Hitachi NEXT Series User Manual

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3. OPERATION PROCEDURE [How to Use the Digital Monitor]
1. Pressure setting when minimum air receiver tank is installed ( 5.4.5)
Vtype : Pressure differential between cut-out and cut-in shall be 7 psi (0.05 MPa) or more, and pressure differential between
cut-out and target shall be 3 psi (0.02MPa) or more.
Fixed speed type : Pressure differential between cut-out and cut-in shall be15 psi (0.1 MPa) or more.
2. External selection of Cut-in/Cut-out pressure combination 1 or 2 is an option. (F018-2)
● Capacity control pressure setting conditions
Type Setting conditions (Example of Pressure setting 1)
Fixed-speed
① F023 shall be set F024 + 3 or higher, and F025 + 3 or higher.
Variable-speed
① F023 shall be set F022 + 3 or higher.
② F024 shall be set F022 or lower.
Note 2: The same setting condition is applied for Pressure Setting 2 (F031 to F034).
IMPORTANT
Function
7 segment
display
Item Range
Precision/
unit
Default Remarks
100 / 125 psi (0.69 / 0.86 MPa) specifi cations
V type
Pressure
setting 1
※2
F022
Control pressure
setting 1 psi (MPa)
73 〜 125
(0.5 〜 0.86)
1 psi
(0.01 MPa)
125
(0.86)
※Setting can be altered at
any time.
F023
Cut-out pressure 1
psi (MPa)
73 〜 128
(0.5 〜 0.88)
1 psi
(0.01 MPa)
128
(0.88)
F024
Cut-in pressure 1
psi (MPa)
73 〜 122
(0.5 〜 0.84)
1 psi
(0.01 MPa)
120
(0.83)
F025
Restart pressure 1
psi (MPa)
73 〜 122
(0.5 〜 0.84)
1 psi
(0.01 MPa)
120
(0.83)
Pressure
setting 2
※2
F031
Control pressure2
psi (MPa)
73 〜 125
(0.5 〜 0.86)
1 psi
(0.01 MPa)
125
(0.86)
F032
Cut-out pressure 2
psi (MPa)
73 〜 128
(0.5 〜 0.88)
1 psi
(0.01 MPa)
128
(0.88)
F033
Cut-in pressure 2
psi (MPa)
73 〜 122
(0.5 〜 0.84)
1 psi
(0.01 MPa)
120
(0.83)
F034
Restart pressure 2
psi (MPa)
73 〜 122
(0.5 〜 0.84)
1 psi
(0.01 MPa)
120
(0.83)
Fixed
speed
type
Pressure
setting 1
※2
F023
Cut-out pressure 1
psi (MPa)
73 〜 100 [125]
(0.5 〜 0.69 [0.86])
1 psi
(0.01 MPa)
100 [125]
(0.69 [0.86])
※Setting can be altered at
any time.
F024
Cut-in pressure 1
psi (MPa)
73 〜 86 [110]
(0.5 〜 0.59 [0.76])
1 psi
(0.01 MPa)
85 [110]
(0.59 [0.76])
Pressure
setting 2
※2
F032
Cut-out pressure 2
psi (MPa)
73 〜 100 [125]
(0.5 〜 0.69 [0.86])
1 psi
(0.01 MPa)
100 [125]
(0.69 [0.86])
F033
Cut-in pressure 2
psi (MPa)
73 〜 86 [110]
(0.5 〜 0.59 [0.76])
1 psi
(0.01 MPa)
85 [110]
(0.59 [0.76])
Shutdown history clear F041 (＊1) History clear 0 〜 1 1 00：Enter, 1：History clear
Note:
※ Setting of the items without ※ in remarks can be memorized while the air compressor is stopped.
＊1: When set to “1”, history is cleared. After clearing, the value is automatically reset to “0”.
＊2: Refer to the below table about the Pressure combination.
Do not change the setting of F items that are not specified in the table above.

Hitachi NEXT Series Specifications

General

Brand	Hitachi
Model	NEXT Series
Category	Air Compressor
Language	English