Metek 920, Руководство оператора с основными требованиями по охране здоровья и безопасности

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4-16 | Model 920 Multi-Gas Analyzer
F1 5 PmtBal ** A secondary PMT control signal (V) which adjusts the PMT gain to equalize the PMT sig -
nals when the filters with the lowest and highest transmittances are in the light path. Normal
values after a successful Auto-Setup are from 4.0–7.0 VDC.
F1 6 SigMax ** The signal from the PMT with the highest gain is set to SigMax when each filter is in
the light path while the Auto-Setup is in progress. SigMax should be 8.0–9.0 V (check
EEPROM Data Sheets for actual value).
F1 7 Kf z The units conversion constant for calculation of component mass flow (Mass/Energy),
where ‘ z ’ = 1..7.
1 = Kf1 5 = Kf5
2 = Kf2 6 = Kf6
3 = Kf3 7 = Kf7
4 = Kf4
F1 8 Ke
z
The units conversion constant for calculation of component mass flow (Mass/Amount),
where ‘
z
’ = 1..7.
1 = Ke1 5 = Ke5
2 = Ke2 6 = Ke6
3 = Ke3 7 = Ke7
4 = Ke4
F1 9 Units Units of measurement used for displaying concentrations, temperatures, and pressures.
The value is the sum of five bits:
Bit 0
Value Definition
1 0 = Metric Units
1 = Imperial Units
Bits 2,1
Value Definition
2,4* 0 = Normal concentration result (PPM).
2 = Normal concentration result (%).
4 = Finer (Low) concentration result (PPM).
6 = Coarse (High) concentration result (%).
*Sum of Bits 1 and 2 decimal value
Bit 3
Value Definition
8 0 = Display 4 items.
8 = Display 3 items.
Bit 4
Value Definition
16 0 = Remote Auto-CAL
16 = Remote Backpurge/Zero Flow
For example, if the analyzer is configured for Metric units, Normal concentration result in
PPM, Display 3 items, Remote Auto-CAL, the result would be:
Bit 0 + Bits 2,1 + Bit 3 + Bit 4 [0 + 0 + 8 + 0 = 8].
The unit for input and output parameters (Metric or Imperial) is set at the factory, and
should not be changed (i.e., do not change from a Metric unit to an Imperial unit). If a
change is required, consult with AMETEK.
You can, however, change the concentration units freely back and forth between PPM and
mole percent (e.g., from Units = 0 to Units = 2, or from Units = 1 to Units = 3, or vice versa).