
ISO-
Keithley MetraByte Corporation

ISO- Manual
Part Number: 24094
Revision A
Last Edit: 1987
Coptright 0 1987
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KEITHLEY METRABYTEIASYSTIDAC
440 Myles Standish Boulevard
Taunton, Massachusetts 02780
Telephone 508/880-3000
FAX 508/880-0179

WARRANTY INFORMATION
All products manufactured by Keithley MetraEIyte are warranted against defective materials
and worksmanship for a period of one year from the date of delivery to the original
purchaser. Any product that is found to be defective within the warranty period will, at the
option of Keithley MetraByte. be repaired or replaced. This warranty does not apply to
products damaged by improper use.

WAKNlNG
Keithley MetraByte assumes no Uabillty for damages consequent to the
use of this product. This product is not designed with components of a
level of reliability suitable for use in life support or ctitical applicatfons.
Information furnished by Keithley MetraByte is believed to be accurate and reliable.
However, the Keithley MetraByte Corporation assumes no responsibility for the use of such
information nor for any infringements of patents or other rights of third parties that may
result from its use.
No license is granted by implication or otherwise under any patent
rights of Keithley MetraByte Corporation.
Keithley MetraByte/Asyst/DAC is also referred to here-in as Keffhky MelraByte.
Ba[ilcTM is a trademark of Dartmouth College.
IBM@
is a registered trademark of International Business Machines Corporation.
PC, XT, AT, P&i/2. and Micro Channel Architecture@ (MCA) are trademarks of
International Business Machines Corporation.
Microsoft@ is a registered trademark of Microsoft Corporation.
Turbo C@ is a registered trademark of Borland International.

ISO- MANUAL
TABLE OF CONTENTS
CHAPTER ONE - Introduction
1.1
Summary
of ISO- Functions
CHAPTER TWO - Hardware
2.1
2.2
Typical Input Channel Configuration
power Supplies & Cables
2.3 Gain Selection
2.4
Signal & Channel Selection
2.5 Current Measurements
2.6
'2.7
Open Input Sensor Detection
Input Filtering
2.8 Input Offset considerations
2.9
Input Offset Trim
2.10 Voltage & Current References
2.11 Using Multiple ISO-4's
CHAPTER THREE - Programming
3.1 Channel Selection
3.2 Programming with the DAS-8
3.3 Thermocouples & other Transducers
CHAPTER FOUR - Calibration
CHAPTER FIVE - Specifications
2
4
10
10
11
13 .
15
1