Steam has been a reliable and energy-efficient source of heat & control for a long time. It has become crucial for diverse applications across various industries. Techtrol Electronic Drum Level Marker (EDLI) gives a state-of-the-art arrangement for exact continuous level checking of water in boiler drums. As such it guarantees ideal boiler performance and protection, in this way avoiding expensive harms due to low or high water levels.
Working:
The system comprises water column mounted with no. of conductivity probes with an electronic unit and an optional remote display unit. The conductivity probes with a water column shape a resistivity cell, which along with a reference resistor makes a divider network. When a DC square wave passes through it, the electronics unit detects between steam and water.
Key Features:
- Customised Configuration: From 4 to 24 probes, extendable up to a maximum of 48 probes.
- Durable & Robust Build: Designed columns in carbon steel, stainless steel and chrome moly to withstand high pressure up to 3000 psi and extreme temperature up to 1200°F.
- Vacuum-brazed conductivity probes with zirconium oxide insulators are dependable and long-lasting.
- Highly Precise & Reliable Indication: EDLI gives precise readings indeed in demanding boiler environment, guaranteeing dependable monitoring of the drum level.
- Accurate Real-Time Monitoring: Continuously displays water level on display allowing immediate detection of water & steam, to help operators in making timely adjustments to boiler operations.
- Redundant Power Supply: Dual power supply for redundancy with power failure indication.
- Advanced Self-Diagnostics: Wire continuity checks to maintain cable integrity and system fault indicators for power & clock failure notifications.
- Remote Display Capability: Multiple remote displays up to 3 numbers.
- Built-In Alarm System: Settable alarms for high/low levels with relay outputs for improper detection of water/steam under abnormal conditions like water above steam to prevent operational issues and maintain safety.
- Validated Trip Logic: Fully verified trip logic with adjustable time delay for various alarms minimizes spurious trips.
- Sensitivity Adjustment – For low to high water conductivity 0.5 micro mho and above.
- Relay, 4-20mA & RS485 outputs: Relay outputs against each probe detection and various alarms and 4-20mA /RS-485 output for continuous monitoring.
- Suitable for Hazardous Environments: Available with an ex-proof enclosure or intrinsically safe option with a zener barrier for hazardous environments.
- Smart Communication & IIoT Integration: 4-20mA and relay outputs of EDLI can be integrated with IoT gateways for automation.
Approvals:
- Quality system accredited to ISO 9001.
- Design approval of pressure parts from IBR authority.
- Third-party inspection, testing and certification by approved international agencies.
- ATEX certification of blast-proofness for utilisation in explosive areas.
Applications:
The EDLI is ideal for a wide and varied range of industries, where boiler level monitoring is critical as in power generation, petrochemicals and refineries.
Conclusion:
The Electronic Drum Level Indicator ensures that your boiler system maintains the required water level, reducing the risk of damage and downtime while enhancing the operational safety and efficiency of your plant.
Author:
Mr. Rajesh Wagulde
General Manager Technical
Pune Techtrol Pvt. Ltd
