Surface Resistivity Meter
385
This compact meter measures both Surface Resistivity and Resistance to Ground with a Test Range From 10^3 ohms per square to 10^12 ohms per square, with accuracy + or – 1/2 Decade.
The 385 gives simple repeatable measurements of Conductive, Static Dissipative and Insulative surfaces by utilizing the ASTM standard D-257 method of parallel bar sensing.
Easy to Operate
To measure surface resistivity, place the meter onto the surface that requires testing, press the red test button and hold. The LED that illuminates constantly is the decade measured.
10^3 = 1 kilohm
|
Green LED
|
10^4 = 10 kilohms
|
Green LED
|
10^5 = 100 kilohms
|
Green LED
|
10^6 = 1 meg ohm
|
Yellow LED
|
10^7 = 10 meg ohms
|
Yellow LED
|
10^8 = 100 meg ohms
|
Yellow LED
|
10^9 = 1000 meg ohms
|
Yellow LED
|
10^10 = 10,000 meg ohms
|
Yellow LED
|
10^11 = 100,000 meg ohms
|
Yellow LED
|
10^12 = 1,000,000 meg ohms
|
Red LED
|
> 10^12 = Insulative
|
Red LED
|
Checking Resistance to ground
Insert the ground cord into the ground socket. This isolates the test probe on the right side of the meter (the same side as the socket), connect the alligator clip to your ground connection.
Place the meter onto the surface to be tested, press and hold the test button. The LED that remains illuminated is the decade measured. The measurement will be resistance to ground in ohms instead of ohms per square.
Specification
Power Supply
|
9 volt PP3 alkaline battery
|
Test Voltage
|
Nominal 9 volts
|
Relativumidity
|
0% to 90% (non-condensing)
|
Repeatability
|
+/-5%
|
Accuracy
|
+/-10%
|
Weight
|
170g
|
Size
|
130 x 70 x 25mm
|
|
Home
