Lumasense-technologies ISR 12-LO/GS Manual de usuario descargar pdf (Pagina 25)

IMPAC pyrometers ISR 12-LO/GS

10 Transport, packaging, storage

With faulty shipping the instrument can be damaged or destroyed. To transport or store the instrument,

please use the original box or a box padded with sufficient shock-absorbing material. For storage in humid

areas or shipment overseas, the device should be placed in welded foil (ideally along with silica gel) to pro-

tect it from humidity.

The pyrometer is designed for a storage temperature of -20 to 70°C with non-condensing conditions. A stor-

ing out of these conditions can damage or malfunction the pyrometer.

11 Maintenance

11.1 Safety

Attention duri

ng pyrometer services:

Should the pyrometer be integrated in a running machine process the machine has to be switched off and

secured against restart before servicing the pyrometer.

11.2 Service

The pyromet

er does not have any parts which require regular service, only the lens has to be kept clean.

The lens can be cleaned with a soft cloth in combination with alcohol (do not use acid solutions or dilution).

Also standard cloths for cleaning glasses or photo objectives can be used.

11.3 Changing of optics

The pyrom

eters are equipped ex works with a optical head with a spot in shape of a line. The optical head

can be changed against another if it is used only in ratio mode (2-color mode). Replacement can be neces-

sary if the lens is scratched or the pyrometer will be used for other measuring distances.

12 Trouble shooting

Before sending the pyrometer for repair, try to find the error and to solve the problem with the help of the

following list.

Temperature indication too low

• Emissivity slope set too high

⇒ Set lower correct emissivity slope corresponding to the material (see 8.2)

Tempera

ture indication too high

• Emissivity slope set too low

⇒ Set lower correct emissivity slope corresponding to the material (see 8.2)

•

The measurement is influenced by reflections of hot machine parts

⇒ Use mechanical construction to avoid the influence of the interfering radiation (sighting tube)

No temperature indication at the end of the pouring stream

• Pouring stream is not in the spot of the pyrometer

⇒ New correct alignment of the optical head (see 6)

•

Optical head contaminated or scratched

⇒ Signal strength too low (see 5.3, 9.8), clea

n or change optical head. Recommendation: use of air

purge (see 5.4)

•

Pouring stream is much smaller than spot size, thus the signal strength is too low (see 5.3, 9.8)

⇒ Cho

ose shorter measuring distance

• No temperature indication during the use of the pyrometer, although the air purge unit is used.

⇒ Probably compressed air is not clean or air failed. Clean optics and use clean and oil free air.

• HF-interferences

⇒ Correct the connection of the cable shield (see 4)

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