Honeywell STA840 SmartLine Absolute Pressure Transmitter Hastelloy C-276 HART 7.0 Protocol

STA840-HC-HART

Buy Honeywell STA840 HART 7.0 Protocol absolute pressure transmitter (500 psia, Hastelloy C-276). Piezoresistive sensor, 80 ms response, NAMUR NE-107 diagnostics, Experion PKS compatible. In stock, factory-direct price, ships within 48 hours.

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The Honeywell STA840 is a high-performance SmartLine absolute pressure transmitter featuring piezoresistive sensor technology. This Dual unit measures up to 500 psia (34.47 barA) with a minimum span of 2.5 psia. It is configured with a Hastelloy C-276 barrier diaphragm and HART 7.0 Protocol. 4-20 ma analog output with hart 7.0 digital protocol.

Key Features

  • NAMUR NE-107 extended diagnostics (HART, FF)
  • Piezoresistive sensor with on-chip temperature compensation
  • Plugged Impulse Line Detection (PILD) option
  • Stability up to 0.01% of URL per year for 15 years
  • Modular design — replaceable meter body, electronics, and indicators
  • Reference accuracy 0.03% of span (0.025% optional)

Full Configuration Details

Complete Ordering Code:
STA840
Transmitter Specifications
Model
Transmitter Model
STA840 SmartLine AP
Range
Upper Range Limit
500 psia (34.47 barA)
MinSpan
Minimum Span
2.5 psia (0.17 barA)
Turndown
Rangeability
200:1
Diaphragm
Barrier Diaphragm
Hastelloy C-276
Protocol
Communication
HART 7.0 Protocol
Accuracy
Reference Accuracy
0.03% of span (0.025% optional)
SIL
Safety
SIL 2/3 (IEC 61508)
Response
Response Time
80 ms
Enclosure
Enclosure Rating
Type 4X / IP66 / IP67
Warranty
Warranty
1-year standard, up to 15-year extended

Genuine Parts, Fast Delivery, Full Support

Every STA800 transmitter is factory-certified, 100% genuine, and covered by a 1-year warranty with after-sales technical support. Ready stock ships within 48 hours worldwide. Bulk pricing available — contact us for a quote within 12 hours.

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Full Configuration Details

Complete Ordering Code:
STA840
Transmitter Specifications
Model
Transmitter Model
STA840 SmartLine AP
Range
Upper Range Limit
500 psia (34.47 barA)
MinSpan
Minimum Span
2.5 psia (0.17 barA)
Turndown
Rangeability
200:1
Diaphragm
Barrier Diaphragm
Hastelloy C-276
Protocol
Communication
HART 7.0 Protocol
Accuracy
Reference Accuracy
0.03% of span (0.025% optional)
SIL
Safety
SIL 2/3 (IEC 61508)
Response
Response Time
80 ms
Enclosure
Enclosure Rating
Type 4X / IP66 / IP67
Warranty
Warranty
1-year standard, up to 15-year extended

Documents

Manuals: