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668-6
Pressure Transmitter, 1 % Accuracy, Differential, Tube, 0 Inch-H2O, 10 Inch-H2O, 1/4", Screw
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Manufacturer Standard Lead Time: 16 week(s)
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Product Information
ManufacturerDWYER
Manufacturer Part No668-6
Order Code4289956
Product Range668 Series
Technical Datasheet
Pressure TypeDifferential
Pressure Port TypeTube
Sensor Output TypeCurrent
Operating Pressure Min0Inch-H2O
Pressure Measurement TypeDifferential
Operating Pressure Max10Inch-H2O
Voltage Rating30VDC
Pressure Port Size1/4"
Port Style3/16" Tube
Transducer Connection / TerminationScrew
Supply Voltage Min12VDC
Supply Voltage Max30VDC
Media TypeDry Air, Dry Gas, Non-Corrosive / Non-Ionic Fluid
Output Interface-
Sensor Output TypeAnalogue
Housing MaterialPET (Polyester)
Operating Temperature Min-18°C
Operating Temperature Max65°C
Product Range668 Series
SVHCNo SVHC (04-Feb-2026)
Product Overview
668-6 is a low cost series 668 differential pressure transmitter capable of measuring low pressures with a ±1% accuracy - ideally suited for proper building pressurization, HVAC and air flow control. Variable capacitance sensor design provides excellent sensitivity and long-term stability. Compact, lightweight design makes installation simple and easy. Units also feature reverse-polarity protection.
- Pressure range from 0-10 water column
- Good accuracy at low pressure ranges
- Provide exceptional value for ensuring control and minimizing costly out of specification conditions
- High overpressure rating eliminates possible damage to unit reducing unnecessary service time
- Operating temperature limits from 0 to 150°F (-18 to 65°C)
- Can withstand up to 10psig overpressure with no damage to the unit
- Supply voltage range from 12 to 30VDC and 4 to 20mA, 2-wire output
- Terminal strip electrical connection and 3/16˝ OD fitting for 1/4˝ ID tubing pressure connection
- Response time is <lt/> 60ms
- Terminal strip electric connection and fire-retardant glass filled polyester housing
Technical Specifications
Pressure Type
Differential
Sensor Output Type
Current
Pressure Measurement Type
Differential
Voltage Rating
30VDC
Port Style
3/16" Tube
Supply Voltage Min
12VDC
Media Type
Dry Air, Dry Gas, Non-Corrosive / Non-Ionic Fluid
Sensor Output Type
Analogue
Operating Temperature Min
-18°C
Product Range
668 Series
Pressure Port Type
Tube
Operating Pressure Min
0Inch-H2O
Operating Pressure Max
10Inch-H2O
Pressure Port Size
1/4"
Transducer Connection / Termination
Screw
Supply Voltage Max
30VDC
Output Interface
-
Housing Material
PET (Polyester)
Operating Temperature Max
65°C
SVHC
No SVHC (04-Feb-2026)
Technical Docs (1)
Legislation and Environmental
Country of Origin:
Country in which last significant manufacturing process was carried outCountry of Origin:United States
Country in which last significant manufacturing process was carried out
Country in which last significant manufacturing process was carried outCountry of Origin:United States
Country in which last significant manufacturing process was carried out
Tariff No:90262040
US ECCN:EAR99
EU ECCN:NLR
RoHS Compliant:Yes
RoHS
RoHS Phthalates Compliant:Yes
RoHS
SVHC:No SVHC (04-Feb-2026)
Download Product Compliance Certificate
Product Compliance Certificate
Weight (kg):.136078