Gossen MetraWatt ECUTEST ST BASE Operating instructions

Important
Read carefully before use.
Keep on file for future reference!
Read the full operating instructions which are available
in PDF format at www.gossenmetrawatt.com.
The condensed operating instructions do not replace
the full operating instructions!
Download Center
Condensed Operating Instructions
SECUTEST ST BASE(10)/PRO
and SECULIFE ST BASE(25)
Test Instruments for Checking the Electrical Safety of Devices 3-447-066-03
3/3.22

SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
2Gossen Metrawatt GmbH
Table of Contents Page Page
1 Safety Instructions ....................................3
2 Applications ..............................................5
2.1 Intended Use / Use for Intended Purpose ......5
2.2 Use for Other than Intended Purpose ............7
2.3 Liability and Guarantee ................................7
2.4 Opening the Instrument / Repairs .................7
3 Documentation .........................................8
4 Getting Started .........................................8
5 Test Instrument ........................................9
5.1 Scope of Delivery ........................................9
5.2 Features .....................................................9
5.3 Symbols on the Test Instrument ...................9
5.4 Operating and Connection Overview ...........10
5.5
Overview of the Test Instruments’ Scope of
Functions .................................................... 11
6 Characteristic Values ..............................13
6.1 Relevant Standards ...................................14
7 Initial Startup ..........................................15
7.1 Connecting the Test Instrument to the
Mains .......................................................15
7.2 Automatic Recognition of Mains Connection
Errors .......................................................15
7.3 Connecting Test Probe P1 or P2 ................16
7.4 International Use .......................................16
8 Operation ................................................17
8.1 Basic Test Instrument Operation ................17
8.2 Entering Text and Numbers .......................17
8.3 User Interface Icons – Parameter and
Softkey Icons ............................................18
9 Test Instrument Settings ........................19
9.1 System Parameters ...................................19
9.2 Test Standards /
Configuration of Integrated Test Sequences 19
10 Inspector Management ...........................22
11 Internal Database ...................................22
11.1 Creating Test Structures ............................22
12 Important Basic Information on Tests
and Measurements .................................23
12.1 Important Safety Information ......................23
12.2 Measurement with DUT Connected to
Line Voltage .............................................23
12.3 Measurement of insulation resistance and
equivalent leakage current (alternative
leakage current measuring method) .......... 24
12.4 Measuring Parameters for Single
Measurements and Test Sequences .......... 24
13 Single Measurements ............................ 25
13.1 General ................................................... 25
13.2 Measurement Procedure and Storage ........ 25
13.3 RPE – Protective Conductor Resistance for
Protection Category I DUTs ....................... 27
13.4
RINS – Insulation Resistance Measurement for
Protection Category I DUTs ............................28
13.5 RINS – Insulation Resistance Measurement
for Protection Category II DUTs .................. 29
13.6 IPE – Protective Conductor Current ........... 30
13.7 IT – Touch Current ................................... 31
13.8 IE – Device Leakage Current ..................... 32
13.9 IA – Leakage Current from the Applied Part 33
13.10 IP – Patient Leakage Current .................... 34
13.11 U – Probe Voltage .................................... 35
13.12 U – Measuring Voltage ............................. 36
13.13 tPRCD – Measuring Time to Trip for PRCDs 37
13.14 P – Functions Test ................................... 38
13.15 EL1 – Function Test for Extension Cords .... 39
13.16 EXTRA – Special Functions ....................... 40
13.17 2-Pole Measurement with Test Probes P1
and P2 .................................................... 41
13.18
Measurement with Current Clamp Sensor for
Permanently Installed PC I DUTs ........................42
13.19 Measurements with Test Adapter ............. 43
14 Test Sequences
(automatic test sequences) ................... 44
14.1 Measuring Procedure and Storage ............ 45
14.2 Example of an Integrated Test Sequence ... 47
15 Reports .................................................. 51
16 Test Data Management –
IZYTRONIQ Software .............................. 51
17 Contact, Support and Service ................ 52
18 Returns and Environmentally Sound
Disposal ................................................. 53
19 CE Declaration ....................................... 54

Gossen Metrawatt GmbH 3
SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
1 Safety Instructions
Observe this documentation, in particular all
included safety information, in order to pro-
tect yourself and others from injury, and to
prevent damage to the test instrument.
• Carefully and completely read and
adhere to these condensed operating
instructions, as well as the test instru-
ment’s operating instructions.
The respective documents can be found
at http://www.gossenmetrawatt.com.
Retain these documents for future refer-
ence.
• Tests/measurements may only be per-
formed by a qualified electrician, or
under the supervision and direction of a
qualified electrician. The user must be
instructed by a qualified electrician con-
cerning performance and evaluation of
the tests/measurements.
• Observe and comply with all safety regu-
lations which are applicable for your
work environment.
• Wear suitable and appropriate personal
protective equipment (PPE) whenever
working with the test instrument.
Be aware that PPE may be required for
the device under test and wear it if nec-
essary.
• The functioning of active medical devices
(e.g. pacemakers, defibrillators) and pas-
sive medical devices may be affected by
voltages, currents and electromagnetic
fields generated by the test instrument
and the health of their users may be
impaired. Implement corresponding pro-
tective measures in consultation with the
manufacturer of the medical device and
your physician. If any potential risk can-
not be ruled out, do not use the test
instrument.
• Use only the specified accessories
(included in the scope of delivery or listed
as options) with the test instrument.
• Carefully and completely read and
adhere to the product documentation for
optional accessories. Retain these docu-
ments for future reference.
• Use the test instrument in undamaged
condition only.
Inspect the test Instrument before use.
Pay particular attention to damage, inter-
rupted insulation or kinked cables.
Damaged components must be
replaced immediately.
• Accessories and cables may only be
used as long as they’re fully intact.
Inspect accessories and all cables
before use. Pay particular attention to
damage, interrupted insulation or kinked
cables.
• If the test instrument or its accessories
don’t function flawlessly, permanently
remove the instrument/accessories from
operation and secure them against inad-
vertent use.
• If the test instrument or accessories are
damaged during use, for example if
they’re dropped, permanently remove
the instrument/accessories from opera-
tion and secure them against inadvertent
use.
• Do not use the test instrument and its
accessories after long periods of storage
under unfavorable conditions (e.g.
humidity, dust or temperature).
• Do not use the test instrument and its
accessories after extraordinary stressing
due to transport.
•Onlyusethetestinstrument and its
accessories within the limits of the speci-
fied technical data and conditions (ambi-
ent conditions, IP protection code, mea-
suring category etc.).
• The test instrument and the accessories
may only be used for the tests/measure-
ments described in the documentation
for the test instrument.
• The test instrument may only be con-
nected to TN, TT or IT electrical systems
with a maximum of 240V(nominalvolt-
age) which comply with applicable safety
regulations (e.g. IEC 60346, VDE 0100)
and are protected with a fuse or circuit
breaker with a maximum rating of 16 A.

SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
4Gossen Metrawatt GmbH
• The test instrument is equipped with
fuses. The test instrument may only be
used as long as the fuses are in flawless
condition. Defective fuses must be
replaced.
• Do not perform any measurements in
electrical systems with the test Instru-
ment. It has been neither designed nor
approved for this purpose.
• Plugging in the measurement cables
must not necessitate any undue force.
• Never touch conductive ends (e.g. of
test probes).
• Fully unroll all measurement cables
before starting a test/measurement.
Never perform a test/measurement with
the measurement cable rolled up.
• Avoid short circuits due to incorrectly
connected measurement cables.
• Conduct a probe check after completing
each test.
• The test instrument must be operated
within the same electrical system as the
test object.
• Unexpected voltages may occur at
devices under test (for example, capaci-
tors can be dangerously charged). Take
appropriate precautions.
• The fuses may only be replaced when
the test instrument is voltage-free, i.e. it
must be disconnected from mains sup-
ply power and may not be connected to
a measuring circuit.
The fuse type must comply with the
specifications in the technical data or the
labeling on the test instrument.
• Test instruments with feature M01: The
test instrument is equipped with a Blue-
tooth®module. Determine whether or
not use of the implemented frequency
band of 2.402 to 2.480 GHz is permissi-
ble in your country.
• Always create a backup copy of your
measurement data.
Please refer to the operating instructions
for further information (see section 3,
“Documentation”).
• Observe and comply with the respec-
tively applicable national data protection
regulations. Use the corresponding func-
tions provided by the test instrument
such as password protection, as well as
other appropriate measures.

Gossen Metrawatt GmbH 5
SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
2Applications
Please read this important information!
2.1 Intended Use / Use for Intended
Purpose
Safety of the operator, as well as that of the
test instrument, is only assured when it’s
used for its intended purpose.
The SECUTEST ST BASE, the SECUTEST
ST BASE10, the SECUTEST ST PRO, SEC-
ULIFE ST BASE and the SECULIFE ST
BASE25 are test instruments for testing the
electrical protective measures of electrical
devices, electrical medical devices and elec-
tric welding equipment.
All test instruments include measuring and
test functions for checking the effectiveness
of the protective measures required in
accordance with the respective test stan-
dards for the particular field of technology.
Single measurements and test sequences
can be executed.
Test sequences (semi-automatic test proce-
dures) can be used in an integrated, i.e. pre-
configured form, or defined individually by
the user.
The integrated test sequences consist of a
preconfigured series of individual tests with
subsequent documentation, as stipulated in
the respective standard. They can thus be
used to repeatedly and efficiently perform
standards-compliant tests. Their progress is
interrupted by safety-related pauses, as well
as associated warnings and instructions. As
a result, the level of protection provided to
the user is greater than demanded by sec-
tions 4.1.6 and 4.1.7 of standard “IEC /
61557-16 / DIN EN 61557-16 / VDE 0413-
16” with regard to “automated test
sequences”.
The integrated test sequences can be used
to comply with the following standards:
• VDE 0701-0702 / ÖVE E 8701 /
SNR 462638
Inspection after repair, modification of
electrical appliances – Periodic inspec-
tion on electrical appliances
• IEC 62353 / EN 62353 / VDE 0751-1
Medical electrical equipment –
Recurrent test and test after repair of
medical electrical equipment
• IEC 60974-4 / EN 60974-4 / VDE 0544-4
Arc welding equipment
Part 4: Periodic inspection and testing
• NEN 3140
Bedrijfsvoering van elektrische installat-
ies - Laagspanning
• EN 50678 / VDE 0701
General procedure for verifying the effec-
tiveness of the protective measures of
electrical equipment after repair
• EN 50699 / VDE 0702
Recurrent Test of Electrical Equipment
• IEC 62368 / EN 62368 / VDE 0868-1
Audio/video, information and communi-
cation technology equipment
• IEC 62911 / EN 62911 / VDE 0868-911
Audio, video and information technology
equipment – Routine electrical safety
testing in production
Attention!
!
The integrated, preconfigured test
sequences do not include all of the
tests prescribed by the product stan-
dard which are required for type test-
ing! They’re restricted to the tests
which are required as a rule after re-
pair or during maintenance work and
for occupational health and safety
measures, as well as for quality as-
surance in production.
Note
Availability of the individual integrated
test sequences depends on the test
instrument type (SECUTEST ST... or
SECULIFE ST... ...), the selected fea-
tures (order features) and the enabled
extensions (activations).
Refer to your order / test instrument
and data sheet for details.

SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
6Gossen Metrawatt GmbH
Associated, database-driven test software is
available, i.e. IZYTRONIQ. This software
facilitates test organization and the manage-
ment of test data from a broad range of test
instruments. It also provides extended func-
tions such as remote control in connection
with the respective test instrument – support
for extended functions depends on the test
instrument and its order features or enabled
extensions (activations). The software itself is
included with test equipment sets, or can be
purchased separately.
The test instrument housing is compact,
impact resistant and includes an integrated
rubber protector for mobile use, e.g. in fac-
tories, on construction sites and in industrial
environments.
The front panels and housings of SECULIFE
ST BASE and SECULIFE ST BASE25 test
instruments are also furnished with antimi-
crobial properties, which make it possible to
use them in hygienically sensitive areas.
Standards Table – by Device and Reason for Testing
Reason for Testing
Device Under Test Repair Periodic Testing (occupa-
tional safety, DGUV)
Testing in Production /
Routine Testing
Electric devices
(as a rule with
mains power cable)
including extension cords and
multiple outlets
EN 50678 / VDE 0701
VDE 0701-0702 /
ÖVE E 8701 /
SNR 462638
NEN 3140
EN 50699 / VDE 0702
VDE 0701-0702 /
ÖVE E 8701 /
SNR 462638
NEN 3140
IT equipment
Not defined
To a given extent:
IEC 62368 / EN 62368 /
VDE 0868-1
IEC 62911 / EN 62911 /
VDE 0868-911
VDE 0701-0702 /
ÖVE E 8701 / SNR 462638
EN 50699 /
VDE 0702
VDE 0701-0702 /
ÖVE E 8701 /
SNR 462638
NEN 3140
IEC 62911 /
EN 62911 /
VDE 0868-911
Medical
electrical devices
IEC 62353 / EN 62353 /
VDE 0751-1
IEC 62353 / EN 62353 /
VDE 0751-1
IEC 62353 / EN 62353 /
VDE 0751-1
To a given extent:
IEC 60601-1 / EN 60601-1 /
VDE 0750-1
Arc welding
equipment
IEC 60974-4 /
EN 60974-4 /
VDE 0544-4
IEC 60974-4 /
EN 60974-4 /
VDE 0544-4

Gossen Metrawatt GmbH 7
SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
Table of Standard Designations for Available Tests
2.2 Use for Other than Intended Purpose
Using the test instrument for any purposes
other than those described in these con-
densed operating instructions, or in the test
instrument’s operating instructions, is con-
trary to use for intended purpose.
2.3 Liability and Guarantee
Gossen Metrawatt GmbH assumes no liabil-
ity for property damage, personal injury or
consequential damage resulting from
improper or incorrect use of the product, in
particular due to failure to observe the prod-
uct documentation. Furthermore, all guaran-
tee claims are rendered null and void in such
cases.
Nor does Gossen Metrawatt GmbH assume
any liability for data loss.
2.4 Opening the Instrument / Repairs
The test instrument may only be opened by
authorized, trained personnel in order to
ensure flawless, safe operation and to
assure that the guarantee isn’t rendered null
and void. Even original replacement parts
may only be installed by authorized, trained
personnel.
Unauthorized modification of the test instru-
ment is prohibited.
If it can be ascertained that the test instru-
ment has been opened by unauthorized per-
sonnel, no guarantee claims can be honored
by the manufacturer with regard to personal
safety, measuring accuracy, compliance
with applicable safety measures or any con-
sequential damages.
If the guarantee seal is damaged or
removed, all guarantee claims are rendered
null and void.
EN 50678 /
VDE 0701
EN 50699 /
VDE 0702
VDE 0701-0702 /
ÖVE E 8701 /
SNR 462638
IEC 60974-4 /
EN 60974-4 /
VDE 0544-4
IEC 62353 /
EN 62353 /
VDE 0751-1
IEC 60601-1 /
EN 60601-1 /
VDE 0750-1
IEC 62368 /
EN 62368 /
VDE 0868-1
IEC 62911 /
EN 62911 /
VDE 0868-911
Single Measurements
Protective conductor resistance 
Insulation resistance 
Protective conductor current 
Earth leakage current 
Primary leakage current 
Device leakage current 
Touch current 
Current from welding circuit 
Patient leakage current 
Leakage current from applied part 
Measuring Method
Alternative (equivalent [device]
leakage current)

Differential current 
Direct 

SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
8Gossen Metrawatt GmbH
3 Documentation
These condensed operating instructions
describe initial steps for using the test instru-
ment. Read the corresponding operating
instructions for full information regarding the
test instrument.
Note
The operating instructions are avail-
able for download on the Internet at
http://www.gossenmetrawatt.com.
Scope of Validity
These condensed operating instructions
describe a test instrument with software/
firmware version FW 3.3.0.
Refer to the operating instructions with
regard to updates.
Terminology
4 Getting Started
➭Read and adhere to the product docu-
mentation. In particular observe all safety
information in the documentation, on the
test instrument and on the packaging.
– See “Safety Instructions” on page 3.
– See “Applications” on page 5.
➭Familiarize yourself with the test instru-
ment.
– See “Test Instrument” on page 9.
– See “Initial Startup” on page 15.
– See “Operation” on page 17.
➭Prepare the test instrument for use.
– See “Test Instrument Settings” on
page 19.
– See “Inspector Management” on
page 22.
– See “Internal Database” on page 22.
➭Perform measurements:
– See “Important Basic Information on
Tests and Measurements” on page 23.
– See “Single Measurements” on
page 25.
– See “Test Sequences (automatic test
sequences)” on page 44.
➭Generate a report if required. See “Re-
ports” on page 51.
➭Transfer measurement data to IZYTRO-
NIQ software if required. See “Test Data
Management – IZYTRONIQ Software” on
page 51.
Test
instrument
SECUTEST ST... or
SECULIFE ST...
Device
under test Electrical device to be tested, medical electrical
device or electric welding
equipment (DUT)
Test object Electronic representation of
a specific test object in the
internal test instrument
database
(unequivocal allocation to a
real DUT by means of an ID)
Test
sequence
Series of semi-automatic
tests or test steps
Integrated test
sequence Test sequence (see above) which is available upon
delivery or after enabling in
the instrument. Cannot be
changed (test parameters
are configurable).
User-defined
test sequence
A test sequence (see above)
which is created individually
by the user

Gossen Metrawatt GmbH 9
SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
5TestInstrument
5.1 Scope of Delivery
The scope of delivery varies depending on
which test instrument variant has been
ordered, and is country-specific. Information
concerning the scope of delivery can be
found in your order and in the data sheet, in
which all order information is listed.
5.2 Features
The test instruments are available with vari-
ous features. These can be selected when
placing an order.
The basic test instruments include the fol-
lowing features:
* For voltage measurement, or for connecting a
current clamp sensor for current measurement
or an AT3 adapter, and for temperature mea-
surement via a Pt100 or Pt1000 temperature
sensor
Key: Included, Optional
5.3 Symbols on the Test Instrument
The symbols on the test instrument have the
following meanings:
Features SECUTEST ST BASE SECUTEST ST BASE10 SECUTEST ST PRO SECUTEST ST PRO BT comfort SECULIFE ST BASE SECULIFE ST BASE25
Touchscreen /
keyboard E01 
10 A RPE
test current G01 
25 A RPE
test current G02 
2nd test probe H01 
Voltage measur-
ing input* I01 
Integrated test se-
quences for
EN 50678 / VDE
0701, EN 50699 /
VDE 0702, IEC
62368 / EN 62368
/ VDE 868-1, IEC
62911 / EN62911/
VDE 868-911
KE 
SECUTEST DB+ KB01 
SECUTEST DB
COMFORT KD01 
Bluetooth®M01 
Antimicrobial
housing —
250 V CAT II
Maximum permissible voltage
and measuring category
between connections P1 (test
probe), the test socket and
ground
Warning regarding dangerous
electrical voltage
Warning concerning a point of
danger
(attention: observe documenta-
tion!)
European conformity marking
The test instrument may not be
disposed of with household
trash (see section 18, “Returns
and Environmentally Sound
Disposal”).
Further information regarding
the WEEE mark can be
accessed on the Internet at
www.gossenmetrawatt.com by
entering the search term
“WEEE”.
If the guarantee seal is damaged
or removed, all guarantee claims
are rendered null and void.
!

SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
10 Gossen Metrawatt GmbH
5.4 Operating and Connection Overview
Note
Features such as touchscreen, Bluetooth®etc. can be found in your order, on the
instrument and in the data sheet.
MEM: database
ESC:back
HELP: help images
START STOP : start/stop
– Single
measurement
– Test sequence
Finger contact
PRINT:print via USB
Function keys
Displayed icons for devices
connected to the USB master
port (see below)
Softkeys
2 USB masters
– For keyboard
– For scanner
– For printer
– For USB stick
1 USB slave
– For PC
Test socket (country-spe-
cific) for connecting DUTs
Caution!
Depending on the measur-
ing task, the test probe may
be charged with line voltage.
!
LCD
Supply power
connection for
SECUTEST CLIP
(Z745H) 2
panel
Display of special icons:
– Measurement at IT system active
– Offset for RPE active Reinforcing sleeve:
black: max. 16 A
green: max. 25 A
Mains to test socket
SFC: Normal status
Mains to test socket
SFC: N interrupted
White/silver highlighted &
fused high-current path
Fuse compartment
(fuse link for probe
input P1)
Voltage mea-
suring inputs1
Orange rotary switch level
Test sequences A1 to A9
(test sequences per standard)
Green rotary switch level
Single measurements
Test probe (P1)
Carrying handle and tilt
stand
1
Only test instruments with feature H01, e.g. SECUTEST ST PRO
2
See also operating instructions for the device.
Connections for 2nd
test probe (P2 for 2-
pole measurement)1
Rotary switch for
function selection
Socket (country-specific)
for mains power via inlet
plug (country-specific)

Gossen Metrawatt GmbH 11
SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
5.5 Overview of the Test Instruments’ Scope
of Functions
Single measurements and test sequences
can be executed with the test instruments.
Single Measurements
Switch Positions in Green Rotary Switch
Level
110/25 A RPE measurements are only possible
with line voltages of 115/230 V and line frequen-
cies of 50/60 Hz.
2Voltage measuring inputs only with test instru-
ments including feature I01 (e.g. SECUTEST ST
PRO and SECULIFE ST BASE(25))
3Measurement of time to trip isn’t possible in IT
systems.
4No testing for reversed wires with EL1 adapter
Switch
setting
descrip-
tion as of
Measuring functions,
test current/voltage
Single measurements, rotary switch level: green
Measurements at voltage-free objects
RPE
Page 27
RPE Protective conductor resistance
IPTest current (200 mA)
Feature G01 (e.g. SECUTEST ST
BASE(10)/PRO and SECULIFE ST
BASE): 10 A 1
and feature G02 (e.g. SECULIFE ST
BASE25): 25 A 1
RINS
Page 28
RINS Insulation resistance
UINS Test voltage
Measurements at DUTs with line voltage
IPE
Page 30
IPE Protective conductor current,
TRMS
IPE~AC component
IPE= DC component
ULPE Test voltage
UGen Reference voltage (alternative)
IT
Page 31
IBTouch current, TRMS
IB~AC component
IB= DC component
ULPE Test voltage
UGen Reference voltage (alternative)
IE
Page 32
IGDevice leakage current, TRMS
IG~AC component
IG= DC component
ULPE Test voltage
UGen Reference voltage (alternative)
IA
Page 33
IA
Leakage current from the applied
part
ULPE Test voltage
UGen Reference voltage (alternative)
IP
Page 34
IP
Patient leakage current, TRMS
IP~AC component
IP= DC component
ULPE Test voltage
U
Page 35
UProbe voltage, TRMS
U~Alternating voltage component
U= Direct voltage component
U Measuring voltage, TRMS 2
U~Alternating voltage component 2
U= Direct voltage component 2
tPRCD 3
Page 37
ta
PRCD time to trip for 10/30 mA PRCD
ULN Line voltage at the test socket
P
Page 38
Function test at the test socket
ICurrent between L and N
UVoltage between L and N
fFrequency
PActive power
SApparent power
PF Power factor
Probe measuring functions
EL1
Page 39
Function test for extension cords
with EL1/VL2E/
AT3-IIIE adapters:
continuity, short circuit & reversed wires 4
EXTRA
Page 40
Reserved for extensions within the framework
of software updates
°C temperature measurement 2with Pt100/
Pt1000
IZ current clamp measurement with current clamp
sensor
Switch
setting
descrip-
tion as of
Measuring functions,
test current/voltage

SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
12 Gossen Metrawatt GmbH
Integrated Test Sequences
The test instrument is equipped with pre-
configured, integrated test sequences which
are selected via the switch positions at the
orange rotary switch level.
Note
Availability of the individual integrated
test sequences depends on the test
instrument type (SECUTEST ST... or
SECULIFE ST...), the selected fea-
tures (order features) and the enabled
extensions (activations).
Refer to your order / test instrument
and data sheet for details.
The integrated test sequences are freely
assignable, i.e. they can be individually
assigned to the rotary switch positions
(because there are more integrated test
sequences than rotary switch positions). But
the test instrument is preconfigured upon
delivery.
Which integrated test sequences are
assigned to the rotary switch positions on
your test instrument upon delivery depends
on several factors: test instrument type
(SECUTEST ST... or SECULIFE ST...),
selected features and enabled extensions.
Due to the great variety of possible combi-
nations, a listing of all delivery statuses
would go beyond the scope of this docu-
mentation.
In order to provide you with an impression,
the delivery status of a standard test instru-
ment is listed below as an example.
SECUTEST ST PRO, German version,
default settings:
Auto = automatic detection
Details concerning test sequences can be
found in the operating instructions (see sec-
tion 3 on page 8).
Integrated Test Sequences
Switch Positions at Orange Rotary Switch Level
Rotary
switch
position
Standard/
test
sequence
Meas.
type Con- nection type Protec-
tion
category
Voltage
spec.
A1 EN 50699 Auto Auto
Auto
A2 EN 50678 Auto Auto Auto
A3 VDE 0701-
0702
Auto Auto Auto
A4 IEC 60974-4 Active Auto Auto U(0) DC
A5 IEC 62353 Passive Auto BF Auto
A6 EN 50699 Passive Test
socket
Auto
A7 EN 50678 Passive Test
socket
Auto
A8 EN 50699-
VLTG
VLTG EL1
adapter
PC I
A9 EN 50699 Active Auto Auto

Gossen Metrawatt GmbH 13
SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
6 Characteristic Values
Attention!
!
Complete characteristic values can
be found in the operating instructions
(see section 3 on page 8).
Reference Ranges
Line voltage 230 V AC 0.2%
Line frequency 50 Hz 2Hz
Waveform Sine (deviation between
effective and rectified
value < 0.5%)
Ambient
temperature +23 C2K
Relative
humidity 40 60%
Load resistors Linear
Nominal Ranges of Use
Nominal line voltage 100 V … 240 V AC
Nominal line
frequency 50 … 400 Hz
Line voltage
waveform Sinusoidal
Temperature 0 … +40 °C
Ambient Conditions
Storage
temperature -20 C +60 C
Relative
humidity Max. 75%, no condensa-
tion allowed
Elevation Max. 2000 m
Place of use Indoors, except within
specified ambient condi-
tions
In order to avoid deviation due to excessive
temperature fluctuation, e.g. after transport
in low outdoor temperatures and subse-
quent operation in a warm indoor environ-
ment, it’s advisable to wait until the test
instrument has acclimatized before starting
any measurements.
If the test instrument is colder than the ambi-
ent air, condensation may occur at high
humidity, i.e. condensate may accumulate
on components. This could result in the
occurrence of parasitic capacitances and
resistances which, in turn, affect the mea-
suring circuit and measuring accuracy.
Power Supply
Supply network TN, TT or IT
Line voltage 90 V 264 V AC
Line frequency 50 Hz 400 Hz
Power
consumption 200 mA test: approx. 32 VA
10 A test: approx. 105 VA
25 A test: approx. 280 VA
Mains to test socket
(e.g. during
function test) Continuous max.
3600 VA, power is con-
ducted through the instru-
ment only,
switching capacity
16 A, ohmic load,
the AT3-IIS32 (Z745X)
adapter (for example) can
be used for current
> 16 A AC
Electrical Safety
Protection
category I per EN 61140
Nominal voltage 230 V
Test voltage 2.3 kV AC 50 Hz or
3.3 kV DC
(mains circuit / test socket
to mains PE terminal,
USB, finger contact, test
probe(s) test socket)
Measuring
category Designed for 300 V CAT II
(but reduced to 250 V
CAT II through the use of
fuses for increased user
safety. The user-friendly
fuses are replaceable and
replacements are easily
obtainable).
Pollution degree 2

SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
14 Gossen Metrawatt GmbH
Safety
shutdown
At DUT differential current of
>10mA,
shutdown time: < 500 ms,
can also be set to > 30 mA,
in the event of probe current
(electronic fuse) during:
– Leakage current measure-
ment: > 30 mA~/< 500 ms*
– Protective conductor resis-
tance measurement:
> 250 mA~/< 1 ms
in case of continuous current
I>16.5A
Fuse
links Mains fuses:
2 ea. FF 500V/16A
Special fuse:
M 250V/250mA
10 A RPE test current
(feature G01) only:
1 ea. FF 500V/16A
Electromagnetic Compatibility
Product standard EN 61326-1
EN 61326-2-2
USB Data Port
Type USB slave for PC connection /
remote control**
Type 2 ea. USB master,
for data entry devices * with HID boot
inter
face,
for USB flash drive for data backup,
for USB flash drive for saving
reports as HTML files, for printers *
* See operating instructions for compatible test in-
struments
** Remote control only with extension: “Remote
Control via PC (IZYTRONIQ)” (included as stan-
dard feature with SECUTEST ST PRO and avail-
able with SECUTEST DB+ (Z853R or feature
KB01).
Bluetooth ®data interface 2.1 + EDR
(test instruments with feature M01 only)
Frequency range Max. 2.5 mW (class II)
Transmission
intensity 2400 … 2483.5 MHz
Mechanical Design
Display 4.3" multi-display
(9.7 × 5.5 cm), backlit,
480 x 272 pixels with 24 bit
color depth (true color)
Dimensions W × H × D:
295 ×145 × 150 mm
Height with handle: 170 mm
Weight SECUTEST ST BASE(10)/
PRO: approx. 2.5 kg
SECULIFE ST BASE25:
Approx. 4.0 kg
(depending on the test instru-
ment version)
Protection Housing: IP 40,
Test socket: IP 20
per EN 60529
Database
Number of
data records 50,000
1 data record = 1 DUT or
location node or cus-
tomer or individual mea-
surement
6.1 Relevant Standards
The test instrument has been manufactured
and tested in accordance with the following
safety regulations:
*Firmware version 3.2.0 and lower: 12 mA
EN 61010-1 Safety requirements for electrical equipment
for measurement, control and laboratory use
– Part 1: General requirements
EN 60529 Test instruments and test procedures
Degrees of protection provided by enclo-
sures (IP code)
EN 61326-1 Electrical equipment for measurement, con-
trol and laboratory use – EMC requirements
– Part 1: General requirements
EN 61326-2 Electrical equipment for measurement, con-
trol and laboratory use – EMC requirements
– Part 2-2: Particular requirements – Test
configurations, operational conditions and
performance criteria for sensitive test and
measurement equipment for EMC unpro-
tected applications
EN 61557-16 Electrical safety in low voltage distribution
systems up to 1000 V AC and 1500 V DC –
Equipment for testing, measuring or moni-
toring of protective measures –
Part 16: Devices for testing the effectiveness
of protective measures of electrical devices
and/or electrical medical devices

Gossen Metrawatt GmbH 15
SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
7 Initial Startup
Initial startup of the test instrument is con-
ducted by connecting it to the power supply.
The following sections describe operation,
as well as how to select various basic set-
tings.
7.1 Connecting the Test Instrument to the
Mains
➭See section 6 for nominal mains values
(nominal ranges of use).
➭Connect the mains cable to the test in-
strument via its inlet plug and insert the
mains plug into an electrical outlet. Any
rotary switch position can be selected.
If a mains outlet (earthing contact outlet)
isn’t available, or if only a 3-phase outlet
is available, the adapter socket can be
used to connect the phase conductor,
the neutral conductor and the protective
conductor. The adapter socket has three
permanently attached cables and is in-
cluded with the KS13 cable set.
Attention!
!
If connection isn’t possible via an
earthing contact outlet: Shut down
mains power first.
Then connect the cables from the
coupling socket to the mains using
pick-off clips in accordance with the
diagram.
Disconnection from mains power is
only possible via the mains plug.
Measurements in IT Systems
The IT System setting can be activated in the
SETUP switch position (Setup 1/3) in the All
Measurements submenu:
With “Measurement at IT system” set to Yes:
active leakage current measurements (or all
measurements with reference to PE at the
mains connection side) are disabled. Test
sequences which include measurements of
this sort are also disabled.
7.2 Automatic Recognition of Mains Con-
nection Errors
The device automatically recognizes mains
connection errors if the conditions in the fol-
lowing table have been fulfilled. The user is
informed of the type of error, and all measur-
ing functions are disabled in the event of
danger.
1
10/25 A R
PE
measurements are only possible with
line voltages of 115/230 V and line frequencies of
50/60 Hz.
2
If the user of the test instrument is too well insulat-
ed, the following error message may appear:
“Interference voltage at mains connection PE”
Attention!
!
In the event of mains connection er-
rors as described in either of the first
two cases in the table above, imme-
diately disconnect the test instrument
from the mains and arrange to have
the error eliminated!
Attention!
!
If, while testing protective conductor
potential, you determine that the
mains protective conductor is conducting
voltage (in accordance with the first
two mentioned cases), no further
measurements may be performed with
the test instrument. If this is the case,
Type of Mains
Connection Error
Message Condition Measure-
ments
Voltage at
protective conduc-
tor PE to finger
contact (START/
STOP key)
Display
Press the
START/STOP
key:
U25 V
key PE:
< 1 M2
All
measure-
ments
disabled
Protective conduc-
tor PE & phase
conductor L
reversed and/or
neutral conductor
N interrupted
Voltage at PE
> 100 V
Not possible
(no supply
power)
Line voltage
< 180 V / < 90 V
(depending on
mains)
UL-N < 180 V
UL-N <90V
Possible un-
der certain
circum-
stances 1
Test for IT/TN
system Display Connection
N PE
> 20 k
Possible
under certain
circumstances

SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
16 Gossen Metrawatt GmbH
potentially dangerous voltage is also
present at the accessible earthing
contacts of the standard socket (test
socket). Immediately disconnect the
test instrument from the mains and
arrange to have the fault eliminated
at the mains connection.
Note
Voltage at the electrical system’s protective
conductor PE
may result in distorted mea-
surement values during testing for the
absence of voltage, or during leakage
voltage measurements.
Note
Finger Contact
During this test for correct mains con-
nection, a voltage measurement is
performed between the finger contact
and PE at the test instrument’s mains
connection, and its reference poten-
tial is acquired via the user’s body
resistance to the conductive start key.
In order to obtain reliable measure-
ment results, this resistance value
must be less than 1 M. If the user is
wearing insulating shoes or gloves, or
is standing on an insulating floor cov-
ering, erroneous measurements may
result and the following message may
appear at the display “Interference
voltage at mains connection PE”. Try
to reduce resistance in this case, for
example by touching ground potential
with the other hand (e.g. a radiator,
but not an insulating wall etc.).
7.3 Connecting Test Probe P1 or P2
Insert the double plug from test probe P1 or
P2 into socket 1 or 2 respectively such that
the plug with the white ring makes contact
with the socket with the vertical bar.
The white ring identifies the terminal for the
high current conductor which is safeguarded
by the neighboring fuse link.
Attention!
!
Test probe with coil cord (SK2W):
Grip the tip of the test probe firmly,
for example if it has been inserted
into a jack socket. Tensioning at the
coil cord may otherwise cause the
test probe to snap back resulting in
possible injury.
Attention!
!
Probe Check
Conduct a probe check after com-
pleting each test.
If the fuse at test probe P1 is defec-
tive after testing has been started, all
subsequent measurements con-
ducted using this measuring path will
be incorrectly evaluated as good!
Note
Difficultly in contacting exposed conduc-
tive parts when using the standard probe
with test tip
In order to assure good contact, sur-
face coatings must be removed from
devices under test with special tools
at a suitable location.
The tip of test probe P1 isn’t suitable for
scratching away paint, because this
may impair its coating and/or mechani-
cal strength. Brush probe Z745G may
be more suitable than the test probe in
certain individual cases.
7.4 International Use
The test instrument can be used internation-
ally. Refer to the operating instructions in this
regard.

Gossen Metrawatt GmbH 17
SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
8Operation
8.1 Basic Test Instrument Operation
The test instrument is operated using the keys and the rotary switch on the test instrument
(see section 5.4 on page 10).
Softkeys
The softkeys are assigned to different functions depending on the operating level (see section
8.3 on page 18).
Function Keys
Fundamentally, these keys have a permanently assigned function:
In some situations, for example when using the softkey keyboard (see below), an alternative
function appears at the display.
8.2 Entering Text and Numbers
A softkey keyboard is displayed for entering text, numbers and characters (e.g. for entering
an offset, a test object ID number, type designations, comments etc.), which is operated by
means of the softkeys. In the case of test instruments with touchscreen (feature E01), entry
is more convenient via the touchscreen keyboard. Alternatively, entries can also be made
with the help of a USB keyboard which is connected to the instrument.
Overview: Entry via Softkey Keyboard
Overview of Entries via the Touchscreen Keyboard (feature E01)
PRINT Print via USB MEM Database START
STOP
Start/stop
– Single measure-
ment
– Test sequence
Finger Contact
ESC Back HELP Help images
Delete characters
PRINT
ESC
HELP
MEM
Toggling: uppercase
Scroll left
Accept entry
lowercase, special
Switch between
Scroll down
Transfer character at cursor
Exit entry function
Scroll right
Display Panel
Keyboard
position to display field
without saving
Scroll up
from right
keys & display panel
characters
➭Briefly pressing the shift key
once causes the next char-
acter to appear in upper-
case.
➭Pressing the shift key for a
longer period of time causes
all following characters to
appear in uppercase.
➭The cursor can be posi-
tioned as desired by press-
ing the display panel at the
respective point in the exist-
ing text.
Display Panel
Keyboard
Delete characters from right *
Accept entry *
* Also via assigned softkey

SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
18 Gossen Metrawatt GmbH
8.3 User Interface Icons – Parameter and Softkey Icons
Icon Setup
Page Parameters and Their Significance
Complete overviews of all icons are included in the full operating instructions.
1/3 All measurements:
Ref. voltage: Voltage to which measured leakage current values are
standardized; residual current protection: value for residual current monitoring (10/30 mA)
1/3 Auto measurements:
Set test sequence parameters: start and end view, consider
measuring uncertainty (yes/no), auto measuring point (yes/no)
1/3 Database: deletion, statistics,
with inserted USB stick : Database: backup, restore
1/3 System: set general device parameters:
date/time, brightness, volume, default settings, self-test
2/3 Printer: printer selection for USB master port
connected, disconnected
2/3 Inspector: select inspector from list, add new inspector
2/3 Culture: select language for user interface, keyboard and measuring sequences
by acknowledging the respective national flag; required!
2/3 Optionally connected external devices
USB stick, keyboard / barcode scanner, printer
3/3 System information: query software and hardware version, serial number, build
number, calibration data and memory occupancy
— Functions and their significance
Set classification parameters for the respective test sequence
(test sequences at switch positions A1 to A9)
Accept parameters, acknowledge message
Cancel single measurement or test sequence
Evaluate measurement of visual inspection with OK or not OK (toggle key)
Continue test, next test step in the test sequence
Left icon: Direct selection key for measuring type (connection type ...) or measuring
method (direct ...) /
Right icon: Selection between two statuses (no submenu)
Start evaluation – record measured value. Each time this softkey is pressed, an
additional measured value is saved and the number is increased by one.
Left icon: Repeat measured value recording
Right icon: Repeat test step
Left icon: Delete measured value
Right icon: Skip individual tests in a test sequence
Display measured values from performed measurements and test sequences
Magnifying glass icon: show (+) or hide (–) details regarding database objects or
selected measurements
Enter a new ID for a test object either before or after a test, and in case the ID
has not yet been entered to the structure
Save measurement data / save measurement data as (with display of directory
path / ID or new entry of an ID other than the preselected one)

Gossen Metrawatt GmbH 19
SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
9 Test Instrument Settings
After initial startup (see
section 7), basic system
parameters must first be
configured. Then you’ll
need to decide which stan-
dard designations will be
used for the integrated,
preconfigured test sequences and, if neces-
sary, change the assignment of test
sequences to rotary switch positions.
Attention!
!
The standard designation cannot be
changed retroactively! Stored mea-
surements retain the standard desig-
nation and it’s used in the test report.
For this reason, select the standard
designation carefully during initial
startup.
As soon as the standard designation
has been changed, the new designa-
tion is used in all future tests.
9.1 System Parameters
Basic system parameters must first be set:
Setup 1/3 > System 1/2 > Culture >
Language
Setup 1/3 > System 1/2 > Culture >
Keyboard Layout
Setup 1/3 > System 1/2 > Date/Time
(for report generation)
Setup 1/3 > System 2/2 > Brightness
(display brightness as %)
9.2 Test Standards /
Configuration of Integrated Test
Sequences
Test sequences in accordance with the stan-
dards (also called measurement or test
sequences) are preconfigured and inte-
grated into the test instrument. They consist
of a series of individual tests with subse-
quent documentation, as stipulated in the
respective standard. They can thus be used
to repeatedly and efficiently perform stan-
dards-compliant tests. Additional informa-
tion is available in section 14, “Test
Sequences (automatic test sequences)”.
In order to use the integrated test
sequences, they have to be prepared during
initial startup:
The integrated test sequences are identical
in terms of content, but they have different
national designations depending on the
country (DIN, VDE, ÖNORM, SNR etc.). Fur-
thermore, there are variants for each inte-
grated test sequence, e.g. for testing
PRCDs.
This is why a standard designation must first
be selected in the test instrument for the
integrated test sequences.
Attention!
!
Selection of the standard designation
is mandatory and must be com-
pleted during initial startup.
Standards which are not needed can be
deactivated in order to increase clarity.
The integrated test sequences are run in
orange rotary switch positions A1 through
A9. Integrated test sequences are preas-
signed to each rotary switch position at the
factory, but these assignments can be
changed. You can assign a different inte-
grated test sequence to a rotary switch posi-
tion if required, or leave the preselected,
integrated test sequences as they are.
9.2.1 Selecting the Standard Designation
and Deactivating Standards
During initial startup, the desired national
standard designation must be selected for
each integrated test sequence.
The integrated test sequences are identified
with this designation:
• For display at the test instrument (routine
daily work)
• In the test results saved to the test
instrument (and when these results are
exported, e.g. to IZYTRONIQ test soft-
ware) (data management)
• In reports (verification requirement)
SETUP

SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
20 Gossen Metrawatt GmbH
Attention!
!
The standard designation cannot be
changed retroactively! Stored mea-
surements retain the standard desig-
nation and it’s used in the test report.
For this reason, select the standard
designation carefully during initial
startup.
As soon as the standard designation
has been changed, the new designa-
tion is used in all future tests.
Standards which are not needed can be
deactivated in order to increase clarity.
The settings can be found under SETUP > Auto
Measurements. Each standard for which a test
sequence is integrated is displayed there.
➭SETUP 1/3 > Auto Measurements.
➭Scroll through the menu pages until the
individual standards appear.
➭Select the first standard via the softkey.
All possible standard designations are
displayed.
(An overview of all available standard
designations can be found on the follow-
ing page).
➭Select the desired standard designation
with the corresponding softkey.
Alternatively, the standard (the test se-
quence) can be deactivated by selecting
the off entry.
The menu is returned to the standards
display in Auto Measurements.
➭Repeat this procedure for all standards.
➭Finally, confirm with the green check-
mark. The settings are saved.
Overview of Integrated Standards
Note
Availability of the individual integrated
test sequences depends on the test
instrument type (SECUTEST ST... or
SECULIFE ST...), the selected fea-
tures (order features) and the
enabled extensions (activations).
Refer to your order / test instrument
and data sheet for details.
SETUP > Auto Measurements
4/7 > VDE 0701-0702 >
Off
OVE E 8701
SNR 462638
VDE 0701-0702
5/7 > IEC 62353 >
Off
EN 62353
IEC 62353
VDE 0751-1
5/7 > IEC 60974-4 >
Off
EN 60974-4
IEC 60974-4
VDE 0544-4
5/7 > NEN 3140 >
Off
NEN 3140
6/7 > EN 50678 >
Off
EN 50678
VDE 0701
6/7 > EN 50699 >
Off
EN 50699
VDE 0702
6/7 > IEC 62368 >
Off
EN 62368
IEC 62368
VDE 0868-1
7/7 > IEC 62911 >
Off
EN 62911
IEC 62911
VDE 0868-911