Differences between revisions 2 and 15 (spanning 13 versions)
Revision 2 as of 2023-12-14 22:27:05
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Revision 15 as of 2024-02-29 16:48:52
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Deletions are marked like this. Additions are marked like this.
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= Regular maintenance =  == Regular maintenance ==
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|| Item || Description || Frequency || Cost per period || ELOG Link ||
|| N2 gas cylinders || || || || ||
|| Item || Description || Frequency || Cost per period ||
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|| Nitrogen Cylinders || Airgas Part #:NI 300|| 8 Cylinders per month || $159.56/Month ||
|| Zero-Grade Air Cylinders|| Airgas Part #:UZI300 || 4 Cylinders each Vent || $164.67/Cylinder ~ $658.68/Vent ||
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= Semi-regular maintenance =
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We know someday we will need replacement. == Semi-regular maintenance ==

We know someday we will need replacement. Maintenance records should be kept in an independent page
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|| Oplev lasers || Lumentum xxxx || Link here || ??? || ||
|| UPS batteries || || Link here || ??? || ||
|| SR560 batteries || || Link here || ??? || ||
|| Oplev lasers || Lumentum 1103P || [[https://www.edmundoptics.com/p/model-1103p-2mw-linear-polarization-lumentum-hene-laser/18816/|Lumentum 1103P]] || ~ $900 - $1000 || ||
|| UPS batteries || RBC55 (For reference, PO #S625443) || [[https://www.bhphotovideo.com/c/product/1117506-REG/apc_rbc55_replacement_battery_cartridge_55.html| APC Replacement Battery Cartridge]] || ~$420 || ||
|| SR560 batteries || || Link here || ??? || ||
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= Irregular maintenance =  == Irregular maintenance ==
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|| SR785 || || || || || || SR785 #1 || || || || ||
|| SR785 #2 || CH1 Input A flakey || || || ||
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|| DC supply || KEPCO || || || ||
|| HV supplies || KEPCO || || || ||
|| Yarm LSC DC supply || A 15V KEPCO Broken - replaced with Sorensen. A spare KEPCO in VOPO lab || || || ||
|| Broken Oscilloscope || Tektronix TDS3034B || || https://nodus.ligo.caltech.edu:8081/40m/18050 ||

40m Lab Maintenance

We list regular/semi-regular/irregular maintenance items with cost here.

Regular maintenance

Regular (annual/monthly) costs

Item

Description

Frequency

Cost per period

Storage Area

Nitrogen Cylinders

Airgas Part #:NI 300

8 Cylinders per month

$159.56/Month

Zero-Grade Air Cylinders

Airgas Part #:UZI300

4 Cylinders each Vent

$164.67/Cylinder ~ $658.68/Vent

Semi-regular maintenance

We know someday we will need replacement. Maintenance records should be kept in an independent page

Item

Description

Frequency

Cost per replacement

ELOG Link

Oplev lasers

Lumentum 1103P

Lumentum 1103P

~ $900 - $1000

UPS batteries

RBC55 (For reference, PO #S625443)

APC Replacement Battery Cartridge

~$420

SR560 batteries

Link here

???

Irregular maintenance

Broken instrument, broken HVAC, etc

Item

Description

Last maintenance date

Cost per work

ELOG Link

NPRO

HVAC

SR785 #1

SR785 #2

CH1 Input A flakey

DS345

DC supply

KEPCO

HV supplies

KEPCO

Yarm LSC DC supply

A 15V KEPCO Broken - replaced with Sorensen. A spare KEPCO in VOPO lab

Broken Oscilloscope

Tektronix TDS3034B

https://nodus.ligo.caltech.edu:8081/40m/18050

40m_Maintenance (last edited 2025-07-02 02:26:39 by KojiaraiATligoDOTorg)