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

With this kit, you will be equipped for the most important measurements involving heating systems: the TÜV-tested testo 300 flue gas analyzer is supplied with O2 and CO H2-compensated sensor up to 8,000 ppm, basic flue gas probe, Bluetooth® printer, instrument bag and practical accessories.

Your advantages
• Fast and easy to operate: intuitive measurement menus and fast-response Smart-Touch display
• Including O2, CO H2-compensated sensor up to 8,000 ppm
• Large 5-inch HD display – see all the system's measuring values at a glance
• In the kit: testo 300 flue gas analyzer, including O2 and CO H2-compensated sensor up to 8,000 ppm, mains unit, basic flue gas probe, spare dirt filters, Bluetooth® printer, EasyHeat software, instrument bag

The P3100 models are available in single or dual piston format. Unit can be supplied in psi, bar, kgf/cm², and MPa. This robust instrument is highly accurate, quick and easy to use. Units feature a built-in priming pump for large volume applications, piston flotation indicators and a high quality screw press for fine pressure control.
Operating principle
Deadweight testers are the high performance pressure standards for pressure measurement. Utilizing the well proven piston-gauge system consisting of a vertically mounted, precision lapped piston and cylinder assembly, accurately calibrated weight masses (Force) are loaded on the piston (Area), which rises freely within its cylinder. These weights balance the upward force created by the pressure within the system. The pressure is measured when placed on a correctly spinning and floating piston. The total pressure measured is the summation of the weights plus the piston weight carrier assembly.
Instrument base
There are three basic variations in the hydraulic offering; single low pressure, single high pressure and dual piston models. Pressure is generated and controlled by means of a high quality screw press located on the front of the tester. A built-in hand pump is included as standard for all hydraulic models to prime the system and accommodate large volume requirements.
Piston/cylinder assemblies
The piston/cylinder assembly is the heart of each deadweight tester. They are manufactured from materials that provide stability, durability, and low thermal coefficients and distortion. Our experience and knowledge of piston/cylinder production and calibration ensure the precision and performance required for today’s demanding calibration requirements.
Weight masses
Standard weight masses are series 3 nonmagnetic austenitic stainless steel. Each mass is marked with the serial number of the instrument and the nominal pressure value relative to the high or low-pressure piston, when applicable. Optional fractional weights are stainless steel and/or solution heat treated aluminum.
Gravity correction
Gravity varies significantly with geographical location and this variation has a direct effect on the force of the weights and the accuracy of the deadweight tester. Each instrument can be calibrated to local gravity at no extra cost. If unspecified, instruments will be calibrated to Standard Gravity at 980.665 cm/s2.

Key features
• Pressure ranges to 60,000 psi (4000 bar)
• 0.015% of reading accuracy standard (0.008% optional)
• Single or dual piston format
• Built-in hand pumps standard
• Mounted spirit level with adjustable feet
• Units can be trimmed to local gravity FOC

Fluke 62 Max Infrared Thermometer delivers single-laser targeting accuracy



The Fluke 62 MAX Infrared thermometer delivers many of the features of the Fluke 62 MAX+, but features a single laser and 10:1 distance to spot ratio. You can use the Fluke 62 MAX to perform non-contact temperature measurements on transformers, motors, pumps, panels, breakers, compressors, duct, steam lines, valves, and vents. It is small in size and extremely easy to use. The single laser helps you pinpoint the target for more accurate readings and makes it easier to measure temperatures in hard to reach areas. With its IP54 rating for dust and water resistance you can rely the Fluke 62 MAX to deliver accurate, repeatable temperature measurements, rain or shine, in even the dirtiest and dustiest industrial sites. And it’s rugged enough to take a 3-meter drop so no worries even if you work from a ladder.



Other useful features:

- High and low alarms for rapid detection of temperatures outside the limits

- Powered by a single, standard AA battery.

- Comes with a three-year warranty -30-

- Withstands a 3 m (9.8 ft.) drop

- Offers small, lightweight form factor to clip comfortably to your tool belt or belt loop, or easily fit in your tool box

- Features a large, backlit display to make data easier to read, even in dark areas.

- Displays Min/Max/Avg/Dif: the minimum, maximum or average temperature, or the difference between two measurements