Gossen MetraWatt SECUTEST PRO Manual

GMC-I Messtechnik GmbH 23
8.5 Measuring Protective Conductor Resistance – RPE
1
SECUTEST BASE10/PRO (feature G01): 10 A-RPE measurements are only
possible with line voltages of 115/230 V and line frequencies of 50/
60 Hz.
2
Connection for 2
nd
test probe for 2-pole measurement with SECUTEST
PRO only (or instrument with feature H01)
3
Can only be selected if the IP(set) parameter has been set to 10 A~,
with SECUTEST PRO only (or instrument with feature G01)
4)
Can only be selected with SECUTEST BASE or if the IP(set) parameter has
been set to 200 mA.
Application, Definition, Measuring Method
Protective conductor resistance is the sum of the following resis-
tances:
• Connector cable or device connector cable resistance
• Contact resistance at plug and terminal connections
• Resistance of the extension cord if applicable
Protection Class I Devices
– Measurement type PE(TS) - P1 (passive)
– DUT mains plug to test socket
– Test probe P1 to P1 terminals
Schematic Diagram
Protective conductor resistance is measured between the earth-
ing contacts at the mains plug and the earthing contact con-
nected to the housing by contacting the housing with test probe
P1.
Wiring Diagram
Measurement of RPE at Single-Phase Extension Cords with EL1
– Measurement type PE(TS) - P1 (passive)
– Extension cord plug connected to test socket
– EL1 to P1 terminals
Schematic Diagram
Wiring Diagram
Protection Class I Devices
Special Case: Line Voltage at Test Socket (for testing PRCDs)
– Measurement type PE(TS) - P1 (active)
– DUT mains plug to test socket
– Test probe P1 to P1 terminals
Schematic Diagram
Protective conductor resistance is measured between the earth-
ing contacts at the mains plug and the earthing contact con-
nected to the housing by contacting the housing with test probe
P1.
Single measurements, rotary switch level: green
Switch Position
Measure-
ment Type,
With Mains
to Test
Socket
Measure-
ment Type,
Without
Mains
to Test
Socket
Measuring Functions
R
PE
Passive:
PE(TS) - P1
R
PE
Protective conductor resistance
Ip Test current: 200 mA
Ip Test current:
10 A
1
Active:
PE(TS) - P1
4
PE(mains) - P1
PE(mains) - P1
clamp
3
P1 - P2
2
R
PE

Gossen MetraWatt SECUTEST PRO Specifications

General

Brand	Gossen MetraWatt
Model	SECUTEST PRO
Category	Measuring Instruments
Language	English