Martin Lishman-Weltech Digital Dry Matter Weigher (PW4)

Martin Lishman Weltech Digital Dry Matter Weigher (PW4)

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  • Martin Lishman-Weltech Digital Dry Matter Weigher (PW4)
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  • Martin Lishman-Weltech Digital Dry Matter Weigher (PW4)

Martin Lishman Weltech Digital Dry Matter Weigher (PW4)

The Martin Lishman Weltech Digital Dry Matter Weigher (PW4) automatically calculates the dry matter content, starch percentage 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.

Key Features:

  • Suitable for standard or French Fry production - testing up to 6Kg samples
  • Instant results - does not require a precisely-weighed potato sample
  • Precise and easy to use - needs only a small water container (40cm deep)
  • Data storage - memory for up to 5000 time and date stamped weights
  • USB export as standard - export batch data in to a USB drive for further analysis
  • Large colour display - with multi-lingual user interface for easy operation
  • Redesigned button panel - makes setup and measuring processes quick and easy
  • All day battery-life - pre-installed high-capacity rechargeable lithium battery
  • Basket and chain included - plus battery charger with choice of plugs  
Weltech PW4 with potatoes

Weltech PW4 with potatoes

Display all the data you need!

The new 6-inch color 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 analyzing process quick and easy.

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

Weltech Digital Hydrometer screen

Weltech Digital Hydrometer screen

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 it's time to recharge.

Everything you need to get weighing

Weltech hydrometer kit

Weltech hydrometer kit

  • The PW4 comes with a sample basket with a 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)

(Click picture to watch video)Weltech PW4 Digital Dry Matter Weigher

Weltech PW4 Digital Dry Matter Weigher

Weltech PW4 Digital Dry Matter Weigher

Full Details and Specifications


(Click to enlarge)Weltech Hydrometer Range

Weltech Hydrometer Range

(Click to enlarge)Weltech Hydrometers Technical Specifications

Weltech Hydrometers Technical Specifications

(Click to enlarge)Weltech Hydrometers Requirements

Weltech Hydrometers Requirements

  • Dimensions- Weigher:170mm wide x 140mm high without handle and hook/317mm high with handle and hook x 97mm deep; Case: 45cm wide x 13cm deep x 36cm high
  • Weight of unit: 1.5Kg; (3.14Kg with carry case)
  • Water container required: min. 356mm dia. X 400mm deep; clean metal or plastic. Basket and sample must be fully immersed; Water: Clean water; c.15°C/60°F
  • Accuracy: +/- 0.3 % ; Resolution: 0.001 scale reading
  • Operating conditions: -30 to 50°C; up to 95%RH (avoid sudden changes that could cause condensation)
  • Memory: 5000 individual weights; data stored if power off or batteries removed
  • Data output: XML files readable in Excel
  • Power- Battery: Rechargeable 3.7v lithium. Battery charger: Input 100-240v, 50-60Hz, 0.3A Output 12V, 500mA. 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