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Hitachi NEXT Series Instruction Manual page 25

Oil-free rotary screw air compressor
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5
Operation Data Display
Data can be recorded for a maximum of twelve (12)
times. The 13th recorded data is automatically deleted
and the 1st recorded data is added. The most recent
data is arranged at the top of the display. If a change to
these settings is desired, the sampled data before the
settings change will be left as is and the new recorded
data will be applied after the change.
Press the
or
button to move within the display.
1. and 2. : Indicates the MONTH / DAY HOUR: MINUTE.
P - Represents a pressure (psi) and indicates from left
to right: Discharge air pressure, Interstage
pressure, Oil pressure, * * *
C - Represents an amperage current (A)
T -  Represents a temperature (° F) and indicates from
left to right: 1st stage discharge air temperature,
2nd stage dischar ge air temperatur e, oil
temperature, * * *, 2nd stage suction temperature.
L - Represents a load ratio percentage (%)
Unavailable fields are filled with asterisks.
6
Load Data Display
This display shows the averaged load data per day. Data
can be recorded for a maximum of 6 days; the 7th day
of averaged load data is automatically deleted and the
1st or most recent averaged data is added. The most
recent data is arranged at the top of the display. Press
the
or
button to move within the display.
Data is averaged from start to stop every day. If 24h
operation is done, data is averaged at AM 0:00.
3. OPERATING PROCEDURE [How to Use the Liquid Crystal Display (LCD)]
7
Alarm History
This display shows a maximum of 6 alarms and
displays the following information as such: type of
alarm, the number of times, and the date and time. If
the same alarm occurs in a short period of time, the
older data is deleted and the more recent data is stored,
and alarm NOS. is updated. The most recent data is
arranged at the top of the display. Press the
button to move within the display.
① Indicates operating condition.
L: When loading, U: When unloading,
S: When Stopped
8
Shutdown History
This display shows a maximum of 6 shutdowns and
displays the following information as such: type of
shutdown, the number of times the air compressor has
shutdown, and the date and time of the shutdown. The
shutdown history display also shows the operation data
(pressure, temperature, current) sampled at the time of
shutdown.
To view the operation data sampled when the shutdown
occurred; in the shutdown history display, move to the
item number of the targeted shutdown to view. Press
the SET button to open the [DETAILS] display.
● How to clear the all alarm and shutdown histories.
Set the F041 on digital monitor "1". (
or
3.4.2).
23

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