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| Model | Fluke 77-4 | Fluke 177 |
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| Product | INDUSTRIAL MULTIMETER, 1000V CAT III | Fluke 177 ESFP True-RMS AC/DC Digital Multimeter, 1000V with Analog Bargraph and Backlight |
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| Rating | (3) | (11) |
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| Price | | |
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| In Stock | | |
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Multimeters |
| Style | Hand-Held | Hand-Held |
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| Measures AC V | Yes | Yes |
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| Measures DC V | Yes | Yes |
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| Measures AC A | Yes | Yes |
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| Measures DC A | Yes | Yes |
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| True RMS | No | Yes |
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| Maximum Voltage AC | 1000 V | 1000 V |
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| Resolution AC Volts | 1 V (1000 mV) | 0.1 mV Resolution AC Volts Range / Resolution
600.0 mV / 0.1 mV
6.000V / 0.001V
60.00V / 0.01V
600.0V / 0.1V
1000V / 1V |
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| Maximum Voltage DC | 1000 V | 1000 V |
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| Resolution DC Volts | 1 V (1000 mV) | 0.1 mV Resolution DC Volts Range / Resolution
600.0 mV / 0.1 mV
6.000V / 0.001V
60.00V / 0.01V
600.0V / 0.1V
1000V / 1V |
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| Maximum Current AC | 10 A | 10 A |
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| Minimum Current AC | 60 mA | 0.01 mA |
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| Resolution AC Current | 0.01 A (10 mA) | 0.01 mA Resolution AC Current AC Amps - (True-rms)
Range / Resolution
60.00 mA / 0.01 mA
400.0 mA / 0.1 mA
(600 mA for 18 hrs) / 0.001A
6.000A / 0.001A
(45 Hz to 1 kHz) :
10.00A / 0.01A
(20A for 30s) |
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| Maximum Current DC | 10 A | 10 A |
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| Minimum Current DC | 60.00 mA | 0.01 mA |
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| Resolution DC Current | 0.01 mA | 0.01 mA Resolution DC Current AC Amps - (True-rms)
Range / Resolution
60.00 mA / 0.01 mA
400.0 mA / 0.1 mA
(600 mA for 18 hrs) / 0.001A
6.000A / 0.001A
(45 Hz to 1 kHz) :
10.00A / 0.01A
(20A for 30s) |
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| Basic Accuracy V DC | 0.3 % + 1 | 0.09 Basic Accuracy V DC ± (0.09%+2 counts) |
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| # Digit Display | 3.75 | 3.75 |
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| Counts | 6000 . Counts
Digital: 6000 counts, updates 4/sec
Frequency: 10,000 counts
Capacitance: 1,000 counts | 6000 . Counts Updates 4 x second |
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| Backlight | Yes | Yes |
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| Manual/Autoranging | Both | Both |
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| Decibels | No | No |
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| Resistance | Yes Resistance Range 600.0 Ω - 50 MΩ
Best accuracy ±(0.5 % + 1)
Best resolution 0.1 Ω | Yes Resistance Accuracy ± (0.9%+1 counts )
Max. resolution 0.1 Ω
Maximum 50 MΩ
50 MΩ Accuracy: (1.5% + 3 counts )
Range / Resolution
600.0Ω 0.1Ω
6.000 kΩ 0.001 kΩ
60.00 kΩ 0.01 kΩ
600.0 kΩ 0.1 kΩ
6.000 MΩ 0.001 MΩ
50.00 MΩ 0.01 MΩ |
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| Frequency | Yes Frequency Range 99.99Hz - 99.99kHz
Best accuracy ±(0.1 % + 1)
Best resolution 0.01Hz | Yes Frequency Accuracy* ± (0.1%+1)
Max. resolution 0.01 Hz
Maximum 100 kHz |
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| Capacitance | Yes Capacitance Range 1nF - 9,999 μF
Best accuracy ±(1.2 % + 2)
Best resolution 1 nF | Yes Capacitance Accuracy* ± (1.2%+2 counts )
9999 µF - 10% Accuracy typical
9999 Count Display
Max. resolution 1 nF
Maximum 10,000 µF
Range / Resolution
1000 nF / 1 nF
10.00 µF / 0.01 µF
100.0 µF / 0.1 µF
9999 µF / 3 1 µF |
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| Temperature | No | No |
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| Diode Testing | Yes Diode Testing Range 2.400 V
Accuracy 1 % + 2
Resolution 0.001 V | Yes Diode Testing Range: 2.400V
Resolution 0.001 V
Accuracy (1 % + 2 counts )
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| CAT Rating | IV CAT Rating ANSI/ISA S82.02.01, CSA C22.2-1010.1, IEC
61010 to 1000 V Measurement Category III,
600 V Measurement Category IV | IV CAT Rating Overvoltage category
EN 61010-1 to 1000 V CAT III
EN 61010-1 to 600 V CAT IV |
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| CAT Voltage | 1,000 V, 600 V | 1,000 V, 600 V CAT Voltage EN 61010-1 to 1000 V CAT III
EN 61010-1 to 600 V CAT IV |
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| Intrinsically Safe | No | No |
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| Peak Hold | No | No Peak Hold HOLD: freezes the display at the push of a button
Auto HOLD: Display holds present reading until it detects new stable input,
then the meter beeps and displays new reading |
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| Overload Protector | Yes | Yes |
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| Kelvin 4-Wire Measurement Capability | No | No |
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| Wireless Display | No | No |
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| Data Hold | Yes | Yes |
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| Low-Pass Filter | No | No |
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Test Equipment General Attributes |
| Unique Features | •Large display
•Backlight for work in dim areas
•Min / Max to record signal fluctuations
•Ergonomic overmolded housing with integrated probe holders
•Free your hands with the optional TPAK magnetic hanger
•Auto and Manual ranging
•Meets Measurement Category 1000 V CAT III and Category IV 600 V safety standards | •Manual and automatic ranging
•Display Hold and Auto Hold
•Frequency and capacitance measurements
•Resistance, continuity and diode measurements
•Min-max-average recording
•Closed case calibration through front panel
•Ergonomic case with integrated protective holster
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| Warranty | | 1 LIMITED LIFETIME (1 YEARS) |
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| Warranty Details | N/A | Limited Lifetime Warranty |
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| Safety Approval | CSA, UL Safety Approval CSA, TÜV (EN61010), UL, Π, (N10140), VDE | CSA, UL |
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| Interfaces I/O | Analog Output, Analog Input | Analog Output, Analog Input |
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| Product Weight | 0.93 LBS | 420 GRAMS (0.926 LBS) |
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| Product Height | 1.69 IN | 1.69 IN |
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| Product Length | 7.28 IN | 7.28 IN |
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| Product Width | 3.54 IN | 3.54 IN |
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| Data Logging | No | No |
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| ECCN Number | 3A992 | N/A |
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| Calibration Included | None | Factory Calibration Calibration Included Factory Certification without certification |
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| Battery Type | 9v Battery Type 9 V Alkaline, NEDA 1604 / 1604A
400 hrs typical | 9v |
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| Power Supply Voltage | Battery Powered | Battery Powered |
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| Country of Origin | United States | United States |
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| UPC | 095969365239 | N/A |
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