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RI-257

Infrared Single Gas Monitor

Datasheet

RI-257 Infrared single gas monitor 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-257
Detection Principle
Non dispersive infrared (NDIR)
Sample 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 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
7.1 (W) x 14 (H) x 3.8 (D) inches
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.