Fluke 187/189 True-rms Digital Multimeter

1 Page 1 of 3, Document #2153. 187/189 Extended Specifications 2000 Fluke Corporation Rev. A-8/00. Fluke 187/189 . True-rms Digital Multimeter Extended Specifications Nominal Specifications Detailed Specifications Function Ranges/Description Accuracy is specified for a period of one year after calibration, at 18 C to 28 C (64 F to 82 F) with relative humidity to 90%. Accuracy specifications are given as ([% of reading] + [number of least DC Voltage 0 to 1000V significant digits]). DC Current 0 to 10A (20A for 30 seconds). Accuracy AC Voltage, True-rms mV to 1000V - 100 kHz bandwidth 45 Hz- 20 Hz- 1 kHz- 10 kHz- 20 kHz- AC Current, True-rms 25 A to 10A (20A for 30 seconds) Function Range Resolution 1 kHz 45 Hz 10 kHz 20 kHz 100 kHz Resistance 0 to 500 Mohms AC mV 1,2 50,000mV + 40 2% + 80 5% + 40 + 40 15% + 40.

2 Conductance 0 to 500 Nanosiemens mV mV + 40 2% + 80 5% + 40 + 40 8% + 40. Capacitance nF to 50 mF mV mV + 40 2% + 80 + 40 + 40 8% + 40. Diode Test AC V 1,2 + 40 2% + 80 + 40 + 40 8% + 40. Temperature -200 C to 1350 C (-328 F to 2462 F) + 40 2% + 80 + 40 + 40 8% + 40. Frequency Hz to 1000 kHz + 40 2% + 80 + 40 Not specified Not specified Accuracy (Basic DC V) + 40 2% + 80 + 40 Not specified Not specified (Basic AC V) dBV -56 to -6 dB dB dB dB dB dB. -6 to +34 dB dB dB dB dB dB. Features +34 to +60 dB dB dB dB Not specified Not specified Feature Description Accuracy Dual Displays 50,000 count primary display 5,000 count secondary display 45 Hz- 20 Hz- 1 kHz- 20 kHz- Function Range Resolution 1 kHz 45 Hz 20 kHz 100 kHz Backlight with 2 Bright white backlight for clear readings brightness selections in poorly lighted areas AC A A A + 20 1% + 20 + 20 6% + 40.

3 Fast Autorange Meter automatically selects best range - A A + 5 1% + 5 + 10 2% + 40. instantly AC mA mA mA + 20 1% + 20 + 20 9% + 40. AC+DC true RMS, ac Choices for AC only, AC and DC dual mA mA + 5 1% + 5 + 10 4% + 40. rms specified to 100 kHz display, or AC+DC readings AC A + 20 + 20 6% + 40 Not specified dBm, dBV User selectable impedance references for dBm + 5 + 5 5% + 10 Not specified AutoHOLD Holds readings on display Continuity/Open Test Beeper sounds for Ohms readings below Accuracy Accuracy Dual Display AC or AC+DC5. threshold or for momentary open circuit indication 20 Hz- 45 Hz- 1kHz- Function Range Resolution DC 45 Hz 1 kHz 20 kHz Fast Bar Graph 51 Segments for peaking and nulling DC mV mV +20 2% + 80 + 40.

4 Duty Cycle/Pulse Width Measure time a signal is on or off in % 6% + 40. or milliseconds mV mV + 2 2% + 80 + 40. MIN MAX/Fast MIN MAX Record Maximum, Minimum, and Average mV mV + 5 2% + 80 + 40. with elapsed and values. Real Time for MAX or MIN, elapsed DC V + 103 2% + 80 + 40 2% + 40. Real Time Stamp time for AVG. Fast MIN MAX captures peaks to 250 sec. + 33 2% + 80 + 40. Closed Case Calibration No internal adjustments needed + 23 2% + 80 + 40 Not specified Battery/Fuse Battery or fuse replacement without + 23 2% + 80 + 40 Not specified Access Door voiding calibration DC A A A + 20 1% + 20 1% + 20 2% + 40. Hi-Impact Overmold Case Integrated Protective Holster provides superior impact protection for your meter A A + 2 1% + 10 + 10 2% + 40.

5 DC mA mA mA + 10 1% + 20 + 20 2% + 40. 1. For the 5,000 count mode, divide the number of least significant digits (counts) by 10. mA mA + 2 1% + 10 1% + 10 3% + 40. 2. A residual reading of 8 to 180 digits with leads shorted, will not affect stated DC A + 10 2% + 20 2% + 20 6% + 40. accuracy above 5% of range. 3. 20 counts in dual display DC or AC + DC + 2 + 10 + 10 5% + 40. 4. 10A continuous up to 35 C, less than 10 minutes 35 to 55 . 20A overload for 30 seconds maximum 5. See AC conversion notes for AC mV and V. Above specifications are subject to change without notice. Page 2 of 3, Document #2153. 187/189 Extended Specifications 2000 Fluke Corporation Rev. A-8/00. Detailed Specifications (continued) Memory and PC Communication Accuracy is specified for a period of one year after calibration, at 18 C to Functions ( Fluke 189 Only).

6 28 C (64 F to 82 F) with relative humidity to 90%. The Fluke 189 adds the following capabilities: Accuracy specifications are given as ([% of reading] + [number of least significant digits]) Interval LOGGING At least 288 intervals (specified by user in Setup). may be recorded to internal memory. These Function Range Resolution Accuracy values may be viewed using the VIEW MEM. Resistance1 + 106 function on the meter. Up to 700 unstable event k k + 2 values (similar to AutoHold) are automatically added to LOGGING memory for viewing only k k + 2 through the optional FlukeView Forms PC. k k + 2 software. Additional intervals will be logged if the signal is stable. M M + 42. M M 1% + 42 Reading SAVE Up to 100 readings may be saved by the user in a memory separate from LOGGING memory.

7 These M M 3% + 211 readings may be viewed using VIEW MEM. M M 10% + 211. Conductance nS nS 1% + 10. Capacitance3 nF nF 2% + 5. Frequency Counter Sensitivity nF nF Approximate VAC Sensitivity (RMS Sine Wave)1. nF nF. 15 Hz to 500 Hz2 VAC Approximate VCD VDC. F F Input Range 100 kHz2 Bandwidth3 Trigger Levels1 Bandwidth3. F F 1% + 5 50 mV 5 mV 10 mV 1 MHz -5 mV & 5 mV 1 MHz F F 500 mV 20 mV 20 mV 1 MHz 5 mV & 65 mV 1 MHz F 1 F 3000 mV 500 mV 2000 mV 800 kHz 140 mV & 200 mV 90 kHz mF mF 5V 950 kHz V & V 14 kHz mF mF5 3% + 10 50V 5V 1 MHz V & V > 400 kHz Diode Test1 2% + 20 500V 20V 20V 1 MHz 5 V & 65 V > 400 kHz Frequency Hz Hz4 1000V 100V 100V > 400 kHz 5 V & 65 V > 400 kHz kHz kHz ( + 1) 1. Maximum imput = 10 x Range (1000 V max).

8 Noise at low frequencies and amplitudes may kHz kHz affect accuracy. 2. kHz kHz Usable at reduced sensitivity to Hz and 1000 kHz. 3. Typical frequency bandwidth with full scale (or maximum 2 x 107 V-Hz product). Duty Cycle to (Voltage Range/ RMS sine wave. Input Voltage) x 300. counts)9,10. Pulse Width5 ms ms Burden Voltage (A, mA, A). (3% x(Voltage range/. input voltage)+ 1 count)9,10 Function Range Burden Voltage (typical). ms ms mA- A A 102 V / A. Temperature -200 to C (1% of reading + 1 C)7,12 5,000 A 102 V / A. +1350 C. mA mV / mA. -328 to F (1% of reading +. +2462 F F)7,12 mA mV / mA. Min-Max-Avg Response: 100 ms to 80% Specifed accuracy 12 A A V / A. counts for changes >200 ms in duration. A V / A.

9 ( 40 digits in AC for changes >350 ms and inputs >25% of range). Fast Min-Max 250 s8 Specified accuracy 100. counts for changes >250 s in duration8. 1. For the 5,000 count mode, divide the number of least significant digits (counts) by 10. 2. For relative humidity greater than 70%, resistance accuracy is over 1 M and over 10 M . 3. For film capacitor or better, using Relative mode (REL ) to zero residual on nF range. 4. Reading will be for signals below Hz. 5. Least significant digit not active above 10 mF. 6. Using relative mode (REL ) to zero residual reading. 7. For ambient temperature changes of 5 C, rated accuracy applies after 1 hour. 8. For repetitive peaks, ms for single events. 9. Frequency greater than 5 Hz, except for VDC, 500 mV dc and 3000 mV dc functions; Hz to + 0.

10 10. Range/input ratios also apply to current functions. 11. To ensure stated accuracy, switch to conductance mode and verify that the open circuit reading is less than nS. 12. Accuracy specification is relative to the user - adjustable temperature offset, and assumes ambient temperature stable to 1 C. Above specifications are subject to change without notice. Page 3 of 3, Document #2153. 187/189 Extended Specifications 2000 Fluke Corporation Rev. A-8/00. Input Impedance Function Input Impedance (Nominal). Volts, mV 10 M , < 100 pF. Common Mode Rejection Ratio Normal Mode Rejection DC Volts, mV >100 dB at dc, 50 Hz or 60 Hz >90 dB at 50 Hz or 60 Hz AC Volts, mV > 90 dB dc to 60 Hz Full-Scale Voltage Open Circuit Test Voltage To 5 M 30 to 500 M + nS.