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All-round performers
The model numbers Fluke 73 and 77 are an important part of Fluke’s reputation. In many years of service they have become the preferred models for a large number of professionals. The Fluke 73 and 77 offer exactly the right fit for a wide range of measurements. They are truly all-round performers. The 73 III is perfectly suited for many electronic applications and has the "classic" 70 series design with removable holster. The 77 III has all the features and functions for a wide range of industrial applications packaged in an ergonomic case with integrated holster. Both models come with the unique lifetime warranty.
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- 0.3% basic accuracy
- 3200 count resolution
- Digital display with analog bargraph
- Manual and automatic ranging
- Automatic Touch Hold
- Resistance, continuity and diode measurements
- Ergonomic case with integrated protective holster (Fluke 77 III)
- "Classic" design with removable holster (Fluke 73 III)
- Sleep mode preserves battery life
- Lifetime warranty
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Safety conformance
73-III: All inputs are protected to EN61010-1 CAT II 600V
77-III: All inputs are protected to EN61010-1 CAT III 600V / CAT II 1000V
UL, CSA, TÜV listed
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| Specifications |
| Voltage DC |
| Maximum Voltage: |
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Fluke 73: 600V
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Fluke 77: 1000V |
| Basic Accuracy:
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0.3%
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| Maximum Resolution:
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0.1 mV
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| | Voltage AC |
| Maximum Voltage: |
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Fluke 73: 600V |
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Fluke 77: 1000V |
| Basic Accuracy:
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2% |
| Maximum Resolution:
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1 mV |
| | Current DC |
| Maximum Current: |
10 A |
| Maximum Resolution:
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0.01 mA |
| Basic Accuracy: |
1.5% |
| | Current AC |
| Maximum Current: |
10 A |
| Maximum Resolution: |
0.01 mA |
| Basic Accuracy: |
2.5% |
| | Resistance |
| Max Resistance:
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32 MΩ |
| Basic Accuracy:
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0.5% |
| Maximum Resolution:
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0.1 Ω |
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| Environmental Specifications |
| Operating Temperature | | | Storage Temperature | | | Humidity (Without Condensation) |
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0% - 90% (0°C - 35°C) |
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0% - 70% (35°C - 50°C) |
| | Operating Altitude | |
| Safety Specifications |
| Overvoltage category |
| Fluke 73 III: |
EN 61010-1 to 600 V CAT II |
| Fluke 77 III: |
EN 61010-1 to 600 V CAT III/1000V CAT II |
| | Agency Approvals | |
| Mechanical & General Specifications |
| Size |
| Fluke 73 III: |
166 x 75 x 28 mm |
| Fluke 77 III: |
190 x 89 37 mm |
| | Weight |
| Fluke 73 III: |
340 g |
| Fluke 77 III: |
365 g |
| | Warranty | | | Battery Life |
| Alkaline: |
~2000 hours typical |
| | Shock & Vibration |
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Per MIL-T-PRF 28800F Class III |
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| Model Name | Description | Price List | | Fluke 73 III |
Multimeter
Included accessories:
- Installed 9 V battery
- Separate holster (Fluke 73 III)
- TL75 Test Leads
- User Manual
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| | Fluke 77 III |
Multimeter
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| Clips | | AC220 | AC220 SureGrip™ Alligator Clip Set | | AC280 | AC280 SureGrip™ Hook Clips | | AC283 | AC283 SureGrip™ Pincer Clips | | AC285 | AC285 SureGrip™ Alligator Clip Set | | AC87 | AC87 Heavy Duty Bus Bar Clip Set | | AC89 | AC89 Heavy Duty Insulation Piercing Test Clip | | BP980 | BP980 Double Banana Plug Kit | | TLK225 | TLK225 SureGrip™ Master Accessory Kit |
| Test Probes | | TL910 | TL910 Electronic Test Probes | | TP1 | TP1 Slim Reach Test Probe (flat blade) | | TP2 | TP2 Slim Reach Test Probe (2 mm) | | TP220 | TP220 SureGrip™ Industrial Test Probes | | TP4 | TP4 Slim Reach Test Probe (4 mm) | | TP74 | TP74 Lantern Tip Test Probes | | TP80 | TP80 Electronic Test Probes | | TP912 | TP912 Replacement Tips for TL910 | | TP920 | TP920 Test Probe Adapter Kit |
| Cases and Holsters | | C100 | C100 Hard Meter and Accessory Case | | C1600 | C1600 Gear Box for Meter and Accessories
| | C25 | C25 Soft Meter Case | | C50 | C50 Soft Meter Case | | C510 | C510 Leather Meter Case | | C550 | C550 Tool Bag | | C75 | C75 Accessory Case | | C800 | C800 Hard Meter and Accessory Case |
| Current clamps | | i1010 | i1010 AC/DC Current Clamp | | i200 | i200 AC Current Clamp | | i200s | i200s AC Current Clamp | | i3000s | i3000s AC Current Clamp |
| High Voltage Probes | | 80K-40 | 80K-40 High Voltage Probe | | 80K-6 | 80K-6 High Voltage Probe |
| Lights | | L200 | L200 Probe Light | | L210 | L210 Probe Light + Probe Extender |
| Test Leads, Probes and Clips | | TL80A | TL80A Basic Electronic Test Lead Set |
| Temperature | | 80T-150UA | 80T-150U Universal Temperature Probe (for DMMs) |
| Test Leads | | H900 | H900 Test Lead Holder | | TL27 | TL27 Heavy Duty Test Lead Set | | TL220 | TL220 SureGrip™ Industrial Test Lead Kit | | TL221 | TL221 SureGrip™ Extension Lead Set | | TL222 | TL222 SureGrip™ Silicone Test Lead Set | | TL223 | TL223 SureGrip™ Electrical Test Lead Kit | | TL224 | TL224 SureGrip™ Silicone Test Lead Set | | TL238 | TL238 SureGrip™ Test Lead Set for High Energy Environments | | TL40 | TL40 Retractable Tip Test Lead Set | | TL75 | TL75 Hard Point Test Lead Set | | TL76 | TL76 All-in-one Test Lead Set | | TL81A | TL81A Deluxe Electronic Test Lead Set | | TL930 | TL930 Patch Cord Set (60 cm) | | TL932 | TL932 Patch Cord Set (90 cm) | | TL935 | TL935 Patch Cord Kit (60, 90, 120 cm) | | TL940 | TL940 Mini-Hook Test Lead Set | | TL950 | TL950 Mini-Pincer Test Lead Set | | TL960 | TL960 Micro-Hook Test Lead Set | | TL970 | TL970 Hook and Pincer Kit | | TLK220 | TLK-220 EUR SureGrip Industrial Test Lead Kit |
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