Related Manuals for Gossen MetraWatt GEOHM ERP-1
Summary of Contents for Gossen MetraWatt GEOHM ERP-1
- Page 1 Operating Instructions GEOHM ERP-1 Adapter for flexible AC Current Sensors GEOHM FLEX 1-3 3-447-062-03 1/8.19...
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Page 2: Table Of Contents
Inhalt Safety ............................... 3 Description of the adapter GEOHM ERP-1 ................... 4 Measurements ..........................5 Power supply of GEOHM ERP-1 ....................10 Monitoring the power supply voltage ..................10 Replacing (rechargeable) batteries .................... 10 Charging the reachargeable batteries ..................10 Cleaning and maintenance ...................... -
Page 3: Safety
Safety GEOHM ERP-1 adapter is designed to adapt earth tester GEOHM PRO and XTRA for the measurements of earth resistance of various objects e.g. power pillars, using flexible AC current sensors (GEOHM FLEX 1-3). The adapter is designed to work with earth tester GEOHM PRO and XTRA that provide the user with a choice of performing the measurement using 3-wire method with flexible AC current sensors. -
Page 4: Description Of The Adapter Geohm Erp-1
Description of the adapter GEOHM ERP-1 Terminal for connecting the cable of flexible AC current sensors Cable for connecting the adapter to the plug in the earth tester LED indicating low battery level LED indicating Switching the exceeded level of... -
Page 5: Measurements
4. Connect the adapter to earth tester using the cable (length: 2 m) coming out from the terminal marked with letters . This cable is an integral part of GEOHM ERP-1 adapter. 5. Connect flexible AC current sensors to the adapter using the cable coming out from the terminal marked with symbol 6. - Page 6 12. After obtaining the results of earth resistance for each leg, calculate the resultant resistance of the whole structure, using the following formula. , [1] where: – resultant resistance of the object, – resistance of the first leg of the object, –...
- Page 7 Note: Before using flexible AC current sensors for the first time, they should be calibrated according to the description included in the operating instructions of earth tester. Repeat the procedure each time you change the flexible AC current sensors. It is recommended to perform the calibration every time the current sensor type is changed.
- Page 8 d) After selecting an object with four legs the following screen is shown. After connecting the flexible AC current sensors to ERP-1 adapter and connecting the adapter to the earth tester; when the number of wraps and type of current sensors are set, the right side of the screen will show the following values: U –...
- Page 9 g) After completing the measurements on the last leg of the structure and after displaying (for 5 seconds) the resistance result (R ), the following screen will be displayed: After completing a series of measurements (on each leg), the screen will display the resultant earth resistance R .
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Page 10: Power Supply Of Geohm Erp-1
Power supply of GEOHM ERP-1 Monitoring the power supply voltage The adapter is powered by three 1.5 V LR6 batteries or by three 1.2 V LR6 rechargeable batteries of NiMH type. When BAT LED is light up, it indicates the need to replace the batteries or to recharge the rechargeable batteries. -
Page 11: Cleaning And Maintenance
Use only the maintenance methods specified by the manufacturer in this manual. The adapter GEOHM ERP-1 or flexible AC current sensors GEOHM FLEX 1-3 are cleaned as follows: • The casing of the adapter may be cleaned with a soft, damp cloth using all-purpose detergents. Do not use any solvents or cleaning agents which might scratch the casing (powders, pastes, etc.). -
Page 12: Technical Specifications
Technical specifications Abbreviation "m.v." used in the specification of measurement uncertainty means a standard measured value. Basic data Flexible AC current sensors GEOHM FLEX 1 measurement Uncertainty of the adapter Range 0,000 Ω…1999 Ω* ± (8 % m.v. ± (8 % m.v. (7 % m.v. - Page 13 Current measurement Range Resolution Basic uncertainty 0,0 mA ... 99,9 mA 0,1 mA unspecified 100 mA...999 mA 1 mA ± (8 % m.v. + 3 digits) 1,00 A...4,99 A 0,01 mA ± (5 % m.v. + 5 digits)* * above 5 A the uncertainty is unspecified Flexible AC current sensors GEOHM FLEX 3 measurement Uncertainty of the adapter...
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Page 14: Additional Data
Other technical specifications a) type of insulation: ............double, according to EN 61010-1 and IEC 61557 b) measurement category: ............... IV 300V according to EN 61010-1 c) degree of housing protection acc. to EN 60529: ................IP67 d) power supply of the meter: ..3 batteries of LR6 type (1.5 V) or 3 NiMH rechargeable batteries of LR6 type (1.2 V) e) time of automatic shut-off of the device (Auto-Off): .............. -
Page 15: Scope Of Delivery
Scope of Delivery GEOHM ERP-1: adapter for GEOHM FLEX 1-3 AA batteries type LR6 (1,5 V) Operating instructions 10 Optional accessories Flexible AC current sensor GEOHM FLEX 1 (Z592P) Flexible AC current sensor GEOHM FLEX 2 (Z592V) Flexible AC current sensor GEOHM FLEX 3 (Z592W) - Page 16 Erstellt in Deutschland • Änderungen vorbehalten • Eine PDF- Version finden Sie im Internet Telefon+49 911 8602-111 GMC-I Messtechnik GmbH Telefax +49 911 8602-777 Südwestpark 15 E-Mail info@gossenmetrawatt.com ● 90449 Nürnberg Germany www.gossenmetrawatt.com GMC-I Messtechnik GmbH...
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