Emerson Process Management ETC01035 Depending on which system is used, diffe- rent parameters apply:

ATEX Instruction Manual

Emerson Process Management Manufacturing GmbH & Co. OHG 1 - 5

Depending on which system is used, diffe-rent parameters apply:

Application Mode of Operation

Single Enclosure

(volume approx. 56 l)

Dual Enclosure (volume

approx. 112 l)

Zone 1 Prepurge Pha se

for measuring Duration: 10 min 14 min

flamm a ble ga ses Purge gas consumpt i on: 1,75 Nm³/h 1,92 Nm³/h

maximum overpressure: 95 mbar 95 mbar

Measuring Mode

Internal overpressure: 90mbar 90 mbar

Flow rate (leakage rate): <= 3 l / m i n <= 4,5 l/ min

Zone 1 Prepurge Pha se

for measuring Duration: 4 m i n 6 min

non-flammable ga ses Purge gas consumpt i on: 6,8 Nm³/h 9,2 Nm³/h

maximum overpressure: 25 mbar 25 mbar

Measuring Mode

Internal overpressure: 14 mbar 14 mbar

Flow rate (leakage rate): <= 3 l / m i n <= 4,5 l/ min

Application Mode of Operation Single Enclosure

(volume approx. 56 l)

Dual Enclosure (volume

approx. 112 l)

Zone 2 Prepurge Pha se

for mea suri n g Duration: 5 m in 17 min

non-flammable ga ses Purge gas consumpt i on: 8 Nm³/h 7 Nm³/h

maximum overpressure: 25 m bar 25 mbar

Measuring Mode

Internal overpressure: 1 mbar 1 mbar

Flow rate (leakage rate): <= 22Nm³/h <= 22 Nm³/h

Minimum overpressure in all enclosures:•1 mbar against external atmosphere and•50 Pa against containment system when measuring flammable gases