668C-14

Pressure Transmitter, Differential, Dual Axial Barbed, Same Side, -2.5 Inch-H2O, 2.5 Inch-H2O

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DWYER 668C-14
ManufacturerDWYER
Manufacturer Part No668C-14
Order Code4289982
Product Range668 Series
Your Part Number
Available to Order
Manufacturer Standard Lead Time: 10 week(s)

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QuantityPrice (inc GST)
1+S$517.500 (S$564.075)
Price for:Each
Minimum: 1
Multiple: 1
S$517.50 (S$564.08 inc GST)
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Added to your Order Confirmation, Invoice, and Dispatch note for this order only.

Product Information

ManufacturerDWYER
Manufacturer Part No668C-14
Order Code4289982
Product Range668 Series
Technical Datasheet
Pressure TypeDifferential
Operating Pressure Min-2.5Inch-H2O
Operating Pressure Max2.5Inch-H2O
Pressure Port Size3/16"
Transducer Connection / TerminationTerminal Strip
Supply Voltage Min12VDC
Supply Voltage Max30VDC
Media TypeAir, Non-Conductive Gas
Output Interface-
Sensor Output Type4mA to 20mA
Housing MaterialPET (Polyester), Glass Filled Body
Operating Temperature Min-18°C
Operating Temperature Max65°C
Product Range668 Series
SVHCNo SVHC (04-Feb-2026)

Product Overview

668C-14 is a low cost series 668 differential pressure transmitter. It is capable of measuring low pressures with ±1% accuracy, ideally suited for proper building pressurization and air flow control. Transmitters can withstand up to 10psig overpressure with no damage to the unit. Variable capacitance sensor design provides excellent sensitivity and long-term stability. Compact, lightweight design makes installation simple and easy. Good accuracy at low pressure ranges provides exceptional value for ensuring control and minimizing costly out of specification conditions. Typical applications include variable air volume systems, HVAC and building management.

  • Differential pressure transmitter with conduit cover, range from 0 to ±2.5W.C
  • Features reverse-polarity protection
  • High overpressure rating eliminates possible damage to unit reducing unnecessary service time
  • Operating temperature limits from 0 to 150°F (-18 to 65°C)
  • Supply voltage range from 12 to 30V DC
  • 4 to 20mA, 2-wire output
  • Response time is less than 60ms and loop resistance range from 0 to 800 ohm
  • Terminal strip electrical connection
  • 3/16˝ OD fitting for 1/4˝ ID tubing pressure connection
  • Fire retardant glass filled polyester housing

Technical Specifications

Pressure Type

Differential

Operating Pressure Min

-2.5Inch-H2O

Pressure Port Size

3/16"

Supply Voltage Min

12VDC

Media Type

Air, Non-Conductive Gas

Sensor Output Type

4mA to 20mA

Operating Temperature Min

-18°C

Product Range

668 Series

Pressure Port Type

Dual Axial Barbed, Same Side

Operating Pressure Max

2.5Inch-H2O

Transducer Connection / Termination

Terminal Strip

Supply Voltage Max

30VDC

Output Interface

-

Housing Material

PET (Polyester), Glass Filled Body

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
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):.264444