DEIF DQ72-X 4-20mA Pressure Indicator Meter (0-25 BAR)

The DEIF DQ72-X (MPN: 2961010720) is a commercial-grade, quadratic moving-coil switchboard instrument for severe maritime and industrial process automation systems. This exact item has a factory tuned linear analog scale ranging from 0 to 25 BAR. It is a very accurate remote visual indicator for pressure monitoring systems when used with external pressure transmitters and operates on a standardized 4-20mA DC electrically suppressed zero input loop.

The instrument is contained in a tough, self-extinguishing polycarbonate case complying with UL94 (V0) flame-retardant specifications. The 90° pointer deflection mechanism is designed to withstand the high shock and vibration characteristic of marine engine rooms and cargo control consoles.

Model Details:

• Brand: DEIF
• Model Name/Number: DQ72-X
• Manufacturer Part Number (MPN): 2961010720-02 (Calibrated variants include suffix configurations)
• Condition: Brand New (Original Package / Open Box for verification)
• Part Number Cross-References:
• DEIF 100010727/20
• DEIF 400011488-10
• RAMA113564 (Internal industrial supplier SKU)
• 794.001.01020

Technical Details: DEIF DQ72-X 0-25 BAR

Key Features

1. Power supply-free, electrically suppressed 4-20mA input, optimized for easy integration into conventional industrial automation networks and signal conditioning loops.
2. Class 1.5 precision positioning: Pointer positioning within normal industrial tolerances, in full conformity with EN 60051 and IEC 51 regulatory standards.
3. Interchangeable Scale Plates – The scale mechanism is tool free, allowing the scale plate to be field-swapped without recalibration of the internal movement calibration.
4. Marine-Grade Build Quality: Constructed from self-extinguishing polymers (UL94-V0) and high-torque pivots to stop the needle from shifting during heavy sea shocks.
5. Touch Proof Protection Supplied with standard clip on terminal cover shield to avoid inadvertent contact in high density switchboard configurations.

System Compatibility

• The DEIF DQ72-X is universally compatible with any marine or industrial control panel that accepts a standard 68x68mm DIN cutout. It interfaces seamlessly with the following system families:
• Pressure Transmitters: Danfoss MBS 3000/MBS 33M, Wika S-10/S-20, and Rosemount 3051 series transmitters with 4-20mA loop configurations.
• Control Systems: Integrated Main Engine Control Panels, Marine Switchboards, Cargo Control Consoles, and Auxiliary Machinery spaces.
• DEIF Ecosystem Equipment: CGC 200/400 Compact Genset Controllers, AGC Series Advanced Genset Controllers, and UniLine system modules.

Uses:

• Main & Auxiliary Engine Lubricating Oil Pressure Systems Real-time monitoring of main engine sump oil lines.
• Marine Boiler Steam Pressure Indication: Readings of steam header and feed water lines up to 25 BAR. Easy to read.
• Fuel Oil Transfer & Purifier Systems: Booster pump discharge pressure remote monitoring Heavy fuel oil (HFO) separator status remote monitoring
• Ballast & Fire Main Line Monitoring Sea-water pressure in utility switchboards directly indicated.
• Hydraulic System Power Packs: Continuous pressure feedback to steering gear or deck equipment control.

Maintenance Tip: Field Re-Scaling

If your system pressure transmitter needs to be reassigned to a different pressure scale range later (e.g., swapping down to a 0-16 BAR loop), you do not need to replace the entire meter assembly. DEIF designed the DQ-X series with a dynamic pop-out front window cover. Simply press the top portion of the bezel tab, slide out the 0-25 BAR scale plate using a clean flat screwdriver blade, and insert a new factory scale plate. Since the underlying input remains a standard 4-20mA loop, no recalibration or re-zeroing of the internal coils is necessary. Always verify that your rear terminal cover shield is snapped securely in place post-installation to prevent localized shorts from metallic dust common in marine engine spaces.