Instruments & Controls

By Staff April 28, 2003

Combination DMM and IR thermometer

Extech 450 and 470 autoranging digital multimeters (DMMs) feature built in, noncontact infrared (IR) thermometers. The thermometer provides fast measurements from -4 to 520 F. A laser pointer targets the area being measured. The distance to target ratio is 8:1 and emissivity is fixed at 0.95. The 450 has a 2000-count display and 0.5% basic dc V accuracy, while the 470 features true RMS with a 4000-count display, 0.3% basic dc V accuracy, capacity and frequency functions, and type K thermocouple measurements in addition to its IR capability. Extech Instruments Corp. Write 331 on PE card

Current-to-presure transducer

Series IP current-to-pressure transducer is designed for control applications that require a high degree of reliability and repeatability at a low cost. The transducer converts a current input signal to a linearly proportional pneumatic output pressure. Features include an internal volume booster, low air consumption, inversely proportional outputs, and flexible zero and span adjustments. The NEMA 4x enclosure allows the unit to be used in splashdown and outdoor applications. Dwyer Instruments, Inc. Write 332 on PE card

Air velocity flow transmitter

FX100 Series air velocity flowmeter is designed to monitor air velocity in HVAC applications. The transmitter can be wired for 4-20 mA, 0-5 Vdc, or 0-1 Vdc output. The unit transmits flow and temperature information. RS232 output and digital display are options. OMEGA Engineering, Inc. Write 333 on PE card

DeviceNet fiber optic converter

PSI-MOS-DNET modular fiber optic converter system for DeviceNet allows isolation of DeviceNet networks by converting the electrical signals from copper-wire-based sources to glass or polymer fiber technology, which offers the benefits of immunity to EMI, RFI, and surges, as well as enabling longer bus drops for star and tree topologies. Phoenix Contact, Inc. Write 334 on PE card