SERIES 626 & 628

SERIES 626 & 628 PRESSURE TRANSMITTERS

The Series 626 & 628 Pressure Transmitters converts a single positive pressure into a standard 4-20 mA output signal. The Series 626 and 628 can be used to accurately measure compatible gases and liquids; Series 626 full scale accuracy is 0.25%; Series 628 full scale accuracy is 1.0% (see specifications). Designed for industrial environments with a NEMA 4X (IP66) housing, this transmitter resists most effects of shock and vibration.

The Series 626 & 628 Pressure Transmitters provide accurate and dependable pressure measurement for a wide range of industrial applications. Designed for both pneumatic and hydraulic systems, these transmitters convert pressure into a stable electrical signal, supporting efficient control and monitoring without requiring extensive recalibration.

Engineered for demanding environments, the transmitters feature a rugged, weatherproof NEMA 4X (IP66) housing that protects against dust, moisture, and corrosion. The Series 626 offers high-accuracy performance at ±0.25% full scale, while the Series 628 provides a cost-effective solution with ±1.0% full scale accuracy. Both models support a wide selection of pressure ranges and electrical outputs to meet varied system requirements.

Technical Sheets

Instruction Manual

Catalog Page

Specifications

Accuracy Detail 626: 0.25% FS; 626: 0.20% RSS; 628: 1.0% FS; 628: 0.5% RSS; 626 Absolute Ranges: 0.5% FS; 626 absolute ranges: 0.30% RSS. (Includes linearity, hysteresis, and repeatability.)	Mounting Orientation Not Position Sensitive
Burst Pressure 500 psi Maximum	Operating Temperature, Max 200 °F
Compensated Temperature, Max 175 °F	Operating Temperature, Min 0 °F
Compensated Temperature, Min 0 °F	Output Detail 4 to 20 mA
Compliance CE	Power Consumption 38 mA
Compliance Note CE, Optional: NSF/ANSI 61/372, ANSI/UL 218, ANSI/UL 508, NEPA 20	Measurement Pressure, Min 0 psi
Enclosure Ratings IP66, NEMA Type 4X	Measurement Pressure Type Gauge
Loop Resistance 0 to 1000 Ω max	Process Connection Size 1/4 in
Materials, Wetted 316L Stainless Steel	Process Connection Type NPT Male
Media Compatibility Alcohols, Argon, Compatible Gases, Compatible Liquids, Nitrogen, Oils, Water	Proof Pressure Up to 200 psi
Response Time 300 ms	Supply Power Note 10 to 30 VDC (for 4 to 20 mA, 0 to 5, 1 to 5, 1 to 6 VDC outputs); 13 to 30 VDC (for 0 to 10, 2 to 10 VDC outputs); 5 VDC ± 0.5 VDC (for 0.5 to 4.5 VDC ratio to metric output), 10 to 35 VDC (for 4 to 20 mA with to CB option); 13 to 35 VDC or isolated 16 to 33 VAC (for selectable output with to CB option)
Supply Power Type DC	Supply Voltage 10 to 35 Vdc
Thermal Effects ± 0.02% FS/°F (includes zero and span)	Weight 283 g

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