Wohler SC 602 User manual

The Measure of Technology
Operation Manual
Smart Connect Pressure Meter
Best.-Nr. 25160– 2023-02-24
Wöhler SC 602

General information
2
Contents
1General information..............................4
1.1 Commissioning on delivery with optional
rechargeable battery ..................................... 4
1.2 Information on the operating instructions ...... 4
1.3 Notes in the operating instructions ................ 4
1.4 Intended use ................................................. 5
1.5 Basic equipment............................................ 6
1.6 Hand strap..................................................... 6
1.7 Transportation ............................................... 6
1.8 Disposal ........................................................ 6
1.9 Manufacturer address ................................... 7
2Specification..........................................8
2.1 Measured values........................................... 8
2.2 Calculated values........................................ 10
2.3 Logger function ........................................... 11
2.4 Technical data............................................. 12
3Structure and functions .....................13
4Switch on.............................................15
4.1 Display indication ........................................ 16
5Make settings directly on the device 18
5.1 Pressure unit selection................................ 18
5.2 Print resolution selection ............................. 18
5.3 Selection of the temperature unit ................ 18
5.4 Switch display illumination on/off................. 18
5.5 Deactivate automatic shutdown function..... 19
5.6 Probes and connection components ........... 20
6Checking the measurement equipment
..............................................................22
7Wöhler Smart Connect App...............23
7.1 System requirements for the end device..... 23
7.1.1 Installing the Wöhler Smart Connect App.... 23
8Measurements on gas pipes..............23
8.1 Stress test on gas pipes .............................. 24

General information
3
8.2 Leak test on gas pipes................................. 29
8.3 Leakage rate test of gas pipelines ............... 33
8.4 Pipe volume measurement .......................... 39
9Measurements on water pipes ..........42
9.1 Leak test performed with air on drinking water
pipes ............................................................ 43
9.1.1 Preperations for the measurement .............. 44
9.2 Stress test on drinking water pipes with air.. 49
10 Battery change....................................55
11 Maintenance........................................55
12 Warranty and Service.........................56
12.1 Warranty ...................................................... 56
12.2 Service......................................................... 56
13 Accessories.........................................57
14 Declaration of Conformity .................58
15 DVGW- certificate ...............................59
Sales and service points ..............................60

General information
4
1 General information
1.1 Commissioning on
delivery with optional
rechargeable battery
Fig
. 1:
Bottom part of battery module Wöhler SC
602, slide switch marked with arrow
If your device is operated with a rechargeable
battery and not with batteries (optional), the
transport lock is set at delivery so that the device
cannot be switched on.
•
In this case, open the battery compartment on
the back of the device.
•
Set the very small black slide switch at the
bottom of the battery module from the off posi-
tion to the on position.
This procedure is only necessary before the initial
start-up.
1.2 Information on the op-
erating instructions
These operating instructions enable you to work
safely with the Wöhler SC 602 Smart Connect.
Keep these operating instructions in a safe place.
The Wöhler SC 602 may only be used by trained
professionals for the intended purpose.
We accept no liability for damage resulting from
failure to observe these operating instructions.
1.3 Notes in the operating
instructions WARNING!
Indicates instructions which, if not
Indicates a risk of injury or death if the instructions
are not followed.
ATTENTION!
Indicates information about hazards that can re-
sult in damage to the device or objects.
NOTE!
Highlights tips and other useful information.

General information
5
1.4 Intended use
The Wöhler SC 602 is to be used for differential
pressure, absolute pressure, temperature meas-
urement as well as humidity registration.
In connection with the app, the device is intended
for the following applications:
Load and leak test and serviceability test (pres-
sure decay method) Flow, system, rest and nozzle
pressure

General information
6
1.5 Basic equipment
Device
Delivery scope
Wöhler SC 602
Wöhler SC 602
Smart Connect
2 batteries 1,5 V
Hand strap and bag
1,5 V
1.6 Hand strap
Fig
. 2: Attachment of the hand strap
below the battery compartment
The Wöhler SC 602 is supplied with a hand strap. If
you want to use the hand strap, mount it as follows
:
•
Remove the battery cover on the back of the
instrument.
•
Hang the strap on the small hook below the
batteries.
•
Close the battery cover.
1.7 Transportation
ATTENTION!
The unit can be damaged if it is not transported
correctly!
To avoid transport damage, the device should
always be transported in the bag provided.
1.8 Disposal
Electronic equipment does not belong in normal
domestic waste and must be disposed of in ac-
cordance with the applicable regulations.
Defective batteries are considered hazardous
waste and must be taken to the designated collec-
tion points for disposal.

General information
7
1.9 Manufacturer address
Wöhler Technik GmbH
Wöhler-Platz 1
33181 Bad Wünnenberg
Tel.: [phone]
E-Mail: [e-mail]

Specification
8
2 Specification
2.1 Measured values
Differential pressure measurement
(temperature-compensated piezo
bridge)
Description
Reading
Preset unit
hPa
Measuring range
± 3.000 hPa
Permissible overload
± 3.200 hPa
Accuracy
< 3% of the measured
value; in the range < ±
2 hPa better than ±
0.06 hPa
Resolution
0.01 Pa in the range
from
–210 hPa to
+210 hPa,
otherwise 0.1 hPa
Usability measurement (in connec-
tion with the Wöhler Smart Con-
nect App)
Description
Reading
Measuring range
0 to 300,0 l/h
Accuracy
± 0,2 l/h
in the range from 0 to
4 l/h, otherwise 5% of
the measured value
Resolution
0,1 l/h
Internal temperature measurement
Description
Reading
Measuring range
-20 °C to 60°C
Accuracy
< ± 1 °C
Resolution
0,1°C

Specification
9
External temperature measure-
ment
(with a temperature clamp probe or
surface temperature sensor)
Description
Reading
Measuring range
-20,0 °C to +800,0 °C
Accuracy
< ± 1°C in the range from
-20°C to 67°C,
otherwise 1.5% of the
measured value,
in acc. with EN 50379-1
Resolution
0,1°C
Humidity measurement
Description
Reading
Measuring range
0% to 100% RH (relative
humidity), non-condensing
Accuracy
± 5 % RH
Resolution
0,1 % RH
Response time
Up to 180 min.
Absolute pressure
Description
Reading
Measuring range
300 hPa to 1100 hPa
Accuracy
± 2 hPa
Resolution
0,1 hPa

Specification
10
2.2 Calculated values
Calculated
parameter
Calculation
Pressure units
Conversion to hPa, Pa,
mmH2O, PSI, inwc, bar, mbar
in accordance with the gen-
erally accepted conversion
guidelines.
Temperature
units
Conversion from °C to °F in
accordance with the general-
ly accepted conversion
guidelines.
Pipe volumes
Automatic from 0,0 to 1000,0
l
Calculated
parameter
Calculation
Usability meas-
urement
Pressure drop
(in connection
with the Wöhler
Smart Connect
App)
Gas leakage rate from pres-
sure drop (classe D):
0,0 to 300,0 l/h via pressure
drop
in accordance with DVGW-
TRGI worksheet G 600 in l/h.