VISGUARD 2 EXTRACTIVE

Visibility Monitor

The VisGuard measures the scattered light intensity of a sample drawn into the instrument. Filtered purge air is fed through the flow cell, thus enveloping the sample in a protective shroud of clean air. This effectively keeps the optics clean. Installations are either in the tunnel cavity/niches (in-situ) respectively using extractive sampling away from the cavity. An optional sample heater eliminates the influence of any mist effects.

• Continuous monitoring of oil mist concentration using scattered light principle
• Easy to service, high sensitivity, stability and accuracy
• A special sample flow concept entirely eliminates the danger of flow cell contamination

SPECIFICATION

Measuring principle

30° scattered light

Wavelength

880 nm

Nominal range

0 .. 1'000 PLA (Polystyrol-Latex-Aerosols)
0 .. 30 E/m

Resolution

±0.001 mE/m

Reaction time

2 s

Enclosure

Stainless steel 1.4435 / 1.4571

Protection

IP66 (only with mounted protection caps)

Ambient temperature

-30 °C .. +55 °C

Humidity

0 .. 100 % rel. Humidity

Supply voltage

24 VDC

Power input

1 W
Option: heater 10 W

Dimensions

approx. Ø 209 x 254 mm

Weight

5 kg

Connection box SIPORT 2:

  Power supply: 100 .. 240 VAC; 47 .. 63 Hz

  Power input: max. 25 W / 45 VA

  Protection: IP66

  Enclosure: Polyester, fibre glass reinforced

  Weight: 1.3 kg

  Dimensions: approx. 220 x 155 x 91 mm

Modules for SIPORT 2:

  Interface Module Profibus DP

  Interface Module Modbus RTU

  Interface Module PowerRel:
- 2 x 0/4 .. 20 mA, max. 500 Ω, galvanic separated
- 3 x Semiconductor relays max. 30 V, max. 0.12 A, Ron max. 25 Ω

Hand-held control unit

SICON-C for SIPORT 2:
Graphics TFT with touch operation

Control Units

SICON
SICON M