
63
Operation
Summary of Operational Limits
3.6 Summary of Operational Limits and Default Settings
Table 3-6 provides a summary of the operational limits and the default
setting for all Model 420 parameters. If the operator attempts to enter a
value outside of the limits, the Model 420 will beep once and revert to the
previous setting.
References to the specifications on page 7 indicate that the absolute limit
is determined by the specific configuration of the Model 420 purchased.
Table 3-6. Summary of limits and defaults for the Model 420.
Model 420 Setting (Units)
Absolute Limits
Default Setting
a
a. Unless preset by factory.
Min Output Voltage (V)
0.000 to
−
20.000
0.000
Max Output Voltage (V)
0.001 to +20.000
12.000
Min Output Current (A)
(see page 7)
0.000
Max Output Current (A)
(see page 7)
100.000
V-V Mode Input Range (V)
−
10.000 to +10.000
0.000 to +10.000
Stability Setting (%)
0.0 to 100.0
0.0
Coil Constant (kG/A)
0.001 to 999.99999
0.0
PSwitch Current (mA)
0.1 to 100.0
10.0
PSwitch Heated Time (sec)
5 to 120
15
Current Limit (A)
≥
Min Output Current and
≤
Max Output Current
80.000
Display Contrast (%)
0 to 100
80
Voltage Limit (V)
≥
0.001 and
≤
Max Output Voltage
2.000
Ramp Rate (A/sec)
(see page 7)
0.100
Programmed Current (A)
≤
Current Limit
5.000
Summary of Contents for 420
Page 2: ......
Page 4: ......
Page 6: ......
Page 12: ...x Rev 7 List of Tables ...
Page 18: ...xvi Rev 7 Foreword Safety Summary ...
Page 22: ...4 Rev 7 Introduction Front Panel Layout ...
Page 24: ...6 Rev 7 Introduction Rear Panel Layout ...
Page 30: ...12 Rev 7 Introduction Operating Characteristics ...
Page 54: ...36 Rev 7 Installation Power Up Procedure ...
Page 82: ...64 Rev 7 Operation Summary of Operational Limits ...