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Three capped replacement sample vials for TN400 turbidity testing.
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Silicone oil for the vial exterior where the turbidity procedure specifies it.
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APERA INSTRUMENTS / AI4202
TN400-S2 supplies three replacement sample vials with caps for Apera turbidity testing. Use them to hold samples for measurement, not as prefilled calibration standards. Confirm the exact meter before ordering for any model other than TN400.
Replace worn sample containers or keep additional vials available for your sampling workflow. The manufacturer supplies this accessory as a three-pack.
The manufacturer photographs show numbered caps. Keep each cap with its corresponding vial and follow the meter manual for vial selection.
A clean, dry vial exterior matters in turbidity measurement. Avoid fingerprints, smudges and scratches on the optical surface.
Alternate manufacturer view showing the numbered vial caps.
CURRENT ITEM: AI4202
These are documented parent-meter workflows, not meters supplied with this accessory. Match the part number and required calibration or vial procedure.
Related workflow
Parent turbidity meter. The meter and other accessories are separate from this order.
Use with TN400 turbidity measurements when you need replacement capped vials. This listing does not include a meter or standards.
For reused sample vials, the TN400 manual directs detergent cleaning inside and outside, repeated distilled or deionized water rinses, then two rinses with the next sample before filling and closing.
Follow the TN400 procedure for gentle mixing and a 2 to 5 minute wait for bubbles to clear. This sample preparation is different from handling sealed nonzero calibration standards.
Before ordering, confirm TN400-S2 and your meter model. This is a three-vial accessory pack, not the six-vial set described in current parent-meter kit documentation.
Follow the meter manual for vial cleaning, cap matching, sample preparation and exterior oil treatment. Handle the cap and base to avoid fingerprints on the vial wall.
For warranty information or return authorization, contact Blue Tiger Scientific before sending any item. Do not assume that the parent meter warranty applies to a separately purchased accessory.
One pack contains three sample vials with caps. The three-pack is the order unit, not one individual vial.
Yes. Apera identifies the TN400 on the exact product page title and lists TN400-S2 among the TN400 accessories. For another meter, confirm the exact replacement part rather than assuming universal cuvette fit.
No. These are replacement sample vials, not prefilled calibration standards. Order the appropriate calibration solutions separately.
No. TN400-S2 is a three-pack. The current TN400 manual lists T500-3 as a six-vial replacement set, so do not use that pack quantity as the contents of this listing.
Follow the TN400 manual: clean inside and outside with detergent, rinse repeatedly with distilled or deionized water, then rinse twice with the sample before filling and closing the cap. Do not apply this interior-cleaning procedure to sealed nonzero standard vials.
Yes. Keep numbered caps matched to the corresponding vials. The meter manual gives additional vial-selection guidance for low-turbidity work; follow it rather than treating every vial as interchangeable for every test.
No. The documented oil procedure is for the outside surface of the capped vial. Use a small drop, distribute it with a lint-free cloth and remove excess as directed by the meter manual.
Check that the vial is clean, dry on the outside and free of fingerprints or damaging scratches. Follow the meter procedure for sample mixing, bubble removal, vial positioning and closing the meter cover.
Each whole card opens the complete official PDF. Parent-meter and regional documents are labelled by scope; do not transfer a host’s specifications or warranty to a separately supplied accessory.
Parent-meter instructions, v5.5. Vial preparation, exterior oil application and calibration procedures; not a standalone accessory datasheet.
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