Weltech Digital Hydrometer

Immediately identifies sources of damage and bruising
Weltech Digital Hydrometer

Key Features

How It Works
The Weltech Digital Hydrometer automatically and quickly calculates the dry matter content, starch percentage, underwater weight and specific gravity of potatoes using the weight in water method. It is used extensively throughout the potato industry by producers of all types of potato products.

Key Features

  • Dry matter content, starch percentage, underwater weight and specific gravity
  • Instant results – does not require a precisely-weighed sample; measures all potato dry matters
  • Easy to use – static unit, needs only a small water container (c.40cm deep); push-button control
  • Precise – digital read-out; accurate to +/- 0.3%; easy self-calibration (using a known test weight)
  • Data storage – internal memory for up to 5000 time and date stamped weights
  • 2 models – with or without USB data download facility
  • Standard or French fry dry matter testing

2 Versions available

Standard unit: range 1.5-6Kg potatoes (must not exceed
Standard + USB data output
USB output: range 1.5-6Kg potatoes (must not exceed 10Kg)
All models include sample basket with suspension chain, rechargeable battery (up to 20 hours life), battery charger and strong carry case.
All models are suitable for standard and French fry dry matter testing

Which digital hydrometer model should you buy?

The instrument measures all potato dry matters in a sample of up to 6Kg of potatoes. To download data, we recommend the version with USB port and memory stick (thumb drive).

How to use the Weltech Digital Hydrometer

Simple button presses take the weight and display the data.

Full Details and Specifications

Weltech Hydrometer Range
Hydrometer Product code Weight range
1.5 - 6Kg
Must not exceed 10Kg
Standard + USB
1.5 - 6Kg
Must not exceed 10Kg
Technical Specifications
Dimensions Weight Accuracy Resolution Memory Data output Power
Weigher: 170 x 140 x
Case: 450 x 130 x 360mm
Weigher: 1.5Kg
w/ carry case:
0.01 scale
5000 individual weights
Data stored if power off or batteries
XML file
Readable in
(USB version
Internal rechargeable
Battery life: 3-4 years
Battery and charger information
Battery charger: Input 230v, 50Hz, 10W; Output 12V, 300mA, 3.6VA; c.12 hour re-charge time; display has charge level indicator; Charge duration: up to 15 hours; Battery life: 3-4 years

NB. The Weltech Dry Matter Weigher is NOT waterproof

Water container Water Operating conditions
356mm dia. x 400mm deep
Clean metal or plastic
Basket and sample must be fully immersed
Clean water
c.15°C / 60°F
-30 to 50°C up to 95% RH
(Avoid sudden changes that can
cause condensation)