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[[File:ACU-RITE_2001003_eBay_lovedabeach_122087858728_Photo_1.jpg|thumb|ACU-RITE 2x Mill D200]]
== Overview ==
Glass scale based digital read out (DRO). It uses a vacuum fluorescent display (VFD) rather than a more modern LED displays.
<pre>2X MILL D200 DOM
PN: 2001003
SN: 99050879 Rev: B</pre>
== Photos ==
<gallery>
File:ACU-RITE_2001003_eBay_lovedabeach_122087858728_Photo_1.jpg
File:ACU-RITE_2001003_eBay_lovedabeach_122087858728_Photo_2.jpg
File:ACU-RITE_2001003_eBay_lovedabeach_122087858728_Photo_3.jpg
File:ACU-RITE_2001003_eBay_lovedabeach_122087858728_Photo_4.jpg
File:ACU-RITE_2001003_eBay_lovedabeach_122087858728_Photo_5.jpg
</gallery>
https://www.ebay.com/itm/122087858728
Taken from eBay seller [https://www.ebay.com/sch/lovedabeach/m.html lovedabeach]'s eBay Item #122087858728.
== Replacement Parts ==
=== Transformer ===
<pre>ENSIGN CORPORATION
2001-900 B
172.9911</pre>
172 is the manufacturer code (Acu-Rite or Ensign?) 9911 is the date code, November 1999. B is the revision level.
Specs:
* Input Power: 115/230VAC ± 20% @ 50/60Hz
* Output #1: 7V minimum ripple valley @ 1.4ADC / 47000uF (± 20%) capacitor with 80% nominal input (92VAC instead of 115VAC), 15V ripple peak @ 450mA with 120% (138VAC instead of 115VAC) input.
* Output #2: 34V minimum @ 115mA DC / 1000uF (± 20%) capacitor with 80% nominal input, no maximum specified.
* typical forward diode drop is expected to be 1V
* thermal fuse on each secondary, if it blows it's permanent.
* external fusing, 0.5A slow blow for 115V operation, 0.25A slow blow for 230V operation.
Transformer pinout:
The bobbin manufacturer and Acu-Rite use different pin mappings. On the bobbin, pin #1 is marked by a notch in the plastic, that pin is also closer to it's adjacent pin than the rest. The bobbin pin numbers are numbered 1-6 then 7-12 clockwise (TODO: from above or below?). In other words, bobbin pins 6 and 7 are across from each other at the same end of the transformer.
{| class="wikitable"
! Bobbin Pin
! Acu-Rite Pin
! Function
|-
| 1
| [NC]
| [NC]
|-
| 2
| 1
| Primary #1 A
|-
| 3
| 2
| Primary #1 B
|-
| 4
| 3
| Primary #2 A
|-
| 5
| 4
| Primary #2 B
|-
| 6
| [NC]
| [NC]
|-
| 7
| 5
| >34V out
|-
| 8
| 6
| >34V out
|-
| 9
| [NC]
| [NC]
|-
| 10
| [NC]
| [NC]
|-
| 11
| 7
| 7-15V out
|-
| 12
| 8
| 7-15V out
|}
* For 115V operation, jumper Primary #1A to Primary #2A as well as Primary #1B to Primary #2B. This puts the primaries in parallel.
* For 230V operation, jumper Primary #1B to Primary #2A. This puts the primaries in series.
== Online Resources ==
[http://www.carlstaehlecorp.com/images/pdf/Acu-Rite%20200M%20Package.pdf Acu-Rite DRO 200M Brochure]
[http://www.acu-rite.com/pdf/manuals/obsolete/DRO200Mmanual.pdf Acu-Rite DRO 200M Reference Manual]
[http://acu-rite.com/site/index.php/support/product-literature/ Manuals & Flyers – ACU-RITE]
[http://acu-rite.com/site/index.php/support/technical-support/ Technical Support – ACU-RITE]
[https://www.heidenhain.com/en_US/service/helpline/ Service: Helpline - HEIDENHAIN]
[http://www.digitalreadoutsystem.com/Acurite/200M.html ACU-RITE DRO 200M | Digital Readout Systems]
[http://www.auto-met.com/acurite/dro_200_repair.htm Acu-rite Digital Readout Repair Page]
== Overview ==
Glass scale based digital read out (DRO). It uses a vacuum fluorescent display (VFD) rather than a more modern LED displays.
<pre>2X MILL D200 DOM
PN: 2001003
SN: 99050879 Rev: B</pre>
== Photos ==
<gallery>
File:ACU-RITE_2001003_eBay_lovedabeach_122087858728_Photo_1.jpg
File:ACU-RITE_2001003_eBay_lovedabeach_122087858728_Photo_2.jpg
File:ACU-RITE_2001003_eBay_lovedabeach_122087858728_Photo_3.jpg
File:ACU-RITE_2001003_eBay_lovedabeach_122087858728_Photo_4.jpg
File:ACU-RITE_2001003_eBay_lovedabeach_122087858728_Photo_5.jpg
</gallery>
https://www.ebay.com/itm/122087858728
Taken from eBay seller [https://www.ebay.com/sch/lovedabeach/m.html lovedabeach]'s eBay Item #122087858728.
== Replacement Parts ==
=== Transformer ===
<pre>ENSIGN CORPORATION
2001-900 B
172.9911</pre>
172 is the manufacturer code (Acu-Rite or Ensign?) 9911 is the date code, November 1999. B is the revision level.
Specs:
* Input Power: 115/230VAC ± 20% @ 50/60Hz
* Output #1: 7V minimum ripple valley @ 1.4ADC / 47000uF (± 20%) capacitor with 80% nominal input (92VAC instead of 115VAC), 15V ripple peak @ 450mA with 120% (138VAC instead of 115VAC) input.
* Output #2: 34V minimum @ 115mA DC / 1000uF (± 20%) capacitor with 80% nominal input, no maximum specified.
* typical forward diode drop is expected to be 1V
* thermal fuse on each secondary, if it blows it's permanent.
* external fusing, 0.5A slow blow for 115V operation, 0.25A slow blow for 230V operation.
Transformer pinout:
The bobbin manufacturer and Acu-Rite use different pin mappings. On the bobbin, pin #1 is marked by a notch in the plastic, that pin is also closer to it's adjacent pin than the rest. The bobbin pin numbers are numbered 1-6 then 7-12 clockwise (TODO: from above or below?). In other words, bobbin pins 6 and 7 are across from each other at the same end of the transformer.
{| class="wikitable"
! Bobbin Pin
! Acu-Rite Pin
! Function
|-
| 1
| [NC]
| [NC]
|-
| 2
| 1
| Primary #1 A
|-
| 3
| 2
| Primary #1 B
|-
| 4
| 3
| Primary #2 A
|-
| 5
| 4
| Primary #2 B
|-
| 6
| [NC]
| [NC]
|-
| 7
| 5
| >34V out
|-
| 8
| 6
| >34V out
|-
| 9
| [NC]
| [NC]
|-
| 10
| [NC]
| [NC]
|-
| 11
| 7
| 7-15V out
|-
| 12
| 8
| 7-15V out
|}
* For 115V operation, jumper Primary #1A to Primary #2A as well as Primary #1B to Primary #2B. This puts the primaries in parallel.
* For 230V operation, jumper Primary #1B to Primary #2A. This puts the primaries in series.
== Online Resources ==
[http://www.carlstaehlecorp.com/images/pdf/Acu-Rite%20200M%20Package.pdf Acu-Rite DRO 200M Brochure]
[http://www.acu-rite.com/pdf/manuals/obsolete/DRO200Mmanual.pdf Acu-Rite DRO 200M Reference Manual]
[http://acu-rite.com/site/index.php/support/product-literature/ Manuals & Flyers – ACU-RITE]
[http://acu-rite.com/site/index.php/support/technical-support/ Technical Support – ACU-RITE]
[https://www.heidenhain.com/en_US/service/helpline/ Service: Helpline - HEIDENHAIN]
[http://www.digitalreadoutsystem.com/Acurite/200M.html ACU-RITE DRO 200M | Digital Readout Systems]
[http://www.auto-met.com/acurite/dro_200_repair.htm Acu-rite Digital Readout Repair Page]