KEPCO EL Series Electronic Load Operator Manual P/N 243-1295 Firmware Version 3.63 through 3.86 - Manual (Page 15)

SERIES EL 070312
1-5
1.6 SPECIFICATIONS
Parameters unique to different models of Series EL loads are listed in Table 1-1. Specifications
common to all Series EL models are listed in Table 1-2.
TABLE 1-2. SERIES EL SPECIFICATIONS
SPECIFICATION RATING/DESCRIPTION CONDITION/COMMENT
MODE CHARACTERISTICS
Linearity vs. programming command See Table 1-3
5 – 100%; accuracy is % of Full Scale value(2)
Regulation(1)
See Table 1-3
5 – 100%; regulation is % of Full Scale value(2)
Resolution (via computer control) 14 Bits 5 – 100% of Full Scale
Current readback
(Current mode) Computer Accuracy: ±0.25%
5 – 100%; accuracy is % of Full Scale value(2)
Computer Resolution: ±15 Bits 5 – 100% of Full Scale
Parameter readback
(Current and Voltage) Accuracy: ±0.25% (±1% for 50V models) Accuracy is % of Full Scale value(2)
Resolution: ±15 Bits
Temperature
coefficient:
100 ppm/°C
CONTROL CHARACTERISTICS
USB Interface Uses IEEE 488.2 and SCPI
commands and queries.
Requires driver.
RS 232 Interface Uses IEEE 488.2 and SCPI
commands and queries.
Baud rate: 38400
Parity: None
Data Bits: 8
Stop Bits: 1
Flow Control: None
GPIB Interface Uses IEEE 488.2 and SCPI
commands and queries.
Optional. GPIB address 10 = default
Ethernet Interface Uses IEEE 488.2 and SCPI
commands and queries.
Optional.
INPUT IMPEDANCE
EL 1K Models 161K Ohms
EL 2K Models 80K Ohms
EL 3K Models 54K Ohms
EL 4K Models 38K Ohms
EL 5K Models 26K Ohms
GENERAL CHARACTERISTICS
a-c Line Power Input 120 VAC ±10%, 50/60 Hz or
240 VAC ±10%, 50/60 Hz
120V is factory default; 240V requires internal
configuration(3) (see PAR 2.3.1)
Cooling Forced Air (400 CFM) Variable speed fans, cooling determined by load
demand.
Operating Tempera-
ture 0°C to 40°C
Dimensions (load) 19”W x 7”H x 24.5”D See Figure 2-10.
Weight (load) 88 lbs.
Storage Requirements –20 to +60°C, 15 to 80% RH Relatively dust free environment.
NOTES:
(1) Regulation specified after 15 minutes of operation at set power level. (2) Accuracy and regulation are valid from 5% to 100% of
the rated value. The accuracy (e.g., ±0.25% of a constant current setpoint) is ±0.25% of the full scale value and not the setpoint.
(3) For 240V configuration of dual-channel models, contact Kepco.