Name: Kern EWJ Compact Laboratory Precision Balance
SKU: 9737
Availability: instock
Rating: 5 (1 reviews)

Kern EWJ Compact Laboratory Precision Balance

Our Price: £458.00 – £557.00 + VAT (£549.60 - £549.60 inc VAT)

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Description

High-quality Precision Balance With Automatic Internal Adjustment

Also With EC Type Approval [M]

· Easy to use: All primary functions have their own key on the keypad
· Automatic internal adjustment, time-controlled every 2 h, guarantees high degree of accuracy and makes the balance independent of its location
· Capacity display: A bargraph display lights up to show how much of the weighing range is still available
· KERN EWJ-H/-M: USB data interface for transferring weighing data to the PC, printer etc.
· KERN EWJ-SM: Cost-effective variant without data interfaces
· KERN EWJ 300-3, 600-2M, 600-2SM: Draught shield standard, Weighing space W×D×H 134×128×80 mm.
· KERN EWJ 300-3H: Large glass draught shield with 3 sliding doors for easy access to the items being weighed

Weighing space W×D×H 155×175×217 mm

Protective working cover included with delivery

Applications: Weighing, Piece Counting, Recipe Function, Percentage Weighing

Calibration: Internal

Interface: RS-232 (not EWJ-SM), USB (not EWJ-SM)

Weighing Units: g, ct, dwt, lb, mo, oz, ozt, tl (HK), tl (Singap., Malays), tl (Tw)

Power Supply: Mains Adaptor 12 V / 2500 mA

Approval: EC-type Approval

SHIPPED FROM GERMANY

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We endeavour to deliver your goods to you as fast as we can. A large percentage of our orders are delivered in 3 - 5 working days (all mainland UK postcodes except IV, AB and KW) but some goods can take longer if they are delivered direct from the manufacturer or if the item is made to order. Please note, IV, AB and KW postcodes and non-mainland UK including Northern Ireland can take longer. Please give us a call if your order is urgent to verify the delivery time or see if a faster delivery is possible (additional costs may apply for larger orders).

The following delivery charges may apply per order:

£15.00 + VAT – Mainland UK
£30.00 + VAT – UK non-mainland incl. N. Ireland (5 – 7 working days)
£40.00 + VAT – Ireland (7 – 10 working days)

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Frequently Asked Questions

Please see below for answers to frequently asked questions.

Are readability and accuracy the same thing?

No, although they are both useful measures of weighing equipment performance. Readability refers to the smallest increment of weight that scales or balances will display. A readability of 0.5g, for example, means the scale would display an item of 10.503g’s weight as 10.5g and an item of 10.805g as 11.0g.

Accuracy is a measure of the possible difference between the displayed weight and an item’s real weight. It is often displayed as a percentage. An accuracy of +/- 1% means the scale could measure 100g as anywhere between 99g and 101g.

Do I need a calibration certificate?

A calibration certificate proves the accuracy of your weighing equipment. It is very likely that if accuracy matters in your workplace, certification will be required by your industry regulators. They are straightforward to get hold of though. Just ask our team.

Do I need a "Verified For Trade Use" scale?

If you are trading or transacting anything by weight, you will probably need to demonstrate your weighing equipment is verified for trade use. This gives your customers confidence in your business and will make sure buying and selling run smoothly. We can help get you with relevant approvals for your equipment.

How often should I have my scales calibrated?

The answer will vary depending on how your equipment is used. As a minimum, we typically recommend once a year but our team can provide advice based on your individual circumstances.

Which class of test weight should I use?

The International Organization of Legal Metrology (OIML) has established standards for the classification of calibration test weights. Varying from E0 & E1, which are the most accurate to M2 which are commonly used for calibrating platform scales, floor scales and other industrial weighing instruments.

As a rough guide we have listed desired accuracy against class below.

+/- 0.1% – UNclassed Proof Load Test Weights
+/- 0.05% – M3 (Check/calibrate coarse scales)
+/- 0.005% – M1 (Check/calibrate standard scales)
+/- 0.0015% – F2 (Check/calibrate portable balances)
+/- 0.0005% – F1 (Check/calibrate precision balances)
+/- 0.00015% – E2 (Check/calibrate analytical balances)

The choice of weight class depends on the intended use and the level of accuracy required for a particular application. If you’re unsure, talk to our team who can advise you on the right class for your equipment.

How to pack a scale for shipping

If you’re sending a scale back to us for recalibration, it is ideal to use the original packaging. If this is not available choose a sturdy well-padded box to avoid shocks. Where possible, protect the load sensor by removing the weighing pan and any under-pan support and pack these separately in the box. You may be able to use the equipment’s locking pins or screws too.

Do ensure all the paperwork, including your contact details, is included to ensure we can return it once calibration is complete.

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Kern EWJ Compact Laboratory Precision Balance