The Fluke 1535 and 1537 2,500 V Insulation Resistance Testers are engineered to simplify frontline troubleshooting whether you’re on the factory floor or working in the field at a solar installation. With user selectable test voltages from 250 V to 2,500 V and resistance measurements up to 500 GΩ these testers allow you to cover more workload with a single tool. Equipped with an intuitive user interface, a short circuit current of up to 5 mA and a CAT IV 600 V rating these portable high-voltage insulation testers can deliver rapid and stable resistance measurements no matter where you take them. The 1537 Insulation Resistance Tester also allows you to store measurements for later review or PC transfer, using the provided software.
• Selectable Voltage Tests: Tailor your tests with user-selectable voltages of 250 V, 500 V, 1000 V, and 2500 V to cover both industrial and solar applications.
• Extended Insulation Resistance Measurement: Reach up to 500 GΩ in insulation resistance measurement for a thorough analysis.
• Intelligent Calculations: Automatically calculate Polarization Index (PI) and Dielectric Absorption Ratio (DAR), minimizing the influence of environmental factors.
• High Measurement Capacity: Execute up to 1,300 measurements at 2,500 V or 6,500 measurements at 250 V on a single charge, enhancing productivity.
• Enhanced Safety Features: Benefit from a CAT IV 600V rating and a built-in voltage alarm function for heightened safety during operations.
The Fluke 1537 has these additional features:
• Extended Measurements: The Fluke 1537 enhances your testing capabilities with AC/DC voltage and resistance measurements.
• Stable Resistance Measurements: Achieve faster, more stable insulation resistance measurements with a short circuit current up to 5mA.
• Fine-tunable Test Voltage: Adjust the test voltage from 250 V to 2500 V in 100 V increments to meet specific testing requirements.
• Dielectric Discharge Rate Calculation: Automatically calculate the dielectric discharge rate (DD) to aid in identifying elusive insulation issues.
• Ramp Test Mode: Linearly increase the applied test voltage 100 V/s to help identify potentially hard to identify fault conditions.
• Visual and Audio Continuity Indicator: Verify continuity visually on the screen display or with the audible indicator so you can focus on your testing procedure without looking at the display.
• Customizable Testing Parameters: Set user-defined labels, adjust test duration, and store measurement results for a tailored testing experience.
• Effortless Data Management: Download and manage data effortlessly with the provided PC software.
• Extended Warranty: Enjoy peace of mind with an extended 3-year warranty.

Key Features
• User-selectable voltages of 250 V-2500 V
• Up to 500 GΩ insulation resistance measurement
• Short circuit current up to 5mA for fast, stable measurements
• Automatically calculate PI and DAR
• Perform 1,300+ insulation tests on a single charge

This versatile instrument provides calibrations from 1-30 inHg vacuum (0.03-1 bar) and 3-500 psi (0.2-35 bar) in one extremely accurate yet easy to use primary standard. A selector valve converts the unit from pressure to vacuum mode without the need to exchange pistons. Units are manufactured to the highest standards with certified accuracies traceable to International Standards Laboratories such as the National Institute of Standards and Technology (NIST). These piston/cylinder type pneumatic standards provide excellent stability, repeatability and accuracy. An optional built-in hand pump can be added for both pressure and vacuum generation.

Key features
• 0.015% of reading accuracy standard (0.008% optional)
• 1-30 inHg vacuum (0.03-1 bar vacuum)
• 3-500 psi (0.2-35 bar) pressure
• inH2O and mbar ranges available
• Series 3 non-magnetic stainless steel weights
• Units can be trimmed to local gravity FOC

Key features
Ultra-cool dry-block calibrator with best-in-class stability

The Fluke 9190A Ultra-Cool Field Metrology Well is the most accurate and stable, cold temperature dry-block on the market. It’s ideal for applications that demand strict quality control and regulatory process compliance. These applications include on-location validation and calibration of RTDs, thermocouples, thermometers, and sensors used with process control equipment such as medical freezers, laboratory refrigerators, cold rooms, blood banks, sterilizers (autoclaves), and freeze dryers.

Wide temperature range
–95 °C to 140 °C

Excellent accuracy
Accuracy using built-in referencethermometer readout: ±0.05 °C full range
Display accuracy: ±0.2 °C full range
Best-in-class stability
±0.015 °C full range

Fast cooling time
23 °C to –90 °C: 80 minutes
23 °C to –95 °C: 90 minutes
140 °C to 23 °C: 60 minutes

Portability
Weighs only 16 kg (35 lbs)
Built-in front and back handlesfor easy two-handed carry
Best measurement practices
Conforms with EURAMET cg-13 guidance on measurement practices for temperature calibrators

Fluke ii915 Acoustic Imager: Detect, Locate, and Assess Anomalies

The Fluke ii915 Acoustic Imager is a powerful tool designed to identify and evaluate issues in various systems. With three distinct modes—LeakQ™, PDQ™, and MecQ™—this innovative device empowers maintenance professionals to take proactive measures and prevent costly problems. Let’s explore its capabilities:

Leak Detection with More Sensitivity
LeakQ™ Mode: Detect Hidden Costs

Leaks in compressed air, gas, steam, and vacuum systems can lead to significant financial losses. The Fluke ii915 simplifies leak detection by allowing technicians to visualize sound. As they scan hoses, fittings, and connections, the built-in acoustic array captures decibel levels per frequency. The resulting SoundMap™ overlays on a visual image, making it easy to pinpoint leaks—even during peak operation hours. Say goodbye to time-consuming inspections and hello to efficient leak detection. Fluke ii915 has the high frequency range and best sensitivity to do acoustic leak detection more efficiently.

Early Mechanical Issue Identification
MecQ™ Mode: Efficient Inspection for Conveyor Systems

Conveyor systems are notorious for their complexity and potential to disrupt production. The Fluke ii915 acoustic camera revolutionizes inspection by enabling contactless scanning of large areas. Advanced noise filtering ensures clear images, even in high-noise environments. Detecting potential mechanical issues early allows targeted maintenance, preventing unplanned downtime. For seamless operation and proactive maintenance of large conveyance systems, the Fluke ii915 Acoustic Imager with MecQ™ is the ultimate choice.

Visualizing the Invisible Threat
PDQ™ Mode: Locating Partial Discharge

Partial discharge poses serious risks, from arc flash fires to blackouts. The Fluke ii915 translates partial discharge sounds into visuals, precisely pinpointing their location. With an extended frequency range of 2-100 kHz, this tool can detect partial discharge even earlier and aids maintenance planning to prevent catastrophic events. High-voltage electricians, electrical test engineers, and grid maintenance teams can now see what was once invisible.

Key features
• Enhanced Performance: Improved detection performance for gas leaks, electrical discharges, and mechanical issues.
• LeakQ™ Mode: Estimated leak size and cost.
• PDQ Mode™: Assesses discharge severity.
• MecQ™ Mode: Proactively address potential problems in rotating mechanical components.
• Reporting Features: Integrated visual and textual tagging and annotation functionalities for streamlined reporting.
• Wireless Upload: Easily transfer data to Fluke Connect.