Wika 232.36 Manual do Utilizador descarregar pdf (Página 6)

Temperature Class of the

ambient atmosphere

(ignition temperature)

Maximum permissible medium temperature

(in the pressure system)

Model 212.20 Models 232

(dry gauges)

Models 233

(liquid filled gauges)

T 6 (> 85 °C) +70 °C +70 °C +70 °C

T 5 (> 100 °C) +80 °C +85 °C +85 °C

T 4 (> 135 °C) +80 °C +120 °C +100 °C

T 3 (> 200 °C)

+80 °C +185 °C +100 °C

T 2 (> 300 °C)

+80 °C +200 °C +100 °C

T 1 (> 455 °C) +80 °C +200 °C +100 °C

2064246 07/2009 GB/D/F

WIKA Operating instructions pressure gauges Model 2 with 831 per ATEX

Operating Temperature

Ambient: -25 … +60 °C (with inductive contacts in safety pattern version

Models 831.XX-SN up to -40 °C)

Attention: Footnote 1) under table 1 must be absolutely taken into account!

Medium: see table 1

Attention! In the case of gaseous substances, the temperature may increase

due to compression warming. In these cases it may be necessary to throttle

the rate of change of pressure or reduce the permissible temperature of the

pressure medium.

Table 1: Permissible medium temperature (only mechanical part)

1) The permissible uppper ambient temperature for the electrical components is determined by the

electrical connection values and the ignition temperature of the ambient gases, vapours and dusts.

Therefore the maximum permissible ambient temperatures specified in the EC-type examination

certificates for slot-type sensors and SN sensors must be observed as well. The lower of these

two values is to be considered the maximum permissible ambient temperature!

Installation

In order to ensure that with Model 23X pressure can be safely and reliably

vented through the case back, a distance of at least 25 mm must be left free

behind the case!

In order to avoid any additional heating, the instruments must not be

exposed to direct solar irradiation while in operation!

With filled versions the ventilating valve (pressure ranges ≤10 bar) at the top

of the case must be opened prior to commissioning!



3. Technical data and intended use

1 2 3 4 5 6 7 8 9 10 11 ... 51 52

Comentários a estes Manuais

Sem comentários

Wika 232.36 Manual do Utilizador Página 6

Comentários a estes Manuais

Manuais e produtos relacionados com Instrumentos de medida Wika 232.36