Keep this manual easily accessible for all users.
Please respect all national rules for installation, operation and service of gas meters.
1 Character ist ics
Delta meters are designed to measure gases of the 1st, 2nd and 3rd gas families as specified in EN 437
as well as various filtered, and non-corrosive gases.
General characteristics: See Annex 1
2 Pack incı
The meter, depending on the size or version is delivered:
- In a cardboard box, protected by polyethylene wedges
- On a wood pallet, protected by a cardboard cover.
The packing shall contain the filling lubricant, plugs for the installed transmitters and this instruction
manual.
2.1 Storage
If the meter is not going to be used immediately, it should be stored under cover in a clean, dry
environment, in the horizontal position.
The caps fitted in the inlet and outlet pipe must stay in place until installation.
2.2 Handling
The meter is delivered without lubricant in covers. Before shipping or handling, ensure that the
lubricant has been thoroughly drained from the front and the rear covers to prevent spillage into the
measuring chamber. Meters should be lifted only with belt around the main body or with the
eyelets.
3 Insta((at ion
3.1 General
Due to the volumetric principle of the Delta meter, its metrology is not influenced by the installation
conditions. Nevertheless the respect of the following rules will insure the best use of your Delta
meter:
Recommended installation: See Annex 2
- Check visually that the meter has not been damaged during transport.
- No welding is allowed with meter installed.
- The meter should be installed with the impellers horizontal (allowed deviation: +/- 0,5° for the
DN 40, +/- 5° for the others models).
- Never install a meter at a low point in the piping where the meter could be subject to the
accumulation of water or particles.
- For threaded joints, the use of Teflon tape is not recommended to avoid introducing tape in the
chamber.
- The meter should be installed without stress in the piping. The flanges must be correctly lined
up. The tightening torque of the bolts must not exceed 100Nm for M16, 150Nm for M20.
- Please tighten bolts in opposite pairs
File : DELTA_Instruction_manual_2008-01-21_T5E başvurusu i çin.doc 5eite 2 von 52