Chroma 19032 - Memory Management; Read Memory; Store Memory

Electrical Safety Analyzer 19032 User’s Manual
4-10
√(Resistance load value)
2
+ (Offset)
2
. Therefore, when measured out resistive load
current value, current reading =
√(Real measurement value )
2
– (Offset)
2
. When tests
a capacitive load, current reading = (real measurement value) – (Offset).
3. LC OFFSET: Before testing dynamic leakage current mode, connects test cable first.
After the fixture is tested, then processes OFFSET for ensure test value accuracy
especially when measures small current. The leakage current of general test fixture,
isolation transformer and the instrument are mostly caused by capacitance feature.
According to mathematics, when test a resistive load, its’ current value =
√(Resistance load value)
2
+ (Offset)
2
. Therefore, when measured out resistive load
current value, current reading =
√(Real measurement value )
2
– (Offset)
2
. When tests
a capacitive load, current reading = (real measurement value) – (Offset).
4. GB OFFSET: use the standard 4-wires test cable to process standard resistance test,
doesn’t need additional OFFSET operation. If using with our grounding accessories, the
maximum test error is possible increased to 2mohm. Before Offset test is done, be sure
offset resistance. When Offset resistance value is lower than 5mohm, do Offset is not
recommended. Incorrect Offset may influence error of real test value.
5. OSC OFFSET: There is stray capacitance on wire or fixture, does OFFSET elimination
again on changing wire or fixture every time for ensure the accuracy of testing.
4.5 Memory Management
When the title displays “MAIN MENU”, press the [MEMORY] Function Key. The title will
display “MEMORY SETUP”. The memory can be read, stored or deleted. Each memory
location includes the test parameter, test preset parameter, and memory name.
4.5.1 Read Memory
1. When the title displays “MEMORY SETUP”, press the [], [] keys or the [NEXT PAGE]
Function Key to move the highlighted cursor to the memory name to be recalled.
2. Press the [RECALL] Function Key. The confirm window then displays
3. Press the [ENTER] key to confirm or press the [EXIT] Function Key to cancel.
4.5.2 Store Memory
1. When the title displays “MEMORY SETUP”, press the [], [] keys or the [NEXT PAGE]
Function Key to move the highlighted cursor to the memory number position to be stored.
2. Press the [STORE] Function Key. The highlighted cursor becomes a blinking
underscored cursor. Input the memory name by using the numeric/character keys.
Pressing the same numeric/character keys repeatedly switches the display between
numeric and alphabetic. Use the [NEXT CHAR] Function Key to move the blinking
underscored cursor to the next character.
3. Press the [ENTER] key to confirm or press the [EXIT] Function Key to cancel.