Surface Resistance Tester Electro Static Electricity Meter 385

SURFACE RESISTANCE CHECKER The instrument test both surface resistivity and resistance to ground.Giving simple repeatable measurements of conductive,static dissipative and Insulative surface.The checker emloys the ASTM standard D-257 method of parallel bar sensing.Ranging is automatic due to the use of high speed OP-AMP Integrated circuits being linear,with change over points + or – 1/2 dcade on a logarithmic scale (lor-10% from mean value per unit). Operation Remove the battery compartment and panel and check that a good quality PP3 Alkaline battery has been fitted.Hold the checker away from any surface and press the test button;the Insulative red LED light. Place the checker onto the surface that requires testing,again press the test button and hold.The LED that illuminates constantly is the decade measured. 10/3 =1kilohm Green LED 10/4 =10kilohms Green LED 10/5 =100kilohms Green LED 10/6 =1megohm Yellow LED 10/7 =10megohms Yellow LED 10/8 =100megohms Yellow LED 10/9 =1,000megohms Yellow LED 10/10 =10,000megohms Yellow LED 10/11 =100,000megohms YellowLED 10/12 =1,000,000megohms Red LED >10/12 =Insulative RedLED