The Fluke 705 Loop Calibrator is a cost-effective, integrated solution for calibration, repair and maintenance of current loops.

• mA sourcing, simulation and measurement
• 0.02% accuracy and 0.001mA resolution
• Simultaneous mA and % of span display
• Selectable step or ramp outputs
• 24V loop supply with mA measure
• 0V DC to 28V DC measurement to check loop voltage
• Removable battery door for quick battery replacement
• Compact case with protective holster
• Three-year warranty
• Fluke type 705

The Martindale TEK300 process control calibrator features sink, source and monitor modes for 0 - 20mA and is ideal for most process control applications, as well as general purpose signal injection applications.

The handheld unit is fully portable and has a large 3½ digit LCD display, with overload protection for extra safety.

• Display: 3½ digit LCD
• Output Connectors: 4mm terminal posts (19.05mm apart)
• Operating Temperature: 0°C to 50°C
• Supply: 2x 9V batteries MN1604 or equivalent (included)
• Housing: Light grey ABS handheld, with stand
• Dimensions: 180 x 100 x 44mm
• Weight: 380g approx
• Supplied with TEK300, batteries and instruction manual

The Voltcraft CC-421 current calibrator is a high precision calibration tool for your measurement device. The current source can supply up to 24mA max. at 400ohm, DC current measurement up to 24mADC and loop current measurements. The CC-421 connects four functions in one device: Precise DC source, Measurement of process currents, Supplying and measuring 2-conductor loop current systems and Precise DC-source. It is simple to use, with only 3 slide switches and one multiturn potentiometer.

• 4-in-1 device
• 2.5 measurements/readings per second
• Basic accuracy: 0.2%
• Supplied with measurement cable and user manual (Batteries not included)