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Both sides previous revision Previous revision Next revision | Previous revision | ||
equipment:oscilloscopes [2020/03/18 20:13] whitecf Added pictures. |
equipment:oscilloscopes [2020/10/24 11:16] (current) tggzzz |
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===== Oscilloscopes ===== | ===== Oscilloscopes ===== | ||
- | Since the oscilloscope and probe become part of the circuit being tested, it is also necessary to understand //and apply// the information on the [[equipment: | + | Since the oscilloscope and probe become part of the circuit being tested, it is also necessary to understand //and apply// the information on the [[equipment: |
- | {{ : | + | |
- | {{ : | + | |
====Safety==== | ====Safety==== | ||
- | Oscilloscopes can be used dangerously, | + | **Oscilloscopes can be used dangerously**, especially when connecting to anything connected to the mains voltages, and it is easy for a beginner to make a subtle mistake. **Getting it wrong can result in __loud__ noises followed by __deathly__ slience**. |
+ | * obviously | ||
+ | * you may be surprised how mains earths can and do cause those problems. | ||
+ | * internally | ||
Read and understand the references in the ' | Read and understand the references in the ' | ||
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This page summarises our scopes in terms of their target application domains, who might use them, and where they can be stored. The " | This page summarises our scopes in terms of their target application domains, who might use them, and where they can be stored. The " | ||
- | One way of categorising scopes is by how often we expect to use them, which translates into where they should be stored: | + | One way of categorising scopes is by how often we expect to use them, which translates into where they should be stored |
* electronics test bench: small, robust, easy-to-use scopes for casual use and everyday tasks | * electronics test bench: small, robust, easy-to-use scopes for casual use and everyday tasks | ||
* accessible shelf over the electronics test bench: unique features necessary for specific tasks, but may be large or awkward | * accessible shelf over the electronics test bench: unique features necessary for specific tasks, but may be large or awkward | ||
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| ^Test Bench ^Accessible Shelf ^High Shelf ^Dispose ^Typical spec and examples ^ | | ^Test Bench ^Accessible Shelf ^High Shelf ^Dispose ^Typical spec and examples ^ | ||
- | ^Audio |Kenwood CS4125 |Telequipment DM63 |Metrotest OX8020 | |< | + | ^Audio |Kenwood CS4125 | |Metrotest OX8020 | |< |
- | ^Mechatronics |Kenwood CS4125 |Telequipment DM63 |Metrotest OX8020 | |<10MHz, 50mV-50V, - motors, actuators, machines | | + | ^Mechatronics |Kenwood CS4125 | |Metrotest OX8020 | |<10MHz, 50mV-50V, - motors, actuators, machines | |
- | ^::: |Agilent 54621 | |Topward 7042 | |::: | | + | ^::: |Agilent 54621 | | | |::: | |
- | ^Digital |Agilent 54621 |Telequipment DM63 |Topward 7042 | |%%< | + | ^Digital |Agilent 54621 |IsoTech ISR-1014 |
^::: | |Tektronix 2245 | | |::: | | ^::: | |Tektronix 2245 | | |::: | | ||
- | ^::: | |IsoTech ISR-1014 | | |::: | | ||
^Signal Integrity | |Tektronix 2245 | | |> | ^Signal Integrity | |Tektronix 2245 | | |> | ||
^::: | |IsoTech ISR-1014 | | |::: | | ^::: | |IsoTech ISR-1014 | | |::: | | ||
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=== Location: Accessible Shelf Above Test Bench=== | === Location: Accessible Shelf Above Test Bench=== | ||
- | | ^IsoTech ISR-1014 ^Tektronix 2245 ^Telequipment DM63 ^ | + | | ^IsoTech ISR-1014 ^Tektronix 2245 ^ |
- | ^Location |Test bench shelf|Test bench shelf, to reduce chance of accidental damage | + | ^Location |Test bench shelf|Test bench shelf, to reduce chance of accidental damage |
- | ^Domain |Medium speed digital, signal integrity |Medium speed digital, signal integrity | + | ^Domain |Medium speed digital, signal integrity |Medium speed digital, signal integrity | |
- | ^Specification |100MHz, analogue, **4 channel**, OSD |100MHz, analogue, **4 channel**, OSD |50MHz, **1mV/ | + | ^Specification |100MHz, analogue, **4 channel**, OSD |100MHz, analogue, **4 channel**, OSD | |
- | ^::: |Autosetup |Autosetup | + | ^::: |Autosetup |Autosetup | |
- | ^::: |Manual time/ | + | ^::: |Manual time/ |
- | ^Condition |Fully functional|Fully functional | + | ^Condition |Fully functional|Fully functional | |
- | ^::: | |Plan on replacing X/Y mains capacitors plus electrolytics | + | ^::: | |Plan on replacing X/Y mains capacitors plus electrolytics | |
- | ^::: | |May need to replace calibration battery | + | ^::: | |May need to replace calibration battery | |
- | ^Comments |**First choice** fast scope |**First choice** fast scope |**Sensitive**, | + | ^Comments |**First choice** fast scope |**First choice** fast scope | |
- | ^::: |Equivalent to the Tek 2245, but softbutton menus slightly less suitable for casual use |Move "soft knobs" in both directions, including after autosetup | + | ^::: |Equivalent to the Tek 2245, but softbutton menus slightly less suitable for casual use |Move "soft knobs" in both directions, including after autosetup | |
- | ^::: |Small size/weight |Medium size/ | + | ^::: |Small size/weight |Medium size/weight | |
- | ^::: | |**OUT OF ACTION**. //Do NOT use//. An unknown person " | + | ^::: | |**OUT OF ACTION**. //Do NOT use//. An unknown person " |
- | ^USP |Fast, 4 channels |Fast, 4 channels, excellent triggering, standard controls | + | ^USP |Fast, 4 channels |Fast, 4 channels, excellent triggering, standard controls | |
- | ^ |{{ : | + | ^ |{{ : |
=== Location: High Shelf === | === Location: High Shelf === | ||
- | | ^Topward 7042 ^Metrotest OX8020 ^ | + | | ^Metrotest OX8020 ^ |
- | ^Location | + | ^Location |High shelf, for when Kenwood CS4215 insufficient | |
- | ^Domain | + | ^Domain |Audio, mechatronics | |
- | ^Specification | + | ^Specification |20MHz, **1mV/ |
- | ^::: |**Dual timebase** | + | ^::: |Dual timebase | |
- | ^::: |Standard controls | + | ^::: |Limited DSO features | |
- | ^::: | |Manual voltage and time cursors | | + | ^::: |Manual voltage and time cursors | |
- | ^::: | |Prints HPGL/HP-PCL to centronics/ | + | ^::: |Prints HPGL/HP-PCL to centronics/ |
- | ^Condition | + | ^Condition |Fully functional | |
- | ^::: | |**UI a little odd**; dim lights indicate important settings | | + | ^::: |**UI a little odd**; dim lights indicate important settings | |
- | ^Comments | + | ^Comments |**On loan** from Lee Wiltshire |
- | ^::: |**Service and operation manual** | + | ^::: |Similar to Kenwood CS4215, Topward 7042 | |
- | ^::: |Lightweight | + | ^::: |Would be best low-end scope, except for awkward UI | |
- | ^::: |See also Kenwood, Metrotest | | | + | ^USP |Sensitive, printing | |
- | ^USP |Small, medium speed, easy |Sensitive, printing | | + | ^ | {{ : |
- | ^ | + | |
=== For Disposal === | === For Disposal === | ||
- | Since they were either faulty or a pain to use, and we had better scopes with these features, in February 2019 we disposed of these scopes: Wavetek 9020, Gould OS300, Tek TDS340, Schlumberger 5602.C, Hameg HM203. | + | Since they were either faulty or a pain to use, and we had better scopes with these features, in February 2019 we disposed of these scopes: Wavetek 9020, Gould OS300, Tek TDS340, Schlumberger 5602.C, Hameg HM203. |
+ | |||
+ | To make more room and to reduce the equipment that needed to be moved to the new premises, in October 2020 we disposed of the Tektronix DM63 and the Topward 7042. | ||
If you want to see their features, look at an earlier revision of this page. | If you want to see their features, look at an earlier revision of this page. | ||
+ | |||
+ | ==== Current Scope Location ==== | ||
+ | |||
+ | (this will be updated after the move) | ||
+ | |||
+ | {{ : | ||
+ | {{ : | ||
+ | |||
+ | |||
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