The Riken Keiki OX-600 is an indoor stand-alone Industrial Oxygen (O2) Depletion and Enrichment monitor. The OX-600 is a low cost solution for use where Oxygen (O2) monitoring is required. Many facilities such as Laboratories and Hospitals store and use quantities of Inert Gas or Oxygen. Inert Gases like Nitrogen and Argon can rapidly displace Oxygen (O2) and can kill by asphyxiation as a result. Increased levels of Oxygen (O2), even by a few percent, can present a fire risk. Industrial Oxygen (O2) Depletion Detectors are very important in these applications. OX-600 is suitable for Oxygen (O2) Depletion as well as Oxygen (O2) Enrichment
Allows connection to Remote control panel, PLC or BMS
Very easy to install
Easy connection to external accessories such as remote sounder beacons , data loggers and diallers
Displays real time actual Oxygen levels as desired by HSE inspectors
Easy to see alarm status
Flexibility for any application.
eliminates false alarms due to pressure changes
Allows monitor to be outside the room with sensor inside to ascertain state of room before entry
The OX-600 displays Oxygen (O2) levels on an LCD screen that changes colour at each alarm level. This is a unique feature of the Riken Keiki 600 series.
The Unit comes with preset alarms set to Low and Low Low . Users can program their own alarm levels if desired. Users can access relay outputs for 1st and 2nd alarms in addition to a 4-20mA output. These features allow customers to connected optional external accessories such as additional sounders and beacons.
The Instrument comes ready to operate with a 24 VDC Power supply as well as a Battery Powered option. An optional 240VAC Main adapter is available.
The OX-600 has a low-cost galvanic Oxygen(O2) sensor, in addition customers can replace the sensor in the field without the need for special tools.
The sensor has a pressure compensation feature to avoid false alarms.
As an option the OX-600 has an extender cable that allows the unit to be mounted outside the room with the sensor inside. Staff have the ability to ascertain the state of the room prior to entry as a result.
Typical OX-600 Applications are Laboratories , Hospitals , Gas Storage rooms , Clean rooms in addition to Cryogenics storage facilities and Warehouses
|Detection Principle||Galvanic cell|
|Gas Detected||Oxygen (O2)|
|Detection Range||0 ~ 25 vol%|
|Display Resolution||0.1 vol%|
|Sampling Method||Diffusion or remote sampling method with optional extender cable|
|Indication Accuracy*||Within ±0.7 vol%|
|Response Time*||90% Response within 30 seconds|
|Alarm Delay Time*||Within 5 seconds, after detecting 10 ~ 11 vol% gas at Oxygen deficiency alarm (18 vol% alarm).|
|Alarm Accuracy*||Within ±1 vol% of preset alarms|
|Alarm Levels||Two preset alarms (L-LL), alarm 1 = 19.0% vol, alarm 2 = 18.0% vol (other settings available)|
|Display of Alarm||1st gas alarm: gas concentration reading blinks or orange light, flashing AL1 light or orange light, buzzer
2nd gas alarm: gas concentration reading blinks or red light, flashing AL2 light or red light, buzzer
|Alarm Method||Latching or Non-latching|
|Alarm Contact||Dry contact, Form A or Form B, Form A standard Factory Setting, normally open (closed in ALARM)|
|Display||Digital LCD (3 digits, 7 segments / Green, Orange, Red) (For Alkaline battery version, the back light will be OFF during normal operation)|
|Trouble Alarm / Self-Diagnosis||System trouble / sensor connection trouble|
|Display of Trouble Alarm||Buzzer / content indication (flashing of red error message)|
|Trouble Alarm Method||Non-latching or Latching|
|Contact Capacity||125VAC, 1A or 30VDC, 1A (Resistive load)|
|Output Signal||4 ~ 20mA (Non-isolated, Resistive load under 300O) or 0DC-1V (Non-isolated) *only for 0DC-1V Alkaline battery specification|
|Remote Extender Cable||Extender cable with remote sensor head (3m, 5m, 10m or 20m lengths available)
(cable used: EM-MEES (o.5sq), 2-core)
|Power Sources||24VDC±10%, or AA alkaline battery (2 each)|
|Power Consumption||24VDC specification: MAX 3W|
|Continuous Operation (for Alkaline Battery version)||1 year (no alarm, no indication)|
|Initial Clear||About 25 seconds|
|Operating Temperature||-10°C ~ 40°C (no sudden change)|
|Operating Humidity||Below 90%RH (non-condensing)|
|Mounting Equipment||Wall mounting, sensor integrate type or remote type|
|Dimension||Body: approx. 80mm(W) x 120mm(H) x 35.5mm(D) / 3.15”(W) x 4.72”(H) x 1.2”(D)
Remote sensor (exclude the protrusion): approx. 40mm(W) x 96mm(H) x 35.5mm(D) / 1.57”(W) x 3.78”(H) x 1.2”(D)
|Weight||24VDC specification: approx. 180g (6.34 oz), Alkaline battery specification: approx. 230g (8.11 oz) Remote sensor: approx. 55g (1.94 oz) (excluding cable)|
|*Under normal conditions|
|O2||Symptoms of O2 Deficiency|
|23.5%||OSHA limit for increased levels of oxygen|
|20.9%||Oxygen content in normal air|
|19.5% – 12%||Increased pulse and respiration|
|12% – 10%||Disturbed respiration, fatigue, faulty judgment|
|10% – 6%||Nausea, vomiting, inability to move, loss of consciousness and death|
|6% – 0%||Convulsions, cardiac arrest and death|