FCS 248 Photometer Calibration System

Reference aerosol generation and comparison system for calibrating up to three aerosol photometers against a reference instrument using controlled DEHS aerosol.

Aerosol flow

1,200–6,000 L/h

Concentration

Up to 1 g/m³

DUT ports

Up to 3

Reference port

Photometer calibration Three DUT ports DEHS reference aerosol Controlled comparison

VDI 3491-2

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Model Overview

Model	Group	Positioning	Core fit
FCS 248	Photometer calibration aerosol system	Controlled DEHS aerosol generation and distribution system for comparison of up to three photometers with a reference instrument	Aerosol-photometer calibration, service verification and multi-instrument comparison

Key Features

Parallel photometer comparison

Provides three DUT connections and a separate reference-instrument port.

Controlled DEHS concentration

Generates concentrations up to 1 g/m³ for calibration and response verification.

Wide calibration flow

Supports 1,200–6,000 L/h through the comparison system.

Integrated reference workflow

Maintains a defined aerosol path for traceable instrument comparison and service procedures.

Technical Specifications

Parameter	Unit	Value / Description
AEROSOL GENERATION
Aerosol substance	—	DEHS
Aerosol volumetric flow rate	L/h	1,200–6,000
Maximum aerosol concentration	g/m³	1
System pressure	bar	Max. 6
Liquid filling volume	mL	200–500
INSTRUMENT CONNECTIONS
DUT connections	—	3
Reference connection	—	1
Power supply	—	24 V DC
PHYSICAL
Dimensions W × H × D	mm	300 × 550 × 250
Weight	kg	15

Values shown are manufacturer specifications for model selection. Confirm the final configuration, accessories, utilities and calibration scope before ordering.