Sensors, Actuators and Analytical
Test & Measurement, Instrumentation
Monday, September 14, 2009
ROV Metal Oxide Varistors Raychem Tyco
"ROV metal oxide varistors help protect power systems from damage caused by transient overvoltage faults such as lightning, power contact, and power induction. Suitable for a broad range of applications, ROV devices help protect sensitive electronic equipment from potential power surge damage by clamping high-energy, short-duration impluses."
"An ROV device is a varistor fabricated using a Zinc Oxide (ZnO) powder, sintered with other metal oxide ceramics. The resulting structure is a polycrystalline ceramic that consists of distributed ZnO grains, separated by other metal oxide ceramics."
"A varistor is a variable resistor-a voltage dependent, non-linear device whose resistance decreases as the voltage applied across the device increases. "
Raychem Circuit Protection Products
Thursday, September 10, 2009
"The new 725Ex Intrinsically Safe Multi-function Process Calibrator is powerful yet easy-to-use. Combined with one of the (8) new Fluke-700PEx pressure modules, the 725Ex is able to calibrate almost any process instrument likely to need service in an area where explosive gasses may be present."
- Measure Volts dc, mA, RTDs, thermocouples, frequency and ohms
- Source or simulate Volts dc, mA, RTDs, thermocouples, frequency and ohms
- Two channel simultaneous source and measure capability for calibration of transmitters
- Power transmitters with internal loop supply
- Store frequently-used test setups for later use
"The CA71 Handy Calibrator is a small, lightweight, multifunction calibrator that can simultaneously source and measure voltage, current, resistance, TC, RTD, frequency, and pulse signals."
Simultaneous signal generation and measurement capability:
The CA71 lets you handle regular tests on TCs, RTDs and various other types of sensors and instruments, as well as operation checks when a problem has occurred (TC and RTD measurement functions are CA71 only.)
AC voltage (including supply voltage) measurement capability:
In cases where numerous signal converters and other devices are mounted on a rack or panel, the Handy Calibrator can be used to check the input and output signals of each device, while simultaneously checking the power supply.
Tuesday, September 8, 2009
Multifunction calibrator, MC4 is suitable for calibrating various process parameters, such as pressure, temperature and electrical signals. Calibration results are automatically stored in the MC4's memory. Data upload to PC using Beamex CMX Calibration Software is possible.
Monday, September 7, 2009
The Time Electronics Calibration Bench is designed for a wide range of calibration and test procedures. It covers temperature, pressure, and electrical signals; calibrating multi-meters, AC/DC signal sources, frequency timers, oscilloscopes, resistance boxes, thermocouple transmitters, pressure transducers, loop signal indicators, and much more
Time Electronics - Precision Calibration Equipment
Time Electronics Ltd is an international company that designs and manufactures calibration, test, and measurement equipment.