INSTALLATION 3
19
OPTIMASS 3000
www.krohne.com10/2015 - 4001593002 - MA OPTIMASS 3000 R02 en
3.4.8 Purge ports
Purge ports
Purge portsPurge ports
Purge ports
• Meters ordered with purge port option, will be fitted with ¼" NPT female connections
• The NPT connections are sealed with NPT plugs and PTFE tape
Burst discs
Burst discsBurst discs
Burst discs
• If the operating pressure is higher than the design pressure of the secondary containment
you MUST order the burst disc option.
• The disc failure pressure is 20 barg at 20ºC / 290 psig at 68ºF.
• If process conditions change from the original order, you MUST contact the manufacturer for
advice regarding the suitability of the fitted disc.
• If the process product is hazardous, it is recommended that an exhaust tube is fitted to the
NPT male thread so that the discharge can be piped to a safe area.
• Make sure that the arrow on the burst disc is pointing away from the meter.
3.4.9 Flexible connections
Flexible connections can be used to connect the meter to the process pipework.
CAUTION!
DO NOT REMOVE THE NPT plugs!
The meter is factory sealed and filled with dry nitrogen gas. If you remove the plugs and allow
moisture to get into the meter it will cause damage. If you think that the measuring tube has
failed, depressurise the meter (when it is safe to do so) and remove the plugs. Purge the meter
case to remove the process product.
MA_OPTIMASS_3000_en_151014_4001593002_R02.book Page 19 Wednesday, October 14, 2015 1:20 PM
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