Air Monitor MASS-tron II/CEM, Инструкция по установке, эксплуатации и обслуживанию

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MASS-tron II/CEM
Air Monitor Corporation
116-004-94.P65 (8-31-10)
MASS-tron II/CEM
- IO&M Manual
35
User can select method of AUTO-cal activation (Internal and External or External Only), and set the following values:
Reference Value Selection . Allows for the selection of the AUTO-cal span report level in percent full scale (% FS).
Start Report Delay Selection . Allows for the selection of the duration of the Start Report Delay phase of the AUTO-
cal cycle. This period of time is adjustable from 20 to 300 seconds and during this time, Output #1 and display will be
held at last value prior to AUTO-cal initiation. This duration includes the 10 seconds for zero error measurement (T
0
to
T
1
, Figure 5.3) and 10 seconds for span error measurement (T
1
to T
2
, Figure 5.3).
Zero Report Duration Selection . Allows for the selection of the duration of the Zero Report phase of the AUTO-cal
cycle. This period of time is adjustable from 0 to 300 seconds and during this time, Output #1 will represent the value
of zero error (if any). Display will remain frozen with last value prior to AUTO-cal initiation. Also during this period,
AUTO-cal Relay will be energized. This is the time between T
3
and T
4
in Figure 5.3.
Between Report Duration Selection . Allows for the selection of the duration of the In Between Report phase of the
AUTO-cal cycle. This period of time is adjustable from 0 to 300 seconds and during this time, Output #1 will drop to its
minimum value. Display will remain frozen, and AUTO-cal relay will de-energize. This is the time between T
4
and T
5
in
Figure 5.3.
Span Report Duration Selection . Allows for the selection of the duration of the Span Report phase of the AUTO-cal
cycle. This period of time is adjustable from 0 to 300 seconds and during this time, Output #1 will represent transmitter
output with the reference value (% FS) selected (see above) as an input pressure. Display will remain frozen, and
AUTO-cal relay will energize. This is the time between T
5
and T
6
in Figure 5.3.
At the end of the AUTO-cal cycle (T
6
), Output #1 and display will return to normal process monitoring, and AUTO-cal
relay will de-energize.
Note: If Xmit D.P. and Report is selected for Output #4, output will be identical to Output #1 during the AUTO-cal cycle.
Figure 5.3
5.12 – AUTO-cal CONFIGURATION
SECTION 5 – OPERATION