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Alpha Omega Instruments
Alpha Omega Instruments Series 3520 Portable Trace Oxygen Analyzer
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AOI Series 3520: portable ppm O₂; 0–10 to 0–20,000 ppm; NiCad; no analog out. RFQ.
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RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
Single ranges 0–10, 0–50, 0–100, 0–200, 0–500, 0–1,000, 0–5,000, 0–10,000, 0–20,000 ppm O₂
Accuracy
±1% of full scale
Supply
Eight AA rechargeable NiCad batteries with built-in universal AC charger
Sensor type
Long-life ambient-temperature electrochemical; optional CO₂-resistant sensor
Linearity
±1% of full scale
Response Time
90% of full scale <10 seconds typical
Fits portable spot-check trace oxygen where you need an Alpha Omega Instruments Series 3520. Battery-powered analyzer with single ranges from 0–10 to 0–20,000 ppm O₂, ±1% of full scale accuracy, typical response under 10 seconds to 90% FS, eight AA rechargeable NiCad cells with built-in charger, and no analog output (spot-check use).
Key advantages
- Ranges — Single 0–10 to 0–20,000 ppm O₂
- Accuracy — ±1% of full scale
- Form — Portable; 8× AA NiCad + charger
- Response — 90% FS <10 s typical
- Output — None (portable spot-check)
Typical applications
- Field ppm O₂ checks.
- Spot inerting verification.
- Portable QC sampling.
Selection guide
- Range code
- CO₂-resistant sensor
- Sample 0.5–1.0 L/min
Common mistakes
- Expecting 4–20 mA.
- Air leaks at ppm.
- Dead batteries in field.
When to RFQ / what to tell us
- Range.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 45775 |
| Brand | Alpha Omega Instruments |
| Model | Series 3520 |
| Product type | Portable Oxygen Analyzer |
| Measuring range | Single ranges 0–10, 0–50, 0–100, 0–200, 0–500, 0–1,000, 0–5,000, 0–10,000, 0–20,000 ppm O₂ |
| Accuracy | ±1% of full scale |
| Linearity | ±1% of full scale |
| Response time | 90% of full scale <10 seconds typical |
| Sensor type | Long-life ambient-temperature electrochemical; optional CO₂-resistant sensor |
| Supply voltage | Eight AA rechargeable NiCad batteries with built-in universal AC charger |
| Analog output | None (portable spot-check analyzer) |
| Sample flow | 1.0–2.0 SCFH (0.5–1.0 L/min); 0.1–1.5 psig |
Documents
FAQ
Q: Analog out? A: None—portable spot-check.
Q: Power? A: Eight AA NiCad with charger.
Q: What should I send for a quote? A: Range, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | Single ranges 0–10, 0–50, 0–100, 0–200, 0–500, 0–1,000, 0–5,000, 0–10,000, 0–20,000 ppm O₂ |
| Accuracy | ±1% of full scale |
| Supply | Eight AA rechargeable NiCad batteries with built-in universal AC charger |
| Sensor type | Long-life ambient-temperature electrochemical; optional CO₂-resistant sensor |
| Linearity | ±1% of full scale |
| Response Time | 90% of full scale <10 seconds typical |
| Analog Output | None (portable spot-check analyzer) |
| Sample Flow | 1.0–2.0 SCFH (0.5–1.0 L/min); 0.1–1.5 psig |
| Operating Temperature | 40° to 104°F (5° to 40°C) |
| Enclosure | Polycarbonate NEMA 1; 1/4 in stainless steel compression fittings |