Programming

The 9814 output is set by transmitting via

the IEEE (GPIB) bus a command that

represents the output voltage and polarity.

For example: the command -9.2142 will set

the output to -9.2142 volts. The 9814 will

automatically select the required range.

If required a particular range can be

selected by sending R1, R2, R3, R4, R5 or

R6 to select the 10mV, 100mV, 1 V, 10V,

100V or 1kV ranges respectively.

The

required output is then sent as normal. Pre-

selecting the range in this way will improve

the

output

setting

time

under

some

circumstances.

Group Execute Trigger Mode

In Group Execute Trigger mode, the

required output is stored until receipt of the

GET command.

9814

Programmable DC Voltage Calibrator

Time Electronics Limited, Botany Industrial Estate, Tonbridge, Kent, TN9 1RH.

Telephone: 01732 355993

Fax: 01732 770312

E-mail: mail@TimeElectronics.co.uk

Web page: www.TimeElectronics.co.uk

The

9814

is

a

high

performance

programmable D.C. Voltage Calibrator. By

combining the latest microprocessor and

linear circuit technology, exceptional long

term stability has been achieved. Computer

selection of the basic reference device

combined with high performance precision

resistors ensure a guaranteed 50 ppm per

year stability.

Outputs from 0 to 10V may be generated or

up to 1.2kV with the optional high voltage

board.

The high voltage board is fitted

internally and gives unit two extra ranges.

Construction is based on the standard Euro

card frame.

Each main section i.e.

Microprocessor Control, IEEE interface, D-A

Converter, Reference Amplifier etc. are

located on a separate plug in Euro boards.

All boards are easily accessible from the

instrument rear. The 9814 may be operated

in a manual mode with all controls located

on the front panel.

* 10mV to 10V D.C.

* 100V & 1kV ranges optional

* 0.01% accuracy

* 30% overrange on all ranges

* IEEE/GPIB/HPIB/IEC bus compatible

Introduction

V5 21/10/03