Fluke 381 Fluke 381 Users Manual

Fluke 381 Manual

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  • Fluke 381 | Fluke 381 Users Manual - Page 1
    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.
  • Fluke 381 | Fluke 381 Users Manual - Page 2
    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
  • Fluke 381 | Fluke 381 Users Manual - Page 3
    Page Introduction...1 How to Contact Fluke 1 Safety Information ...2 Radio Frequency Data 7 Features ...8 Remote Display ...8 Hazardous Voltage Indicator 10 Flexible Current Probe 10 Auto Power Off ...10 Backlight...11 Display Hold ...11 MIN MAX AVG ...11 DC Current Zero ...11 Inrush ...12
  • Fluke 381 | Fluke 381 Users Manual - Page 4
    and DC Voltage 23 Resistance/Continuity 26 Inrush Current Measurement (Jaw and Flexible Current Probe 26 Frequency Measurement (Jaw and Flexible Current Probe 28 Maintenance...28 Cleaning the Meter and Flexible Current Probe 28 Battery Replacement 29 User-Replaceable Parts 31 Specifications
  • Fluke 381 | Fluke 381 Users Manual - Page 5
    XWWarning 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
  • Fluke 381 | Fluke 381 Users Manual - Page 6
    ://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
  • Fluke 381 | Fluke 381 Users Manual - Page 7
    Remote Display True-rms Clamp Meter Safety Information • 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,
  • Fluke 381 | Fluke 381 Users Manual - Page 8
    . • 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
  • Fluke 381 | Fluke 381 Users Manual - Page 9
    Remote Display True-rms Clamp Meter Safety Information Table 1. Symbols Symbol B F Meaning AC (Alternating Current) DC (Direct Current) Symbol J P Meaning Earth ground AC and dc current. X Hazardous voltage P Conforms to European Union directives. W Risk of Danger. Important information
  • Fluke 381 | Fluke 381 Users Manual - Page 10
    381 Users Manual Symbol such as an electricity Meter or an overhead or underground utility service. ® Examined and licensed by TÜV Product Services. ; Conforms to rating of any combination of test probe, test probe accessory, current clamp accessory, and the Meter is the LOWEST rating of any
  • Fluke 381 | Fluke 381 Users Manual - Page 11
    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.
  • Fluke 381 | Fluke 381 Users Manual - Page 12
    381 Users Manual off and on, the user is encouraged to try to correct the interference by one or more 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
  • Fluke 381 | Fluke 381 Users Manual - Page 13
    Remote Display True-rms Clamp Meter Features 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.
  • Fluke 381 | Fluke 381 Users Manual - Page 14
    381 Users Manual Hazardous Voltage Indicator When the Meter senses a voltage ±30 V or a voltage overload (OL), Y 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 XWWarning To avoid
  • Fluke 381 | Fluke 381 Users Manual - Page 15
    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 display the
  • Fluke 381 | Fluke 381 Users Manual - Page 16
    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
  • Fluke 381 | Fluke 381 Users Manual - Page 17
    Remote Display True-rms Clamp Meter Features 1 2 3 5 6 7 4 1000 A iFlex REMOTE DISPLAY TRMS CLAMP METER 381 ZERO CAT 1000 V CAT 600 V 16 14 13 15 11 10 12 Figure 2. Meter Features 9 8 ghn02.eps 13
  • Fluke 381 | Fluke 381 Users Manual - Page 18
    381 Users Manual Item A B C D E F G H I Table 2. Meter Features 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
  • Fluke 381 | Fluke 381 Users Manual - Page 19
    Remote Display True-rms Clamp Meter Features Item J K L M N O P Description Zero/Shift button: removes dc offset from dc current measurements. Also used accuracy specifications, the conductor must be aligned with these marks. Common terminal Volts/Ohm input terminal Flexible Current Probe input
  • Fluke 381 | Fluke 381 Users Manual - Page 20
    381 Users Manual Switch Position OFF K L K A C D Table 3. Rotary Function Switch Meter is powered down AC voltage DC voltage Function Resistance and continuity AC current. Push Z to shift to frequency. DC current AC current and frequency measurement using the Flexible Current Probe. Push Z to
  • Fluke 381 | Fluke 381 Users Manual - Page 21
    Remote Display True-rms Clamp Meter Features Display To view all segments on the display at once, push H while turning the Meter on. See Figure 3 and Table 4. 15 14 13 12 11 10 1 2 3 9 8 Figure 3. Display 4 5 6 7 ghn01.eps 17
  • Fluke 381 | Fluke 381 Users Manual - Page 22
    381 Users Manual Item A B Table 4. Display Description Item Inrush is active H Hold is active I C Volts J D Amps K E Ohms, DC, AC, Hz L F Main display M G Remote display low-battery symbol N O Description Meter base low-battery symbol Measurement is taken at the Jaw. RF
  • Fluke 381 | Fluke 381 Users Manual - Page 23
    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) XW Warning To avoid electric shock or personal injury: • When making current
  • Fluke 381 | Fluke 381 Users Manual - Page 24
    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 X on the display, indicating that the measurement is coming from the Jaw.
  • Fluke 381 | Fluke 381 Users Manual - Page 25
    CAT 1000 V CAT 600 V 1000 A Remote Display True-rms Clamp Meter Measurements 6C01A0C0TV0A0TV 381 TRRMEMS OCTLEAMDPISPMLEATYER iFlex 1000 A Figure 4. Current Measurement with Jaw ghn04.eps 21
  • Fluke 381 | Fluke 381 Users Manual - Page 26
    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
  • Fluke 381 | Fluke 381 Users Manual - Page 27
    Remote Display True-rms Clamp Meter Measurements Note When the measured current is < 0.5 A, the center dot in the display icon (X) 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
  • Fluke 381 | Fluke 381 Users Manual - Page 28
    381 Users Manual 2 1 Figure 5. Flexible Current Probe Connection ghn09.eps 24
  • Fluke 381 | Fluke 381 Users Manual - Page 29
    Remote Display True-rms Clamp Meter Measurements Figure 6. Measurement with Test Leads (AC Voltage Shown) ghn05.eps 25
  • Fluke 381 | Fluke 381 Users Manual - Page 30
    381 Users Manual Resistance/Continuity To measure resistance or Probe is being used for the measurement. 2. Center the Jaw or Flexible Current Probe around the device's live wire. 3. Push E on the Meter. 4. Turn on the device under test. The inrush current (spike) is displayed on the Meter display
  • Fluke 381 | Fluke 381 Users Manual - Page 31
    Remote Display True-rms Clamp Meter Measurements Off 3 On CAT 1000 V CAT 600 V 1000 A 381 REMOTE DISPLAY TRMS CLAMP METER 1 INRUSH 2 CAT 1000 V CAT 600 V 1000 A 381 REMOTE DISPLAY TRMS CLAMP METER iFlex 100 ms 4 Figure 7. Inrush Current Measurement ghn11.eps 27
  • Fluke 381 | Fluke 381 Users Manual - Page 32
    Jaw or Flexible Current Probe around the measurement source. 3. Push Z on the Meter to shift to Hz. The frequency is displayed on the Meter display. Maintenance XW Warning To avoid possible electric shock or personal injury, repairs or servicing not covered in this manual should be performed only
  • Fluke 381 | Fluke 381 Users Manual - Page 33
    Remote Display True-rms Clamp Meter Maintenance 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
  • Fluke 381 | Fluke 381 Users Manual - Page 34
    381 Users Manual Figure 8. Battery Replacement ghn03.eps 30
  • Fluke 381 | Fluke 381 Users Manual - Page 35
    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 5 2838018 Battery Door - Display Module 1 3625529 Battery Door - Meter Base 1 3766406 Fluke 381 Remote Display 1
  • Fluke 381 | Fluke 381 Users Manual - Page 36
    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
  • Fluke 381 | Fluke 381 Users Manual - Page 37
    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
  • Fluke 381 | Fluke 381 Users Manual - Page 38
    381 Users Manual Position Sensitivity A B C Figure 9. Position Sensitivity ghn12.eps 34
  • Fluke 381 | Fluke 381 Users Manual - Page 39
    Remote Display True-rms Clamp Meter Specifications Distance from Optimum A i2500-10 Flex 0.5 in (12.7 mm) i2500-18 Flex 1.4 in (35.6 mm) Error ± 0.5 % B 0.8 in and within operating temperature range. DC Current Range 999.9 A Resolution 0.1 A Accuracy 2 % ± 5 digits AC Voltage Range 600 V /
  • Fluke 381 | Fluke 381 Users Manual - Page 40
    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
  • Fluke 381 | Fluke 381 Users Manual - Page 41
    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
  • Fluke 381 | Fluke 381 Users Manual - Page 42
    381 Users Manual Flexible Current Probe Cable Length (head to electronics connector 1.8 m Environmental Specifications Operating °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
  • Fluke 381 | Fluke 381 Users Manual - Page 43
    Remote Display True-rms Clamp Meter Specifications 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-
  • Fluke 381 | Fluke 381 Users Manual - Page 44
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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.
381
Remote Display
True-rms
Clamp Meter
Users Manual