The Keysight 60501B (formerly Agilent / HP) is a 150-watt DC electronic load module designed for use with the 6050A and 6051A DC electronic load mainframes. It is ideal for evaluating DC power sources and power components in research and development, production testing, and incoming inspection environments. The module offers versatile constant current, constant voltage, and constant resistance modes, as well as transient operation capabilities and analog voltage programming.

Specifications

General

ParameterValue
InterfacesGPIB (via mainframe)
DisplayNone (uses mainframe display)
Power DeratingLinearly from 150 W at 40 °C to 112.5 W at 55 °C

Physical

ParameterValue
Power SupplyPowered by mainframe backplane
Operating Temperature0 to 55 °C
Dimensions (W×H×D)73 mm × 178 mm × 444 mm
Weight3.2

Input Ratings

ParameterValue
Maximum Power150 W
Maximum Input Voltage60 V
Maximum Input Current30 A
Minimum Operating Voltage3 V (at full current)

Constant Current (CC) Mode

ParameterValue
Constant Current Mode Ranges0 to 3 A; 0 to 30 A
CC Low Range Max Value3 A
CC High Range Max Value30 A
CC Low Range Programming Accuracy0.1% + 7.5 mA
CC High Range Programming Accuracy0.15% + 45 mA
CC Low Range Programming Resolution0.75 mA
CC High Range Programming Resolution7.5 mA
CC Load Regulation5 mA
CC Line Regulation2 mA
CC Low Range Tempco100 ppm/°C + 0.4 mA/°C
CC High Range Tempco100 ppm/°C + 3 mA/°C

Constant Voltage (CV) Mode

ParameterValue
Constant Voltage Mode Range0 to 60 V
CV Programming Accuracy0.1% + 40 mV
CV Programming Resolution15 mV
CV Load Regulation10 mV
CV Line Regulation5 mV
CV Tempco100 ppm/°C + 4 mV/°C

Constant Resistance (CR) Mode

ParameterValue
Constant Resistance Mode Ranges0.067 to 2 Ohms; 2 Ohms to 2 kOhms; 20 Ohms to 10 kOhms
CR Range 1 Min/Max Values0.067 to 2 Ohms
CR Range 2 Min/Max Values2 Ohms to 2 kOhms
CR Range 3 Min/Max Values20 Ohms to 10 kOhms

Transient Operation

ParameterValue
Transient Frequency Range0.25 Hz to 10 kHz
Low Range Slew Rate0.0008 A/µs to 0.08 A/µs
High Range Slew Rate0.008 A/µs to 0.8 A/µs

Measurement Readback (Telemetry)

ParameterValue
Voltage Readback Resolution (GPIB)17 mV
Voltage Readback Resolution (Front Panel)20 mV
Current Readback Resolution (GPIB)9 mA
Current Readback Resolution (Front Panel)10 mA
Voltage Readback Accuracy (GPIB)0.05% + 45 mV
Voltage Readback Accuracy (Front Panel)0.05% + 60 mV
Current Readback Accuracy (GPIB, 3 A Range)0.07% + 4.5 mA
Current Readback Accuracy (GPIB, 30 A Range)0.1% + 35 mA
Current Readback Accuracy (Front Panel, 3 A Range)0.07% + 6 mA
Current Readback Accuracy (Front Panel, 30 A Range)0.1% + 45 mA

Ripple and Noise (PARD)

ParameterValue
Current Ripple and Noise (PARD, rms)2 mA
Current Ripple and Noise (PARD, peak-to-peak)20 mA

Protection Features

ParameterValue
Over-Voltage Protection (OVP)Yes
Over-Current Protection (OCP)Yes
Over-Power Protection (OPP)Yes
Over-Temperature Protection (OTP)Yes
Reverse Polarity ProtectionYes (with reverse diode capability)

System Connectivity & Interfaces

ParameterValue
Mainframe CompatibilityKeysight / Agilent / HP 6050A, 6051A
Module Slot Width Requirement1 slot (single-width)

Environmental & Safety

ParameterValue
Isolation Voltage (Input to Chassis)±240 VDC
Storage Temperature Range-40°C to +75°C

Analog Monitor and Programming

ParameterValue
Current Monitor Output Range0 to 10 V
Voltage Monitor Output Range0 to 10 V
Current Monitor Accuracy±(0.5% + 15 mV)
Voltage Monitor Accuracy±(0.5% + 30 mV)
External CC Programming Input Range0 to 10 V
External CV Programming Input Range0 to 10 V
External CC Programming Accuracy±(1.2% + 150 mA) on 30 A range, ±(1.2% + 15 mA) on 3 A range
External CV Programming Accuracy±(0.8% + 120 mV)

Remote Sensing

ParameterValue
Remote Sense Max Lead Drop2 V per load lead

Constant Resistance Mode Accuracy

ParameterValue
CR Mode Range 1 Accuracy±(3% + 0.01 S)
CR Mode Range 2 Accuracy±(3% + 0.2 mS)
CR Mode Range 3 Accuracy±(3% + 0.02 mS)

Transient Generator

ParameterValue
Transient Generator Duty Cycle Range3% to 97% (0.25 Hz - 1 kHz), 10% to 90% (1 kHz - 10 kHz), 20% to 80% (10 kHz - 20 kHz)
Transient Generator Duty Cycle Resolution1%
Transient Generator Frequency Accuracy3%

Performance

ParameterValue
Minimum Voltage for Full Current3.0 V at 30 A
Input Capacitance (nominal)1.1 µF
Input Resistance (disabled)150 kΩ
Warm-up Time30 minutes

Protections

ParameterValue
OCP Programming Range0.15 A to 31.5 A
OCP Programming Resolution0.12 A
OCP Programming Accuracy3% + 0.35 A
OPP Programming Range1.5 W to 157.5 W
OPP Programming Resolution0.6 W
OPP Programming Accuracy3% + 2.5 W
OVP Programming Range1 V to 65 V
OVP Programming Resolution0.26 V
OVP Programming Accuracy3% + 0.6 V

Constant Resistance Mode

ParameterValue
CR Range 1 Programming Resolution (GPIB)8 mS
CR Range 2 Programming Resolution (GPIB)80 μS
CR Range 3 Programming Resolution (GPIB)1.6 μS
CR Range 1 Programming Resolution (Front Panel)40 mS
CR Range 2 Programming Resolution (Front Panel)0.4 mS
CR Range 3 Programming Resolution (Front Panel)8 μS

Technology

DC Electronic Load Module

Applications

Evaluation and testing of DC power sources, batteries, and electronic components