Advertisement
Table of Contents
Advertisement
Table of Contents
Related Manuals for Megger DET14C
Summary of Contents for Megger DET14C
- Page 1 DET14C and DET24C Digital Earth Clamp-on Tester USER GUIDE...
-
Page 2: G Safety Warnings
SAFETY WARNINGS These safety warnings are provided to ensure the safety of personnel and proper operation of the instrument. Safety warnings and precautions must be read and understood before the instrument is used. They must be observed during use. ■ Do not leave the instrument connected to the system under test when not in use. -
Page 3: Table Of Contents
Symbols used on the instrument CONTENTS G SAFETY WARNINGS ..............2 Caution: refer to accompanying notes. CONTENTS..................3 Equipment protected throughout by Double Insulation. GENERAL DESCRIPTION ..............4 APPLICATION................... 6 Equipment complies with current EU directives. MODES OF OPERATION ..............8 N13117 Equipment complies with current “C tick”... -
Page 4: General Description
The DET14C and DET24C represent a new generation of earth/ground clamp-on resistance testers. These instruments The DET14C offers storage of results for later on-screen recall induce a test current into earth systems and measure ground and the DET24C supports a download of results via IrDA-to-USB resistance in multi ground installations without needing to link into PowerDB and Power DB Lite, Megger’s Acceptance &... - Page 5 Figure 1: DET14C / DET24C Instrument Front View Figure 2: DET14C / DET24C Instrument Rear View 6. Keypad 1. Clamp jaws 7. Tactile barrier 2. Tactile barrier 3. Rotary switch 8. Lever 9. Battery cover/label 4. HOLD button 5. LCD display...
- Page 6 Figure 3: DET14C / DET24C Instrument Bottom Figure 4: DET14C / DET24C Instrument Display View View Save Tick = set 1. Wrist strap loop 2. IrDA window Open Cross = not set Delete Warning refer to user guide IrDA download...
-
Page 7: Application
Figure 5: Example earthing system suitable for APPLICATION clamp meter The DET14C / DET24C digital earth clamp meters are particularly suitable for measuring earth resistance in various installations such as buildings, pylons and RF transmitter sites without system disconnection. In addition, they can be used for the inspection and verification of lightning protection systems and virtually any installation where a current loop can be generated. -
Page 8: Modes Of Operation
Figure 6: Main mode selection using the rotary switch MODES OF OPERATION The DET14C / DET24C can operate in one of three main modes, selected using the rotary switch: OFF – Turn instrument off Ω - Resistance measurement A - Current measurement... -
Page 9: General Operation
Fig 8. Resistance measurement mode reading or turns off the instrument. Resistance measurements in high noise environments can be problematic resulting in no reading. The DET14C / 24C instruments incorporate a noise symbol ( ) to indicate presence of noise during a measurement. A filter function indicated by the filter icon ( ), is activated automatically in the presence of noise. - Page 10 HOLD Saving Data The HOLD key can be used to freeze a result in either resistance Data is saved in either resistance mode (Ω) or current mode (A). or current mode. Once held, the result can be saved to memory Pressing the save key () will record a result with a time and using the save () button.
- Page 11 ) function, which is the default screen on Download Data (DET24C only) switching to function mode (Fn). Press the OK button to enter ® Megger’s asset management software, PowerDB is used to the recall function. interface and download stored data from the DET24C. The DET24C downloads to all versions of PowerDB, the Lite version Results are showed with an index number.
- Page 12 being downloaded. On completion of the download the Current mode (A) alarms, HI and LO, are set in the same way instrument returns to the Function mode (Fn). PowerDB and follow directly on after setting resistance alarms. If either shows results being loaded at the top of the form. resistance or current alarms are not required, simply leave a cross in the relevant alarm setting.
-
Page 13: General Specifications
Auto power down button press) mains installation. This part of the installation is expected to 256 records (DET14C) have a minimum of one level of over-current protective devices Data logging 2 k records (DET24C) -
Page 14: Measurement Specifications
Operational Error for Resistance MEASUREMENT SPECIFICATIONS Parameter Specification Typical 3.4% 12.9% Operating Position Instrument Reference Conditions Horizontal 1.6% 9.7% Conductor IEC 61557-5 E Temperature +20 °C ± 3 °C Position ±90 ° Humidity 50% RH ± 10% 2.0% 18.0% Battery Voltage IEC 61557-5 E Battery Voltage 6 V ±... - Page 15 Operational Error for Current Alarm Setting Parameter Specification Typical 0.26% 0.51% Operating Instrument Alarm Type Range Position Horizontal Ω HI 0.05 Ω to 1500 Ω 0.65% 2.0% Conductor IEC 61557-13 E Position ±30 ° Ω LO 0.05 Ω to 1500 Ω 0.69% 5.7% Battery Voltage...
-
Page 16: Ordering Information And Accessories
ORDERING INFORMATION AND ACCESSORIES PREVENTIVE INSTRUMENT MAINTENANCE 1. The DET series instruments require very little maintenance. DET14C Digital Earth Test Clamp-on meter 1000-761 2. Test leads should be checked before use to ensure there is DET24C Digital Earth Test Clamp-on meter 1000-762 no damage. -
Page 17: Repair And Warranty
A number of independent instrument repair companies have been approved for repair work on most Megger instruments, using genuine Megger spare parts. Consult the Appointed Distributor / Agent regarding spare parts, repair facilities and advice on the best course of... - Page 18 Fax: +44 (0) 1304 207342 Fax: +1 (610) 676-8610 Fax: +1 (214) 337-3038 This instrument is manufactured in the United Kingdom. The company reserves the right to change the specification or design without prior notice. Megger is a registered trademark. DET14C_DET24C en V03 www.megger.com...