The AshcroftÂ® DXLdp low-pressure transmitter with SpoolCalâ„¢ process valve actuator easily can be validated and calibrated in place without disturbing process tubes or wiring, states the manufacturer. The SpoolCal tees the process pressure out to a hand-held calibrator. A twist to the right puts the user in calibration mode. The front access test jacks provide on-line reference signal without removing wiring, avoiding signal interruption, says the company. The transmitter features 2:1 turndown and range status LEDs for instant troubleshooting information, the manufacturer states.
Dresser Instruments, Dresser Inc., 250 East Main St., Stratford, CT 06614-5145; 203-378-8281 or 800-328-8258; www.ashcroft.com.