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Summary of Contents for Cropico DO5000
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Page 1: Operating Instructions
Microhmmeter Type DO5000 Series Operating Instructions 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com... - Page 2 Microhmmeter Type DO5000 Operating Instructions Limited Warranty & Limitation of Liability CROPICO guarantees this product for a period of 1 year. The period of warranty will be effective at the day of delivery. (c) Copyright 2011 All rights reserved. Nothing from this edition may be multiplied, or made public in any form or manner, either electronically, mechanically, by photocopying, recording, or in any manner, without prior written consent from CROPICO.
- Page 3 Microhmmeter Type DO5000 Operating Instructions Disposal of Old Product This product has been designed and manufactured with high quality materials and components that can be recycled and reused. When the crossed out wheelie bin symbol is attached to a product it means the product is covered by the European Directive 2002/96/EC.
- Page 4 Certification CROPICO certifies that this product met its published specifications at the time of shipment from our factory. All calibration measurements performed in the manufacture of this instrument are traceable to the National Physical Laboratory (London).
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Page 5: Table Of Contents
Microhmmeter Type DO5000 Operating Instructions Table of Contents 1. Introduction Overview Definitions and Terminology Standard Features of the DO5000 Principles of Measurement Specification 1.5.1 Measurement Accuracy 1.5.2 Programmable Current 1.5.3 Measurement Accuracy with Current Levels 1.5.4 Temperature Compensation 1.5.5 Conditions of Use 1.5.6 Lead Resistance... -
Page 6: Introduction
• Fast mode 50 measurements/second for production testing. The DO5000 is a true four wire measuring instrument eliminating the need to compensate for lead resistance. The measured value is displayed in large characters with decimal point and units kΩ, Ω, or mΩ. For maximum accuracy the measuring current may be automatically reversed and the average of measurement displayed. -
Page 7: Definitions And Terminology
Microhmmeter Type DO5000 Operating Instructions 1.2 Definitions and Terminology µΩmicrohmm 0.000001 Ohm mΩmilliohm 0.001 Ohm kΩkilohm 1000 Ohm Pt100 Platinum resistance thermometer (100Ω at 0°C) +U/-U Voltage connection +I/-I Current connection Four terminal measurement Kelvin principle of measurement using 2 wires (I1 I2) to pass current through Rx and 2 wires (P1 P2) to measure the voltage. -
Page 8: Standard Features Of The Do5000
Microhmmeter Type DO5000 Operating Instructions 1.3 Standard features of the DO5000 Microhmmeter include: • Direct display of resistance • Illuminated display • Up to 10 Amps measuring current (programmable 10% to 100%) • Automatic Temperature compensation • Display hold function •... -
Page 9: Principles Of Measurement
Microhmmeter Type DO5000 Operating Instructions 1.4 Principles of measurement BLANK PAGE... -
Page 10: Specification
Microhmmeter Type DO5000 Operating Instructions 1.5 Specification 1.5.1 Measurement Accuracy 5000/5001 Range Max. Current Resolution Accuracy at full rated Temp. Coefficient/qC current ±(0.03%Rdg+0.02%FS) 10ppm Rdg + 6ppm FS 30 k: 100PA ±(0.03%Rdg+0.01%FS) 10ppm Rdg + 6ppm FS 3 k: 100m: ±(0.03%Rdg+0.01%FS) -
Page 11: Temperature Compensation
Microhmmeter Type DO5000 Operating Instructions 1.5.4 Temperature compensation The accuracy of the temperature measurement is ±0.1% and uses a standard Pt100 sensor. This accuracy does not include errors due to the sensor itself. The temperature measurement range is 0…+40°C and the resistance measurement is referenced to 20°C when this option is used. -
Page 12: Setting Up The Do5000
Microhmmeter Type DO5000 Operating Instructions 2 Setting up the DO5000 2.1 Safety information Please read and follow these important safety instructions: • Read the safety information at the beginning of this manual before operating the DO5000; • Make the necessary electrical safety connection checks. In particular, select the correct line voltage and make sure that the correct fuse is installed. -
Page 13: Unpacking The Instrument
Microhmmeter Type DO5000 Operating Instructions 2.2 Unpacking the instrument When you unpack the DO5000, check that the following items are present before starting to use the unit: • 1 x DO5000 Microhmmeter • 1 x Mains Cord • 1 x Operating Manual •... -
Page 14: About The Do5000
All DO5000 measurements and programming facilities are accessed through the function keypad. A brief description of key functions is given in the following table. For a detailed description of how to use the keys to configure and operate the DO5000, refer to section 4. -
Page 15: Measurement Zero
Microhmmeter Type DO5000 Operating Instructions 3.4 Table Summary of basic functions Direct Symbol Description Function function or menu Selection of Range Selects and displays the measured value Direct Selects 3m: range from using the 3m: range keypad 30m: Selects and displays the measured value... - Page 16 Microhmmeter Type DO5000 Operating Instructions Setting up measurement options Current selection Selects the current to be used for Menu CURR measurement plus single polarity or switched average Mode Temperature Selects temperature compensation Menu COMP compensation Measurement Nulls the display at the current reading...
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Page 17: About The Do5000 Display Screen
Slow + 18.000 m: Meas Cont The keypad below the display screen controls the DO5000. Some keys perform a function directly. For example, selects 3mΩ range. Other keys switch the display to configuration mode which allows you to select options through a series of menus. -
Page 18: About The Do5000 Function Keys
Microhmmeter Type DO5000 Operating Instructions 3.6 About the Function keys The top row of function keys are only used to select menu options. The lower row of function keys is enabled only when entering values; these instances are covered later in this section. -
Page 19: Setting Up Measurement Options
4.3 Measurement Mode Press [MODE] to select the measurement mode options Display Trig Read :/Km Km Mode Rate Filt Sett Quit For the greatest flexibility and versatility of measurement the DO5000 has many advanced features which can be selected from this menu. - Page 20 Press [Read Rate] to select (Fast) or (Slow) measurement mode. With Fast mode selected the DO5000 will measure at 50 measurements per second. This mode is intended for automatic measurements using one of the interfaces to output the measured values or control an external process.
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Page 21: Temperature Compensation
Microhmmeter Type DO5000 Operating Instructions For manual operation the Slow measurement mode should be selected. This will read at 2 measurements per second and offer the highest accuracy and resolution. Press [Filt] to select the digital filter, this feature should be used when the sample to be measured is unstable and the measured value displayed is constantly changing. -
Page 22: Limits
Red Fail LED will light and the warning beeper will sound if the measured value is higher than the Max limit set or lower than the Min limit set. The DO5000 screen will also display PASS or FAILED with >> to show value to high and << to show value to low. -
Page 23: Data Logging Function
Peak to Peak value [PtP] Standard Deviation [SD] 4.7 Setup Memory To enable up to 10 measurement configurations to be setup and stored the DO5000 has 10 memories to store and recall these configurations;- Press [MENU] Press [Mem] to select memory menu... -
Page 24: Display Menu
Key Lock menu. Three options are available [ALL] enables all keys and permits normal control of the DO5000. [MEM] permits operation of the Memory, Recall, and Measure Keys only. [Measure] restricts operation to the Measure Key only. Once the Key Lock facility is enabled... -
Page 25: Measure/Hold Function
Microhmmeter Type DO5000 Operating Instructions 4.9 Measure/Hold function Press [Mes] to hold the measured value on the display. NOTE this does not interrupt the measuring current which will still be flowing through the resistance being measured. WARNING when measuring with 10 Amps measuring current, it is possible to produce small sparks at the current terminals. -
Page 26: Measuring With The Do5000
5 Measuring with the DO5000 5.1 Connecting to the DO5000 The DO5000 uses a four terminal method of measurement which eliminates errors due to lead resistance. The measuring leads plug into the four front panel safety sockets. The sockets are marked +U, -U, +I, &... - Page 27 Microhmmeter Type DO5000 Operating Instructions Figure 5.3.1 Diagram of different connection configurations Connection to Cable Joint Connections to Current Shunt Connections to Stud Terminals Measurement with duplex handspikes...
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Page 28: Resistance Measurement
The true measured resistance value will be displayed in large digits on the DO5000 screen and the compensated value will be shown in smaller digits below the main display. The measured or set temperature will also be shown. -
Page 29: Resistance Measurement With Limits
Microhmmeter Type DO5000 Operating Instructions 5.6 Measurement with Limits The measurement limits function permits the fast easy sorting of components.To select the limits function see section 4.5. Both high and low limit values may be set.If the measured value is within the set limit boundaries then front panel green PASS LED will illuminate. If the... -
Page 30: Measurement Of Inductive Devices
DO5000 continues to take measurements without interrupting the current, until ‘STOP’ is pressed. When ‘MEAS’ is pressed again, the Settling facility will be re-engaged. - Page 31 Microhmmeter Type DO5000 Operating Instructions OTHER ISSUES Due to inductive effects, ‘Overange Error’, ‘Polarity Error’, ‘Excess Resistance in Current Leads Error’ and ‘Open Circuit Error’ will all be ignored until the final measurement. If the Autorange changes the range during a measurement, then the ‘Number of Readings’...
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Page 32: Accessories
Operating Instructions 6 Accessories 6.1 Leads The DO5000 may be used with a variety of lead sets. The following are the available selection. Remember, if you do not see suitable leads for your application, please consult our customer help desk. -
Page 33: Temperature Probe
Microhmmeter Type DO5000 Operating Instructions 6.5 Temperature Probe For the sensing of the temperature of the sample under test. Ordering Code Description 5000-Pt100 Pt100 Temperature Sensor Probe length 200mm, diameter 6mm. Fitted with 1 Metre Lead and DIN Plug... - Page 34 Microhmmeter Type DO5000 Operating Instructions For Service and Calibration Contact: 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com CROPICO is a division of SEAWARD G R O U P...
- Page 35 Microhmmeter Type DO5000 Operating Instructions Additional Products From Cropico DIGITAL OHMMETERS RESISTANCE BRIDGES RESISTANCE DECADE BOXES RESISTANCE STANDARDS DIGITAL THERMOMETERS THERMOCOUPLE SIMULATORS PT100 SIMULATORS INSULATION TEST SETS UNIVERSAL CALIBRATORS HIPOT TESTERS ELECTRICAL SAFETY TESTERS Phone, fax or e-mail for further information on the above or for a...
- Page 36 610018 Rev 11...
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