RI-257
Infrared Single Gas Monitor
Datasheet
The
model RI-257 sereies 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 & lightweight
- Easy to install
- Negligible interference from other gases
- Easy to read digital display
Applications
- Cleaning processes
- Cold-storage plants
- Drying rooms
- Refrigerators
Specifications
Model
RI-257Detection Principle | Non dispersive infrared (NDIR) |
Sample Method | Sample-drawing by built in pump |
Alarm Point | Dual Alarm (WARNING/ALARM) |
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 min after turns on power (but measurement starts in 2 min after power on) |
Power Source & Power Consumption | Power: AC 100V, AC117V, or AC220V +/- 10% 50/60Hz, max 50VA |
Ambient Temp/Humidity | 0~+40ºC (32-104ºF), 30-90%RH, Non Condensing |
Mounting Method | Wall Mounting |
Dimensions | Appros. 180 (W) x 355 (H) x 97 (D) mm |
Weight | Approx. 3.8kg (8.4 lbs) |
Painting color | Munsell 2.5 Y 9/2 |
| Standard Accessories | Fuse Dust Filter Instruction Manual Test Certificate |
| Optional Accessories | Gas Sampling Bag MC Filter |
Gases and Ranges Detection Chart
| Gas Detected | Range | Alarm set point |
| FC-14 (*) | 0-10000 ppm (50ppm/digit) | 3000 ppm |
| FC-116 (*) | 0-5000 ppm (25ppm/digit) | 2000 ppm |
| FC-C318 (*) | 0-5000 ppm (25ppm/digit) | 2000 ppm |
| Flon 23 | 0-10000 ppm (50ppm/digit) | 3000 ppm |
| Flon 32 | 0-10000 ppm (50ppm/digit) | 3000 ppm |
| Flon 41 | 0-5.000 vol% (0.025vol%/digit) | 2.000vol% |
| Flon 134a (Vertrel XP) | 0-5000 ppm (25ppm/digit) | 2000 ppm |
| Flon 225 | 0-5000 ppm (25ppm/digit) | 2000 ppm |
| IPA (iso-propyl alcohol) | 0-10000 ppm (50ppm/digit) | 3000 ppm |
* Specifications subject to change without notice.
* Wen ordering, please
specify one of those specified gases above.
(*) FC means Perfluoro compound
gas.
