Operating Instructions CorroScout
®
500
3.
Handling and initial operation
3.1
Installing and changing the battery
For proper operation, CorroScout
®
500 must be equipped with a 9 V
block battery (type NEDA 1604 9 V or 6F22 9 V). A change of battery
must be carried out when the display segments are no longer visible.
Used batteries must be disposed of in an environmentally compatible
way.
3.2
Connection of the measuring leads.
Use the crocodile clips provided with the measuring leads.
Never exceed the maximum input values printed on the device display.
3.3
Putting-into-operation
Adjusting element: Rotary switch. The rotary switch is used to
switch the device on and off (position "OFF"). The position of the
measuring function switch must not be changed during measurements.
3.4
Measuring functions and measuring ranges
The various measuring functions and ranges can be selected by tur-
ning the switch in a clockwise direction, beginning with "OFF" (see
fold-out page):
Mains:
alternating voltage measurements to test the mains voltage
(230 V, 115 V) when using the CORREX
®
impressed current anodes.
Resistance measurements:
at control sensors of boilers and sto-
rage tanks in the range up to 20 k
.
Insulation
resistance measurements for testing a possible built-in
potential balance resistor (value usually approximately 600
) for
insulation of non-enamelled built-in devices (for instance electric
tubular heaters, bundle tube heaters of non-corroding steel, tube-fin
heat exchangers of copper) against tank mass.
Diode:
Diode test.
Protective current:
direct voltage measurements in the measu-
ring range 20 mA and 200 mA for measuring protective current
output of Mg sacrificial anodes or of CORREX
®
impressed current
anodes.
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