6
2.SPECIFICATIONS AND COMPONENTS
2.1.Standard Specifications
Name
Model GI-M2 metal
ionization vacuum gauge
Model GI-D7 ionization
vacuum gauge
Model GI-N8 ionization
vacuum gauge
Compatible
sensor head
1 pc
Pressure display
Mantissa part 3 digits, exponent part 2 digits digital display
□
.
□□
×
10
□□
※1)
Compatible
sensor head
M-11,M-12,M-13,M-14,
M-15
WIT-G type, WIB-G type,
WIB-N3
WIN-Gtype, WIN-N2,
WIN-N3
Measurement
pressure range
5.00
×
10
-
8
-
9.99
×
10
0
(Pa)
3.00
×
10
-
10
-
7.40
×
10
-2
(Torr)
WIT
:
1.30
×
10
-
5
-
6.70
×
10
-
1
(Pa)
1.00
×
10
-
7
-
5.00
×
10
-
3
(Torr)
WIB
:
1.30
×
10
-
6
-
1.30
×
10
-
2
(Pa)
1.00
×
10
-
8
-
1.00
×
10
-
4
(Torr)
4.00
×
10
-
9
-
6.60
×
10
-
1
(Pa)
3.00
×
10
-
11
-
5.00
×
10
-
3
(Torr)
Measurement
accuracy
Within
±15%
Operating
potential
Grid potential: 150(V), Filament potential: 25(V), Collector potential:0(V)
Emission current
10
μA,
1.0
mA
※2)
WIT
:
0.595mA
WIB
:
1.0mA
0.5
m
A
,
5.0mA
※3)
Sensor head
sensitivity
0.06 Pa
-1
WIT
:
0.139 Pa
-1
WIB
:
0.083 Pa
-1
0.153 Pa
-1
Pressure
protecting
function
9.99
×
10
-
0
Pa
※4)
7.40
×
10
-
2
Torr
WIT:
9.99
×
10
-
1
Pa
9.99
×
10
-
3
Torr
WIB:
2.00
×
10
-
1
Pa
2.00
×
10
-
3
Torr
6.60
×
10
-
1
Pa
6.60
×
10
-
3
Torr
Degassing
function
Direct electrical heating
of grid
AC
Power
1.5VA
Direct electrical heating
of grid
AC
Power
1.5VA
Electron bombardment
system.
※5)
500V
、
5mA
Normal mode
:
Operates according to DEGAS ON/OFF signal.
Auto OFF mode
:
When this mode is set, degassing is automatically turned off
after a preset time by setting an arbitrary time of 01 to 99 minutes
Function
Settiong of range hold
、
Selection of filament
、
Setting of sensitivity
Sampling time
100ms
ec
Analog output
Each digit mantissa part linear output,
All measurement ranges pseudo-log. Output,
Designated range hold linear output, LOG Output
Resolution : 10mV
Output impedance : Approx. 100 ohms
Setpoint
Two points can be set independently.
Relay contact output (COM, a contact, b contact for each setting).
Contact capacity
AC:125
V
MAX
,
0.5A
MAX
/
DC:
24V
MAX
,
1.0A
MAX
Control input
signal
Control changeover, Filament ON/OFF, Filament 2/1, Degas ON/OFF, Range hold,
External protecting
Control output
signal
Analog output (0-10V), BDC output, Power condition, Filament ON/OFF, Emission
setting, Degas ON/OFF, Emission valid OK/NG
RS-232C
9600
/
19200
/
38400 bps
Operating
temperature
range
10
~
40
℃
Operating
humidity range
15
~
80
%
(
No condensation
)
Summary of Contents for GI-M2
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