Filter
Top Products
172-082010_400 I Series Software Page 22 of 35
item 6: units conversion factor:
item 7: units symb:
item 8: volume factor:
item 9: gas corr factor:
item 10: 2nd order gas factor:
item 11: 4th order gas factor:
item 12: comment:
item 13: cal date:
item 14: span correction factor:
item 15: volumetric unit:
item 14: Unknown1:
item 14: unknown2:
item 19: ref temp:
2.5. Gas list by item number
item 1 :gas instance: (read only)
read G1(cr) or *[aa]G1(cr)
Sample reply: 0(cr)>
This is the gas record number and the value that has been set using the sensor “s 6”
command to activate this particular record. This can be from 0 – 9.
item 2:FS flow:
read G2(cr) or *[aa]G2(cr)
Sample reply: 400.00(cr)>
write G2=500(cr) or *[aa]G2=500(cr)
This is the full scale flow rate for the instrument in the engineering units listed by the
G7 command. Other gas records may be present in the same instrument with differing
full scale values.
item 3: gas z factor:
read G3(cr) or *[aa]G3(cr)
Sample reply: 1.00(cr)>
write G3=1.1(cr) or *[aa]G3=1.1(cr)
This is a value that is used to correct for the differing specific gravity dependent sensor
sensitivities for different gases. This will be 1.00 for Air or Nitrogen but it will vary
when the flow instrument is calibrated for gases with densities that are significantly
different than air. This value will be listed for each gas in the gas conversion factor
table for this instrument.
item 4: gas symbol:
read G4(cr) or *[aa]G4(cr)
Sample reply: N2(cr)>
write G4=C3H8(cr) or *[aa]G3= C3H8(cr)