for Ultra-Filter™ DF 0035-1100 Econometer: Basic differential pressure monitor indicating the need to change the filter element. Economizer: Microprocessor monitoring and control indicating the most economical time to change the filter element. Econometer/Economizer Economizer installation Donaldson Ultra-FilterTM DF filters are ideal for filtration of compressed air and other gases in a wide range of applications. The “total filter” design concept behind these filters incorporates the following characteristics: • High performance • Ease of use • High efficiency • Flexibility • Compact size • Safety Additional energy cost savings can be achieve with the Ultra-Filter through the use of our Economizer microprocessor-controlled differential pressure gauge. While continuously monitoring differential pressure, the integrated microprocessor calculates the cost of element change-out relative increasing energy costs from rising pressure drop, and signals the most economic point at which to replace the filter element. AirCel™ ™ Economizer Econometer Savings by using the Economizer Operating signals can be remotely-monitored and, alternatively, the differential pressure signal can be transmitted via a standard analog interface (4-20 mA). Energy Cost Savings Through Reduction of Differential Pressure $0 $500 $1,000 $1,500 $2,000 $2,500 50 100 150 200 250 300 350 400 450 500 550 600 650 Flow Rate in scfm Annual Energy Cost Savings 1.5 psi less dp 3.0 psi less dp 4.5 psi less dp Example: 600 scfm, 3.0 psi less pressure loss, $1,452 savings per year.

Econometer/Economizer for Ultra-Filter™ DF Interfaces-Economizer +24V 1 4.20 mA 2 3 Output 4.20 mA Output for data transmission. Analog output 4-20 mA, maximum output resistance 500 Ù. +24V 1 Alarm 2 3 Alarm Output Alarm output for remote control, maximum current 0.5 A. The selection of the outputs (alarm contact or output 4-20 mA) is done via software by using the mode button and the display of the Economizer. qÉä UMMKRQPKPSPQ=Erp^F qÉä UMMKPQPKPSPV=EïáíÜáå=jÉñáÅçF c~ñ TTMKQQUKPURQ ÅçãéêÉëëÉÇ~áê]ã~áäKÇçå~äÇëçåKÅçã ïïïKÇçå~äÇëçåKÅçã açå~äÇëçå=`çãé~åóI=fåÅK `çãéêÉëëÉÇ=^áê=C=d~ë mKlK=_çñ=NOVV jáååÉ~éçäáëI=jk...