Pressure Transmitter Suits Hazardous Service

The Model 121 provides a simple, low-cost loop-powered 8–28-Vdc two-wire 4–20mA transmitter. The unit features a ½-inch NPT interface with an easy-to-wire industrial terminal strip and a removable cover. Accuracy is +2% from 20% to 100% of full scale. Temperature operating range is -20°F to 150°F (-20°C to 65°C). Model 121 also has a push-button zero reset feature. It's available in aluminum or 316 S.S. pressure housing with 316 S.S. and ceramic internal parts. Safe working pressure is 6,000 PSIG (0–400 bar) Units are available in different pressure ranges from 0-5 PSID (0–3 bar) to 0-110 PSID (0-7 bar).