Product Details
Configured for high-accuracy liquid and gas differential pressure measurement in DCS loops, the Honeywell 51305829-400 (51305829-400 Differential Pressure Transmitter) provides direct physical signal execution through primary process connections.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 51305829-400 |
| Brand | Honeywell |
| Origin | USA / Global Manufacturing |
| Operating Temp | -40 to 82 deg C (-40 to 180 deg F) |
| Power Consumption | Loop-powered via 12-24 VDC supply voltage |
| Measurement Range | 0 to 100 inH2O (0 to 100 inches of water) |
| Overpressure Limit | -1 to 20.7 bar (-15 to 300 psi) |
| Output Protocol | 4-20 mA DC current loop, HART, FOUNDATION Fieldbus |
| Reference Accuracy | +/-0.15% of span (+/-0.25% FS max) |
| Repeatability | +/-0.10% of FS |
| Long-Term Stability | +/-0.05% of span per year |
| Turndown Ratio | 10:1 |
| Enclosure Protection | NEMA 4X / IP66 rated |
| Process Connection | 1/4 in NPT female |
4-20 mA HART Loop Protocol and FOUNDATION Fieldbus Connectivity
The 51305829-400 differential pressure assembly converts piezoresistive element deflection into a calibrated 4-20 mA DC current signal over two-wire loop networks. Integrated digital processing units support HART protocol overlay and option-card FOUNDATION Fieldbus communications, allowing direct integration into centralized DCS asset management software.
Internal signal conditioning includes active temperature compensation operating from -40 to 40 deg C (-40 to 104 deg F) to minimize thermal span errors. Built-in channel-to-channel isolation and surge suppression circuits isolate internal piezoresistive sensing circuitry from field wiring transients and common-mode loop ground potential differences.
Frequently Asked Questions
Q: What power supply range is required to drive the 51305829-400 output loop?
A: The transmitter operates on a 12 to 24 VDC power supply connected directly across the two-wire 4-20 mA current loop terminals.
Q: What process connection size is provided on the transmitter body?
A: Physical process interface ports are standard 1/4 in NPT female connections.
Q: How is thermal baseline drift minimized across changing ambient conditions?
A: Onboard temperature compensation algorithms continuously correct sensor cell output across the -40 to 40 deg C (-40 to 104 deg F) compensated operating band.
Field Installation Guidelines
- Mount the transmitter securely using the integrated bracket holes, ensuring process ports are oriented to allow adequate condensate drainage or impulse line venting.
- Thread impulse piping into the 1/4 in NPT process connections using approved PTFE tape or thread sealant, achieving a minimum of 5 full threads engagement.
- Connect two-wire 4-20 mA loop wiring to the internal terminal block, taking care to properly ground cable shielding at the control cabinet end only.
- Ensure enclosure cover O-rings are fully seated and conduit plugs are sealed to maintain NEMA 4X / IP66 ingress protection ratings in outdoor environments.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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