Difference between revisions of "Panel Meter"

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[[File:Voltmeter.png|thumb|Illustration of the display, showing the value <code>0.314</code>]]
 
[[File:Voltmeter.png|thumb|Illustration of the display, showing the value <code>0.314</code>]]
  
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A digital '''panel meters''' is part of [[The Analog Thing]]. The striking display is located in the lower right on the upper board and a central part of the board
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The '''panel meter''' is the LCD display unit located in the lower right on the upper PCB.
  
 
== Usage ==
 
== Usage ==
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The Panel Meter is an instrument which is used as voltmeter in several cases and
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Depending on the position of the <code>MODE SELECTOR</code> knob, the '''panel meter''' is used to monitor either values or OP-TIMEs (operation times):
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depends on the switch [[Modes|mode setting (operation mode)]]. In mode COEFF the coefficients can be
 
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setup with the eight potentiometers while the COEFFICIENT switch chooses one of the eight
 
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COEFFs which value is displayed on the voltmeter. This allows an easy setup.
 
  
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In mode REP or REPF the current OP TIME value is shown or can be changed with control via
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=== Monitoring Values ===
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the voltmeter. In all other positions except OFF the voltmeter shows a voltage (or value) which
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With the <code>MODE SELECTOR</code> knob in the <code>COEFF</code>, <code>MINION</code>, <code>IC</code>, <code>OP</code> or <code>HALT</code> positions, the panel meter displays values numerically in the unit range -1 to 1.
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can be feeded into the OUT jack U on the front panel with a patch cable to a specific input or
 
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output.
 
  
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== Technical details ==
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* With the <code>MODE SELECTOR</code> knob in the <code>COEFF</code> position, the panel meter displays the output value of the <code>COEFF</code> potentiometer selected using the <code>COEFFICIENT SELECTOR</code>. This allows setting the values of coefficient potentiometers to their desired values.
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* The display is analog but digital, in order to be cheap (price around 5 Euro). The instrument is a <code>PM438</code> [https://www.ett-online.de/Werkstatt/Messwerkzeug/Sonstige-Messgeraete/Panel-Meter-PM-438-digital-mit-3-5-stellige-LC-Anzeige.html][https://www.jameco.com/Jameco/Products/ProdDS/108388.pdf] and normally shows the voltage on the output channel <code>U</code>.
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* With the <code>MODE SELECTOR</code> knob in the <code>MINION</code>, <code>IC</code>, <code>OP</code> or <code>HALT</code> positions, the panel meter displays the value patched into the <code>U</code> socket in the <code>OUTPUT JACKS</code> section. This allows monitoring the values of arbitrary positions on the patch panel.
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* The instrument can show bipolar voltages (i.e. positive and negative values), i.e. it can show values covering the [[Machine Units]].
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* Actually the voltmeter shows the voltage (max ±10V) just divided by 10. Values are normally always smaller then +1 (or bigger then -1, respectively). The leading zero (The <code>0</code> in <code>0.123</code>) is omitted in the display, so numbers start with a dot.
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=== Monitoring OP-TIMEs ===
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With the <code>MODE SELECTOR</code> knob in the <code>REP</code> or <code>REPF</code> positions, the panel meter displays the current <code>OP TIME</code>, which can be changed by turning the <code>OP-TIME POTENTIOMETER</code>.
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* With the <code>MODE SELECTOR</code> knob in the <code>REP</code> position (i.e., in repeat mode), the <code>OP TIME</code> is shown in the 0 to 10 second range.
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* With the <code>MODE SELECTOR</code> knob in the <code>REPF</code> position (i.e., in repeat fast mode), the <code>OP TIME</code> is shown in the 0 to 100 millisecond range.
  
 
[[Category:Components of The Analog Thing]]
 
[[Category:Components of The Analog Thing]]

Latest revision as of 13:31, 12 September 2021

Illustration of the display, showing the value 0.314

The panel meter is the LCD display unit located in the lower right on the upper PCB.

Usage

Depending on the position of the MODE SELECTOR knob, the panel meter is used to monitor either values or OP-TIMEs (operation times):

Monitoring Values

With the MODE SELECTOR knob in the COEFF, MINION, IC, OP or HALT positions, the panel meter displays values numerically in the unit range -1 to 1.

  • With the MODE SELECTOR knob in the COEFF position, the panel meter displays the output value of the COEFF potentiometer selected using the COEFFICIENT SELECTOR. This allows setting the values of coefficient potentiometers to their desired values.
  • With the MODE SELECTOR knob in the MINION, IC, OP or HALT positions, the panel meter displays the value patched into the U socket in the OUTPUT JACKS section. This allows monitoring the values of arbitrary positions on the patch panel.


Monitoring OP-TIMEs

With the MODE SELECTOR knob in the REP or REPF positions, the panel meter displays the current OP TIME, which can be changed by turning the OP-TIME POTENTIOMETER.

  • With the MODE SELECTOR knob in the REP position (i.e., in repeat mode), the OP TIME is shown in the 0 to 10 second range.
  • With the MODE SELECTOR knob in the REPF position (i.e., in repeat fast mode), the OP TIME is shown in the 0 to 100 millisecond range.
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