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| Series 643 Pressure
Transmitter features dual piezoresistive pressure sensors which
make it suitable for water, air or other compatible gases and liquids
at operating pressures to 250 psig. Electrical connections along with
zero and span adjustments are easily accessed under the top cover. The
small internal volume and minimum moving parts result in exceptional
response and accuracy fo 1% F.S. output. Two 4" NPT(F) pressure
connections are located on the bottom of the unit to ease
installation. Output signal is a standard 4-20mA.
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| PHYSICAL
DATA GENERAL  Pressure Connection: (2)1/4" NPT female. Maximum Compatiblity: 250psig (17.23 bar): 643-1, 500 psig(34.45 bar): 643-2 Media compatiblity: Gases & liquids compatible w/316, 316L SS. Electrical Connections: Terminal block. Housing: Aluminum, painted gray. Weight: 2 lbs. Adjustments: Accessible potentiometers. Standard Accessories: 316 SS mounting bracket & hardware. ELECTRICAL Power Supply: 10-35 VDC (2 wire). Output Signal: 4-20 mA DC (limited at 38 mA DC). Loop Resistance: 0-1300 Ohms DC maximum Current Consumption: 38 mA maximum DC. PERFORMANCE AT 70°F (21.1°C) Zero Output: 4 mA DC Span Output: 20 mA DC. Span: 16 mA DC. Accuracy: 1.0% of span (includes linearity, hysteresis & repeatablity). Span and Zero: Adjustable to 0.05% of Span. ENVIRONMENTAL Operating Temperature: 20 to 120°F (-6.7 to 49°C). Thermal Errors: ± 0.02%/°F typical.
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STOCKED MODELS
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