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3G Electric
Dwyer 645-5 transmitter - Measurement
DwyerMeasurement

Dwyer 645-5 transmitter

The Dwyer 645-5 is a differential pressure transmitter for process monitoring and control across industrial applications. It delivers ±0.25% accuracy with 0–50 psid range and 30–50 ms response time, housed in…

SKU 3G-CBM-02203

Brand
Dwyer
Item
645-5 transmitter
Category
Measurement
UNSPSC
41112412 — Pressure gauge
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Dwyer
type
differential_pressure_transmitter
model
645-5
housing
stainless_steel_aluminum
accuracy
±0.25%
ip rating
IP65
connection
1/4"-18 NPT
response time
30-50 ms
pressure range
0-50 psid
loop resistance
0-1000 Ω
pressure range bar
0-3.45 bar

Technical Documents

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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dwyer 645-5 is a differential pressure transmitter for process monitoring and control across industrial applications. It delivers ±0.25% accuracy with 0–50 psid range and 30–50 ms response time, housed in stainless steel aluminum with IP65 protection for reliable field deployment.

Frequently Asked Questions

Where can I buy the Dwyer 645-5 transmitter worldwide?

Order the Dwyer 645-5 from 3G Electric, an authorised distributor. We handle customs, logistics, and delivery worldwide. Lead time on request — contact us for availability and shipping details.

What is the response time and accuracy of the Dwyer 645-5?

The Dwyer 645-5 delivers ±0.25% accuracy with a response time of 30–50 ms. It measures differential pressure from 0–50 psid (0–3.45 bar) and connects via 1/4"-18 NPT ports.

Is the Dwyer 645-5 suitable for outdoor or harsh industrial environments?

Yes. The 645-5 is housed in stainless steel and aluminum with IP65 protection, making it reliable for field deployment in wet, dusty, or corrosive industrial settings.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management
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Dwyer Products

3G Electric supplies Dwyer measurement. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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