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Apera T500-5 Replacement Tungsten Lamp for TN500/TN420 (AI4209) Turbidity Meter Lamp Apera Instruments
Apera T500-5 Replacement Tungsten Lamp for TN500/TN420 (AI4209) Turbidity Meter Lamp Apera Instruments

Apera T500-5 Replacement Tungsten Lamp for TN500/TN420 (AI4209)

$119.00

    T500-5 is Apera’s replacement tungsten-filament lamp for TN500 and TN420 white-light turbidity meters. Match the host model before ordering and follow the meter procedure when replacing and checking the light source.

    • Accessory model: T500-5
    • Manufacturer PN: AI4209
    • Compatible hosts: Apera TN500 / TN420

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APERA INSTRUMENTS / T500-5 / AI4209

Replace the light source.
Keep the right optical system.

T500-5 is Apera’s replacement tungsten-filament lamp for TN500 and TN420 white-light turbidity meters. Match the host model before ordering and follow the meter procedure when replacing and checking the light source.

Manufacturer T500-5 product reference.
Manufacturer T500-5 product reference. Tap or click the image for a larger view.
Choose the right accessory and host meterClick or tap to compare your optionsCompare below — click or tap here to close

Compare the selected product with the related listings below. Check the application, connection and order contents before choosing.

Linked cards open current store listings. Other cards compare configurations; they do not imply current storefront availability.

Match the exact
TN500 or TN420 part.

TN500 and TN420 use the tungsten white-light system identified for this lamp. This is not a universal infrared LED replacement for every Apera turbidimeter.

Older catalogs use TN500-S naming; Apera’s current accessory page identifies this model as T500-5. The manufacturer AI part number remains AI4209.

Replace, check
and return to service.

Turn off the meter and follow its lamp-replacement instructions. Handle the replacement carefully and complete the checks or calibration required by the host procedure before reporting sample results.

The accessory page does not provide additional wattage or lamp-life specifications. Use the exact replacement model rather than assuming generic specifications.

What this order includes.

Order detail Configuration
Product T500-5
Manufacturer part number AI4209
Blue Tiger SKU BTS-AI4209
Order contents One tungsten-filament lamp for TN500 / TN420. Meter and other accessories are separate.

Check the fit
before ordering.

Specification Detail
Accessory model T500-5
Manufacturer PN AI4209
Compatible hosts Apera TN500 / TN420
Type Tungsten-filament lamp
Order unit One replacement part

Match the stated limits and configuration to your procedure. The Product Specifications tab repeats the order details for quick reference.

Compare related products.

Apera TN500 Portable White-Light Turbidity Meter with Data Logging

Apera TN420 Portable White-Light Turbidity Meter

T500-5 buyer questions

Which meters use this part?

Apera identifies T500-5 for TN500 and TN420 turbidity meters.

What is the manufacturer part number?

AI4209; the older workbook name is TN500-S5.

Is a meter included?

No. This is a replacement accessory for an existing compatible instrument.

Can I use a generic replacement?

Use the specified part. Appearance alone does not establish electrical, mechanical or optical compatibility.

What should I do before installation?

Power down the meter, disconnect external power and follow the host manual’s replacement procedure.

Does it fit every Apera turbidity meter?

No universal compatibility is claimed. Confirm TN500 or TN420 and the correct replacement model.

Is this an infrared LED?

No. This is the tungsten-filament lamp for the specified white-light turbidimeters.

What should I check after replacement?

Follow the host manual’s startup checks and any calibration or functional checks required before taking reportable measurements.

Choose the configuration
that fits your work.

Review the order contents and the required host meter and application before ordering. Contact Blue Tiger Scientific if you need help matching the part.

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    T500-5 specifications

    SpecificationDetail
    Accessory modelT500-5
    Manufacturer PNAI4209
    Compatible hostsApera TN500 / TN420
    TypeTungsten-filament lamp
    Order unitOne replacement part

    Ordering information

    SpecificationDetail
    Manufacturer part numberAI4209
    Blue Tiger SKUBTS-AI4209
    Order contentsOne tungsten-filament lamp for TN500 / TN420. Meter and other accessories are separate.

    Manufacturer warranty support is subject to Apera’s terms for the specific product and the cause of the issue. Keep your purchase record and product identification for a support request.

    For setup, compatibility or troubleshooting support, contact Blue Tiger Scientific with the model, order number and a description of the issue.

    Contact Blue Tiger Scientific before returning a product. Return eligibility and instructions depend on the store’s applicable return policy and the condition of the item.

Questions about a product? Ask us here.

email us here: info@bluetigerscientific.com or live chat