5
Constant Resistance Mode (CR)
Resistance Ranges:
0·04 to 10
Ω
(0·01
Ω
resolution) and 2 to 400
Ω
(0·1
Ω
resolution).
Setting Accuracy:
±0·5% ± 2 digits ± 30 mA.
Regulation:
< 2% for 90% load power change (V > 2 Volts, using remote sense).
Temperature Coefficient:
< (±0·04% ± 5 mA ) per ºC.
(2)
Slew Rate Ranges:
10
Ω
range: 1
Ω
per s to 100
Ω
per ms.
400
Ω
range: 40
Ω
per s to 4000
Ω
per ms.
(3)
Minimum transition time:
150 µs.
Constant Conductance Mode (CG)
Conductance Ranges:
<0·01 to 1 A/V (1 mA/V resolution)
and <0·2 to 40 A/V (0·01 A/V resolution).
Setting Accuracy:
± 0·5% ± 2 digits ± 30 mA.
Regulation:
< 2% for 90% load power change (V > 2 Volts, using remote sense).
Temperature Coefficient:
< (±0·04% ± 5 mA) per ºC.
(2)
Slew Rate Ranges:
1 A/V range: 0·1 A/V per s to >10 A/V per ms.
40 A/V range: 4 A/V per s to >400 A/V per ms.
(3)
Minimum transition time:
150 µs.
Constant Voltage Mode (CV)
Voltage Ranges:
V
min
to 8 V (1 mV resolution) and V
min
to 80 V (10 mV resolution).
V
min
depends on current: typically <100mV at 4A to <2V at 80A.
Setting Accuracy:
± 0·2% ± 2 digits.
Regulation:
< 30 mV for 90% load power change (using external sense).
Temperature Coefficient:
< (0·02% + 1 mV) per ºC.
(2)
Slew Rate Ranges:
8 V range:
0·8 V per s to 80 V per ms.
80 V range:
8 V per s to 800 V per ms.
(3)
Minimum transition time:
150 µs.
TRANSIENT CONTROL
Transient Generator
Pulse Repetition Rate:
Adjustable from 0·01Hz (100 seconds) to 10kHz.
Pulse Duty Cycle:
1% to 99% (percentage of period at Level A).
Setting Accuracy:
±1 %
Slew Rate Control
The slew rate control applies to all changes of level whether caused by manual selection, remote
control or the transient generator.
The level change is a linear slew between the two level settings. The range available in each
mode is shown above.
Setting Accuracy:
± 10% (on linear part of slope, excluding high frequency aberrations).
Variation in Level Settings:
± 5 digits of specified setting resolution for present mode and range.
Oscillator Sync Output
Connection:
Terminal block on rear panel. Opto-isolated open collector output
conducts during Level B phase of internal transient generator.
Ratings:
Max. off-state Voltage: 30V. On-state sink current: 2mA (typical).
