STG740 is a SmartLine STG700 gauge-pressure transmitter with a 500 psi (35 bar) upper range limit. It supports high turndown and modular display options for industrial pressure measurement.
Performance and Electrical Profile
Model family
SmartLine STG700 gauge pressure
STG740 pressure range
Up to 500 psi (35 bar)
Maximum turndown
100:1
Standard accuracy
Up to 0.055% of span
HART supply
10.8 to 42.4 VDC
DE supply
15 to 49.3 VDC
Display choices
Modular alphanumeric or advanced graphics LCD
Wetted diaphragm choices
316L stainless steel, Hastelloy C-276, Monel 400 or tantalum, model dependent
Five Selections That Define the Transmitter
RANGE STG740 pressure capsule
WETTED Process-compatible material
CONNECT Process and electrical entries
SIGNAL HART or DE selection
APPROVAL Site-area requirement
The short model name does not define a complete replacement. Verify the full model-selection string, calibrated range, output protocol, wetted material, process connection, housing and approvals.
AMIKON SUPPLY SERVICE
Pressure Instrument Spares, Properly Specified
AMIKON supports exact-part sourcing, responsive quotation and worldwide delivery for industrial maintenance teams.
12-Month Warranty Notify us within 7 days if a concern is found. Eligible items must remain in original condition and include a clear return reason. Return or replacement follows inspection; return shipping remains with the buyer.
Why is STG740 alone insufficient for replacement? The complete selection string defines protocol, process connection, materials, display, housing and approvals. Those choices can change installation suitability.
When can high turndown become a poor choice? If the calibrated span is extremely small relative to the capsule range, installation effects and process conditions may dominate practical accuracy.
Why must wetted material be checked? Process chemistry and temperature determine corrosion compatibility. A mechanically matching transmitter can still be unsuitable if the diaphragm alloy differs.
Can a HART unit directly replace a DE unit? Not automatically. Verify control-system input compatibility, loop power, communication method, configuration tools and fail-state behavior.
What installation detail most often shifts the zero? Mounting position, impulse-line head, remote-seal elevation and trapped gas or liquid can introduce a static offset that must be considered during setup.
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Request a Fully Specified STG740 Quote
Send the complete model string, calibrated range, process connection and destination.