... in waste water, used in the circustances of explosion proof. OCD1A Explosion-proof oil content meter is an online testing instrument for ... waste water.It's used in the circustances of explosion-proof,such as sites concerning petrochemical waste water continually, ... ,50/60HzPower25WSignal output4~20Ma or 0~5VDCWater-proof protectionIP45Mounting dimension420×210mmBoundary dimension460×300×184mmWeight28KG