® 353/355 Clamp Meter Users Manual PN 2842223 October 2007 © 2007 Fluke Corporation, All rights reserved. Printed in China. 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.
Table of Contents Title Introduction .................................................................................................................... Contacting Fluke ............................................................................................................ Safety Information .......................................................................................................... Features ................................................................................................
353/355 Users Manual ii
List of Tables Table Title 1. 2. 3. 4. Explanation of Symbols ......................................................................................................... Features and Buttons ............................................................................................................ Rotary Switch Positions......................................................................................................... Display..........................................................................
353/355 Users Manual iv
List of Figures Figure Title Page 1. 2. 3. 4. 5. 6. 7. 8. Feature Locations.................................................................................................................. The Display ........................................................................................................................... Connecting the Meter ............................................................................................................ Measuring Inrush Current...........................
353/355 Users Manual vi
Clamp Meter Introduction Contacting Fluke The Fluke 353 and 355 are hand-held battery-operated Clamp Meters (the Meter). Both Meters measure ac, dc true rms, inrush current and frequency; The 355 also measures ac, dc, true rms voltage, and resistance.
353/355 Users Manual Safety Information XWWarnings: Read First To avoid possible electric shock or personal injury: • Use the Meter only as specified in this manual or the protection provided by the Meter might be impaired. • Avoid working alone so assistance can be rendered. • Never measure ac current while the test leads are inserted into the input jacks. • Do not use the Meter in wet or dirty environments. • Do not use the Meter if it appears damaged. Inspect the Meter before use.
Clamp Meter Safety Information • • • • • Do not operate the Meter around explosive gas, vapor, or dust. When using probes, keep fingers behind the finger guards. When making electrical connections, connect the common test lead before connecting the live test lead; when disconnecting, disconnect the live test lead before disconnecting the common test lead. Disconnect circuit power and discharge all high-voltage capacitors before testing resistance, continuity, or diodes.
353/355 Users Manual Table 1. Explanation of Symbols Symbol W X , T B J B F ~ P ; Explanation Risk of danger. Important information. Refer to operation instructions. Hazardous voltage Application and removal from hazardous live conductors permitted Double insulated Battery Earth Ground Alternating Current Direct Current Do not dispose of this product as unsorted municipal waste. Go to Fluke’s web site for recycling information.
Clamp Meter Features Table 2. Features and Buttons Features See Figure 1 and Tables 2 and 3 for a list of features. Number A B 16 C 1 355 D AC/DC CLAMP METER MAXMINAVGLIVE Manual Range Auto Range 15 E k TRUE RMS 600 V CAT 2000 A 14 A A AC+DC A V OFF F V V AC+DC 13 2 12 3 10 9 RANGE ZERO INRUSH Hz MIN MAX COM FILTER G H 4 HOLD 11 5 6 V 600 V CAT 1000 V CAT I 8 7 fbq03.eps Figure 1.
353/355 Users Manual Table 3. Rotary Switch Positions Table 2. Features and Buttons (cont.) Number L M N O P N/A 6 Description Backlight button - Turns the backlight on and off. The backlight goes off after 5 minutes. Jaw release Tactile barrier XW Warning: To avoid injury, do not hold the Meter anywhere above the tactile barrier. Display Jaw wear indicator. XW Warning: To avoid injury, do not use the Meter if the wear indicator in the jaw opening is not visible.
Clamp Meter Features Table 4. Display Display Figure 2 and Table 4 explain the display. 1 2 3 4 16 5 15 14 MAXMINAVGLIVE 12 11 7 F G H I J K L M N O P 9 10 fbq01.eps Figure 2. The Display Zero mode is active Low pass filter is active Hold mode is active Min Max mode is active Min, Max, Avg, or Live modes. Live mode is active with Min Max and designates the realtime reading.
353/355 Users Manual XWWarning Using the Meter XW Warning To avoid electric shock or personal injury: • When measuring current, center the conductor in the clamp. • When making current measurements, disconnect the test leads from the Meter. • Keep fingers behind Tactile Barrier. See Meter Features. To avoid possible electric shock or personal injury, if current is moving in opposite directions, place only ONE conductor into the clamp at a time.
Clamp Meter Using the Meter Measuring Inrush Current Inrush current is surge current that occur when an electrical device is first powered on. Once the device has reached its normal working condition, the current stabilizes. See Figure 4. To capture the inrush current reading: 1. With the system under test powered down, place the source wire into the Meter jaws. 2. Turn the knob to A. 3. Press E on the Meter. 4. Power up the system under test. The inrush current is shown on the Meter display.
353/355 Users Manual Measuring AC and DC Voltage (355 only) To measure ac or dc voltage: 1. Turn the rotary function switch to W, V, or X. 2. Connect the black test lead to the COM terminal and the red test lead to the V terminal. Before connecting the probes to the measurement points, add any clips to the probes that are necessary. 3. Measure the voltage by touching the probes to the desired test points of the circuit. 4. View the reading on the display. 5.
Clamp Meter Using the Meter 355 AC/DC CLAMP METER Auto Range TRUE RMS 600 V CAT 2000 A A A AC+DC A V OFF V V AC+DC HOLD ZERO RANGE INRUSH Hz MIN MAX FILTER COM V 600 V CAT 1000 V CAT fbq06.eps Figure 6.
353/355 Users Manual Testing Continuity (355 only) XW Warning To avoid electrical shock when testing continuity in a circuit, make sure the power to the circuit is turned off and all capacitors are discharged. 355 AC/DC CLAMP METER TRUE RMS 600 V CAT 2000 A A A 12 AC/DC CLAMP METER Auto Range TRUE RMS 600 V CAT 2000 A AC+DC A A V OFF To test continuity: 1. Connect the black test lead to the COM terminal and the red test lead to the V terminal. 2.
Clamp Meter Using the Meter Measuring Resistance (355 only) XW Warning To avoid possible electric shock or personal injury, when measuring resistance in a circuit, make sure the power to the circuit is turned off and all capacitors are discharged. To measure resistance: 1. Turn the rotary function switch to e. 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 V terminal. 4.
353/355 Users Manual Cleaning the Meter Maintenance XW Warning To avoid electrical shock, or personal injury: • Repairs or servicing not covered in this manual should be performed only by qualified personnel. • Disconnect test leads from the Meter before removing its back cover. • Never use the Meter with the back cover removed. • • WCaution To avoid contamination or static damage of the Meter, do not touch the circuit board without proper static protection.
Clamp Meter Specifications Specifications Electrical Specifications Current Measurement 10 Hz to 100Hz Range Resolution 40 A 400 A 2000 A; 1400 ac rms Accuracy, A Trigger Level for Inrush Trigger Level for Hz Filter OFF Trigger Level for Hz Filter ON 10 mA 100 mA 1.5 % rdg + 15 digits 1.5 % rdg + 5 digits 0.50 A 5.0 A 2.50 A 2.5 A 0.50 A 2.5 A 1A 1.5 % rdg + 5 digits 5A 8A 8A Current Measurement 100.
353/355 Users Manual Voltage Measurement (355 only) 10 Hz to 100 Hz 600 and 1000 V ranges have 10 % over range to 660 and 1100 V respectively. Range 4V 40 V 400 V 600 V AC RMS 1000 V DC Resolution 1 mV 10 mV 100 mV 1V 1V Accuracy 1 % rdg + 10 digits 1 % rdg + 5 digits 1 % rdg + 5 digits 1 % rdg + 5 digits 1 % rdg + 5 digits Trigger Level for Hz 0.050 V 0.25 V 6V 6V N/A Voltage Measurement (355 only) 100.
Clamp Meter Specifications Continuity Beeper (355) General Specifications On at ≤ 30 Ω Off at ≥ 100 Ω Batteries: 6- 1.5 V AA NEDA 15 A or IEC LR6 Test Leads: Rated to 1000 V Weight: 1.8 lb (.814 kg) Jaw Size: 2.28 inches (58 mm) Dimensions (L x W x D): 12 inches x 3.75 inches x 2 inches (300 mm x 98 mm x 52 mm) Safety Rating: IEC 61010-2-032, 600 V CAT IV, 1000 V CAT III Frequency Measurement Measurement Range Resolution Accuracy 5.0 to 100 Hz Accuracy 100.1 Hz to 1 kHz Trigger Level 5.
353/355 Users Manual Standards and Agency Approval Specifications Design Standards and Compliance EN61010-032 CAT IV 600 V, IEC/EN 61326-1:1997 Agency Approvals P, ), ;, ~ Over-voltage Category IEC61010-1 CAT III 1000 V, CAT IV 600 V N10140 Environmental Specifications Operating Temperature Storage Temperature Operating Humidity Operating Altitude Storage Altitude IP Rating Drop Test Requirements EMI, RFI, EMC Temperature Coefficients 18 32 °F to + 122 °F (0 °C to +50 °C) -4 °F to 140 °F (-20 °C
