OILGUARD 2 EX

Oil Trace Monitor for Mineral Oils for hazardous Areas

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.

• Well-proven UV-Fluorescence measuring principle
• True non-contact measurement in a free-fall stream
• Dual-beam optics for highest accuracy and stability

SPECIFICATION

Measuring principle

UV-Fluorescence

Nominal range

0 .. 100 FLU
0 .. 1'000 ppm oil (depending on the oil characteristics)

Scale ranges

8, freely configurable

Resolution

±0.5% (referred to quinine sulphate in water)

Reproducibility

±2% (referred to quinine sulphate in water)

Reaction time

< 2 s (step response => limit switch)

Installation

Online side stream

Enclosure

Stainless steel 316L / 1.4404

Protection class

Ex px IIC T4 Gb

Protection

IP66

Flow cell material

Closed flow cell: stainless steel 316L / 1.4435
Free-fall cell: stainless steel 316L / 1.4435 or PVDF

Sample flow rate

Closed flow cell: 0.5 .. 2 l/min
Free-fall cell: 5 .. 7 l/min

Sample temperature

Closed flow cell: max. 100 °C
Free-fall cell: max. 40 °C (VA), max. 95 °C (PVDF)

Sample pressure

Closed flow cell: max. 1 MPa (=10 bar)
Free-fall cell: pressure-less

Ambient temperature

-20 .. +50 °C

Humidity

0 .. 100% RH

Supply voltage

230 V; 50/60 Hz oder 100/115/130 V

Power input

max. 65 W

Dimensions

70 x 50 x 35 cm (w x h x d)

Weight

37 kg

Display

¼ VGA, 5.7“

Operation

Touchscreen

Inputs/outputs

1 x 0/4 .. 20 mA, galvanic separated
7 x digital outputs, freely configurable
5 x digital inputs, freely configurable

Interfaces

Ethernet, Modbus TCP, microSD-card
Optional: HART, Profibus DP, Modbus RTU