Martin Lishman Ltd
dry matter measurement with the weltech digital hydrometer

Weltech Digital Hydrometer

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Weltech Digital Hydrometer
Key Features
What’s new
How It Works
Specifications

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.

The latest version, the PW4 replaces the older PW2050 model and comes with many new enhancements and features. 

The weltech PW4 hydrometer basket holds potatoes to be dry matter tested
The Weltech PW4 digital hydrometer

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
  • USB export as standard – export batch data in .CSV format to a USB drive for further analysis
  • Standard or French fry dry matter testing

Display all the data you need!

The new 6 inch colour screen gives ample room to display all the data the operator needs without the need to scroll through complicated menus.

A newly designed multi-lingual user interface takes advantage of the large LCD screen making the setup, measuring and analysing process quick and easy. 

On-screen prompts guide the user when setting up the unit, minimising downtime and helping users unfamiliar with the PW4 quickly get up to speed. 

All day battery-life

As the batches keep coming, the PW4 keeps running. The new PW4 comes pre-installed with a high-capacity rechargeable lithium battery, and combined with a newly designed energy-efficient processor, keeps the PW4 running all day long. An accurate battery percentage meter is displayed at the top of the screen to let you know when its time to recharge. 

Everything you need to get weighing

The PW4 comes with a sample basket with suspension chain, pre-installed rechargeable battery, battery charger and strong carry case.

All models are suitable for standard and French fry dry matter testing

Range 1.5-6Kg potatoes (must not exceed 10Kg)

How to use the Weltech Digital Hydrometer

A few simple button presses take the weight and display the data.

Full Details and Specifications

PW4

POT/HYDPW4

Dimensions

Weigher: 170 x 140 x 97cm
Case: 450 x 130 x 360cm

Weight

Weigher: 1.5kg
w/ carry case: 2/14kg

Accuracy

+/- 0.3%

Resolution

0.01 scale reading

Memory

5000 individual weights 
Data stored if power off or batteries removed

Data output

XML file readable in Excel

Power

Internal rechargeable lithium battery

Languages

CE, RoHS, ETL

Water Container

-30 to 50°C up to 95% RH
(Avoid sudden changes that can cause condensation)

Water

Clean water c.15°C / 60°F

Operating Conditions

-30 to 50°C up to 95% RH (Avoid sudden changes that can cause condensation)

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