Indoor Oxygen Diffusion Gas Monitor
RKI’s Model OX-500 is an indoor monitor that detects Oxygen (O2) levels with a range of 0-25% (0.1 vol% digit). It’s a sleek low profile design which lends itself to laboratory or commercial applications. The OX-500 comes ready to operate with a simple wall mount bracket and 10 foot power cord. If Oxygen level drops, the user is notified by an audible alarm tone and multicolored LED display.
The OX-500 uses a fast responding low-cost plug-in style galvanic cell sensor. This long life sensor is field-replaceable with no special tools required. An optional remote sensor is available in lengths of 3m, 5m, 10m, and 20m.
Features
- Compact, wall mounting design
- Highly visible 3 color LED digital display
- Remote cable can enter from any direction
- Stores alarm summary data
(10 alarm occurrence, time and alarm concentration)
Applications
- Prevent oxygen deficient accidents
- Control oxygen levels
- Laboratories
- Warehouses
- Tunnels
- Clean room
- Basements
Specifications
Model |
OX-500 |
Measuring Gas |
Oxygen (O2) |
Sampling Method |
Diffusion |
| Physical | |
| Dimensions | 95(W) x 135(H) x 35(D)mm |
Weight |
Approx. 420g (Approx. 220g in case of DC 24V version) |
Display |
3 digits, 3 color LED (Green, Orange, Red) Normal: Green |
Mounting |
Wall mounting type (by using accessory mounting plate or mount at one switch box) Cable inlet: Up, down and left/right, or rear side |
| Environmental | |
| Operating Temp | 0-40ºC (0 to 104ºF) |
| Relative Humidity |
below 95% RH (non-condensing) |
| Sensors | |
| Sensor Types | Galvanic Cell |
| Measuring Ranges |
0 ~ 25.0 vol% (0.1 vol% digit) |
| Outputs | |
| Type of Alarms | Gas alarm: 2 decrease alarms, latching mode (Non-latching with reset switch) Trouble alarm: Self reset |
| Preset Alarm Levels | 1st: 19.0 vol%, 2nd: 18.0 vol% |
| Relays | Normally-open contact for both AL1/AL2, rated 125VAC to 1A (Resistive load) |
| Visual | 1st Alarm: Flashing orange LED with gas display AL1 LED orange color flashing, intermitted buzzer sound 2nd Alarm: Flashing red LED gas display AL2 LED red color flashing, intermittent buzzer sound Trouble Alarm: Red flashing display “E-**” (**shows error number), short intermittent buzzer sound |
| Power | AC 100V 50/60Hz, Power consumption: Max 3.5VA, Power cable: 3m accessory (standard) Option: (DC 24V, Power consumption: MAX 2.0) |
| Warranty | One year materials and workmanship. |
Oxygen deficiency and its reaction to human beings
O2 vol% |
Symptoms |
|---|---|
21% |
Normal oxygen in air. |
18% |
Safety limit, needs ventilation. |
12-16% |
Strained breathing, high pulse, decrease of mental concentration, headache, ears ring, nausea. |
9-14% |
Fading consciousness, headache, nausea, pale complexion (cyanosis), slow reaction. |
6-10% |
Loses consciousness, cramps of the whole body |
Below 6% |
No consciousness, lethargy, stop breathing, heart rate stops, death within 6 minutes. |
* Specifications subject to change without notice.