- Ex protection class II 2G Ex px IIC T4 (ex zone 1)
- Complies with IMO resolution MEPC.107(49)
- Non-contact flow cell avoids window soiling
- Low influence of suspended solids due to fluorescence principle
- Easy adjustment with secondary standard
- Alarm contact 15 ppm
The OilGuard works on the fluorescence principle. The design uses a free-fall measuring system that eliminates contact between the sample and the flow cell. Adoptions to various types of oil are carried out by means of calibration curves, a control glass makes it easy to check or recalibrate the instrument. A pressurized-enclosure version is offered for areas requiring explosion protection and the version Ex M complies with the IMO standard MEPC.107(49).
Measuring principle | Fluorescence measurement |
Resolution | ±0.5 ppm |
Reaction time | max. 2 s (step response → limit switch) |
Enclosure | Stainless steel (DIN 1.4301 / AISI?? 304) |
Protection class | Ex II 2G Ex px IIC T4 (zone 1) |
Protection | IP65 |
Flow cell material | PVDF |
Sample flow rate | 5 .. 7 l/min |
Calibration | according to IMO resolution MEPC.107(49) |
Supply voltage | 230 V; 50/60 Hz |
Power input | 150 VA |
Dimensions | 680 x 536 x 312 mm |
Weight | about 37 kg |
Sample temperature | max. 95 °C |
Sample pressure | Pressureless |
Interfaces | Profibus DP (optional) |
Purge air | 6 l/min |
Ambient environment | -20 .. + 40 °C (optional max. +50 °C) |
Maximum service altitude | 3,000 m above sea level |
Analog outputs | 0/4..20 mA (max. 600Ω/max. 24V) |
Warm-up time | min. 2 h |
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