Fluke 381 Users Manual
2015-09-09
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381 Remote Display True-rms Clamp Meter Calibration Manual December 2010 Rev.1, 6/12 © 2010-2012 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies. LIMITED WARRANTY AND LIMITATION OF LIABILITY Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is three years and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in Fluke's opinion, has been misused, altered, neglected, contaminated, or damaged by accident or abnormal conditions of operation or handling. Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke does not warrant that software will be error free or operate without interruption. Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price. Fluke reserves the right to invoice Buyer for importation costs of repair/replacement parts when product purchased in one country is submitted for repair in another country. Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair, or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period. To obtain warranty service, contact your nearest Fluke authorized service center to obtain return authorization information, then send the product to that service center, with a description of the difficulty, postage and insurance prepaid (FOB Destination). Fluke assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke determines that failure was caused by neglect, misuse, contamination, alteration, accident, or abnormal condition of operation or handling, including overvoltage failures caused by use outside the product’s specified rating, or normal wear and tear of mechanical components, Fluke will provide an estimate of repair costs and obtain authorization before commencing the work. Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges (FOB Shipping Point). THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY. Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court or other decision-maker of competent jurisdiction, such holding will not affect the validity or enforceability of any other provision. Fluke Corporation P.O. Box 9090 Everett, WA 98206-9090 U.S.A. 11/99 To register your product online, visit register.fluke.com Fluke Europe B.V. P.O. Box 1186 5602 BD Eindhoven The Netherlands Table of Contents Title Introduction ........................................................................................................ Contact Fluke ..................................................................................................... Safety Information ............................................................................................. The Meter........................................................................................................... Specifications ..................................................................................................... Electrical Specifications ................................................................................ Mechanical Specifications ............................................................................. Environmental Specifications ........................................................................ Required Equipment .......................................................................................... Performance Tests.............................................................................................. Calibration Adjustment ...................................................................................... Calibration Password Operation Procedure ................................................... Change the Password ..................................................................................... Two Special Passwords ................................................................................. Adjustment Procedure ................................................................................... Balance Adjustment....................................................................................... Maintenance ....................................................................................................... Clean the Product .......................................................................................... Battery Replacement ..................................................................................... User Replaceable Parts ...................................................................................... i Page 1 1 2 5 5 5 7 7 8 8 15 15 16 16 16 17 19 19 19 20 381 Calibration Manual ii List of Tables Table 1. 2. 3. 4. 5. 6. Title Symbols .................................................................................................................. Required Equipment............................................................................................... Performance Tests .................................................................................................. iFlex Performance Tests ......................................................................................... Adjustment Procedure ............................................................................................ User Replaceable Parts ........................................................................................... iii Page 4 8 11 14 18 20 381 Calibration Manual iv List of Figures Figure Title 1. 2. 3. 4. 5. 6. 7. 8. The Meter ............................................................................................................... Position Sensitivity................................................................................................. Performance Test Connections for AC Amps and DC Amps ................................ Performance Test Connections for AC Amps, DC Amps, and Frequency ............ Performance Test Connections for AC Voltage, DC Voltage, and Frequency ...... Performance Test Connections for the iFlex .......................................................... Current Test Simulated with Voltage ..................................................................... Changing the Batteries ........................................................................................... v Page 5 6 8 9 10 13 14 20 381 Calibration Manual vi Introduction XWWarning Read "Safety Information" before you use the Product. This manual explains the Calibration Adjustment for the 381 Remote Display True-rms Clamp Meter (the Product). Please see the 381 Users Manual for usage information. The Product is a handheld, battery-operated Clamp Meter that has a remote-display module and detachable Flexible Current Probe (iFlex). Contact Fluke To contact Fluke, call one of the following telephone numbers: • Technical Support USA: 1-800-44-FLUKE (1-800-443-5853) • Calibration/Repair USA: 1-888-99-FLUKE (1-888-993-5853) • Canada: 1-800-36-FLUKE (1-800-363-5853) • Europe: +31 402-675-200 • Japan: +81-3-6714-3114 • Singapore: +65-6799-5566 • China: +86-400-810-3435 • Anywhere in the world: +1-425-446-5500 Or, visit Fluke's website at www.fluke.com. To register your product, visit http://register.fluke.com. To see, print, or download the latest manual supplement, visit http://us.fluke.com/usen/support/manuals. 1 381 Calibration Manual Safety Information A Warning identifies conditions and actions that pose hazard(s) to the user. A Caution identifies conditions and procedures that could cause Meter damage, equipment under test damage, or permanent loss of data. Symbols used on the Product and in this manual are explained in Table 1. XWWarning To prevent possible electrical shock, fire, or personal injury: 2 • Use the Product only as specified, or the protection supplied by the Product can be compromised. • Examine the case before you use the Product. Look for cracks or missing plastic. Carefully look at the insulation around the terminals. • Do not measure current while the test leads are in the input jacks. • The battery door must be closed and locked before you operate the Product. • Remove all probes, test leads, and accessories before the battery door is opened. • Do not use test leads if they are damaged. Examine the test leads for damaged insulation, exposed metal, or if the wear indicator shows. Check test lead continuity. • Do not use the Product if it operates incorrectly. • Do not use the Product around explosive gas, vapor, or in damp or wet environments. • Use only type AAA batteries, properly installed in the Product case, to power the Product. • Hold the Product behind the tactile barrier. See Figure 1. • Replace the batteries when the low battery indicator ( or ) shows to prevent incorrect measurements. • Use only specified replacement parts. • Have an approved technician repair the product. • Do not touch voltages >30 V ac rms, 42 V ac peak, or 60 V dc. • Do not apply more than the rated voltage, between the terminals or between each terminal and earth ground. • Keep fingers behind the finger guards on the probes. • Connect the common test lead before the live test lead and remove the live test lead before the common test lead. • Do not work alone. Remote Display True-rms Clamp Meter Safety Information • Use caution around bare conductors or bus bars. To prevent electrical shock, do not touch the conductor. • Comply with local and national safety codes. Use personal protective equipment (approved rubber gloves, face protection, and flame-resistant clothes) to prevent shock and arc blast injury where hazardous live conductors are exposed. • Disconnect power and discharge all high-voltage capacitors before you measure resistance or continuity. • Do not measure ac/dc current in circuits carrying more than 600 V or 200 A with the Product Jaw. • Do not operate the product with covers removed or the case open. Hazardous voltage exposure is possible. • When white wear indicator insulation shows through the clamp cable jacket, replace the clamp cable. • When batteries are changed, ensure that the calibration seal in the battery compartment is not damaged. If damaged, the Product may not be safe for use. Return the Product to Fluke for replacement of the seal. • Do not exceed the Measurement Category (CAT) rating of the lowest rated individual component of a product, probe, or accessory. • Do not measure ac current in circuits carrying more than 1000 V or 2500 A with the iFlex. • Do not apply the iFlex around or remove from HAZARDOUS LIVE conductors. • Take special care during fitting and removal of the iFlex. Deenergize the installation under test or wear suitable protective clothing. W Caution To prevent possible damage to the product or to equipment under test: • Use the correct terminals, function, and range for measurements. • Clean the case and accessories with a damp cloth and mild detergent only. Do not use abrasives or solvents. 3 381 Calibration Manual Table 1. Symbols Symbol Meaning Symbol Meaning AC (Alternating Current) J Earth ground DC (Direct Current) AC and dc current. X Hazardous voltage P Conforms to European Union directives. W Risk of Danger. Important information. See Manual. ) Conforms to relevant North American Safety Standards. Battery. Low battery when shown. T Double insulated CAT III IEC Measurement Category III IEC Measurement Category IV CAT III equipment has protection against transients in equipment in fixed-equipment installations, such as distribution panels, feeders and short branch circuits, and lighting systems in large buildings. CAT IV equipment has protection against transients from the primary supply level, such as an electricity Meter or an overhead or underground utility service. CAT IV ® Examined and licensed by TÜV Product Services. Conforms to relevant Australian standards. - Do not apply to or remove from HAZARDOUS LIVE conductors. , Application around and removal from HAZARDOUS LIVE conductors is permitted. ~ Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling information. Note The Measurement Category (CAT) and voltage rating of any combination of test probe, test probe accessory, current clamp accessory, and the Meter is the LOWEST rating of any individual component. 4 Remote Display True-rms Clamp Meter The Meter The Meter CAT 1000 V CAT 600 V ZERO iFlex REMOTE DISPLAY 381 TRMS CLAMP METER 1000 A Tactile Barrier Figure 1. The Meter ghn02.eps Specifications Electrical Specifications AC Current Via Jaw Range ..................................................... 999.9 A Resolution ............................................... 0.1 A Accuracy ................................................. 2 % ± 5 digits (10-100 Hz) 5 % ± 5 digits (100-500 Hz) Crest Factor (50/60 Hz) .......................... 3 @ 500 A 2.5 @ 600 A 1.42 @1000 A Add 2 % for C.F. > 2 AC Current via iFlex Range ..................................................... 999.9 A / 2500 A (45 Hz – 500 Hz) Resolution ............................................... 0.1 A / 1 A Accuracy ................................................. 3 % ±5 digits Crest Factor (50/60Hz) ........................... 3.0 at 1100 A 2.5 at 1400 A 1.42 at 2500 A Add 2 % for C.F. > 2 5 381 Calibration Manual Position Sensitivity Figure 2 shows the position sensitivity of the iFlex. A B C ghn12.eps Distance from Optimum i2500-10 Flex i2500-18 Flex Error A 0.5 in (12.7 mm) 1.4 in (35.6 mm) ± 0.5 % B 0.8 in (20.3 mm) 2.0 in (50.8 mm) ± 1.0 % C 1.4 in (35.6 mm) 2.5 in (63.5 mm) ± 2.0 % Measurement uncertainty assumes centralized primary conductor at optimum position, no external electrical or magnetic field, and within operating temperature range. Figure 2. Position Sensitivity DC Current Range ..................................................... 999.9 A Resolution ............................................... 0.1 A Accuracy ................................................. 2 % ± 5 digits AC Voltage Range ..................................................... 600 V /1000 V Resolution ............................................... 0.1 V / 1 V Accuracy ................................................. 1.5 % ± 5 digits (20 to 500 Hz) DC Voltage Range ..................................................... 600.0 V /1000 V Resolution ............................................... 0.1 V / 1 V Accuracy ................................................. 1 % ± 5 digits Frequency – Via Jaw Range ..................................................... 5.0 to 500.0 Hz Resolution ............................................... 0.1 Hz Accuracy ................................................. 0.5 % ± 5 digits 6 Remote Display True-rms Clamp Meter Specifications Trigger Level ........................................... 5 to 10 Hz, ≥10 A 10 to 100 Hz, ≥5 A 100 to 500 Hz, ≥10 A Frequency via iFlex Range .................................................... 5.0 to 500.0 Hz Resolution .............................................. 0.1 Hz Accuracy ................................................ 0.5 % ± 5 digits Trigger Level .......................................... 5 to 20 Hz, ≥ 25 A 20 to 100 Hz, ≥ 20 A 100 to 500 Hz, ≥ 25 A Resistance Range ..................................................... 600 Ω/6 kΩ/60 kΩ Resolution ............................................... 0.1 Ω/1 Ω/10 Ω Accuracy ................................................. 1 % ± 5 digits Mechanical Specifications Size (L x W x H) ..................................... 277 mm *88 mm * 43 mm (55 mm for remote unit) Weight ..................................................... 350 g Jaw Opening ........................................... 34 mm iFlex Diameter ......................................... 7.5 mm iFlex Cable Length (head to electronics connector) .............. 1.8 m Environmental Specifications Operating Temperature........................... -10 °C to +50 °C Storage Temperature .............................. -40 °C to +60 °C Operating Humidity ................................. Non condensing (< 10 °C) ≤ 90 % RH (at 10 °C to 30 °C) ≤ 75 % RH (at 30 °C to 40 °C) ≤ 45 % RH (at 40 °C to 50 °C) (Without Condensation) Operating Altitude ................................... 2000 meters Storage Altitude ...................................... 12,000 meters EMI, RFI, EMC, RF ................................. EN 61326-1:2006, EN 61326-2-2:2006 ETSI EN 300 328 V1.7.1:2006 ETSI EN 300 489 V1.8.1:2008 FCC Part 15 Subpart C Sections 15.207, 15.209, 15.249 FCCID: T68-F381 RSS-210 IC: 6627A-F381 Temperature Coefficients........................ Add 0.1 x specified accuracy for each degree C above 28 °C or below 18 °C Wireless Frequency ................................ 2.4 GHz ISM Band 10 meter range Safety Compliance .................................. ANSI/ISA S82.02.01:2004 CAN/CSA-C22.2 No. 61010-1-04 IEC/EN 61010-1:2001 to 1000V CAT III, 600V CAT IV. Double Insulation Clearance ................... Per IEC 61010-2-032 Double Insulation Creepage ................... Per IEC 61010-1 Agency Approvals ................................... P, ), , ®, Ã (KCC-CRM-T68-F381) 7 381 Calibration Manual Required Equipment The equipment listed in Table 2 is required for performance tests and calibration adjustment. Table 2. Required Equipment Equipment Required Characteristics Recommended Model Calibrator 4.5-digit resolution Fluke 552xA Calibrator Wired coil 50 turns 5500A/COIL Test Probe for iFlex 2 mm to 4 mm Slim reach probe TP2, PN650892 Test Lead Test Lead w/retractable sheath 6358, PN1903307 Performance Tests XWWarning To prevent possible electrical shock, fire, or personal injury, do not perform the performance test procedures unless the Product is fully assembled. The following performance tests verify the complete operation of the Product and check the accuracy of each function against the specifications of the Product. See Table 3. If the Product fails any part of the test, calibration adjustment and/or repair is indicated. See “Calibration Adjustment”. Table 3 shows the Performance tests for the product. Table 4 shows the Performance tests for the iFlex. Figures 3 and 4 show the performance test connections for ac amps and dc amps. Figure 5 shows the performance test connections for ac volts, dc volts, and frequency. Y ER L A ET SP M DI P E AM x le OT L iF M SC RE RM 1T 38 +/ Figure 3. Performance Test Connections for AC Amps and DC Amps 8 0 • ghn10.eps Remote Display True-rms Clamp Meter Performance Tests 50-Turn Current Coil Conductor 10 6 00 00 V A CA T Y ER L A ET SP M DI P E AM x le OT L iF M SC RE RM 1T 38 10 6 00 00 V A 5522A Polarity is Reversed +/ 0 Figure 4. Performance Test Connections for AC Amps, DC Amps, and Frequency • ghn07.eps 9 381 Calibration Manual 5522A +/ 0 Figure 5. Performance Test Connections for AC Voltage, DC Voltage, and Frequency 10 • ghn15.eps Remote Display True-rms Clamp Meter Performance Tests Table 3. Performance Tests Test Nominal (Switch Position) Calibrator Output Value UUT Meter Reading Limits Low High 20 V 20 V, 20 Hz 19.2 20.8 10 V 10 V, 50 Hz 9.4 10.7 600 V 600 V, 50Hz 590.5 609.5 1000 V 1000 V, 50Hz 980 1020 10 V 10 V, 500 Hz 9.4 10.7 600 V 600 V, 500 Hz 590.5 609.5 1000 V 1000 V, 500 Hz 980 1020 -1000 V -1000 V -1015 -985 -600 V -600 V -606.5 -593.5 -10 V -10 V -10.6 -9.4 10 V 10 V 9.4 10.6 600 V 600 V 593.5 606.5 1000 V 1000 V 985 1015 0e 0e -0.5 0.5 10 e 10 e 9.4 10.6 100 e 100 e 98.5 101.5 590 e 590 e 583.6 596.4 1000 e 1000 e 985 1015 Ohms 3000 e 3000 e 2965 3035 6000 e 6000 e 5935 6065 10 ke 10 ke 9.85 10.15 30 ke 30 ke 29.65 30.35 60 ke 60 ke 59.35 60.65 K AC Volts L DC Volts 11 381 Calibration Manual Table 3. Performance Tests (cont.) Test Nominal (Switch Position) Calibrator Output Value UUT Meter Reading Limits Low High 10 A 0.2 A, 50 Hz 9.3 10.7 100 A 2 A, 50 Hz 97.5 102.5 AC Amps 600 A 12 A, 50 Hz 587.5 612.5 (with 50Turn Coil) 900 A 18 A, 50 Hz 881.5 918.5 975 A 19.5 A, 50 Hz 955.0 995.0 10 A 0.2 A, 440 Hz 9.0 11.0 -975 A -19.5 A -995.0 -955.0 -600 A -12 A -612.5 -587.5 -100 A -2 A, -102.5 -97.5 -10 A -0.2 A -10.7 -9.3 0A 0 A[1] -0.5 0.5 10 A 0.2 A 9.3 10.7 100 A 2A 97.5 102.5 600 A 12 A 587.5 612.5 900 A 18 A 881.5 918.5 975 A 19.5 A 955.0 995.0 50 Hz 0.1 A, 50 Hz 49.3 50.8 DC Amps (with 50Turn Coil) Frequency (with 50Turn Coil) [1] 12 The 0 A dc test must be performed with a single wire connected from 552XA AUX HI to AUX LO and the 381 clamped around the wire. Remote Display True-rms Clamp Meter Performance Tests Performance tests for the iFlex are in Table 4. Connect the 5520A A ac output to the 50turn coil. Figures 6 and 7 show the performance test connections for the iFlex. For the iFlex simulated tests you need the leads and probes listed in the required equipment list. They are used to connect the calibrator output to the iFlex input. Calibrator Output HI goes to the iFlex 2 mm jack (on the far left) and the Calibrator Output LO goes to the black COM jack. See the notes in Table 4. 50-Turn Current Coil Conductor Figure 6. Performance Test Connections for the iFlex ghn13.eps 13 381 Calibration Manual 5522A +/ 0 • ghn14.eps Figure 7. Current Test Simulated with Voltage Table 4. iFlex Performance Tests Test Nominal (Switch Position) 10 A AAC/R-coil Freq./Rcoil Calibrator Output Value 0.2 A, 50 Hz [1] [1] UUT Meter Reading Limits Low High 9.2 10.8 581.5 618.5 600 A 12 A, 50 Hz 995 A 19.9 A, 50 Hz [1] 964.6 1025.4 2500 A 75 mV, 50 Hz [2] 2420 2580 10 A 0.2 A, 500 Hz [1] 9.2 10.8 2420 2580 49.3 50.8 2500 A 750 mV, 500 Hz 50 Hz 50 Hz, 0.4 A [1] [2] [1] Connect the 552XA AAC output to the 50-turn coil. Connect the iFlex coil from the 381 to the 50-Turn Coil. See connections in Figure 6. [2] Simulated by voltage. Connect the 552XA VAC output to the 381. See the connection in Figure 7. 14 Remote Display True-rms Clamp Meter Calibration Adjustment Calibration Adjustment Calibration Password Operation Procedure A password is required to access the Calibration adjustment section of the Product. This section explains how this functionality works. To enter a password: 1. Push and turn the rotary switch to . The display shows “CAL”. 2. Push to enter the password entry mode. The display shows “????”. 3. Enter the 4-digit password. For this step, the keys are mapped to the corresponding digits: - 1 - 2 - 3 - 4 - 5 • If you enter a incorrect password, push or . The display shows “????” and you can re-enter the password. • If you enter the correct password, push to continue calibration (step 5) or push to change the password. See Change the Password. 4. Push to enter calibration mode. 5. Once the Product has entered calibration mode, push to show the calibration step number. Push to confirm a calibration value. 15 381 Calibration Manual Change the Password To change the password: 1. The display shows “----“. 2. Enter the 4-digit password. For this step, the keys are mapped to the corresponding digits: - 1 - 2 - 3 - 4 - 5 After all 4 digits are entered, the leading “-“ icon appears on the display. 3. Push to store the new password. 4. After the new password is entered, the Product reboots and the display briefly shows “F381” and then changes to the current selected function. At any step during this procedure, turning rotary switch to OFF terminates the Calibration Password mode. Two Special Passwords The Default Password is 1234. It is used when the Product shows “CAL ERR”, which means that the calibration parameter is corrupted. Entering the default password takes you to the calibration mode. After the Product is calibrated, “CAL ERR” disappears. The Master Password is 4132. If the password is forgotten, you can enter the Master Password after “????” shows on the display. Then push and the password is restored to the Default Password: 1234. The Master Password is protected, and you cannot change the Calibration Password to this combination. Adjustment Procedure The Product features a closed-case calibration procedure. To adjust Product calibration: 1. Turn the Product ON. 2. Push while turning the Rotary Switch to . 3. Push . 4. Enter the Calibration Password. 5. Push again to enter calibration mode. 16 Remote Display True-rms Clamp Meter Calibration Adjustment 6. Turn the Rotary Switch to the function you wish to calibrate. If you wish to adjust Jaw balance, see Balance Adjustment. 7. Push . 8. See Table 5 and apply the required inputs. 9. Push to confirm the value and move the next calibration point. 10. When you are finished with the calibration adjustment, push and then push to confirm the change. If you enter the calibration mode but do not wish to save the data, simply turn the Product OFF. Balance Adjustment 1. Push to enter the balance calibration mode. The display shows “up”. 2. Place the upper part of the jaw close to coil. 3. Wait for the reading to settle. 4. Push to record the reading. The display shows “don”. 5. Place the lower part of jaw close to coil. 6. Wait for the reading to settle. 7. Push to record the reading. 8. Repeat these steps, until the display shows “End”. Note It can take multiple cycles before the display shows “End”. 9. Push to exit balance adjustment. 17 381 Calibration Manual Table 5. Adjustment Procedure Test (Switch Position) Action L C-01 0 V dc DC Volts C-02 1000 V dc C-03 600 V, 60 Hz C-04 600 V, 150 Hz C-05 600 V, 250 Hz C-06 600 V, 350 Hz K AC Volts C-07 600 V, 440 Hz C-08 10 e C-09 400 e C-10 1 ke C-11 6 ke Ohms C-12 10 ke C-13 25 ke C-14 45 ke C-15 60 ke C-16 BALANCE (3 A, 60 Hz JAW A ac) C-17 TEMPERATURE (Note: There is no input required.) C-18 12 A, 60 Hz JAW A ac AC Amps C-19 3 A, 60 Hz JAW A ac With 50-turn Coil C-20 3 A, 150 Hz JAW A ac C-21 3 A, 250 Hz JAW A ac C-22 3 A, 350 Hz JAW A ac C-23 3 A, 440 Hz JAW A ac C-24 0 A JAW A dc (Note: The 0 A dc Calibration (C-24) must be performed with a single wire connected from 552XA AUX HI to AUX LO and UUT clamped around the wire.) C-25 12 A ,JAW A dc C-26 21.6 mV, 60 Hz; Simulates 600 A, 60 Hz A ac C-27 5.4 mV, 150 Hz; Simulates 150 A, 150 Hz A ac C-28 13.5 mV, 150 Hz; Simulates 150 A, 150 Hz A ac C-29 22.5 mV, 250 Hz; Simulates 150 A, 250 Hz A ac C-30 31.5 mV, 350 Hz Simulates 150 A, 350 Hz A ac C-31 39.69 mV, 440 Hz; Simulates 150 A, 440 Hz A ac DC Amps With 50-turn Coil iFlex Current Probe 18 Product LCD Reading Remote Display True-rms Clamp Meter Maintenance Maintenance Clean the Product WCaution To prevent possible damage to the Product or to equipment under test, do not use abrasive cleaners. They will damage the case. To clean the Product, use a cloth with a mild cleaning solution. Battery Replacement XW Warning To prevent possible explosion, fire, or personal injury, Replace the batteries when the low battery indicator ( or ) shows to prevent incorrect measurements. WCaution To prevent possible damage to the Product or to equipment under test: • Remove batteries to prevent battery leakage and damage to the Product if it is not used for an extended period. • Be sure that the battery polarity is correct to prevent battery leakage. To change the batteries, see Figure 8: 1. Make sure the Product is OFF. 2. Turn the Product over to access the battery compartment door screw. 3. Use a flat-head screwdriver to loosen the battery compartment door screw and lift off the battery compartment door. 4. Replace the three AA batteries. 5. Reattach the battery compartment door. 6. Tighten the battery compartment door screw. 19 381 Calibration Manual ghn03.eps Figure 8. Changing the Batteries User Replaceable Parts User replaceable parts are listed in Table 6. Table 6. User Replaceable Parts Fluke Part Number 20 Description Qty 2838018 Battery, AAA 1.5V 5 3625529 Battery Door - Display Module 1 3766406 Battery Door - Main Base 1 3766445 Remote Display 1 3752973 Soft Case 1 3538357 Users Manual 1 3782019 TL175 test leads 1 3798105 Fluke I2500-18 Rogowski coil 1 1670641 Alligator,2 mm jack, red boot 1 1670652 Alligator,2 mm jack, black boot 1
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