Hioki insulation testers or megohmmeters feature all-in-one designs including built-in rugged cases and test lead storage compartments. The IR4058 is a 5-range, 50V to 1000V digital insulation resistance tester with bargraph, and delivers efficient functions and features to help shorten work time associated with field insulation testing.
Key Features
• Measured values held on the display are sent immediately to a smartphone or tablet via Bluetooth® technology
• 5-range testing voltage of 50 V/100 MΩ to 1000 V/4000 MΩ • Digital bar graph
• Stable & high-speed digital readings, 0.3 second response time for PASS/ FAIL decisions
• Drop proof onto concrete from 1m (3.28 ft.)
• Bright LED, luminous LCD, test lead with bright LED lamp to illuminate near hand (Option L9788-11 or L9788-10)
• Continuity check via 200 mA testing
• Built in AC/DC voltage meter, useful for testing solar power generation systems and electric vehicles
Instantly create reports by a free app (GENNECT Cross)
GENNECT Cross, a free app designed specifically for use with Hioki measuring instruments, lets you check and manage measurement results and create reports. The software provides a range of functionality that helps manage data in the field, including photographing measurement sites, placing measurement results on photographs, and saving hand written memos.
Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)
Rated output voltage | 50 V DC | 125 V DC | 250 V DC | 500 V DC | 1000 V DC |
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Effective maximum indicated value | 100 MΩ | 250 MΩ | 500 MΩ | 2000 MΩ | 4000 MΩ |
Accuracy 1st effective measuring range MΩ | ±2 % rdg. ±2 dgt. 0.200 – 10.00 | ±2 % rdg. ±2 dgt. 0.200 – 25.0 | ±2 % rdg. ±2 dgt. 0.200 – 50.0 | ±2 % rdg. ±2 dgt. 0.200 – 500 | ±2 % rdg. ±2 dgt. 0.200 – 1000 |
Lower limit resistance | 0.05 MΩ | 0.125 MΩ | 0.25 MΩ | 0.5 MΩ | 1 MΩ |
Overload protection | 600 V AC (10s) | 660 V AC (10s) | |||
DC voltage range | 4.2 V (0.001 V resolution) to 600 V (1 V resolution), 4 ranges, Accuracy: ±1.3% rdg. ±4 dgt., Input resistance: 100 kΩ or higher | ||||
AC voltage range | 420 V (0.1 V resolution) / 600 V (1 V resolution), 2 ranges, 50/60 Hz, Accuracy: ±2.3% rdg. ±8 dgt., Input resistance: 100 kΩ or higher, Average rectifier | ||||
Low resistance range | For checking the continuity of ground wiring, 10 Ω (0.01 Ω resolution) to 1000 Ω (1 Ω resolution), 3 ranges, Basic accuracy: ±3 % rdg. ±2 dgt., testing current 200 mA or more (at 6 Ω or less) | ||||
Display | Semi-transmissive FSTN LCD with back lighting, bar-graph indicator | ||||
Response time | Approx. 0.3 second for PASS/FAIL decision (based on in-house testing) | ||||
Other functions | Indicate MΩ measurement value after a lapse of one minute, Live circuit indicator, Automatic electric discharge, Automatic DC/AC detection, Comparator, Drop proof, Auto power save | ||||
Interface (IR4058 only) | Bluetooth® 4.0LE (Bluetooth® SMART), Supported devices: iOS 8 or later, Android™ 4.3 or later smartphone/tablet GENNECT Cross (free downloadable app) : display measured values, Simple logging function, Hold save function | ||||
Power supply | LR6 (AA) alkaline batteries × 4, Continuous use: 20 hours (based on in-house testing), 10 hours (Bluetooth® ON) | ||||
Dimensions and mass | 159 mm (6.26 in)W × 177 mm (6.97 in)H× 53 mm (2.09 in)D, 640 g (22.6 oz) (including batteries, excluding test leads) | ||||
Accessories | Test lead L9787 ×1, Neck strap ×1, Instruction manual ×1, LR6 (AA) alkaline batteries ×4 |
Countries and regions where wireless operation is currently supported (IR4058-20)
Countries and regions where wireless operation is currently supported | Australia, Austria, Belgium, Bulgaria, Canada, Chile, Colombia, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Georgia, Germany, Greece, Hong Kong, Hungary, Iceland, Ireland, Israel, Italy, Japan, Kenya, Korea, Latvia, Liechtenstein, Lithuania, Luxembourg, Macao, Malta, Myanmar, Netherlands, New Zealand, Norway, Peru, Poland, Portugal, Romania, Serbia, Singapore, Slovakia, Slovenia, Spain, Sweden, Switzerland, Thailand, Turkey, United Kingdom, United States, Viet Nam |
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Note | Use of devices that emit radio radiation requires approval in the country of use. Thus, use of the instrument in a country or region where they have not been approved may be subject to penalty as a violation of law. |