7D13: Difference between revisions

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{{Plugin Sidebar |
{{Plugin Sidebar
manufacturer=Tektronix | type=7D13|
|manufacturer=Tektronix  
summary=3½ digit Digital Multimeter|
|series=7000-series scopes
image=7D13_front.jpg |  
|type=7D13
caption=7D13 front view |
|summary=3½ digit Digital Multimeter
introduced=1971 |
|image=7D13_front.jpg  
discontinued=1987 |
|caption=7D13 front view
series=7000-series scopes|
|introduced=1971
manuals=
|discontinued=1987
* [[Media:070-1096-00.pdf|Tektronix 7D13 Service]] (OCR, PDF)
|manuals=
* [[Media:7000 Series Digital Plug-In Applications.pdf|7000 Series Digital Plug-In Applications (PDF)]]
* [[Media:070-1096-00.pdf|Tektronix 7D13 Service]] (OCR)
* [[Media:7000 Series Digital Plug-In Applications.pdf|7000 Series Digital Plug-In Applications]]
}}
}}
The '''Tektronix 7D13''' is a digital multimeter plug-in for [[7000-series scopes]] with CRT readout. It will function in any compartment. There is no analog output signal presented on the CRT; therefore, it is not necessary to select the 7D13 with the oscilloscope Vertical or Horizontal Mode switches.
The '''Tektronix 7D13''' is a digital multimeter plug-in for [[7000-series scopes]] with CRT readout. It will function in any compartment. The 7D13 was [[introduced in 1971]] and followed by the [[7D13A]] face-lift in 1982.
 
There is no analog output signal presented on the CRT, therefore it is not necessary to select the 7D13 with the oscilloscope Vertical or Horizontal Mode switches.


The input section is galvanically isolated, allowing the input to float ±1500 volts with respect to chassis ground.
The input section is galvanically isolated, allowing the input to float ±1500 volts with respect to chassis ground.
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{{Spec | Current ranges    | 1.999 mA, 19.99 mA, 199.9 mA, 1999 mA}}
{{Spec | Current ranges    | 1.999 mA, 19.99 mA, 199.9 mA, 1999 mA}}
{{Spec | Resistance ranges  | 199.9 Ω, 1999 Ω, 19.99 kΩ, 199.9 kΩ, 1999 kΩ}}
{{Spec | Resistance ranges  | 199.9 Ω, 1999 Ω, 19.99 kΩ, 199.9 kΩ, 1999 kΩ}}
{{Spec | Temperature        | 7D13: -55 °C to +125 °C, requires [[P6058]] voltage/temperature probe <br />7D13A: requires [[P6601]] PT-100 probe}}
{{Spec | Temperature        | 7D13: −55 °C to +125 °C, requires [[P6058]] voltage/temperature probe <br />7D13A: requires [[P6601]] PT-100 probe}}
{{EndSpecs}}
{{EndSpecs}}


==Internals==
==Internals==
The 7D13 consists of an analog pulse width modulator front-end built with 741 op amps and dual FETs, and a 3½ digit counter section using standard 74xx TTL parts which is interfacing with the [[7000 series readout system|readout system]] (through a [[155-0038-00]] D/A converter).  The front end is isolated by transformers used for pulses and a floating ±15 V supply.
The 7D13 consists of an analog pulse-width modulator front-end, built with 741 op amps and dual FETs, and a 3½ digit counter section, using standard 74xx TTL parts, that interfaces with the [[7000 series readout system|readout system]] through a [[155-0038-00]] D/A converter.  The front-end is isolated by transformers used for pulses and a floating ±15 V supply.
The Probe jack for the [[P6058]] (a 4-pin [[LEMO S-series connector]]) has contacts for the temperature sensor (a diode-connected transistor) as well as the voltage input terminals.
The Probe jack for the [[P6058]] (a 4-pin [[LEMO S-series connector]]) has contacts for the temperature sensor (a diode-connected transistor) as well as the voltage input terminals.


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