Hitachi ZA3000 Series, Инструкция по эксплуатации

Страница: 478 / 522

1 - 2
1.2 Required Equipment
1.2.1 Power Supply
The specifications of the power supply for this system are given
in Table 1-1.
Table 1-1 Power Supply Specifications
Part No. Voltage Allowable
Voltage Fluctuation
Capacity Frequency
7J1-8821 115 V
±10 % 50 VA
50/60 Hz
(common)
7J1-8822 220 V
7J1-8823 230 V
7J1-8824 240 V
7J1-8827 220 V
7J1-8828 220 V
Grounding
：
Connect the instrument to a ground terminal with a
grounding resistance of 100 ohms or less.
1.2.2 Gases
Prepare compressed air (compressor), acetylene and argon gases.
The specification of the Argon gas for this system are given
in Table 1-2.
Table 1-2 Argon gas Specification
Gas Pressure Regulator Supply Pressure
(secondary pressure setting)
Argon Primary : 25 MPa
Secondary: 1 MPa
Full scale
500 kPa
Attach a stop valve to the terminal of the pipe in the measuring room.
The details refer to the ZA3000 series Maintenance Manual.
NOTE: Operation with an improper gas pressure may result in a
performance degradation of the instrument.