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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 | ||
|introduced=1971 | |||
manuals= | |discontinued=1987 | ||
* [[Media:070-1096-00.pdf|Tektronix 7D13 Service]] (OCR | |manuals= | ||
* [[Media:7000 Series Digital Plug-In Applications.pdf|7000 Series Digital Plug-In Applications | * [[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 | 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: | {{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 | 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. | ||