Product Overview: Fluke 18B+ Digital Multimeter
Fluke always provides you with superior quality.
Check and test most electronics problems with the Fluke 18B+ Digital Multimeter. The meter is easy to use and offers significant improvements over the original Fluke 18B. Ideal for anyone involved in electronics repair and manufacturing setups. Whether you've always wanted a Fluke digital multimeter or have been looking for a reason to upgrade, the Fluke 18B+ has you covered.
Product Specification: Fluke 18B+ Digital Multimeter
Accuracy Specifications
Calibrated to maintain accuracy for 1 year at operating temperatures from 18 °C to 28 °C and relative humidity from 0 % to 75 %. Accuracy specifications are in the form of ±([reading %] + [lowest significant digit]).
| functionality | range (of scales or measuring equipment) | resolution (of a photo) | accurate | |
| alternating current (40 Hz to 500 Hz)1 |
4.000 V 40.00 V 400.0 V 1000 V |
0.001 V 0.01 V 0.1 V 1 V |
1.0 % + 3 | |
| dc voltage | 4.000 V 40.00 V 400.0 V 1000 V |
0.001 V 0.01 V 0.1 V 1 V |
0.5 % + 3 | |
| AC Voltage (mV) | 400.0 mV | 0.1 mV | 3.0 % + 3 | |
| DC voltage (mV) | 400.0 mV | 0.1 mV | 1.0 % + 10 | |
| Diode Testing2 | 2.000 V | 0.001 V | 10% | |
| resistive (ohms) |
400.0 Ω 4.000 kΩ 40.00 kΩ 400.0 kΩ 4.000 MΩ 40.00 MΩ |
0.1 Ω 0.001 kΩ 0.01 kΩ 0.1 kΩ 0.001 MΩ 0.01 MΩ |
0.5 % + 3 0.5 % + 2 0.5 % + 2 0.5 % + 2 0.5 % + 2 1.5% + 3 |
|
| capacitors3 | 40.00 nF 400.0 nF 4.000 μF 40.00 μF 400.0 μF 1000 μF |
0.01 nF 0.1 nF 0.001 μF 0.01 μF 0.1 μF 1 μF |
2 % + 5 2 % + 5 5 % + 5 5 % + 5 5 % + 5 5 % + 5 |
|
| frequency1 Hz (10 Hz - 100 kHz) |
50.00 Hz 500.0 Hz 5.000 kHz 50.00 kHz 100.0 kHz |
0.01 Hz 0.1 Hz 0.001 kHz 0.01 kHz 0.1 kHz |
0.1 % + 3 | |
| duty cycle1 | 1 % to 99 % | 0.1 % | 1 % Typical Situationl 4 | |
| AC Current μA (40 Hz to 400 Hz) |
400.0 μA 4000 μA |
0.1 μA 1 μA |
1.5 % + 3 | |
| AC current mA (40 Hz to 400 Hz) |
40.00 mA 400.0 mA |
0.01 mA 0.1 mA |
1.5 % + 3 | |
| AC current A (40 Hz to 400 Hz) |
4.000 A 10.00 A |
0.001 A 0.01 A |
1.5 % + 3 | |
| DC current μA | 400.0 μA 4000 μA |
0.1 μA 1 μA |
1.5 % + 3 | |
| DC current mA | 40.00 mA 400.0 mA |
0.01 mA 0.1 mA |
1.5 % + 3 | |
| DC current A | 4.000 A 10.00 A |
0.001 A 0.01 A |
1.5 % + 3 | |
| 1All current, frequency, and duty cycle ranges are from 1 % to 100 % of the range. input values below 1 % of the range are not specified. 2Typically, the open-circuit test voltage is 2.0 V and the short-circuit current <0.6 mA. 3Specifications do not include errors due to test lead capacitance and capacitor plates (up to 1.5 nF at a range of 40 nF). 4This usually means a frequency of 50 Hz or 60 Hz and a duty cycle between 10 % and 90 %. |
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| functionality | Luminous range | Measurement range | resolution (of a photo) | accurate |
| LED VF Test 1 (LED test socket) | 1.00 to 6.00 V | NA | NA | NA |
| LED VF Test 2 (test leads) | 1.00 to 6.00 V | 1.00 to 6.00 V | 0.01 V | 10 % 3 |
| Throughput Threshold | inapplicable | inapplicable | inapplicable | 70Ω |
| 1 Open-circuit test voltage ±12 V, short-circuit current >±5 mA (typical) 2 Open-circuit test voltage ±12 V, short-circuit current >±3 mA (typical) 3 VF measurement with drive current below 2.2 ± 0.4 mA. |
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| functionality | overload protection | Input Impedance (nominal) | Common mode rejection ratio | Conventional mode rejection ratio |
| alternating current | 1000 V 1 | >10 MΩ <100 pF | Greater than 60 dB at 50 Hz or 60 Hz at DC current | - |
| AC Voltage (mV) | 400 mV | >1MΩ, <100 pF | Greater than 80 dB at 50 Hz or 60 Hz | - |
| dc voltage | 1000 V 1 | >10 MΩ <100 pF | Greater than 100 dB at 50 Hz or 60 Hz at DC current | Greater than 60 dB at 50 Hz or 60 Hz |
| DC voltage (mV) | 400 mV | >1MΩ, <100 pF | Greater than 80 dB at 50 Hz or 60 Hz | - |
| 1 106 V Hz max. | ||||
| General technical indicators | |
| Maximum voltage between any terminal and ground | 1000 V |
| Display (LCD) | 4000 counts, 3 updates per second |
| Battery Type | 2 AA, NEDA 15A, IEC LR6 |
| Battery usage time life | 500 hours minimum (50 hours in LED test mode without load. Battery life with load depends on the type of LED being tested). |
| temp | |
| operating temperature | 0 °C to 40 °C |
| Storage temperature | -30 °C to 60 °C |
| relative humidity | |
| Operating humidity | Non-condensing (<10°C) Less than or equal to 90% RH at 10 °C to 30 °C; less than or equal to 75% at 30 °C to 40 °C |
| 40 MΩ range Less than or equal to 80% RH at 10 °C to 30 °C; less than or equal to 70% at 30 °C to 40 °C | |
| height above sea level | |
| operating temperature | 2000 m |
| Storage temperature | 12,000 m |
| temperature coefficient | 0.1 X (specified accuracy) /°C (28 °C) |
| Fuse protection for current input | 440 mA, 1000 V Fast Fuse, select Fluke parts only. 11A, 1000 V Fast Fuse, select Fluke parts only. |
| Volume (H x W x L) | 183 x 91 x 49.5 mm |
| weights | 455 g |
| IP rating | IP 40 |
| safety | IEC 61010-1, IEC 61010-2-030 600 V CAT III, 1000 V CAT II, Pollution class 2 |
| electromagnetic environment | IEC 61326-1: Portability |
| electromagnetic compatibility | Only available in Korea |
| Class A equipment (industrial broadcasting and communications equipment)1 1 This product meets the requirements for industry (Class A) EMP equipment and the salesman or user should be aware of this. This device is intended for commercial environments and is not suitable for home use. |
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Model: Fluke 18B+ Digital Multimeter
Fluke 18B+ Digital Multimeter
- TL75 Test Leads with Two Caps
- 2 x 5 batteries
- user manual
Comprehensive test and measurement service provider-Shenzhen Weike Electronic Technology Co.







