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Dwyer 626 & 628 Series Industrial Pressure Transmitters
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Dwyer Instruments

Dwyer 626 & 628 Series Industrial Pressure Transmitters

SKU · 24036 · 626 & 628 Series · Brand: Dwyer Instruments
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Quote on request
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Industrial PT; 0–5 to 8000 psi; 0.25%/1.0% FS; NEMA 4X. RFQ + selection help.

Download datasheet PDF

RFQ cart holds BOM lines only. Submit for engineering quote.

Key parameters

Measuring range
Absolute and gauge ranges; model-dependent (see catalog range table)
Accuracy
626: 0.25% FS / 0.20% RSS; 628: 1.0% FS / 0.5% RSS; 626 absolute: 0.5% FS / 0.35% RSS
Output
4–20 mA, 0–5 / 1–5 / 0–10 / 0.5–4.5 VDC; selectable outputs on -CB
Process connection
⅛/¼/½ male NPT; ¼ female NPT; BSPT/BSPP/SAE options
Electrical connection
Wire end, Hirschmann DIN, Packard, Deutsch, M12
Wetted parts
316L SS oil-filled sensor; optional C-276
Download datasheet PDF

Fits general industrial gauge/absolute pressure where you need a Dwyer 626 (0.25% FS) or 628 (1.0% FS) transmitter with 4–20 mA or voltage outputs and NEMA 4X (IP66) packaging.

Key advantages

  • Ranges — About 0–5 to 0–8000 psig; absolute to 0–300 psia; metric to 40 bar
  • Accuracy — 626: 0.25% FS / 0.20% RSS; 628: 1.0% FS / 0.5% RSS
  • Outputs — 4–20 mA, 0–5/1–5/0–10/0.5–4.5 VDC; selectable on -CB
  • Wetted — 316L SS oil-filled; optional C-276
  • Enclosure — NEMA 4X (IP66); SS general-purpose or cast aluminum conduit box

Typical applications

  • Compatible gas/liquid industrial pressure.
  • OEM panels needing selectable voltage.
  • NSF/UL optional approval packages.

Selection guide

  • 626 vs 628 — Accuracy class
  • Range / absolute — Catalog table
  • Output / housing — mA vs V; -GH vs -CB
  • Connection — NPT/BSPT/BSPP/SAE

Common mistakes

  • Ordering 628 when 0.25% FS is required.
  • Wrong electrical connector for cable plant.
  • Ignoring compensated 0–175 °F band.

When to RFQ / what to tell us

  1. 626/628, range, output, connection.
  2. Approvals; quantity; ship-to.

Request a Quote · Get selection help

Specs

SpecValue
SKU24036
BrandDwyer Instruments
Model626 & 628 Series
Product typePressure Transmitter
Measuring rangeAbsolute and gauge ranges; model-dependent (see catalog range table)
Accuracy626: 0.25% FS / 0.20% RSS; 628: 1.0% FS / 0.5% RSS; 626 absolute: 0.5% FS / 0.35% RSS
Output4–20 mA, 0–5 / 1–5 / 0–10 / 0.5–4.5 VDC; selectable outputs on -CB
Wetted materials316L SS oil-filled sensor; optional C-276
EnclosureNEMA 4X (IP66) SS general-purpose (-GH) or cast aluminum conduit box (-CB)
Temperature limit0 to 200 °F (−18 to 93 °C)
Compensated temperature0 to 175 °F (−18 to 79 °C)
Thermal effect626: ±0.02% FS/°F; 628: ±0.04% FS/°F
Power10–30 VDC (4–20 mA / most V outs); 13–30 VDC (0–10 V); 5 VDC ±0.5 (ratiometric)
Response time300 ms
Process connection⅛/¼/½ male NPT; ¼ female NPT; BSPT/BSPP/SAE options
ElectricalWire end, Hirschmann DIN, Packard, Deutsch, M12
ApprovalsCE; NSF/ANSI 61/372 optional; ANSI/UL 218 optional; ANSI/UL 508 optional; NEPA 20 optional
FeaturesOptional freeze/thaw, vibration, overpressure protection; optional LCD on -CB

Documents

FAQ

Q: 626 vs 628? A: 626 is 0.25% FS class; 628 is 1.0% FS class.

Q: Enclosure? A: NEMA 4X (IP66).

Q: What should I send for a quote? A: Model/range/output/connection, quantity, ship-to.

Links

ParameterValue
Measuring rangeAbsolute and gauge ranges; model-dependent (see catalog range table)
Accuracy626: 0.25% FS / 0.20% RSS; 628: 1.0% FS / 0.5% RSS; 626 absolute: 0.5% FS / 0.35% RSS
Output4–20 mA, 0–5 / 1–5 / 0–10 / 0.5–4.5 VDC; selectable outputs on -CB
Process connection⅛/¼/½ male NPT; ¼ female NPT; BSPT/BSPP/SAE options
Electrical connectionWire end, Hirschmann DIN, Packard, Deutsch, M12
Wetted parts316L SS oil-filled sensor; optional C-276
ApprovalsCE; NSF/ANSI 61/372 optional; ANSI/UL 218 optional; ANSI/UL 508 optional; NEPA 20 optional
EnclosureNEMA 4X (IP66) SS general-purpose (-GH) or cast aluminum conduit box (-CB)
Temperature Limit0 to 200 °F (−18 to 93 °C)
Compensated Temperature0 to 175 °F (−18 to 79 °C)
Thermal Effect626: ±0.02% FS/°F; 628: ±0.04% FS/°F
Power Requirement10–30 VDC (4–20 mA / most V outs); 13–30 VDC (0–10 V); 5 VDC ±0.5 (ratiometric)
Response Time300 ms
Weight10 oz (283 g)
Special FeaturesOptional freeze/thaw, vibration, overpressure protection; optional LCD on -CB