operational steps for the BARTEC 07-7331-230H/1010 Pressure Transmitter
BARTEC 07-7331-230H/1010 Hazardous Area Pressure Transmitter
Installation & Operation Procedure
1. Pre-Installation Verification
| Checkpoint | Requirement |
|---|---|
| Zone Certification | ATEX II 1G Ex ia IIC T4 Ga / IECEx Ex ia IIC T4 |
| Ambient Limits | -40°C to +85°C (operating) |
| Pressure Range | 0…100 bar (model 1010 variant) |
| Seal Integrity | Confirm O-ring (FKM) undamaged (PN: 07331-230H-OFKM) |
2. Wiring Procedure
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graph LR
A[Power OFF Circuit] --> B[Verify Intrinsic Safety Barrier]
B --> C>Connect per Diagram</br>Pin 1: +10-30VDC</br>Pin 2: Signal Output</br>Pin 3: Ground]
C --> D[Torque Terminals: 0.8 Nm ±0.1 Nm]
D --> E[Apply Conduit Seal (IP66/UL Type 4X)]
Critical: Use only shielded twisted-pair cables (max. capacitance: 100nF/km; inductance: 1mH/km)
3. Calibration Sequence
- Zero Adjustment:
- Vent process connection → Press “ZERO” button for 3s (LED flashes green)
- Span Calibration:
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a. Apply reference pressure (e.g., 80 bar)
b. Hold "SPAN" + "ZERO" for 5s until LED solid green
c. Release when output matches reference (±0.5% FS tolerance)
- Validation:
- Cycle pressure from 0→100%→0 → Confirm hysteresis <0.1% FS
4. Status Indicators
| LED | State | Meaning |
|---|---|---|
| Power | Solid Green | Normal operation |
| Flashing Red (1Hz) | Over-range fault | |
| Diagnostic | Flashing Yellow | Calibration mode active |
5. Maintenance Protocol
| Action | Interval | Tool |
|---|---|---|
| Diaphragm inspection | 6 months | BARTEC test kit 07-7350 |
| Ground continuity verification | 12 months | Megger (500VDC, >10MΩ) |
| Full metrological recertification | 24 months | ISO 17025-accredited lab |
6. Critical Safety Measures
EX PROTECTION INTEGRITY:
- Torque process connection: 35 Nm ±5 Nm (use anti-seize compound PN: BARTEC-AS7)
- Never exceed maximum proof pressure (150 bar)
- Isolate power before servicing (EN 60079-14 compliance)
DECLASSIFICATION PROCEDURE:
- Purge with inert gas (N₂) for 5 min
- Remove device using BARTEC Ex-approved tool KT-230H
- Seal open port immediately
7. Troubleshooting Guide
| Fault | Solution |
|---|---|
| No output signal | Check intrinsic safety barrier loop resistance (<250Ω) |
| Erratic readings | Verify diaphragm for particulate contamination |
| LED flashing red | Reduce process pressure; recalibrate span |
| Communication loss | Test cable capacitance (max. 83nF for Ex ia) |
BARTEC 07-7331-230H/1010 PDF
BARTEC 07-7331-230H-1010
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