The Model 3020T is a microprocessor-based instrument for detecting oxygen at the parts-per-million (ppm) level in a variety of gases. This instrument serves as the explosion-proof, bulkhead-mount version of the 3000 Series. Simple menu choices, externally accessible command switches, and dual LCD and LED displays make setup and operation clear and quick.
Three user-configurable ranges are standard, with an excellent linearity precluding the need to recalibrate when changing ranges. Two fully programmable concentration alarms satisfy nearly any requirement. All features offer a sophistication that assures years of service.
Two standard 0-1 VDC and two 4-20 mADC isolated outputs provide both concentration and range identification. A bi- directional RS-232 serial interface is incorporated to relay information to a host computer for remote monitoring of critical functions.
All controls and displays are available from outside the housing. The instrument has two simple operator controls. A digital meter, an alphanumeric display, and a sample flow meter give the operator constant feedback.
C Integrally mounted cal/zero valves
V Plumbed for vacuum service
F Flame arrestors for Class 1, Div 1, Group C/D service
G Flame arrestors for Class 1, Div 1, Group C/D service with cal valves
H Flame arrestors for Group B (hydrogen) service
I Flame arrestors for hydrogen service with cal valves
S Stainless steel cell block