Elster GmbH
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EnCal 3000 - Hardware Manual
22/02/2018
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Hardware
2 parallel isothermal GC modules with narrow-bore capillary column technology
in combination with MEMS based analytical components
Analysis Output
Full composition of any natural gas up to C
6+
(standard) or C
9+
(optional)
Heating Value, Density, Wobbe Index
Component Range
for natural gas for biogas
N
2
: 0.005 – 20 % N
2
: 0.005 – 15%
CH
4
: 55 – 100 % CH
4
: 60 – 100%
CO
2
: 0.001 – 20 % CO
2
: 0.001 – 10%
C
2
: 0.001 – 14 % C
2
: 0.001 – 14 %
C
3
: 0.001 – 6 % C
3
: 0.001 – 6 %
C
4
: 0.001 – 3 % C
4
: 0.005 – 3 %
Neo-C5
: 0.005 – 0.25 % H
2
: 0.001 – 5 %
C
5
: 0.001 – 0.25 % O
2
: 0.005 – 4%
C
6
: 0.001 – 0.1 % H
2
S : 0.0002 – 1%
C
7
: 0.001 – 0.05 % COS : 0.0001 – 1%
C
8
: 0.001 – 0.05%
C
9+
: 0.001 – 0.05 %
Concentrations outside this scope might be possible, but verification with Elster-
Instromet is needed.
Performance
Uncertainty < 0.1 % for all calculated properties
Repeatability < 0.005 % (RSD) for all calculated properties
Detection limit for C
5
: 1 ppm; Detection limit for C
9
: 2 ppm
Analysis time 3 minutes for C
6+
analysis, 5 minutes for biogas or C
9
analysis
Temperature range
for devices with ATEX/IECEx-Approval
0 °C to 60 °C (32 to 140 °F), extendable to -40 °C to 60 °C (-40 to 140 °F)
for devices with FM-Approval:
0 °C to 55 °C (32 to 130 °F), extendable to -40 °C to 55 °C (-40 to 130 °F)
Analytical
