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Waltron
Waltron 3151 Calcium Hardness Analyzer
Quote on request
No online payment · add lines to RFQ BOM
Online colorimetric Ca hardness; 0–250/1000 ppb; auto cal. RFQ + selection help.
Download datasheet PDF
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Key parameters
Accuracy
+/-5 ppb or +/-3% of full scale (product sheet)
Type
Waltron 3151 online calcium hardness analyzer (colorimetric chemistry)
Ranges
0-250 ppb and 0-1000 ppb calcium hardness
Sample Streams
1 to 2 streams; grab-sample capability
Cycle Time
About one reading every 20 minutes adjustable; response about 12 minutes batch
Outputs Alarms
4-20 mA (galvanic isolator option) or 0-5 V; 2 or 4 configurable alarms
Fits online calcium hardness monitoring where you need a Waltron 3151 colorimetric analyzer with 0–250 or 0–1000 ppb ranges and automatic calibration/validation.
Key advantages
- Ranges — 0–250 ppb and 0–1000 ppb calcium hardness
- Accuracy — ±5 ppb or ±3% of full scale (product sheet)
- Streams — 1 to 2 streams; grab-sample capability
- Automation — Automatic calibration and validation (QA/QC)
- Enclosure — IP65 / NEMA 4X stainless; about 24×15×8.5 in; ~17 kg
Typical applications
- Softener breakthrough and low-level Ca hardness in ultrapure/boiler makeup.
- Online colorimetric hardness with grab-sample checks.
- Panels needing NEMA 4X stainless analyzer enclosures.
Selection guide
- Range — 0–250 vs 0–1000 ppb
- Streams — Single vs dual; grab-sample use
- Outputs / alarms — 4–20 mA or 0–5 V; 2 or 4 alarms
- Sample — 100–500 ml/min atmospheric; 5–55 °C
Common mistakes
- Expecting continuous optical DO-style response — cycle is about one reading ~20 min adjustable.
- Ignoring reagent logistics for colorimetric chemistry.
- Pressurized sample without proper conditioning to atmospheric.
When to RFQ / what to tell us
- Range and stream count.
- Output/alarm options; sample conditions.
- Quantity and ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 141598 |
| Brand | Waltron |
| Model | 3151 Hardness Analyzer |
| Product type | Hardness Analyzer |
| Type | Waltron 3151 online calcium hardness analyzer (colorimetric chemistry) |
| Ranges | 0-250 ppb and 0-1000 ppb calcium hardness |
| Accuracy | +/-5 ppb or +/-3% of full scale (product sheet) |
| Sample streams | 1 to 2 streams; grab-sample capability |
| Cycle time | About one reading every 20 minutes adjustable; response about 12 minutes batch |
| Outputs / alarms | 4-20 mA (galvanic isolator option) or 0-5 V; 2 or 4 configurable alarms |
| Calibration | Automatic calibration and validation (QA/QC) |
| Enclosure | IP65 / NEMA 4X stainless; about 24 x 15 x 8.5 in (60 x 38 x 21 cm); about 17 kg |
| Power / sample | 110-220 VAC; sample 100-500 ml/min atmospheric; sample temp 5-55 C |
Documents
FAQ
Q: What ranges are offered? A: 0–250 ppb and 0–1000 ppb calcium hardness.
Q: Does it auto-calibrate? A: Yes — automatic calibration and validation (QA/QC) per product sheet.
Q: What should I send for a quote? A: Range/streams/outputs, sample conditions, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | +/-5 ppb or +/-3% of full scale (product sheet) |
| Type | Waltron 3151 online calcium hardness analyzer (colorimetric chemistry) |
| Ranges | 0-250 ppb and 0-1000 ppb calcium hardness |
| Sample Streams | 1 to 2 streams; grab-sample capability |
| Cycle Time | About one reading every 20 minutes adjustable; response about 12 minutes batch |
| Outputs Alarms | 4-20 mA (galvanic isolator option) or 0-5 V; 2 or 4 configurable alarms |
| Calibration | Automatic calibration and validation (QA/QC) |
| Enclosure | IP65 / NEMA 4X stainless; about 24 x 15 x 8.5 in (60 x 38 x 21 cm); about 17 kg |
| Power | 110-220 VAC; sample 100-500 ml/min atmospheric; sample temp 5-55 C |
| Document | Waltron 3151 Calcium Hardness Analyzer product sheet (waltron.net / Waltron Group literature) |