About Us

An Introduction

Cropico has stood for accuracy and quality amongst measuring instruments for over 50 years. We export over 75% of our total production, which means we enjoy the support of a wide network of Agents and Distributors.

Now under the ownership of the Seaward Group, world leaders in the market of safety testing, Cropico is making great strides for the future whilst building on its past success.

 

Raising The Standard

This commitment to quality and attention to detail is apparent in every aspect of our workmanship and service. We take immense pride in the quality of each and every one of our products, ensuring they are accurate, reliable and fully compliant with current legislation. And, as you would expect, sound purchasing advice is a phone call or e-mail away.

Our quality control and component selection processes are stringent and uncompromising, ensuring each product has a long and trouble-free life. As a result, we may not always seem the cheapest option, but when comparing like-for-like, we can’t be beaten. And Cropico promise no hidden extras - all instruments are supplied ready for use and include a Certificate of Conformity. Each of our digital instruments is supplied with a Calibration Certificate,
traceable to National Standards via NAMAS, at no extra cost.

 

The Last Word

But our commitment to our clients doesn't end there. All our products carry a full year?s warranty, and we are happy to provide after-sales advice. In buying a Cropico product you can rest assured that you have purchased the very best in measurement at a realistic price, safe in the knowledge that, should any problems arise, they will be dealt with swiftly and competently. 

Cropico, part of the Seaward Group, is a member of GAMBICA and the B2B Compliance scheme which incorporates the WEEE directive. We ask that if you wish to dispose of any Cropico product that you contact the B2B Compliance Operations Team on 01691 676 124 or click here for more details.

1. CROPICO 十进制电阻箱 电阻 RM8 货号:930144

RM8 Resistance Decade / Total Resistance 1.1111111 Megohm, Resolution 0.01 ohm

The model RM8 decade resistance box is designed to complement our range of resistance boxes, offering a very wide range 0.01ohm to 1Megohm in a compact and versatile unit. The low decade steps of 0.01ohm enables very high resolution, when simulating resistance values and the power rating is 1.0 watt per coil.

The RM8 uses double pole switching to minimize the effects of contact resistance. The lower value decades (0.01 and 0.1ohm) are manufactured from manganin resistance wire and the other decades from selected metal film resistors. This offers good stability combined with excellent load and temperature coefficients. Housed in a hardwood case with metal panel the size is only 254 x 145 x 80 mm and the connections are with 4 mm binding posts that will accept spade or banana plugs.

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Key Features

  • Suitable for the Aerospace Industry.
  • 8 Decades.
  • Wide Range 0.01Ω to 1MΩ.
  • Accuracy 0.1%
  • Exceptional Value for Money.
  • Compact Size.
  • Power Rating 1W / Coil.

2. CROPICO 十进制电阻箱 RM6

RM6 Resistance Decade / Total Resistance 11.1111 M Ohms, Resolution 10 Ohms

This small cost effective decade resistance box further enhances our comprehensive range, offering excellent value for money. This 6 decade model has a total resistance of 11.1111 Megohms with a resolution of 10 ohms. The accuracy of ±1% is achieved using metal film resistors which have a power rating of 0.4 Watt, the maximum specified voltage is 250V.

Designed for durability, the case is polished hardwood with a light alloy top panel which is clearly marked with the switch position numbers and decade values. The size is only 287 x 65 x 65 mm. The RM6 is a valuable addition to any workshop or laboratory offering a wide range of values with minimum cost.

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Key Features

  • Suitable for the Aerospace Industry.
  • 6 Decades.
  • Range 10Ω to 10 MΩ .
  • 1% Accuracy.
  • Low Cost.

3. CROPICO 十进制电阻箱 电阻 RM6-N2

RM6N, RM6 N2, RM6 N3 Resistance Decade
Total Resistance 11.1111 Megohm, Resolution 10 Ohms

The RM6-N is a space and cost-saving 6 decade resistance box . 3 models are available covering the range 1ohm to 111.111 Megohm. An additional 1kohm resistor is available at the terminals enabling the user to make a simple divider. The RM6-N incorporates 0.6 watt metal film resistors with a specified accuracy of ±1%. The maximum permissible voltage is 250 V d.c. Designed for durability and ease of maintenance, the case is high impact polystyrene, and the size is only 190 x 140 x 70 mm.

The RM6-Ns constitute an ideal tool for use in all electrical and electronic laboratories or workshop environment offering a wide range of values with minimum cost.

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Key Features

  • Suitable for the Aerospace Industry.
  • 6 Decades.
  • Choice of 3 models.
  • Range 1Ω to 100 MΩ.
  • Accuracy 1%
  • Small Size & Low Cost.

4. CROPICO 十进制电阻箱 006

005/6/8 High Accuracy Resistance Decade Boxes / 5, 6 & 8 Decades + Special Models for Pt100 Simulation

A versatile range of resistance boxes available in 5, 6 & 8 decades. High Accuracy and wide range 0.001 ohm to 11 Megohms are combined in a compact lightweight case. The switches have gold plated contacts to ensure a low contact resistance and negligible thermal emf.

Some models are particularly suited to Pt100 simulation with resolution as low as 0.001 ohm (0.0025°C).

High Accuracy Resistance Decade Boxes / 5, 6 & 8 Decades
Technical Specifications

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Key Features

  • Suitable for the Aerospace Industry.
  • High Accuracy 0.01% and High Performance.
  • Suitable for Pt100 Simulation.
  • 5, 6 and 8 Decades.
  • Long Term Stability ± 20ppm/year.
  • Low Temperature Co-efficient ± 3ppm/°C to + 85 °C.
  • Gold Plated Switch Contacts and Solid Copper Input Terminals .
  • Negligible Thermal e.m.f.s.
  • Light Weight / Small Size .
  • With Certificate of Conformity.
  • In-House Test Figures Optional.