How To Use The Digital Monitor - Hitachi NEXT Series Instruction Manual

3.4 How to Use the Digital Monitor

3.4.1 How to Display Operation Status, Shutdown History, and Status of Various Settings
All display contents of the digital monitor are linked with the LCD monitor. All of the following display contents can be
confirmed by the LCD monitor.
Use the following operations to display the contents of other operation/setting status on the LCD monitor and readily
confirm operation status and setting status by the digital monitor.
(1) How to Display the Operation Status
SELECT/WIDE
1
Press once to go to
the next item.
2
Press once to go to
the previous item.
RESET
Return to discharge
pressure display
To shutdown history display
IMPORTANT
1. When other than P (Discharge pressure is
displayed), it automatically returns to P in 3 minutes.
2. Load ratio is a reference-calculated value.
3. OPERATION PROCEDURE [How to Use the Digital Monitor]
P: Discharge pressure (psi)
SELECT/WIDE
Press
1
Blinks when operation time is added.
Total running hour (×10)
b: Interstage pressure (psi)
C: 1st-stage air end outlet temp (゜
F)
(320゜ F)
L: Vtype: Not in use
Fixed speed type: Load ratio (%)
U: Load count (×10,000 times)
H: Vtype: Main motor operating frequency (Hz)
Fixed speed type: Not in use (display only)
d: Fan motor operating frequency (Hz)
Water-cooled type: Not in use (display only)
When the power is turned on, discharge pressure is displayed
on the screen of the digital monitor. Use the following
procedure to switch the digital monitor to other display.
① Press the SELECT/WIDE button. Operation time is
displayed on the screen.
② Press the SELECT/WIDE button. Interstage pressure is
displayed on the screen with "b."
③ Press the SELECT/WIDE button. 1st-stage air end outlet
temperature is displayed on the screen with "C."
④ Press the SELECT/WIDE button. Load rate is displayed on
the screen with "L."
⑤ Press the SELECT/WIDE button. Load count is displayed
on the screen in units of 10,000 times with "U."
Air-Cooled
⑥ Press the SELECT/WIDE button. Operation frequency of
the fan motor is displayed on the screen with "d."
To return to one item at a time, press the
return to discharge pressure, press the RESET button.
● If the alarm or shutdown light is blinking, the shutdown
code is displayed with "E0" (
"E0" indicates the contents of the latest shutdown.
● If the alarm or shutdown light is blinking, it indicates that
the alarm or shutdown has not been reset. Check E0.XX
and reset.
button. To
2
4.1).
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