Summary of Contents for Chauvin Arnox C.A 6418
- Page 1 99 Washington Street Melrose, MA 02176 GB - User’s manual Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com C.A 6418 Oblong ground tester clamp...
- Page 2 Thank you for purchasing this C.A 6418 oblong ground tester clamp. For best results from your instrument: „ read these operating instructions carefully, „ comply with the precautions for use. WARNING, risk of DANGER! The operator must refer to these instructions whenever this danger symbol appears.
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Page 3: Table Of Contents
„ Before each use, check the condition of the insulation on the housing. Any item of which the insulation is deteriorated (even partially) must be set aside for repair or scrapping. „ Before using your instrument, check that it is perfectly dry. If it is wet, it must be thoroughly dried before it can be connected or used. „... -
Page 4: Presentation
1.2. DESCRIPTION OF THE DEVICE The C.A 6418 is used to make loop impedance measurements in a parallel earth network, for example for power distribution poles, overhead contact lines, etc. These measurements are simpler to perform than the traditional measurements with two auxiliary rods. - Page 5 Measurement head. Air gaps. Guard. SET-UP Rotary switch to turn the instrument on and select measurement, SET- UP, or read memory. Trigger. Ω + A 4 function keys. HOLD OLED display unit. Wrist strap. C.A 6418 GROUND TESTER...
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Page 6: Function Keys
1.3. FUNCTION KEYS As a general rule, the functions shown in white on the keys are available when the switch is set to Ω+A or A. And the yellow arrows (▲, ▼ and ►) are available when the switch is set to MR or SET-UP. Function key is used to switch the display unit backlighting on and off. -
Page 7: Inserting The Batteries
1.5. INSERTING THE BATTERIES Refer to §4.2. 1.6. SETTING THE DATE AND TIME During the first use, set the date and time of your instrument. When you switch it on by turning the switch to Ω+A, the instrument prompts you to set the date. The year blinks. -
Page 8: Use
Ω + A Ω + A Ω + A HOLD HOLD C.A 6418 C.A 6418 GROUND TESTER GROUND TESTER If the instrument fails to make the adjustment, it reports an error by displaying Err. CAL. If this happens, switch the instrument off, check that the air gaps are clean, then switch the instrument back on. - Page 9 The impedance measured by the clamp is slightly greater than Rx. In the case of a regular check, a sudden change in the value measured shows that there is a problem. For a first-time measurement, for greater accuracy, it is best to make an earth measurement with rods. The C.A 6418 will then be used for subsequent checks.
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Page 10: Current Measurement
2.2.3. PRE-HOLD FUNCTION You can also use the pre-HOLD function (see §2.4), which freezes the measurement automatically when the jaws of the clamp are opened. This can be useful when you have only one hand free to make a measurement. 2.2.4. -
Page 11: Configuring The Instrument (Set-Up)
2.4. CONFIGURING THE INSTRUMENT (SET-UP) SET-UP Set the switch to SET-UP. Ω + A Use the ▼ and ▲ keys to scroll through the various screens of the SET-UP menu. CLR (erase memory) menu. Press the ► key to enter the CLR menu. To cancel, press the ►... -
Page 12: Adjustment
DATE menu (setting of the date). Press the ► key to enter the DATE menu. Use the ▲ and ▼ keys to set the year. Press the ► key to make the month blink. Set it using the ▲ and ▼ keys. Do the same for the day and confirm with the ►... - Page 13 2.5.2. ADJUSTMENT OF THE CURRENT MEASUREMENT Press the ▼ key to go to the next screen. You must have a stabilized current source to generate AC currents between 0.1 and 10A. To enter the current measurement adjustment procedure, press the ► key for more than 3 seconds. Step 1/7.
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Page 14: Errors
2.5.3. RESTORING THE FACTORY VALUES Press the ▼ key to go to the next screen. Restoring the factory values returns the adjustment values to the factory settings. The configuration and stored measurements are not erased. Press the ► key for more than 3 seconds. The instrument displays PRESS RT. -
Page 15: Storage
2.8. STORAGE 2.8.1. RECORDING A MEASUREMENT To record a measurement, press the MEM key. You can first press the HOLD key to freeze the measurement. For it to be possible to record a measurement, the batteries must not be discharged. This means that the symbol must not be displayed. - Page 16 2.8.4. MEMORY FULL You can record up to 300 measurements (numbered from 0 to 299). If you continue recording, measurement number 300 overwrites measurement number 0, measurement 301 overwrites measurement 1, and so on. The instrument reports this by alternately displaying FULL and the memory slot number. You can continue like this up to number 9999, at which point recording becomes impossible and you must erase the memory to be able to resume recording.
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Page 17: Technical Characteristics
3. TECHNICAL CHARACTERISTICS 3.1. GENERAL REFERENCE CONDITIONS Quantities of influence Reference values Temperature 23 ±3°C Relative humidity 50 ±10%RH Supply voltage 6 ±0.2V Electric field <1V/m Magnetic field <40A/m Operating position clamp horizontal Position of the conductor in the jaws centred Adjacent conductors carrying current in impedance measurement At least 10cm... -
Page 18: Variation In The Domain Of Use
3.2.2. CURRENT MEASUREMENTS Particular conditions of reference Frequency of the signal: 47 to 800Hz Specified measurement 0,50 to 9,995 mA 10,00 to 99,90 mA 100,0 to 299,0 mA 0,300 to 2,990 A range Resolution (R) 50 µA 100 µA 1 mA 10 mA Intrinsic uncertainty (δ) ±... -
Page 19: Power Supply
For the current measurement Influence Quantities of influence Range of influence Typical Maximum Temperature -20 to + 55 °C 0.5 δ / 10°C ± R 1.5 δ / 10°C + R Relative humidity 10 to 90 %RH 0.5 δ ± R 1 δ... -
Page 20: Mechanical Characteristics
3.6. MECHANICAL CHARACTERISTICS Dimensions (L x W x H) 300 x 106 x 56mm Weight approximately 1.2kg Clamping diameter 32mm or a 30 x 40mm or 20 x 55mm bar Ingress protection IP40 per IEC 60529 3.7. COMPLIANCE WITH INTERNATIONAL STANDARDS The device is compliant with standard IEC 61010-1 and IEC 61010-2-032, 100V category IV or 150V category III. -
Page 21: Maintenance
4. MAINTENANCE Except for the batteries, the instrument contains no parts likely to be replaced by personnel who are not specially trained and accredited. Any unauthorized repair or replacement of a part by an “equivalent” may gravely impair safety. 4.1. CLEANING Disconnect everything connected to the device and set the switch to OFF. - Page 22 „ Remove the battery compartment cover. „ Withdraw the batteries from the compartment. Spent batteries must not be treated as ordinary household waste. Take them to the appropriate recycling collection point. „ Place the new batteries in the compartment, observing the polarities. „...
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Page 23: Warranty
5. WARRANTY Except as otherwise stated, our warranty is valid for 24 months starting from the date on which the equipment was sold. Extract from our General Conditions of Sale, provided on request. The warranty does not apply in the following cases: „...