Waltron 6051 Total Hardness Analyzer

Automatic titrimetric hardness analyzer for ppm-level total or carbonate hardness — reagent-dependent ranges spanning about 0.22–534 ppm, ~3-minute cycles, 0/4–20 mA plus relays, and compact wall-mount packaging for softener and utility water control.

Key advantages

Titrimetric hardness — Total or carbonate hardness in °dH, °f, mg/l, or ppm via reagent packs.
Wide reagent ranges — OEM catalog spans about 0.22–2.14 ppm up to 53.4–534 ppm (reagent-dependent).
~3 min cycle — Automatic operation; OEM states no calibration necessary for normal use.
I/O — 0/4–20 mA measured signal; up to 4 potential-free relays; removable SD card for last-100 results.
Compact install — About 23.6×15×8.3 in; ~4.8 kg without enclosure; IP43 open wall / IP54 enclosure options.

Typical applications

Softener breakthrough and utility hardness control.
Boiler makeup / process water hardness automation.
Sites replacing manual titration with online titrimetric readout.

Selection guide

Reagent / range — Match reagent kit to expected hardness band (OEM lists many packs).
Enclosure — Open wall IP43 vs enclosed IP54.
Power — OEM lists 85–264 VAC, 47–63 Hz on request.
Interferences — Confirm Fe/Cu/Al/Mn and acid capacity against OEM sample limits.

Common mistakes

Confusing this with the 3151 colorimetric calcium hardness analyzer — 6051 is titrimetric total/carbonate hardness.
Ignoring sample clarity — OEM requires clear, colorless sample free of solids and gas bubbles.
Exceeding sample pressure — OEM inlet 0.5–5 bar (recommend 1–2 bar); outlet atmospheric.

When to RFQ / what to tell us

Hardness range / reagent preference; enclosure; power.
Sample conditions and interference profile.
Quantity and ship-to country.

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Specs

Spec	Value
SKU	782062
Brand	Waltron
Model	6051
Product type	Online titrimetric hardness analyzer
Parameter	Total hardness / alkalinity (carbonate)
Technology	Titrimetric
Range(s)	Reagent-dependent ≈0.22–534 ppm (OEM catalog)
Accuracy	±5% of measuring range
Reproducibility	±2.5% of measuring range
Cycle time	≈3 minutes (hardness-dependent)
Analog outputs	0/4–20 mA
Relays	Up to 4; max 250 VAC/VDC 4 A
Ambient	5–55 °C
Sample	5–40 °C; 0.5–5 bar inlet; pH 4–10
Power	85–264 VAC, 47–63 Hz (on request)
Protection	IP43 open wall; IP54 enclosure
Size / weight	≈60×38×21 cm; ≈4.8 kg without enclosure
Maintenance (OEM)	Six-month cleaning/maintenance kit

Documents

FAQ

Q: Total hardness or calcium-only? A: 6051 is titrimetric total/carbonate hardness; for colorimetric calcium hardness see Waltron 3151.

Q: How often does it analyze? A: OEM cites about 3 minutes per cycle depending on hardness.

Q: What should I send for a quote? A: Expected hardness band, enclosure, power, quantity, ship-to.