... & Reliable! Light & Small. Could be easily installed on equipments. KLD-Z is an on-line oil particle counter of high precision. It adopts the principle of ... hydraulic oil, lubricant oil, gearbox oil, insulating oil (transformer oil), etc. Due to its small size and light weight, it can be easily installed on equipments ... 1638 00-21;ISO4406 01-29;GJB 420A 000-12 On-Line Oil Particle Counter