SIGRIST OilGuard 2 W, Instruction Manual

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Instrument overview Instruction Manual OilGuard 2 W
14809E/2 15
2.4 Technical data for the OilGuard 2 W
Fluorescence measure-
ment Values
Measuring principle Fluorescence measurement
Measuring scope 0 .. 50 µg/l (ppb) with 16 EPA-PAH calibration
Wavelength Excitation: 280 nm (EN 62471 Risk Group 3 – High Risk)
Detection: 300 – 400 nm
Radiation class LED device of Risk Group 3 according to EN 62471
Resolution 0.01 µg/l (ppb) with 16 EPA-PAH calibration
Detection limit < 0.1 µg/l (ppb) with 16 EPA-PAH calibration
Photometer Values
Reproducibility ± 2 % from measuring range with 16 EPA-PAH
Repeatability ± 0.5 % from measuring range with 16 EPA-PAH
Service voltage 18 – 30 VDC
Power consumption 8 W
Dimensions See detailed dimensional drawing
Weight 3.2 kg
Protection class IP54 (only electronics)
Maximum operating alti-
tude 2,000 m above sea level for instruments that are not operated
with low voltage (mains, relays)
Ambient temperature 0 .. 50 °C
Ambient humidity 0 .. 95% rel. humidity, non-condensing
Housing Plastic (ABS)
Outputs/inputs Outputs:

2 x 0/4 .. 20 mA, galvanically isolated up to max. 50 V rela-
tive to ground, max. 500 Ω burden

2 x relay contacts 250 V, 4 A
Inputs:

2 x 0/4 .. 20 mA, not galvanically isolated

1 x digital input (for external NO contact such as flow meter
with limit contacts)
Outputs/inputs
Optional I/O module Outputs:

2 x 0/4 .. 20 mA, galvanically isolated up to max. 50 V rela-
tive to ground, max. 500 Ω burden

4 x digital outputs up to max. 30 VDC, freely configurable
Inputs:

5 x digital inputs up to max. 30 VDC, freely configurable