NET REMORA FIRST – THE NEW OEM REFRIGERANT SENSOR MODULE
- Reliable detection of R-290 and A2L Refrigerants
- Local relays for threshold alarms + RS-485 Modbus communication
- NET NDIR technology: no false alarms, no regular maintenance required
- 15+ years of expected lifetime
The new REMORA First from NET is a complete, ready-to-use and cost-effective sensor module aimed at making refrigerant leak detection easy, affordable and effective in any application scenario.
Detectable gases
| R-290 (0-2.1%vol) | R-454b (0-7.7%vol) |
| R-1234yf (0-6.2%vol) | R-454c (0-6.2%vol) |
| R-1234ze (0-6.5%vol) | R-455a (0-11.8%vol) |
| R-32 (0-14.4%vol) | R-744 (0-1%vol, 0-5%vol) |
| R-454a (0-6.3%vol) |
THE SYNTHESIS OF 10+ YEARS OF EXPERIENCE
NET has pioneered the application of NDIR technology to refrigerant leak detection. Now, with over 10 years of experience in developing products and supplying it to the industry, NET can offer:
- The strongest application knowledge and the best integration support available.
- The most complete line of refrigerant gas sensors on the market today, covering over 40 different common refrigerants.
- Field-proven technology and solutions.
NET microprocessor-based NDIR platform provides a linearized and temperature compensated reading, as well as complete diagnostics information while running constant self-check and self-calibration routines, reaching a Safety Integrity Level (SIL) of SIL2, the highest rating of all gas sensors on the market today.
Oil spray cover
IP65 Environmental protection
NET IREF NDIR core technology
Standard molex connector
Bumb test accessory
Integrated mounting holes
Local alarm relays
Versatile
- Comprehensive range of detectable gases (R-290, R-1234yf, R-1234ze, R-32, R-454a, R-454b, R-454c, R-455a).
- Easy integration with local relays for threshold and fault alarms, MODBUS protocol on RS-485.
Reliable
- NDIR technology ensures absolute gas selectivity without false alarms.
- Guarantees immunity to poisons and inhibitors, fail safe operation, extensive long term stability and expected lifetime (15+years).
Rugged
- Environmental compensation of measurement and extended temperature range -40 + 60°C.
- Glass reinforced, flame retardant IP65 Polyamide enclosure with integrated mounting holes complete with oleophobic filter and oil spray cover, to withstand the rigors of demanding environments.
Trusted
- Constant self-check and self-calibration routines.
- Based on NET field-proven NDIR technology.
- Undergoing the highest level of certification to ensure best-in-class reliability.
MULTIPLE APPLICATIONS
REMORA is the ideal solution for any refrigerant leak detection scenario, from direct integration in HVAC/R equipment such as chillers, rooftop units or heat pumps, to environmental monitoring in cold rooms, machinery rooms or refrigerated transports as well as occupied spaces such as hotel rooms, hospitals or office buildings.
MARKET LEADING TECHNOLOGY
Non-Dispersive Infrared (NDIR) has been the reference technology for refrigerant leak detection for over a decade, preferred to other available solutions in demanding and life-saving applications due to its unparalleled reliability: gas selectivity, poison immunity, fail safe operation, long term stability and extended lifetime (15+years).
NDIR BENEFITS
- GAS SELECTIVITY (NO CROSS INTERFERENCES = NO FALSE ALARMS)
- STABILITY = NO MAINTENANCE
- FAIL-SAFE DETECTION = NO UNDETECTED RISKS
- OPTICAL MEASUREMENT = IMMUNITY TO POISONING
- RESISTANCE TO ENVIRONMENTAL CONDITIONS
- SMART SENSOR = EASE OF INTEGRATION
REMORA is based on a glass reinforced, flame retardant IP65 Polyamide enclosure, complete with integrated mounting holes. The gas inlet is protected by an oleophobic filter and oil spray cover. All this ensures maximum protection against shocks, dust and contamination in any possible environment and application scenario.
REMORA gas detection is based on NET range of NDIR sensors – by a distance, the most complete on the market today, covering over 40 different common refrigerants across multiple platforms and detection ranges. NDIR detection ensures unparalleled gas selectivity, poison immunity, fail safe operation, long term stability and extended lifetime (15+years). The sensing part is microprocessor based, providing a linearized and temperature compensated reading, as well as complete diagnostics information while running constant self-check and self-calibration routines.
NET has now over 10 years of experience in detecting refrigerants with NDIR technology and can offer the best integration support available.
The REMORA module has a high-level interface with industry-standard 4-20mA analogue output and MODBUS protocol on RS-485, as well as local Threshold, Watchdog and fault alarm outputs. The power supply rating is 12…24VDC. The unit can be customized with different interface options, such as PokaYoka Automotive connector, NET standard connector and cable.
All the above makes the Remora sensor an ideal solution for any refrigerant leak detection scenario
| General | Sensing method | NDIR sensor |
| Operating temperature range | -40 +60°C | |
| Storage temperature range | -40 +85°C | |
| Operating humidity range | 0-95% non condensing | |
| Operating pressure range | 800-1200 mBar | |
| Enclosure | 25% Glass Reinforced, Flame Retardant, Polyamide 66 | |
| Enclosure Protection | Standard IP54 – IP65 on request | |
| MTBF | > 15 yrs (IR Source MTTF > 15 years) | |
| Dimensions | 79 x 85 x 35 mm | |
| Measurement | Response time | T90 <30 seconds |
| Accuracy | ±2.5% LFL @25°C | |
| Electrical | Power Voltage | Nominal 12-24Vdc or 24VAC±10% |
| Relays connection | 1 Fault+1 Alarm – SSR relays Normally closed or open. 400mA 60Vp | |
| Digital communication | Modbus protocol RS485 (Termination resistance of 120Ω normally present) |
| Reference standards | Performance Certification | IEC60335-2-40:2022 Annex LL – IEC TS 63542 – EN 50194/1 – EN 50676 |
| Safety Integrity Level (SIL2) | EN 61508:2010 Parts 1-7 | |
| EMC Certification | EN 61326 Part 1, EN 50270 | |
| IP Certification | EN 60529:1991-10+corr 1993+A1:2000+A2:2003+AC:2016 |
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