Keithley 7158 Einschub
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Modell:
7158
Datum:
1987
Kategorie:
Gruppe:
Beschreibung:
Low Current Scanner Card
Information
INTRODUCTION
The Model 7158 Low Current Scanner Card has ten channels of
paired single-pole single-throw (SPST), normally open (NO)
relays. The card will switch any one of ten signals to one
output, or switch one signal to any one of ten outputs.
Signal HI is connected to signal LO (analog ground) when the
scanner mainframe channel is open, and to output HI when the
channel is closed. Signal LO is common to all ten channels
and the output. An additional relay isolates all circuitry
on the card from the output when no channel is closed.
Features of the scanner card include:
• Low offset current error (<1pA specified, <30fA typical).
• Switching of AC or DC signals up to 100mA.
• BNC input and output connectors.
• Two outputs for daisy-chaining of Model 7158 cards.
• Configurable for low current or low voltage switching.
The Model 7158 is field-installable in the Models 705 and
706 scanner mainframes.
Dokumenttyp:
Service- und Bedienungsanleitung
Seiten:
46
Größe:
1.16 Mbytes (1217536 Bytes)
Sprache:
english
Revision:
B
Dokument-ID:
7158-901-01
Datum:
1990 06 01
Qualität:
Gescanntes Dokument, alles ist lesbar.
Upload Datum:
2018 08 25
MD5:
bf7844828767a45687d65b7bd4e2dc79
Downloads:
442
Information
SECTION 1 - GENERAL INFORMATION
1.1
Introduction ... 1
1.2 Warranty
Information ... 1
1.3 Manual
Addenda ... 2
1.4 Safety Symbols and Terms
... 2
1.5 Unpacking and
Inspection ... 2
1.6 Specifications
... 3
SECTION 2 - OPERATION
2.1 Introduction ... 5
2.2 Safety Precautions ... 5
2.2.1 High Impedance Considerations ... 5
2.2.2 Static Precautions ... 6
2.3 Connections and Cabling ... 6
2.4 Installation and Removal ... 8
2.5 Operation ... 10
2.5.1 Scanner Control of the Channels ... 11
2.5.2 Operation Notes ... 18
2.6 Applications ... 18
SECTION 3 - SERVICING INFORMATION
3.1 Introduction ... 25
3.2 Handling and Cleaning ... 25
3.3 Relay Replacement ... 26
3.4 Recommended Test Equipment ... 27
3.5 Offset Current Test ... 27
3.6 Contact Resistance Test ... 29
SECTION 4 - REPLACEABLE PARTS
4.1 Introduction ... 33
4.2 Parts Lists ... 33
4.3 Ordering Information ... 33
4.4 Factory Service ... 35
4.5 Component Layout and Schematic Diagram ... 35