Ametek SEQUOIA Series - Page 34

Sequoia / Tahoe Series User Manual California Instruments
M447352-01 REV-A 11
2.5 Output Electrical Characteristics- AC/DC SINK -Electronic load mode
The following output characteristics are applicable only for SEQUOIA model
Applicable for all Models
Working modes AC, DC Mode
Current Range As shown in Section 2.6 and Section 2.7
Current Resolution 0.1% of full scale
Current Programming Accuracy ± (0.3% of actual + 0.5% of full-scale) for AC & DC
16 Hz to 905 Hz; add ±0.1% of full-scale for AC+DC mode. Valid from
10% of full-scale to 100% of full-scale.
Full scale for SQ0022&TA0022/SQ0030&TA0030 are considered as
125A for accuracy calculation.
Current Slew Rate, Typical < 1ms for 10% to 90% of full scale at a step transient
Current distortion
< 1 % @ 16 - 100 Hz
< 2 % @ > 100 - 300 Hz
< 4 % @ > 300 Hz
Frequency Range 16 Hz - 550 Hz
Phase shift Range 0 to 90.0° (lead/lag) (Between output phase voltage and current)
Phase shift Accuracy
<2° @ 16 Hz - 100 Hz
< 3° @ > 100 Hz - 300 Hz:
< 4° @ > 300 Hz
Phase shift Resolution 0.1°
Power resolution 10 W / 10 VA
Power programming accuracy 1% of full scale
Resistance range per phase
(Applicable to AC mode and DC
mode)
Refer to section 2.10 for the details
At a given operating voltage Minimum and Maximum resistance is
determined as follows
Minimum resistance = Operating UUT Voltage / (Maximum RMS
current at the operating voltage)
Refer to Section 2.6, Figure 2-3 to find the maximum RMS current
allowed for given operating UUT voltage
Maximum resistance = Operating UUT Voltage / (0.8% of rated
current)
Inductance range per Phase (Only
Applicable to AC mode)
Refer to section 2.10 for the details
At a given operating voltage Minimum and Maximum inductance is
determined as follows
Minimum Inductance = Operating UUT Voltage / (Maximum RMS
current at the operating voltage * 2 *Pi* Maximum Frequency)
Refer to Section 2.6, Figure 2-3 to find the maximum RMS current
allowed for given operating UUT voltage
Maximum Inductance = Operating UUT Voltage / 0.8% of rated
current* 2 * Pi* Minimum Frequency)
Capacitance range per Phase
(Only Applicable to AC mode)
Refer to section 2.10 for the details
At a given operating voltage Minimum and Maximum capacitance is
determined as follows
Maximum Capacitance = (Maximum RMS current at the operating
voltage) / (Operating UUT voltage * 2 *Pi* Minimum Frequency)