Name: RI-600 CO2 Gas Monitor
Brand: RKI Instruments

Overview

RI-600 RKI’s Model RI-600 measures carbon dioxide in the air. The RI-600 displays the measured carbon dioxide concentration on the LCD. If a high level of CO2 is present, the user is notified by an audible alarm tone and the multicolored LCD digital display. The monitor outputs an analog 4~20mA signal and gas alarm relay contacts open or close when the carbon dioxide concentration rises above preset alarm set point.

The Model RI-600 applies Non-Dispersive Infrared Ray Absorption (NDIR) technology to detect CO2. The infrared beam emitted from the light source passes through the gas cell and reaches the IR sensor. When CO2 enters the gas cell, the amount of infrared energy received by the IR sensor decreases since the infrared energy emitted from the IR source is absorbed by the CO2. This decreased energy is detected by the IR sensor and is displayed as a gas concentration. An optical band pass filter in front of the IR sensor passes the CO2’s absorption wave length. Power options are 115 VAC or 24 VDC. The RI-600 has two preset alarms, and comes ready to operate with a simple wall mount bracket and 10 foot power cord.

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Specifications

Model RI-600 Specifications
Detection Principle	Non-Dispersive Infrared
Gas Detected	Carbon dioxide (CO2)
Detection Range	0 – 2,000 ppm	0 – 5,000 ppm	0 – 10,000 ppm	0 – 2% Vol.	0 – 5% Vol.
Display Resolution	0 – 2,000 ppm: 1 ppm	0 – 2,000 ppm: 1 ppm 2,000 – 10,000 ppm: 10 ppm		0 – 2% Vol.: 0.005% Vol.	0 – 2% Vol.: 0.005% Vol. 0 – 5% Vol.: 0.010% Vol.
Alarm Points (adjustable)	1st: 1,000 ppm 2nd: 2,000 ppm	1st: 1,000 ppm 2nd: 5,000 ppm	1st: 1,000 ppm 2nd: 5,000 ppm	1st: 0.5% Vol. 2nd: 2.0% Vol.	1st: 0.5% Vol. 2nd: 3.0% Vol.
Sampling Method	Diffusion
Indication Accuracy	Within ±5 % of full scale (to the gas concentration signal output)
Response Time	90% response (T90) within 60 seconds
Gas Alarm Type	Two-step alarm (H-HH)
Alarm Display	First: Backlight LED is orange, buzzer Second: Backlight LED is red, buzzer
Alarm Pattern	Auto-reset
Alarm Contact	No-voltage contact 1a or 1b and normally de-energized (energized in response to an alarm)
Display	LCD digital display (Five – digit, seven segment / green, orange and red backlight) *No backlight by standard setting
Trouble Alarm / Self-Diagnosis	System abnormalities / sensor connection abnormalities
Trouble Alarm Display	Backlight LED flashes orange, buzzer *No backlight and no buzzer by standard setting
Trouble Alarm Pattern	Auto-reset
Relay Contact Rating	125 VAC – 1A or 30 VDC – 1 A (resistance load) 0 VAC ±10% (50/60 Hz) or, 24 VDC ±10%
Approval	CE marking standard
Output Signal	4~20 mA DC (no-insulation/load resistance under 300 Ω)
Power Sources	110 VAC ±10% (50/60 Hz) or 24 VDC ±10%
Power Consumption	AC specification: Max. 6VA DC specification: Max. 4W
Operating Temperature	32 ~ 104°F (0 ~ 40ºC) (At a constant conditions)
Operating Humidity	Below 90% RH (Non-condensing)
Mounting Equipment	Wall mounting type (by using accessory mounting plate or mount at one switch box) Cable inlet: Up, down and left/right, or rear side
Dimension	Body: approx. 3.15”(W) x 4.72”(H) x 1.2”(D) (80(W) x 120(H) x 35.5(D)mm)
Weight	AC specification: approx. 7.05 oz (200g), DC specification: approx. 6.34 oz (180g)
Warranty	One year materials and workmanship

RI-600 CO2 Gas Monitor

Stand Alone Carbon Dioxide Monitor

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