Fluke Electronics F381 Clamp on multi-meter with remote display User Manual 0master
Fluke Electronics Clamp on multi-meter with remote display 0master
User Manual
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| Date Submitted | 2010-07-12 00:00:00 |
| Date Available | 2010-08-26 00:00:00 |
| Creation Date | 2010-06-08 07:37:15 |
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381 Remote Display True-rms Clamp Meter Users Manual PN 3538357 July 2010 © 2010 Fluke Corporation. All rights reserved. Printed in China. Specifications are subject to change without notice. All product names are trademarks of their respective companies. LIMITED WARRANTY AND LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship for three years from the date of purchase. This warranty does not cover fuses, disposable batteries, or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling. Resellers are not authorized to extend any other warranty on Fluke’s behalf. To obtain service during the warranty period, 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 problem. THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER WARRANTIES, SUCH AS FITNESS FOR A PARTICULAR PURPOSE, ARE EXPRESSED OR IMPLIED. FLUKE IS NOT LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM ANY CAUSE OR THEORY. Since some states or countries do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages, this limitation of liability may not apply to you. Fluke Corporation P.O. Box 9090 Everett, WA 98206-9090 U.S.A. 11/99 Fluke Europe B.V. P.O. Box 1186 5602 BD Eindhoven The Netherlands Table of Contents Title Page Introduction................................................................................................................. How to Contact Fluke ................................................................................................. Safety Information ...................................................................................................... Radio Frequency Data ............................................................................................... Features ..................................................................................................................... Remote Display ...................................................................................................... Hazardous Voltage Indicator .................................................................................. Flexible Current Probe ........................................................................................... Auto Power Off ....................................................................................................... Backlight................................................................................................................. Display Hold ........................................................................................................... MIN MAX AVG ....................................................................................................... DC Current Zero ..................................................................................................... Inrush ..................................................................................................................... Low Battery Indicators............................................................................................ 10 10 10 11 11 11 11 12 12 381 Users Manual Display.................................................................................................................... Measurements............................................................................................................ AC and DC Current (Jaw) ...................................................................................... AC Current (Flexible Current Probe) ...................................................................... AC and DC Voltage ................................................................................................ Resistance/Continuity............................................................................................. Inrush Current Measurement (Jaw and Flexible Current Probe) ........................... Frequency Measurement (Jaw and Flexible Current Probe) ................................. Maintenance............................................................................................................... Cleaning the Meter and Flexible Current Probe ..................................................... Battery Replacement.............................................................................................. User-Replaceable Parts ............................................................................................. Specifications ............................................................................................................. Electrical Specifications.......................................................................................... Mechanical Specifications ...................................................................................... Environmental Specifications ................................................................................. ii 17 19 19 22 23 26 26 28 28 28 29 31 32 32 37 38 List of Tables Table 1. 2. 3. 4. 5. Title Page Symbols.............................................................................................................. Meter Features ................................................................................................... Rotary Function Switch ...................................................................................... Display................................................................................................................ User-Replaceable Parts ..................................................................................... iii 14 16 18 31 381 Users Manual iv List of Figures Figure 1. 2. 3. 4. 5. 6. 7. 8. 9. Title Page Remote Display .................................................................................................. Meter Features ................................................................................................... Display................................................................................................................ Current Measurement with Jaw.......................................................................... Flexible Current Probe Connection .................................................................... Measurement with Test Leads (AC Voltage Shown).......................................... Inrush Current Measurement ............................................................................. Battery Replacement.......................................................................................... Position Sensitivity ............................................................................................. 13 17 21 24 25 27 30 34 381 Users Manual vi Introduction Warning Read "Safety Information" before you use the Meter. The Fluke 381 is a handheld, battery-operated Clamp Meter (the Meter) that has a remote-display module and detachable iFlex (Flexible Current Probe). The Remote Display can be removed from the Meter body and read away from the measurement source. This lets the display be easily read in difficult-measurement situations such as a hazardous environments, or very tight spaces. The Flexible Current Probe makes it possible to measure higher current (up to 2500 A ac) and larger cables that traditional jawed meters cannot measure. How to 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: +81-3-3434-0181 381 Users Manual Singapore: +65-738-5655 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. 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 Meter and in this manual are explained in Table 1. Warning To prevent possible electrical shock or personal injury, follow these guidelines: Use the Meter only as specified in this manual or the protection provided by the Meter can be compromised. Examine the case before you use the Meter. Look for cracks or missing plastic. Carefully look at the insulation around the connectors. Never measure ac current while the test leads are inserted into the input jacks. Make sure the battery door is closed and latched before operating the Meter. Remote Display True-rms Clamp Meter Safety Information Remove the test leads from the Meter before the battery door is opened. Examine the test leads for damaged insulation or exposed metal. Check test lead continuity. Replace damaged test leads before using the Meter. Do not use the Meter if it operates incorrectly. Protection can be compromised. When in doubt, have the Meter serviced. Do not use the Meter around explosive gas, vapor or in damp or wet environments. Use only type AAA batteries, properly installed in the Meter case, to power the Meter. To avoid false readings that can lead to electrical shock and injury, replace the batteries as soon as the low battery indicator ( or ) appears. When servicing the Meter, use only specified replacement parts. See Table 5. Have the Meter serviced only by qualified service personnel. Be careful around voltages > 30 V ac rms, 42 V ac peak, or 60 V dc. Such voltages pose a shock hazard. Do not apply more than the rated voltage, as marked on the Meter, between the terminals or between any terminal and earth ground. When using the probes, keep fingers behind the finger guards on the probes. 381 Users Manual Connect the common test lead before connecting the live test lead. When disconnecting test leads, disconnect the live test lead first. Do not work alone so assistance can be rendered in an emergency. Use extreme caution when working around bare conductors or bus bars. Contact with the conductor could result in electric shock. Adhere to local and national safety codes. Individual protective equipment must be used to prevent shock and arc blast injury where hazardous live conductors are exposed. When measuring, keep fingers behind the Tactile Barrier. See Figure 2. Disconnect circuit power and discharge all high-voltage capacitors before you do diode tests or measure resistance, continuity, or capacitance. Do not measure ac/dc current in circuits carrying more than 1000 V or 1000 A with the Meter Jaw. Never operate the Meter with the back cover removed or the case open. Do not measure ac current in circuits carrying more than 1000 V or 2500 A with the Flexible Current Probe. Do not apply the Flexible Current Probe around or remove from HAZARDOUS LIVE conductors. Take special care during fitting and removal of the Flexible Current Probe. Deenergize the installation under test or wear suitable protective clothing. Remote Display True-rms Clamp Meter Safety Information Caution To avoid possible damage to the Meter or to equipment under test: Use the proper jacks, function, and range for the measurement application. Table 1. Symbols Symbol Meaning Symbol Meaning Earth ground DC (Direct Current) Hazardous voltage Conforms to European Union directives. Risk of Danger. Important information. See Manual. Conforms to relevant North American Safety Standards. Battery. Low battery when shown. AC (Alternating Current) AC and dc current. Double insulated Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling information. 381 Users Manual Symbol Meaning CAT III IEC Measurement Category III 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. Symbol Meaning 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. IEC Measurement Category IV CAT IV equipment has protection against transients from the primary supply level, such as an electricity Meter or an overhead or underground utility service. 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. Remote Display True-rms Clamp Meter Radio Frequency Data Radio Frequency Data Note Changes or modifications to the wireless 2.4 GHz radio not expressly approved by Fluke Corporation could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the two conditions that follow: 1. This device can not cause interference. 2. This device must accept any interference, including interference that can cause undesired operation of the device. Class B digital device: A digital device that is marketed for operation in a residential environment not withstanding use in commercial, business and industrial environments. Examples of such devices include, but are not limited to, personal computers, calculators, and equivalent electronic devices that are marketed for operation by the general public. The Meter was tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, can cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment 381 Users Manual off and on, the user is encouraged to try to correct the interference by one or more of the measures that follow: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Consult the dealer or an experienced radio/TV technician for help. The term "IC:" before the radio certification number only signifies the device meets Industry's Canada technical specifications. Features The following sections explain the Meter features in detail. See Figure 2 and Table 2. Remote Display The Meter uses low-power 802.15.4 wireless technology to let the display module operate in a different location than the Meter base. Although there is control of some Meter functions (Hold, MIN MAX AVG, and Backlight), complete remote control of the Meter is not available through the display module. The wireless radio signal does not hinder Meter measurements. Usually, the radio signal is off when the display module is docked to the Meter base. It is possible for the radio signal to be on when the display module is docked and the Rotary Function Switch is set to OFF. To make sure that the radio signal is off, remove the batteries from the Meter base and display module. Remote Display True-rms Clamp Meter Features The display module is synchronized with a Meter base when it is docked on the Meter base and turned on. Different display modules can be synchronized with a Meter base but, only one display module can be synchronized to a Meter base at the same time. The Meter base and display can be a maximum of 10 meters from each other before the radio signal connection is broken. This distance can change with the obstacles between the Meter base and display. There is a radio connection when shows in the display. To detach the display from the Meter base, see Figure 1. ghn10.eps Figure 1. Remote Display 381 Users Manual Hazardous Voltage Indicator When the Meter senses a voltage 30 V or a voltage overload (OL), is shown on the display and the red high-voltage LED () on the Meter base illuminates to tell you a hazardous voltage is at the Meter input. Flexible Current Probe Warning To avoid electrical shock, do not apply or remove from live hazardous conductors. The high-performance AC Flexible Current Probe utilizes the Rogowski principle and is used for accurate, non-intrusive measurement of sinusoidal, pulsed, and other complex waveforms. The flexible and lightweight measuring head allows quick and easy installation in hard-to-reach areas and works well with large conductors. For more information about the Flexible Current Probe, see “Current Measurement (Flexible Current Probe)”. Auto Power Off The Meter powers off if there is no button push or Rotary Function Switch operation for 20 minutes. If the Meter powers off, turn the Rotary Function Switch OFF and then back on again. Auto Power Off is disabled during Min Max Avg function use. To disable the Auto Power Off, hold down while turning on the Meter. 10 Remote Display True-rms Clamp Meter Features Backlight Push to toggle the Backlight on and off. The Backlight automatically goes off after 2 minutes. To disable the Backlight Auto Off feature, hold down while turning on the Meter. Display Hold To capture and hold the present display reading, push while taking a reading. Push again to return to the live reading. MIN MAX AVG Min Max Avg mode can capture the minimum, maximum, and average readings of a given output signal over an extended time. Push to enter Min Max Avg mode, push again to toggle between min and max readings. Push a third time to display the average reading. To exit Min Max Avg mode, push and hold for 2 seconds. When Min Max Avg mode is active, the Auto Power Off feature is disabled. DC Current Zero Push to remove any dc offset that could affect the accuracy of dc readings. 11 381 Users Manual Inrush Inrush Current is surge current that occurs when an electrical device is first powered on. The Meter can capture this surge current reading. Current spikes from motor drives are one example of such an event. The Inrush function takes approximately 400 samples over a 100 ms period and calculates the starting current envelope. Low Battery Indicators The Meter uses two low battery symbols: and . When appears, the batteries in the Meter base should be changed. Low batteries on the Meter base will affect the readings. When is displayed, the batteries for the removable display should be changed. Measurements are not affected by low batteries in the display. 12 Remote Display True-rms Clamp Meter Features CAT 1000 V CAT 600 V ZERO iFlex REMOTE DISPLAY 381 TRMS CLAMP METER 1000 A 16 14 11 13 10 12 15 ghn02.eps Figure 2. Meter Features 13 381 Users Manual Table 2. Meter Features Item 14 Description Current sensing Jaw Tactile Barrier Rotary Function Switch, see Table 3. Hazardous-voltage indicator Display release button Display Backlight button: turns the Backlight on and off. The Backlight stays on for 2 minutes when there is no button or switch interaction and then shuts off. Hold button: freezes the display reading and releases the reading when pushed a second time. Min Max button: when first pushed, the Meter shows maximum input. With subsequent pushes, the minimum and the average inputs are shown. Hold for 2 seconds to exit min max mode. This function works in current, voltage, and frequency modes. Remote Display True-rms Clamp Meter Features Item Description Zero/Shift button: removes dc offset from dc current measurements. Also used to shift and corresponds to the yellow items on the Rotary Function Switch. Inrush button: push to enter inrush mode. Push a second time to exit inrush mode. Integration time is 100 ms. Jaw release Alignment marks: to meet accuracy specifications, the conductor must be aligned with these marks. Common terminal Volts/Ohm input terminal Flexible Current Probe input terminal 15 381 Users Manual Table 3. Rotary Function Switch Switch Position OFF AC voltage DC voltage 16 Function Meter is powered down Resistance and continuity AC current. Push to shift to frequency. DC current AC current and frequency measurement using the Flexible Current Probe. Push to shift to frequency. Remote Display True-rms Clamp Meter Features Display To view all segments on the display at once, push while turning the Meter on. See Figure 3 and Table 4. 15 14 13 12 11 10 ghn01.eps Figure 3. Display 17 381 Users Manual Table 4. Display Item 18 Description Inrush is active Item Description Meter base low-battery symbol Hold is active Measurement is taken at the Jaw. Volts RF signal is being sent to remote display. Amps Continuity Ohms, DC, AC, Hz Hazardous voltage is present. Main display Measurement is taken at the Flexible Current Probe. Remote display low-battery symbol Min, Max, or Avg reading is being shown. Min Max mode is active. Remote Display True-rms Clamp Meter Measurements Measurements Note Prior to first use, remove the battery isolator (small piece of plastic between the batteries and battery contacts). AC and DC Current (Jaw) Warning To avoid electric shock or personal injury: When making current measurements, disconnect the test leads from the Meter. Keep fingers behind Tactile Barrier. See Figure 2 and Table 2. Note When measuring current, center the conductor in the Jaw using the alignment marks on the Jaw. Before taking dc measurements, push to ensure correct readings. Zeroing the Meter removes dc offset from the reading. The Zero function works only in the dc current measurement Rotary Function Switch position. 19 381 Users Manual Note Before zeroing the Meter, make sure the Jaws are closed and there is no conductor inside the Jaw. To measure ac or dc current: 1. Turn the Rotary Function Switch to the proper function. You should see on the display, indicating that the measurement is coming from the Jaw. Note When the measured current is < 0.5 A, the center dot in the display icon will flash on and off. With current > 0.5 A, the center dot will be steady. 2. 3. 4. 5. If measuring dc, wait for the display to stabilize and then push to zero the Meter. Open the Jaw by pressing the Jaw Release and insert the conductor into the Jaw. Close the Jaw and center the conductor using the alignment marks. View the reading on the display. See Figure 4. Note Current flowing in opposite directions cancels each other. If current is moving in opposite directions, place one conductor into the clamp at a time. See Figure 4. 20 Remote Display True-rms Clamp Meter Measurements 10 AT CA 0 0 V 60 T 0V CAT 1000 V CAT 600 V 1000 A 10 38 00 TR EMO MS TE CL DISP AM LA PM Y E TE iFle ghn04.eps Figure 4. Current Measurement with Jaw 21 381 Users Manual AC Current (Flexible Current Probe) Warning To prevent possible electrical shock or personal injury: Do not apply the Flexible Current Probe around or remove from HAZARDOUS LIVE conductors. Take special care during fitting and removal of the Flexible Current Probe. De-energize the installation under test or wear suitable protective clothing. To use the Flexible Current Probe, follow these instructions: 1. Connect the Flexible Current Probe to the Meter. See Figure 5. 2. Connect the flexible part of the Flexible Current Probe around the conductor. If opening the end of the Flexible Current Probe to make the connection, make sure that you close and latch it. See the detail in Figure 5. You should be able to hear and feel the Flexible Current Probe lock snap into place. Note When measuring current, center the conductor in the Flexible Current Probe. If possible, avoid taking measurements close to other current-carrying conductors. 3. 22 Keep the probe coupling more than 2.5 cm (1 inch) away from the conductor. Remote Display True-rms Clamp Meter Measurements 4. . When the Rotary Function Switch is in the correct Turn the Rotary Function Switch to position, shows on the display, meaning that the readings are coming from the Flexible Current Probe. Note When the measured current is < 0.5 A, the center dot in the display icon () will flash on and off. With current > 0.5 A, the center dot will be steady. 5. Observe the current value on the Meter display. If the Flexible Current Probe does not perform as expected: 1. Inspect the coupling system to make sure that it is connected and closed correctly or for any damage. If any foreign material is present, the coupling system will not close properly. 2. Inspect the cable between the Flexible Current Probe and the Meter for any damage. 3. Check that the Rotary Function Switch of the Meter is in the correct position ( ). AC and DC Voltage To measure ac or dc voltage: 1. Turn the Rotary Function Switch to the proper voltage function ( or ). 2. Connect the black test lead to the COM terminal and the red test lead to the terminal. See Figure 6. 3. Measure the voltage by touching the probes to the desired test points of the circuit. View the reading on the display. 23 381 Users Manual ghn09.eps Figure 5. Flexible Current Probe Connection 24 Remote Display True-rms Clamp Meter Measurements ghn05.eps Figure 6. Measurement with Test Leads (AC Voltage Shown) 25 381 Users Manual Resistance/Continuity To measure resistance or continuity: 1. Turn the Rotary Function Switch to . 2. Remove power from the circuit being tested. 3. Connect the black test lead to the COM terminal and the red test lead to the terminal. 4. Measure the resistance by touching the probes to the desired test points of the circuit. 5. View the reading on the display. If the resistance is < 30 , continuity is indicated by a beeper continuously sounding. If the display reads OL, the circuit is open. Inrush Current Measurement (Jaw and Flexible Current Probe) The Meter can capture the initial inrush current when starting a device such as a motor or light ballast. To measure the inrush current: 1. With the device under test off, turn the Meter Rotary Function Switch to , , or if the Flexible Current Probe is being used for the measurement. 2. Center the Jaw or Flexible Current Probe around the device’s live wire. 3. Push on the Meter. 4. Turn on the device under test. The inrush current (spike) is displayed on the Meter display. See Figure 7. 26 Remote Display True-rms Clamp Meter Measurements Off CAT 1000 V CAT 600 V On 100 ms 1000 A REMOTE DISPLAY 381 TRMS CLAMP METER CAT 1000 V CAT 600 V 1000 A REMOTE DISPLAY 381 TRMS CLAMP METER iFlex INRUSH ghn11.eps Figure 7. Inrush Current Measurement 27 381 Users Manual Frequency Measurement (Jaw and Flexible Current Probe) To measure frequency: 1. Turn the Meter Rotary Function Switch to or if the Flexible Current Probe is being used for the measurement. 2. Center the Jaw or Flexible Current Probe around the measurement source. 3. Push on the Meter to shift to Hz. The frequency is displayed on the Meter display. Maintenance Warning To avoid possible electric shock or personal injury, repairs or servicing not covered in this manual should be performed only by qualified personnel. Cleaning the Meter and Flexible Current Probe Warning To avoid electrical shock, remove any input signals before cleaning. Caution To avoid damaging the Meter, do not use aromatic hydrocarbons or chlorinated solvents for cleaning. These solutions will react with the plastics used in the Meter. Do not immerse the Meter in water. 28 Remote Display True-rms Clamp Meter Maintenance Clean the instrument case with a damp cloth and mild detergent. Battery Replacement To replace the batteries in the Meter body, see Figure 8: 1. Turn the Meter OFF. 2. Use a flat head screwdriver to loosen the battery compartment door screw on the Meter base, and remove the door from the case bottom. 3. Remove the batteries. 4. Replace the batteries with three new AAA batteries. 5. Reattach the battery compartment door to the case bottom and tighten the screw. To replace the batteries in the display module, see Figure 8: 1. Turn the Meter off. 2. Using the two latches on the side of the Meter, remove the display module. 3. On the bottom of the display module, there is a flat section in the center of the module. With your thumb, push down and slide the door towards you to open the battery compartment, 4. Remove the batteries. 5. Replace the batteries with two new AAA batteries. 6. Slide the battery door back into place. 7. Dock the Display Module with the Meter base and turn the Meter on. 29 381 Users Manual ghn03.eps Figure 8. Battery Replacement 30 Remote Display True-rms Clamp Meter User-Replaceable Parts User-Replaceable Parts Table 5. User-Replaceable Parts Description Qty. Fluke Part Number Battery, AAA 1.5 V 2838018 Battery Door - Display Module 3625529 Battery Door - Meter Base 3766406 Fluke 381 Remote Display 3766445 Soft Case 3752973 User Manual 3538357 31 381 Users Manual 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 32 Remote Display True-rms Clamp Meter Specifications AC Current via Flexible Current Probe 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 33 381 Users Manual Position Sensitivity ghn12.eps Figure 9. Position Sensitivity 34 Remote Display True-rms Clamp Meter Specifications Distance from Optimum i2500-10 Flex i2500-18 Flex Error 0.5 in (12.7 mm) 1.4 in (35.6 mm) 0.5 % 0.8 in (20.3 mm) 2.0 in (50.8 mm) 1.0 % 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. 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 – 500 Hz) 35 381 Users Manual DC Voltage Range ..................................................... 600.0 V /1000 V Resolution ............................................... 0.1 V / 1 V Accuracy ................................................. 1 % 5 digits Frequency – Via Jaw Range ..................................................... 5.0 – 500.0 Hz Resolution ............................................... 0.1 Hz Accuracy ................................................. 0.5 % 5 digits Trigger Level ........................................... 5 – 10 Hz, 10 A 10 – 100 Hz, 5 A 100 – 500 Hz, 10 A 36 Remote Display True-rms Clamp Meter Specifications Frequency via Flexible Current Probe 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 /6 k/60 k Resolution ...............................................0.1 /1 /10 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 Flexible Current Probe Diameter ............7.5 mm 37 381 Users Manual Flexible Current Probe 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 38 Remote Display True-rms Clamp Meter Specifications 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 ................................... , , , 39 381 Users Manual 40
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