Gossen MetraWatt SECUTEST PRO Manual

24 GMC-I Messtechnik GmbH
Wiring Diagram
Protection Class I Devices
Special case: permanently installed DUTs
– Measurement type PE(mains) - P1
– Test probe P1 to P1 terminals
Schematic Diagram
In the case of permanently installed DUTs, protective conductor resis-
tance is measured between the mains power earthing contact
and the earthing contact connected to the housing by contacting
the housing with test probe P1.
Wiring Diagram
Measurement via current clamp sensor
at permanently installed DUT
– Measurement type PE(mains) - P1 clamp
– Test probe P1 to P1 terminals
– Clamp to COM-V (only withSECUTEST PRO or feautureI01 with
optional WZ12C current clamp sensor)
Schematic Diagram
Measurement of test current by closing the current clamp sensor
around mains PE and contacting the housing with test probe P1
for permanently installed protection class I devices under test
Wiring Diagram
Set Measuring Range at WZ12C and at the SECUTEST PRO
This measurement type can only be selected if test current is set
to 10 A AC.
2-Pole Measurement at Permanently Installed DUTs
(only with SECUTEST PRO or feature H01)
– Measurement type P1 - P2
– Test probe P1 to P1 terminals
– Test probe P2 to P2 terminals
Schematic Diagram
PE at the mains connection is contacted with the second test
probe instead of via the test instrument’s mains plug.
Wiring Diagram
Resistance is measured:
• Between each exposed conductive part of the housing and the
earthing contacts at the mains and the device plug (if a
removable mains connector cable is used), or the protective
conductor terminal for permanently installed devices.
• As 4-pole measurement
• Between the earthing contacts at the mains plug and the
earthing contacts at the device plug for device connector cables
• Between the earthing contacts at the mains plug and the
earthing contacts at the coupling socket for extension cords
SECUTEST PRO WZ12C clamp meter SECUTEST PRO
Transforma-
tion
Ratio
Parameter
Switch Measuring
Range
Display Range
with Clamp
1:1
1 V / A
1 mV / mA
1 mA ... 15
A
0 ... 300 A

Gossen MetraWatt SECUTEST PRO Specifications

General

Brand	Gossen MetraWatt
Model	SECUTEST PRO
Category	Measuring Instruments
Language	English