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Appendix C
5/20/2009
20
12.
Maintenance Schedule for the TOC5000/5000A
12.1
Daily
:
12.1.1 Check liquid level in humidifier. Add DHOH to top line if level is
too low. Keep level between top and bottom scored lines on vessel.
12.1.2
Check paper supply if using either instrument in Stand Alone
Mode.
12.1.3
Make sure that the liquid in the IC pot is bubbling once the furnace
is on. Lack of bubbling means a leak is present.
12.1.4
Main gas pressure setting @ 4.5 kg/cm
2
.
12.1.5
Carrier gas setting @ 150 cc.
12.1.6
Sparge gas setting @ ~30-60 cc when in use.
12.1.7
Check the level of the rinse container.
12.1.8
Carrier gas pressure. Use Ultra Zero grade Air from Airgas or
comparable grade. UZ Air is a synthetic blend containing 20-22%
oxygen, < 1 ppm CO + CO
2
combined, < 2% H
2
O, < 0.1% THC.
12.2
Monthly
, approximately or after 15-18 analytical batches:
12.2.1
Consumables parts list:
12.2.1.1
PN 017-42801-01 TC catalyst, regular
sensitivity
12.2.1.2
PN 036-11209-84 Black o-rings,
injection port; 5/pk
12.2.1.3
PN 036-11408-84 Teflon o-rings
(white), 5/pk
12.2.1.4
PN 630-01565-00 injection port needle
12.2.1.5
PN 638-41323-00 TC combustion tube
12.2.1.6
PN 220-91101-00 syringe plunger
w/tip
12.2.1.7
PN 630-00105-01 platinum screens,
2/pk
12.2.1.8
PN 630-02674-01 mist trap filter ball
12.2.1.9
PN 035-62994-03 Teflon ferrules,
TOC5000 only
12.2.1.10 PN 630-00707-00 cooling coil,
TOC5000 only
12.2.1.11 PN 200-91532-02 printer paper
12.2.1.12 PN 638-41314-00 cooling coil,
TOC5000A only
12.2.1.13 PN 638-41284-00 ASI sampling needles
12.2.1.14 PN 630-01566-00 Teflon coated o-ring
12.2.1.15 PN 630-00635-01 KHP, primary std
12.2.1.16 PN 630-00962-01 Na
2
CO
3
, primary std
12.2.1.17 PN 630-00963-01 NaHCO3, primary
std