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| Instrument/Equipment | PMS Task | Frequency | Date of last maintenance |
|---|---|---|---|
| ALKALINITY/pH - Metrohm 794 Basic Titrino Autotitrator | Check 3M KCl level in the electrode, top up if low | Monthly |
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| Check storage solution (Metrohm Storage Solution) level in the electrode storage vial, top up if low | Monthly |
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| Check DI water level in dispensing tip storage vial, top up if low | Monthly |
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| Change out desiccant | When ~50% pink |
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| Check water level in water bath, top up if low | Weekly |
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| BALANCE - Cahn Microbalance | No PMS necessary | - | - |
| BALANCE - Mettler-Toledo XS204 Dual-Balance System | No PMS necessary | - | - |
| BARNSTEAD WATER PURIFICATION SYSTEM | Run water from the DI tank and nanopure outlet for 5 minutes | Weekly | 13 |
| Replace the pre-Barnstead filter under the counter (UTS CM0063) | When discolored |
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| Replace the three pretreatment cartridges | Periodically |
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| Replace the Genpure filter cartridge | Annually or when necessary |
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| Replace the UV lamp | Every two years or when necessary |
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| Replace the 0.2 micron final filter | Annually or when necessary |
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| Replace the two RO membranes (access through the back panel of the RO unit) | Annually or when necessary |
| |
| CARVER PRESSES - Carver 25 Ton Hydraulic Presses | Check hydraulic fluid level in Autopaks - should only be necessary if you have had a large spill and thus removed a significant amount of the fluid - top up with Carver hydraulic fluid (under the sink) | When necessary |
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| CENTRIFUGE - Eppendorf Centrifuge 5810 | No PMS necessary | - | - |
| CHLORINITY - Metrohm 785 DMP Titrino Autotitrator | Check DI water level in the electrode storage vial, top up if low | Weekly |
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| Check DI water level in the dispensing tip storage vial, top up if low | Weekly |
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| Change out desiccant | When ~50% pink |
| |
| CHNS - Thermo FlashEA Elemental Analyzer | Change out magnesium perchlorate in the water trap (if using trap) (the new instrument did not come with a trap installed) | Once a month when in use |
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| COULOMETER - UIC CM5015 Coulometer | No PMS necessary | ||
| FREEZE-DRYER - Labconco FreeZone 12 Freeze Dry System | Check vacuum pump oil level - should be between low and high mark - top up if low | Once a month when in use |
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| Empty the vacuum pump oil mist filter and discard oil | When necessary |
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| Change vacuum pump oil | When dirty |
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| FUME HOODS - Labconco Chemical and Acid Digestion Hoods | Inspect the drains for trash/debris and remove if present. Pour/run water down the drain in fume hood #3 and #4. Pour water down the fume hood #2 drain at the end of an expedition. Fume hood #1 drain is capped. Do not pour water in fume hood #1. | Once an expedition |
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| GC GC2 - Agilent 6890N Gas Chromatograph | Replace gas traps | Every 2 years or when necessary |
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| Replace front inlet septum | When necessary |
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| Replace autosampler tension cord | When needles are getting bent |
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| Replace autosampler syringe plunger | When necessary |
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| Replace autosampler syringe | When necessary |
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| GC NGA1 - Agilent 7890A Gas Chromatograph | No PMS necessary | - | - |
| GC NGA2 - Agilent 7890A Gas Chromatograph | No PMS necessary | - | - |
| HYDROGEN GENERATORS - Parker-Balston | Check water level in the generator(s) in use, top up if low | Weekly |
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| Generator 1 (SRA): Replace "6-month maintenance kit" components | Annually or when necessary |
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| Generator 1 (SRA): Replace "24-month maintenance kit" components | Every few years |
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| Generator 2 (NGAs): Replace "6-month maintenance kit" components | Annually or when necessary | ||
| Generator 2 (NGAs): Replace "24-month maintenance kit" components | Every few years |
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| Generator 3 (NGAs): Replace "6-month maintenance kit" components | Annually or when necessary | ||
| Generator 3 (NGAs): Replace "24-month maintenance kit" components | Every few years |
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| IC - Metrohm 850 Professional Ion Chromatograph | Circulate eluent through the system for one hour | Weekly |
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| Replace soda lime in eluent bottle CO2 scrubbers | When ~50% pink or once a year |
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| Replace inline filters (1 on cation flow path, 3 on anion flow path) | Once an expedition (in the beginning) |
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| Replace anion guard column | Once an expedition (in the beginning) |
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| Replace cation guard column | Once an expedition (in the beginning) |
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| Replace anion column | When necessary |
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| Replace cation column | When necessary |
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| Replace the CO2 suppressor CO2 scrubber cartridge (soda lime) | When ~50% pink |
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| Replace the beads in the CO2 suppressor H2O scrubber cartridge (put old beads in the aft oven at > 140 C on a kimwipe-lined tray and bake back to dark orange color) | When beads lose their color |
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| Replace the autosampler ultrafiltration membrane | Every 200 samples or when necessary |
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| Replace all peristaltic pump tubing for autosampler | Periodically |
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| Replace all peristaltic pump tubing for suppressor | Periodically |
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| Clean bearings on peristaltic pump for suppressor | Periodically |
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| ICP-OES - Agilent 5110 Inductively Coupled Plasma Optical Emission Spectrometer | Clean the instrument water inlet filter | Periodically |
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| Clean the air inlet filter | Periodically |
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| Clean the water chiller | Periodically |
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| Clean the cone | When necessary |
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| Clean the snout | Periodically |
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| Replace the HR torch | When necessary |
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| Replace the IW torch | When necessary | ||
| Replace the HR nebulizer (CM5228, Agilent G8010-60255) | Periodically or when necessary |
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| Replace the IW nebulizer (CM5228, Agilent G8010-60255) | Periodically or when necessary | ||
| Replace autosampler peristaltic pump tubing | Periodically |
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| Replace "blue" peristaltic pump tubing | Periodically |
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| Replace "white" peristaltic pump tubing | Periodically |
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| OXYGEN SENSOR - AMI Oxygen Analyzer | Replace the sensor (replacement sensor in LO office cabinet) | Every two years |
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| SPECTROPHOTOMETER - Agilent Cary 100 | Replace autosampler peristaltic pump tubing | When necessary |
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| Replace instrument peristaltic pump tubing | When necessary |
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| Replace "Lamp, visible source, Varian #5610021700", CM1217 | Periodically |
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| SRA - Weatherford Source Rock Analyzer | Replace moisture trap contents | Before use |
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| Replace CO2 trap (or contents) | Before use |
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| Replace drierite | Before use |
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