Krohn-Hite Model 526 Precision DC Power Supply/Calibration Power Supply

Technical specifications

Voltage range: ±100nV to ±110V, 4 ranges,

Each decade has full carry and borrow capability

Current range: ±10 nA to ±110 mA, 2 ranges,

Each decade has full carry and borrow capability

Resolution: 1ppm

Accuracy: 1 year, 20ppm

Stability (24 hours): 3 ppm

Settling time: 2ms

Compliance voltage: 100 V

Settable voltage and current limits

Zero-crossing operation

"Protect" zero reference

Local and GPIB / optional LAN remote control

Replaces the analog Model 8200

General Description

The Krohn-Hite Model 526 Precision DC Voltage/ Current Source/ Calibrator is

A highly stable and repeatable DC voltage source and DC current source, providing

N.I.S.T. traceable voltage and current for production, calibration laboratories, qual

calibration assurance and quality control departments, design laboratories, or anywhere accurate voltage

and current sources are required.

The 526 provides ±100nVdc to ±111.1110Vdc within 20ppm and

Precise voltage for 1 year, providing precise current from ±10 nA to

±111.1110 mA within 50 ppm for 1 year. It has very low noise, at

noise measured over a 10Hz to 100kHz bandwidth of <12μVrms.

Decade control

The microprocessor used for decade control allows continuous use of one decade,

With full carry and borrow capability to and from more significant decades, for

ease of use and convenient manual operation. By using one decade control,

monotonic linear A/D measurement at any resolution can be achieved.

Display and front panel controls

A user-friendly 2 line 40 character display and six front panel decade

switch, with full carry and borrow, allowing fast and precise voltage and current

settings. The output setting can be modified using the front-panel decade switches and range keys

rent settings. The output is 2 wire, 4 wire via a single keypress or GPIB/LAN .

When needed, the protect function places the output in a safe mode. The 526 output can be set

to 0 V, allowing output sensing to maintain a true 4 -wire low-impedance output.

Ranges and resolution

The 526 provides 4 voltage ranges of 100mV, 1V, 10V and 100V, with resolution

rates of 100 nV, 1 μV, 10 μV and 100 μV respectively. Provides 2 current

ranges of 10 mA and 100 mA, with resolutions of 10 nA and 100 nA respectively.

Non-volatile memory

The 526 provides up to 32 stored output settings that can be recalled at any time.

Voltage, current and compliance limits

Select voltage and current limits to prevent the user from damaging sensitive circuits or the device under test

units, configurable from the front panel; hardware compliance voltage limits can also be set

120 V, 36 V, 26 V or 16 V.

Applications

The 526 is ideal for a wide range of applications, such as: high-speed, high-resolution A/D conversion

design, detection and calibration of devices; design

and certification of high-speed data logging and process control systems; calibration of digital voltmeters and multimeters; as an "embedded standard"

and/or simulator; design, testing,

simulation and certification of thermocouple, strain gauge and sensor instrumentation. It is also a replacement for the Model 8200 .