Hitachi NEXT Series Instruction Manual page 53

Proper Pressure/Temperature Indications on LCD
LCD Indication
Operating State Working Pressure
100 psi (0.69 MPa)
Discharge pressure
125 psi (0.86 MPa)
Interstage pressure
100 psi (0.69 MPa)
Oil pressure
125 psi (0.86 MPa)
LCD Indication
Operating State Working Pressure
100 psi (0.69 MPa)
1st-Stage Discharge
Air Temperature
125 psi (0.86 MPa)
100 psi (0.69 MPa)
2nd-Stage Discharge
Air Temperature
125 psi (0.86 MPa)
Oil temperature
2nd-Stage Suction
Air Temperature
Note) ＊ The oil pressure may exceed 26 psi (0.18 MPa) temporarily when starting. The oil pressure may exceed 26 psi (0.18 MPa) temporarily
when PQ wide mode ON for Vtype. These are normal.
6.1.4 Stopping
②
DIS. PRESS: ０ｐｓｉ
INTSTG P: ０ ｐｓｉ
OIL PRES: ０ ｐｓｉ
CLT PRES: ＊. ＊＊ｐｓｉ
③
6. STARTUP OPERATION [Startup Operation of the Air Compressor]
Unit
- Loading
100 (0.69) or less 85 - 100 (0.59 - 0.69)
psi (MPa)
125 (0.86) or less 110-125 (0.76 -0.86)
psi (MPa) 25 - 38 (0.17 -0.26)
psi (MPa) ＊ 19 - 26 (0.13 - 0.18)
Unit
- Air-cooled
426 (219) or less
°F (°C)
426 (219) or less
435 (224) or less
°F (°C)
489 (254) or less
°F (°C) 153 (67) or less
°F (°C) 153 (67) or less
運転管理 運転状況
RUNNING CONTROL RUNNING MODE
遠 方
警 報
REMOTE 電 源
POWER
ALARM
負 荷
LOAD
機 能 リセット
起動待ち
RESET 故 障 AUTO START
FUNC
SHUTDOWN
表示切替／
遠 方 運 転 停 止
ワイドモード
REMOTE SELECT/WIDE START STOP
記 憶
STR 1 2
①
UNLOAD STOP
④
[Rear View]
Water-Cooled
DSP-45/55/75ATN
DSP-45/55/75WTN
Unloading
-11 - 0 (0.08-0)
DSP-45/55/75ATN
DSP-45/55/75WTN
Water-cooled
408 (209)or less
408 (209) or less
417 (214) or less
471 (244) or less
147 (64) or less
147 (64) or less
① Press the UNLOAD STOP button to stop the air
compressor. Operation stops when the air end and the
air piping have dried for 5 minutes. To stop the
compressor immediately without unloading, press the
STOP button.
② Check the LCD for pressures, and verify that:
Oil pressure, interstage air pressure, 0 psi (0 MPa) or
1 psi (0.01 MPa) depending on your operating
conditions).
③ Check the condensate drain discharge from the
control line filter by checking the sight glass on the
control line filter. (Fixed speed type)
④ Close the stop valve.
⑤ Open the water drain valve. Do not fail to drain the
cooling water specifically winter season because the
remaining water may be frozen inside and as a result
the casing and/or coolers may be burst.
DSP-55/75VATN
DSP-55/75VWTN
Loading Unloading
103 (0.71) or less
128 (0.88) or less
25 - 42 (0.17 -0.29) 3 - 15 (0.02 -0.1)
＊ 13 - 26 (0.09 - 0.18)
(op. freq.: 110 Hz or more)
7 - 23 (0.05 - 0.16)
(op. freq.: 110 Hz or less)
DSP-55/75VATN
DSP-55/75VWTN
Air-cooled Water-cooled
426 (219) or less 408 (209 or less)
426 (219) or less 408 (209) or less
435 (224) or less 417 (214) or less
489 (254) or less 471 (244) or less
153 (67) or less 147 (64) or less
153 (67) or less 147 (64) or less
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