA W
28 93 0.65 0.033
15 150 0.5 0.050
to all four connections.
Ci Li
F mH
0.73
0.73
78125010/SI