- All Products
- Shop by Brands
- BW Technologies
- BW Technologies
- BW Technologies Monitors
- Models
- BW Clip
- BW Clip4
- GasAlertClip Extreme
- GasAlert Extreme
- GasAlertMicroClip XT
- GasAlertMicroClip XL
- GasAlertMicroClip X3
- GasAlertQuattro
- GasAlertMax XT II
- GasAlertMicro 5 Series
- SamplerPak
- IntelliDox Docking System
- MicroDock II
- BW Ultra
- BW Solo
- Gas Monitors
- Gas Monitor Manufacturers
- BW Technologies
- Bacharach
- Biosystems
- Crowcon
- Gas Clip Technologies
- GfG Instruments
- GMI/Detcon
- Honeywell Analytics
- Industrial Scientific
- MSA
- RAE Instruments
- RKI Instruments
- Gas Monitor Categories
- Single-Gas Monitors
- Multi-Gas Monitors
- Zero Maintenance Monitors
- Fixed System Gas Monitors
- Confined Space Kits
- Wireless Fixed Point Gas Detectors
- Hydrogen Sulfide (H2S) Monitors
- Calibration Gas
- Combustion Analyzers
- Water Quality
- Reliability Instruments
- Refractometers
- HVAC
- Weather
- Temperature
- Laboratory
- Sound
- IAQ
- Electrical
- All Categories
RKI Instruments RI-257, Refrigerant Monitor, Fixed, (Specify Gas) - RI-257
Item #:
RI-257
Brand:
RKI Instruments
Share this product:
RI-257 Refrigerant Monitor, Fixed, (Specify Gas) by RKI Instruments
The model RI-257 series are designed to measure the presence of either Fluoro compound (FC) gas, Hydrofluroro compound (HFC or HCFC) gas representing VERTREL XP (HFC-134a) or IPA in the specified range through the built-in continuous operation pump.
As they are based on NDIR (Non-Dispersive Infrared) method, the sample gas specified can be measured without interference from other gases.
Features
- Compact & light weight (Approx 3.8 kg)
- Easy to install
- Negligible interference from other gases
- Easy to read digital display
Applications
- Cleaning processes
- Cold-storage plants
- Drying rooms
- Refrigerators
*Please note we can only ship RKI products to customers within the United States
| Detection principle | NDIR (Non-dispersive infra-red) |
| Measuring gas & range and alarm point | See the detection chart below |
| Sampling method | Sample-drawing by built-in pump |
| Alarm point | Dual alarm (WARNING/ALARM) Run: Latched mode (non-latched after alarm check) Alarm lamp: Lamp display (Yellow/Red) Contact output: a contact (b contact option) Contact rating: AC125V 0.1mA-0.5A (Resistance load) |
| Repeatability | ± 3% of F.S. |
| Alarm delay time | Within 30 seconds by supplying 1.6 times the density gas of alarm preset point |
| External output | 4-20mA (Current outputting type), Max 300 ohms (resistance load) |
| Warming up | 60 mins after turns on power (but measurement starts in 2 mins after power on) |
| Power source & power consumption | Power: AC 100V, AC 117V or AC 220V ± 10%; 50/60 Hz, max 50 VA |
| Ambient temp/humidity | 0 ~ +40°C, 30 – 90% RH, non-condensing |
| Mounting method | Wall mounting |
| Dimensions | Approx 180 (W) x 355 (H) x 97 (D) mm |
| Weight | Approx 3.8 kg |
| Painting colour | Munsell 2.5 Y 9/2 |
| Standard Accessories | Fuse, Dust Filter, Instruction Manual, Test Certificate |
| Optional Accessories | Gas Sampling Bag, MC Filter |
| Gas detection | Range |
Alarm set point |
| FC-14 (*) | 0 – 10000 ppm (50 ppm/digit) |
3000 ppm |
| FC-116 (*) | 0 – 5000 ppm (25 ppm/digit) |
2000 ppm |
| FC-C318 (*) | 0 – 5000 ppm (25 ppm/digit) |
2000 ppm |
| Flon 23 | 0 – 10000 ppm (50 ppm/digit) |
3000 ppm |
| Flon 32 | 0 – 10000 ppm (50 ppm/digit) |
3000 ppm |
| Flon 41 | 0 – 5.000% vol (0.025% vol/digit) |
2.000% vol |
| Flon 134A (Vertrel XP) | 0 – 5000 ppm (25 ppm/digit) |
2000 ppm |
| Flon 225 | 0 – 5000 ppm (25 ppm/digit) |
2000 ppm |
| IPA (Iso-propyl alcohol) | 0 – 10000 ppm (50 ppm/digit) |
3000 ppm |
