Table of Contents
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Table of Contents
Related Manuals for Chauvin Arnoux 6250
Summary of Contents for Chauvin Arnoux 6250
- Page 1 C . A 6 2 5 0 MICroHMMETEr User’s manual E N G L I S H...
- Page 2 Thank you for purchasing a C.A 6250 microhmmeter. To obtain the best service from your instrument: „ read this user manual carefully, „ comply with the precautions for use. WARNING, risk of DANGER! The operator must refer to this user’s manual whenever this danger symbol appears.
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Page 3: Table Of Contents
CONTENTS 1. PrESENTATION ..................................4 2. DESCrIPTION ..................................5 2.1. FRONT PANEL OF THE C.A 6250 ..........................5 2.2. KEYS ....................................5 2.3. DISPLAY UNIT ................................6 2.4. RS 232 INTERFACE: CHARACTERISTICS ........................7 3. USE / PrOCEDUrE ................................. 7 3.1. -
Page 4: Presentation
The C.A 6250 microhmmeter is a top-quality portable digital measuring instrument with backlit LCD display. It is designed to measure very small resistances. Housed in a rugged construction-site type case with cover, the C.A 6250 is a self-contained instrument powered by a rechargeable battery with built-in charger. -
Page 5: Description
2. DESCrIPTION 2.1. FrONT PANEL OF THE C.A 6250 „ 4 4mm-dia. safety terminals identified as C1, P1, P2 and C2 „ 9-way rotary switch: : instrument power off / setting for charging 2500 W : 2500,0 W range – measuring current 1 mA 250 W : 250,00 W range –... -
Page 6: Display Unit
2.3. DISPLAY UNIT „ Dual liquid crystal display. Secondary display unit: measurement parameters / memory address Main display unit: measured values „ Other indications and symbols: indicates that the buzzer/audible signal is activated indicates the battery charge condition indicates that temperature compensation is activated indicates the metal selected for the temperature compensation function indicates that data are being transmitted to the serial interface Indicates the memory use level... -
Page 7: Rs 232 Interface: Characteristics
2.4. rS 232 INTErFACE: CHArACTErISTICS „ The RS 232 jack can be used with 4 different peripherals (choice of 4 different links in SET-UP) : - PC : activate RS232 link between the instrument and a computer - PRNT : activate RS232 link between the instrument and a printer - TRIG : activate the remote measurement triggering function... -
Page 8: Selection Of The Measurement Mode : Key
3.2. SELECTION OF THE MEASUrEMENT MODE : There are three measurement modes: Inductive resistance measurement: Non-inductive resistance measurement: Non-inductive resistance measurement with automatic triggering: AUTO The measurement mode is selected by successive presses on the key; the mode selected is displayed bellow, in the centre of the display unit. - Page 9 3.2.2. MEASUrEMENT IN NON-INDUCTIvE rESISTANCE MODE This mode is used to measure contact resistances, bondings, and, generally, any resistance having a time constant shorter than a few milliseconds. The measurement is started by pressing STArT and stops automatically as soon as the measurement result is available. STArT must be pressed again to make another measurement.
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Page 10: Activating The Alarms
3.3. TEMPErATUrE COMPENSATION: ( 3.3.1. PrINCIPLE The metals used for the windings of certain components (e.g. the copper in transformers and motors) have large temperature coefficients (of the order of 0.4 %/°C for copper and aluminium). This makes resistance measurements strongly dependent on the temperature of the component. The “temperature compensation”... -
Page 11: Storing And Retrieving Measurements (Mem / Mr)
3.5. STOrING AND rETrIEvING MEASUrEMENTS (MEM / Mr) 3.5.1. STOrING rESULTS (MEM) Measurement results can be stored at memory addresses identified by an object number (OBJ) and a test number (TEST). An object is a “box” in which 99 tests can be stored. An object can thus represent a device on which a number of measurements/ tests are to be performed. -
Page 12: Instrument Configuration : Set-Up
3.6. INSTrUMENT CONFIGUrATION : SET-UP This function is used to configure the instrument and change its configuration as needed. After the rotary switch is turned to SET-UP : all segments of the display unit light for 1 second, SEt then appears on the small display unit to prompt for a key press, the ... -
Page 13: Printing Results (Print/Print Mem)
value Changing of values Prnt / OFF / tri9 / PC / ut100 - type of communication: successive presses on + rate: - speed regulation: then Low / hight or OFF - successive presses on Fr / 9b - press on ... -
Page 14: List Of Coded Errors
When the key is activated, the measurement is printed, along with the measurement conditions and R(q) if the function was activated). To stop printing, change the setting of the rotary switch. Below is a printing ticket form: CHAUVIN-ARNOUX - C.A 6250 INSTRUMENT NUMBER : LOW RESISTANCE MEASUREMENT :... -
Page 15: Characteristics
4. CHArACTErISTICS 4.1 CHArACTErISTICS remark: accuracies are stated in the form ± (n% read + C) where read = reading and C = a Constant, in practical units. They apply to the instrument placed in the reference conditions (see § 4.3), after 1 hour of warming up. „... -
Page 16: Environmental Conditions
4.3. ENvIrONMENTAL CONDITIONS „ Reference domain: 23°C ±5°C 45°C to 75 % HR. „ Nominal operating domain: 0°C to +50°C 20% to 80% HR without condensation. „ Extreme domain: -10°C to +55°C 10°C to +80°C, without condesation. „ Extreme storage and transport domain: -40°C to +60°C -15°C to +50°C, with battery charged. -
Page 17: Maintenance
Important remarks: Changing the battery causes stored data to be lost. Avoid storing the instrument with the battery charge too low. If the instrument is left unused for a long time (more than 2 months), the charging time will be longer. Before using the instrument again, it is therefore best to carry out 3 complete charging/discharging cycles. - Page 18 : 02 31 64 51 43 outside mainland France: to a Chauvin Arnoux subsidiary or to the dealer who sold you this equipment. „ or make the adjustment using the procedure below, which requires equipment at least as effective as that used for the check performed previously.
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Page 19: Warranty
5.2.2. UPDATING THE INTErNAL SOFTWArE If there are upgrades of the instrument, the updates of the internal software will be available on Chauvin Arnoux’s Web site: http://www.chauvin-arnoux.com with the procedure to be followed. The update will be performed using the UP9 command of the SEt maintenance menu. Once this command has been validated, 5 lines appear, indicating that the instrument is ready to communicate with the computer for the downloading of the new version of the program. -
Page 20: To Order
7. TO OrDEr C.A 6250 .................................. P01143201 Delivered with a bag containing: 1 set of 3m cables terminated by Kelvin clamps, 1 2-m Euro power supply cord, 1 user manual in 5 languages, 5 abridged user manuals (1 per language). - Page 22 Tel: 01 61 61 9 61-0 - Fax: 01 61 61 9 61-61 Tel: (01) 890 425 - Fax: (01) 890 424 SCANDINAVIA - CA Mätsystem AB USA - Chauvin Arnoux Inc - d.b.a AEMC Instruments Sjöflygvägen 35 - SE 18304 TÄBY 200 Foxborough Blvd. - Foxborough - MA 02035...
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