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Series 681 Sanitary Pressure Transmitter
Brand: Dwyer Instruments, LLCThe SERIES 681 Sanitary Pressure Transmitter is designed to meet 3A standards for applications in food, dairy, beverage and pharmaceutical processing, liquid level control, and sanitary pipelines.
The unit is fully sealed to withstand high pressure washdown in Clean-in-Place (CIP) and Sterilize-in-Place (SIP) installations.
The Series 681 is designed with a unique, no liquid fill diaphragm and a sanitary clamp pressure fitting for easy installation with negligible clamping effect. A conduit fitting, shielded cable with vent tube and sealed screws for zero and span adjustment combine to make the Series 681 completely watertight.
Features- Fully sealed to withstand Clean-in-Place and Sterilize-in-Place installations supports regulatory conditions for sanitary processes
- Sanitary clamp fitting makes for easy installation
1 - 9 of 9 Part Numbers
681-101
681-22
681-32
681-72
1 - 9 of 9 Part Numbers
Specifications
Brand
Accuracy
- ± 0.20 % of Full Scale (Includes Non-Linearity, Hysteresis & Non-Repeatability)
Approvals & Certifications
- CE
Cable Length
- 15 feet (4.5 metres)
Compensated Temperature
- -7° to 80° C (20° to 180° F)
Electrical Connectors
- 1/2” Conduit
Fill Material
- No Liquid Fill Diaphragm
Humidity
- 10 to 90 % Relative Humidity, Non-Condensing
Loop Resistance
- 800 ohms
Media
- Compatible Gases
- Compatible Liquids
Output
- 4-20 mA, 2-Wire
Overpressure & Static Pressure Limits
- From psi: 50 (kPa: 345, bar: 3.4) to psi: 180 (kPa: 1,241, bar: 12.4)
Power Requirement
- 9-30 Vdc
Pressure Range
- bar: 0 to 4.1
- kPa: 0 to 413.6
- psi: 0 to 60
Pressure Type
- Gauge
Response Time
- ≤ 10 milliseconds
Span & Zero Adjustments
- ± 0.5 mA, Non-Interactive
Span & Zero Effect
- Zero & Span Shift: ± 0.15 % of Full Scale for Ranges up to 30 psi
- Zero & Span Shift: ± 0.25 % of Full Scale for Ranges > 30 psi
Temperature Effect
- Zero & Span: ± 2.0 % of Full Scale/38° C (100° F)
Temperature Range
- -40° to 125° C (-40° to 260° F)
Tri-Clamp Connection
- 1-1/2” Sanitary Clamp
- 2” Sanitary Clamp
Wetted Materials
- 316L Stainless Steel
- Sanitary process applications
- Food and beverage processing
- Water processing
- Dairy processing
- Pharmaceutical processing