Ht-instruments GEO416 Manual de usuario descargar pdf (Pagina 16)

GEO416 - GEO416GS

EN - 15

4.5.1. Anomalous measuring applications

1. When starting a measurement the

instrument checks the continuity of

measuring cables. If the volt circuit

(red cable S and green cable ES) is

interrupted or its resistance value is

too high, the instrument displays a

screen similar to the one beside. Check

that terminals are properly connected

and that the earth rod is connected to

Volt circuit’s resistance too

Value of input interfering

voltage

Example for 3W mode

terminal S and not driven into a pebbly or scarcely conductive ground. In this latter

case pour water around the rod to decrease its resistance value (§ 11.2).

RP>top is displayed when:

 The S rod’s resistance RS > 50KΩ is summed up to the volt circuit

 The resistance of rod S exceeds the value 1200 + 100 RX [Ω] (where RX is the

earth resistance value)

2. When starting a measurement the

instrument checks the continuity of

measuring cables. If the ampere

circuit (blue cable H and black cable

E) is interrupted or its resistance

value is too high, the instrument

displays a screen similar to the one

beside. Check that terminals are

properly connected and that the earth

rod is connected to

Ampere circuit’s resistance

too hi

Value of input interfering

voltage

Example for 3W mode

terminal H and not driven into a pebbly or scarcely conductive ground. In this latter

case pour water around the rod to decrease its resistance value (§ 11.2).

RC>top is displayed when:

 The H rod’s resistance RH > 50KΩ is summed up to the ampere circuit

 The resistance of rod H exceeds the value 1200 + 100 R

X [Ω] (where RX is the

earth resistance value)

3. When starting a measurement the

instrument checks the continuity of

measuring cables. If the volt circuit

(red cable S and green cable ES) and

the ampere circuit (blue cable H and

black cable E) are both interrupted or

their resistance values are too high,

the instrument displays a screen similar

to the one beside. Check that the

Both volt and ampere

circuits’ resistance too hi

Value of input interfering

voltage

Example for 3W mode

terminals are properly connected and that the earth rods connected to terminals S

and H are not driven into a pebbly or scarcely conductive ground. In this latter case

pour water around the rods to decrease their resistance value (§ 11.2).

RP, RC>top is displayed when:

 The S rod’s resistance RS > 50KΩ is summed up to the volt circuit and the H

rod’s resistance H R

H > 50KΩ is summed up to the ampere circuit

 Both the S rod’s resistance and the H rod’s resistance exceed the value 1200 +

100 RX [Ω] (where RX is the earth resistance value)

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Ht-instruments GEO416 Manual de usuario Pagina 16

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