Yokogawa GD40 Gas Density Detector - Manual (Page 13)

<1. Specifications>
1-4
IM 11T3E1-01E
l Characteristics
GD402 specification list
Item Density kg/m 3 Density lb/ft 3 Specific Gravity Molecular Weight Concentration vol%
Range
0 - 6 (compensated)
0 - 60 (physical)
0 - 0.4 (compensated)
0 - 4 (physical)
0 - 5 0 - 140 0 - 100
Minimum Range 0.1 0.01 0.1 4
Concentration equivalent
to 100 kg/m 3
Response Time 90% approx. 5 sec approx. 5 sec approx. 5 sec approx. 5 sec approx. 5 sec
Linearity +/-1 % FS +/-1 % FS +/-1 % FS +/-1 % FS +/- 1
Repeatability
+/- 0.001
or +/-0.5%FS *
+/- 0.0001
or +/-0.5%FS*
+/- 0.001
or +/-0.5%FS*
+/- 0.02
or +/-0.5%FS*
+/- 0.5% or Concentration
equivalent to
+/-0.001kg/m 3 *
Long term stability +/- 0.003/month +/- 0.002/month +/- 0.003/month +/- 0.07/month
Concentration equivalent
to +/- 0.003 kg/m 3 /month
*: Whichever is greater
Density is the basic measurement, the other representations are derived from the Density data.
Item H
2
in Air vol% H
2
in CO
2
vol% Air in CO
2
vol% Caloric value MJ/m 3 British Thermal Unit KBTU/ft 3
Range 85 - 100 0 - 100 0 - 100 0 - 130 0 - 3.5
Minimum
Range
– – – Caloric value equivalent to
0.100 kg/m 3
Caloric value equivalent to
0.100 kg/m 3
Response
Time 90%
approx. 5 sec approx. 5 sec approx. 5 sec approx. 5 sec approx. 5 sec
Linearity +/- 1 +/- 1 +/- 1 +/- 1 % FS +/- 1 % FS
Repeatability +/- 0.5 +/- 0.5 +/- 0.5 +/- 0.5%FS or Caloric value
equivalent to 0.001kg/m 3 *
+/- 0.5%FS or Caloric value
equivalent to 0.001kg/m 3 *
Drift +/- 0.5/month +/- 0.5/month +/- 0.5/month Caloric value equivalent to
+/- 0.003kg/m 3 /month
Caloric value equivalent to
+/- 0.0025/month
Caloric Value and BTU are possible representations of the Density.
GD402 does not contain table information, only a single mathematical equation.
*: Whichever is greater