DWYER Series 648B & 648C Differential Pressure Transmitter

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Description

Series 648B & 648C Differential Pressure Transmitter

Unidirectional and Bidirectional Ranges, Removable Terminal Block

 

The DWYER Series 648B & 648C Differential Pressure Transmitter are designed to be used with clean, dry air and other non-corrosive gases. Each unit features a push-activated zero function and an associated LED light indicator. DWYER Series 648B & 648C Differential Pressure Transmitter convenient push-button, zero calibration can be performed without any additional equipment, which significantly reduces time and cost for users. The dual color LED indicates if the transmitter is at normal operation, overpressure, or in the process of zero calibration.

 

Specifications

  • Service: Air and non-combustible, compatible gases.
  • Wetted Materials: 302 SS, glass, nickel, silicon rubber, polyethylene, acrylic, ABS and brass.
  • Accuracy: 648B: ±0.8% FS* at room temperature; 648C: ±0.4% FS* at room temperature. *RSS (Root Sum Square) includes non-linearity, hysteresis and non-repeatability.
  • Stability: ±1% FS/yr.
  • Temperature Limits: Operating: 0 to 170°F (-18 to 77°C); Storage: -65 to 185°F (-54 to 85°C).
  • Pressure Limits: 15 psi (100 kPa) proof pressure; 30 psi (200 kPa) burst pressure.
  • Thermal Effects: 648B: ±0.025% FS/°F (0.045%/°C); 648C: ±0.020% FS/°F (0.036%/°C).
  • Power Requirements: 13 to 32 VDC.
  • Output Signal: 4 to 20 mA.
  • Zero and Span Adjustments: Push-button for zero, potentiometer for span.
  • Response Time: Approximately 10 ms.
  • Max. Loop Resistance: DC: 0 to 950 Ω.
  • Electrical Connection: Detachable euro-style terminal block.
  • Process Connections: 3/16″ OD barbed fitting for 1/8″ ID push-on tubing.
  • Housing: SS and PC+ABS alloy.
  • Weight: 3.8 oz (108 g).

 

Models & Ordering

648B Differential Pressure Transmitter ( ±0.8% FS accuracy)

Model Description
648B-01 Range 0-.1″ w.c.
648B-02 Range 0-.25″ w.c.
648B-03 Range 0-.5″ w.c.
648B-04 Range 0-1″ w.c.
648B-05 Range 0-2.5″ w.c.
648B-06 Range 0-5″ w.c.
648B-07 Range 0-10″ w.c.
648B-08 Range 0-25″ w.c.
648B-13 Zero center range -.25-0-.25″ w.c.
648B-14 Zero center range -.5-0-.5″ w.c.
648B-15 Zero center range -1-0-1″ w.c.
648B-16 Zero center range -2.5-0-2.5″ w.c.
648B-17 Zero center range -5-0-5″ w.c.

 

648C Differential Pressure Transmitter ( ±0.4% FS accuracy)

Model Description
648C-01 Range 0-.1″ w.c.
648C-02 Range 0-.25″ w.c.
648C-03 Range 0-.5″ w.c.
648C-04 Range 0-1″ w.c.
648C-05 Range 0-2.5″ w.c.
648C-07 Range 0-10″ w.c.
648C-08 Range 0-25″ w.c.
648C-13 Zero center range -.25-0-.25″ w.c.
648C-15 Zero center range -1-0-1″ w.c.
648C-16 Zero center range -2.5-0-2.5″ w.c.
648C-17 Zero center range -5-0-5″ w.c.

 

 

Additional information

Model

648B-01, 648B-02, 648B-03, 648B-04, 648B-05, 648B-06, 648B-07, 648B-08, 648B-13, 648B-14, 648B-15, 648B-16, 648B-17, 648C-01, 648C-02, 648C-03, 648C-04, 648C-05, 648C-07, 648C-08, 648C-13, 648C-15, 648C-16, 648C-17

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