| Overview |
| Models |
STR735D, STR745G |
| Environmental Conditions |
| Maximum Allowable Working Pressure (MAWP) |
STR735D: 750 psig (51.7 bar)
STR745G: 500 psig (35 bar); limited by body or seal rating |
| Ambient Temperature Limits |
-55 to +90 deg C (Storage); LCD display: -20 to +70 deg C (Operation) |
| Relative Humidity |
0 to 100% RH |
| Measurement Type |
Differential Pressure (DP) and Gauge Pressure (GP) with Remote Diaphragm Seals |
| Rangeability |
Up to 100:1 (STR735D: 111:1) |
| Stability |
Not explicitly stated, but optimized for minimal temperature effects |
| Processing & Performance Metrics |
| Maximum Turndown Ratio |
STR735D: 111:1
STR745G: 100:1 |
| Accuracy |
Up to 0.075% of span (standard), 0.040% (optional for STR745G) |
| Communication & Protocols |
| Output/Communications |
4 to 20 mA, HART (v7.0) |
| Functional & Control Features |
| Sensor Technology |
Piezoresistive sensor with static pressure & temperature compensation |
| Diagnostics |
Comprehensive on-board diagnostics, critical/non-critical, SIL 2/3 certified |
| Standards & Certifications |
| Safety Approvals |
SIL 2/3 Certified, Dual Seal Design, NAMUR NE-43 Compliance, World Class Overpressure Protection |
| Approvals |
FM, CSA, ATEX, IECEx, NEPSI, KOSHA, EAC, CCoE, UATR, SAEx, INMETRO, IEC 61508 SIL 2/3 |
| Technical Specifications |
| Display Options |
Modular LCD (Alphanumeric), Multiple screens, Configurable units, Multiple languages (EN, RU) |
| Supply Voltage |
10.8 to 42.4 VDC (IS versions limited to 30 VDC), 0 to 1,440 ohms load resistance |
| Pressure Range |
STR735D: 100 psid (-100 to +100 psid, min span 0.9 psid)
STR745G: 500 psig (-14.7 to +500 psig, min span 5 psig) |
| I/O Capabilities |
| Response Time |
Not explicitly stated, but similar SmartLine transmitters are as fast as 100 ms millisecond |
| Configuration |
External Zero, Span & Configuration Capability; Three-Button Local Configuration |
