ABB EasyLine EL3020 Datasheet

4 EasyLine EL3000 Series Data Sheet 10/24-4.10 EN Rev. 9
Infrared photometer Uras26
Measurement principle
Non-dispersive infrared absorption
Photometer with 1 or 2 beam paths (gas paths) to measure up to
4 components
Sample components and measurement ranges
Sample components and smallest measurement ranges
Sample component Smallest measurement range
CO 0–100 ppm
CO
2
0–100 ppm
NO 0–150 ppm
SO
2
0–100 ppm
N
2
O 0–100 ppm
CH
4
0–100 ppm
Measurement range quantity
2 measurement ranges
Measurement range limits
Smallest measurement range Largest measurement range
0–100 ppm (NO: 0–150 ppm) 0–500 ppm (NO: 0–750 ppm)
0–200 ppm 0–1000 ppm
0–600 ppm 0–3000 ppm
0–2000 ppm 0–10000 ppm
0–0.6 vol.-% 0–3 vol.-%
0–2 vol.-% 0–10 vol.-%
0–6 vol.-% 0–30 vol.-%
0–20 vol.-% 0–100 vol.-%
An individual measurement range within the limits shown in
the table can be factory-set on special order.
Measurement ranges are freely adjustable within the limits
shown in the table.
Measurement ranges should not be set within ignition limits.
Version for use in air separation units
Only for binary gas mixtures consisting of the sample
component in Ar, N
2
or O
2
Sample component Smallest / Largest measurement range
CO 0–10 ppm / 0–50 ppm
CO
2
0–5 ppm / 0–25 ppm
N
2
O 0–10 ppm / 0–50 ppm
CH
4
0–20 ppm / 0–100 ppm
Other than the data valid for the standard version the follow-
ing data apply for this version (in % of the smallest measure-
ment range shown in the table):
Zero drift: ≤ 1.5 % per day
Sensitivity drift: ≤ 1 % per week
Output fluctuation (2 σ): ≤ 0.5 % at T90 = 15 s
Temperature effect: ≤ 2 % per 10 °C
Stability
The following data apply only if all influence factors (e.g. flow
rate, temperature, atmospheric pressure) are constant. They
relate to the smallest measurement range.
Linearity deviation
≤ 1 % of span
Repeatability
≤ 0.5 % of span
Zero drift
≤ 1 % of span per week
Sensitivity drift
≤ 1 % of measured value per week
Output fluctuation (2 σ)
≤ 0.2 % of span at electronic T90 time (static/dynamic)
= 5 / 0 sec
Detection limit (4 σ)
≤ 0.4 % of span at electronic T90 time (static/dynamic)
= 5 / 0 sec
Influence effects
Flow effect
Flow rate in the 20–100 l/h range: within detection limits
Associated gas effect/ cross sensitivity
The knowledge of the sample gas composition is necessary
for the analyzer configuration.
Selectivity measures to reduce associated gas effect
(optional): Incorporation of interference filters or filter cells,
internal electronic cross-sensitivity correction for one sample
component by other sample components measured with the
gas analyzer.
Temperature effect
Ambient temperature in permissible range
– At zero-point: ≤ 2 % of span per 10 °C
– On sensitivity without thermostat:
≤ 3 % of measured value per 10 °C
– On sensitivity with thermostat (optional):
≤ 2 % of measured value per 10 °C
Thermostat temperature = 55 °C
Air pressure effect
– At zero-point: No effect
– On sensitivity with pressure correction by means of integral
pressure sensor: ≤ 0.2 % of measured value per 1 %
barometric pressure change
The pressure sensor is located in the sample gas path if hoses
are used as the internal gas lines.
If stainless-steel tubing is used for internal gas lines the
pressure sensor is routed to the outside via a hose.
Pressure sensor working range: p
abs
= 600–1250 hPa
Power supply effect
Voltage and frequency in the permissible range: No effect

ABB EasyLine EL3020 Specifications

General

Brand	ABB
Model	EasyLine EL3020
Category	Measuring Instruments
Language	English