HF Scientific M100+ Laboratory Turbidimeter

Benchtop nephelometric turbidimeter for verifying online meters and routine lab NTU work — auto-ranging 0–4000 NTU, color touchscreen, and USB logging, in EPA 180.1 white-light or ISO 7027 infrared versions.

Key advantages

Auto-range 0–4000 NTU — Nephelometric below 1000 NTU; ratio method above 1000 NTU.
Method-matched optics — White-light 28060 (USEPA 180.1) or infrared 28061 (ISO 7027).
Lab-grade resolution — Selectable down to 0.0001 NTU at low readings; response ≤3 s class.
Touchscreen + USB — Color UI with calibration alert; USB for logged data, cal records, and firmware.
Ready kit — Ships with ProCal standards set, two cuvettes with light-shield caps, and wall adapter (per OEM ordering notes).

Typical applications

Grab-sample checks against MTOL+ or other online turbidimeters.
Plant lab compliance and process troubleshooting NTU work.
Research / analytical measurements across low to high turbidity.
Training and method verification with ProCal primary standards.

Selection guide

Optics — White light 28060 vs infrared 28061 to match the online meter / method.
Standards — Confirm ProCal kit (39940 white / 39941 IR) or individual standards.
Cuvettes — Spare 28×70 mm packs 50051 / 50052; lamp assemblies by optics type.
Environment — Operating 1–40 °C; static (non-flowing) samples for published accuracy.

Common mistakes

Pairing an infrared lab unit against an EPA 180.1 white-light online meter without method alignment.
Expecting flowing-sample accuracy — OEM accuracy/repeatability are for static samples.
Using dirty or scratched cuvettes at sub-0.1 NTU — optical path condition dominates low-end error.
Skipping the calibration-alert prompt cadence in high-throughput labs.

When to RFQ / what to tell us

White light 28060 vs infrared 28061.
Spare ProCal / cuvettes / lamp needs.
Quantity and ship-to country.

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Specs

Spec	Value
SKU	47540
Brand	HF Scientific (Watts)
Model	M100+
Product type	Laboratory turbidimeter
Range	Auto-ranging 0–4000 NTU
Measurement	Nephelometric <1000 NTU; ratio >1000 NTU
Accuracy	2% of reading or ±0.02 NTU below 40 NTU (greater); 5% above 40 NTU
Repeatability	≤±1% of reading or ±0.02 NTU (greater); static samples
Resolution	Selectable up to 0.0001 NTU
Response	≤3 seconds
Sample size	30 mL (27 mL minimum)
Light source	White light tungsten (28060) or IR 860 nm LED (28061)
Outputs / data	USB (log download, firmware)
Operating temp	1–40 °C
Size / weight	≈10.75 × 10 × 3.75–4.75 in; about 1.3–2.5 kg class per literature

Documents

FAQ

Q: How does M100+ relate to MTOL+? A: M100+ is the lab instrument OEM positions for verifying online meters such as MTOL+.

Q: White light or infrared? A: Match the method: 28060 for EPA 180.1; 28061 for ISO 7027.

Q: What should I send for a quote? A: Optics model, spare standards/cuvettes, quantity, ship-to.