WIKA DG-05 User manual

Operating instructions
© 2021 WIKA Alexander Wiegand SE & Co. KG
All rights reserved.
WIKA® is a registered trademark in various countries.
Prior to starting any work, read the operating instructions!
Keep for later use!
EN
Switzer Process Instruments Pvt. Ltd.
128 SIDCO North Phase
Ambattur Industrial Estate, Chennai 600 098
Tel. [phone] / 2018 / 9840919318
[email protected]
www.wika.co.in
Digital pressure gauge
For general industrial applications
Model DG-05
Contents
1. General information
2. Design and function
3. Safety
4. Transport, packaging and storage
5. Commissioning, operation
6. Faults
7. Maintenance and cleaning
8. Dismounting, return and disposal
9. Specifications
85502190.01 09/2021 EN

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WIKA operating instructions, Digital pressure gauge, model DG-05
1. General information
■The DG-05 digital pressure gauge described in the operating instructions has been
designed and manufactured using state-of-the-art technology. All components
are subject to stringent quality and environmental criteria during production. Our
management systems are certified to ISO 9001.
■These operating instructions contain important information on handling the DG-05
digital pressure gauge.Working safely requires that all safety instructions and work
instructions are observed.
■Observe the relevant local accident prevention regulations and general safety
regulations of use of the DG-05 digital pressure gauge.
■The operating instructions are part of the instrument and must be kept in the
immediate vicinity of the DG-05 digital pressure gauge and readily accessible to
skilled personnel at any time.
■Skilled personnel must have carefully read and understood the operating instruc-
tions, prior to beginning any work.
■ The manufacturer’s liability is void in the case of any damage caused by using
the product contrary to its intended use, non-compliance with these operating
instruments, assignment of insufficiently qualified skilled personnel or unauthorized
modifications to the DG-05 digital pressure gauge.
■ The general terms and conditions contained in the sales documentation shall apply.
■ Subject to technical modifications.
■ Further information:
- Internet address: www.wika.co.in
- Relevant data sheet: DatasheetPV91.21∙09/2021
2. Design and function
2.1 Overview
2.2 Description
The prevailing pressure is measured at the sensor element through the deformation of a
diaphragm. By supplying power, this deformation of the diaphragm is converted into an
electrical signal. This signal is displayed via a digital indicator.
The DG-05 is a digital pressure gauge and Full scale (FS) accuracy is ±0.5% based on
the upper limit of the measurement range.
2.3 Scope of delivery
Digital pressure gauge, operating instructions
Cross-check scope of delivery with delivery note.
2.4 Keys and Functions
Turns the device on / off
Press to change the display unit
Press for 2 seconds to zero the display value
Press to turn on the backlight
1. Front case
2. Removable back cover
3. Display
4. Process connection
k j
l
m
ZERO
UNIT
LIGHT
ON/OFF

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WIKA operating instructions, Digital pressure gauge, model DG-05
3. Safety
3.1 Explanation of symbols
WARNING!
... indicates a potentially dangerous situation that can result in serious injury or
death, if not avoided.
CAUTION!
... indicates a potentially dangerous situation that can result in light injuries or
damage to property or the environment, if not avoided.
WARNING!
... indicates a potentially dangerous situation that can result in burns, caused
by hot surfaces or liquids, if not avoided.
Information
... points out useful tips, recommendations and information for efficient and
trouble-free operation.
3.2 Intended use
The DG-05 digital pressure gauge acts as the display for the applied pressure.The
pressure value is displayed via a digital indicator.
WARNING!
Injuries due to incorrect application
Use in the wrong application can lead to considerable personal injury and
damage to equipment.
▶Only use the instrument in applications that lie within its technical perfor-
mance limits (e.g. max. ambient temperature, material compatibility, ...).
▶For performance limits see chapter 9 “Specifications”.
▶This instrument is not permitted to be used in hazardous areas!
The instrument has been designed and built solely for the intended use described here,
and may only be used accordingly.
The technical specifications contained in these operating instructions must be
observed. Improper handling or operating of the digital pressure gauge outside of its
technical specifications require the digital pressure gauge to be taken out of service
immediately and inspected by an authorized WIKA service engineer.
The manufacturer shall not be liable for claims of any type based on operation contrary
to the intended use.
3.3 Personnel qualification
WARNING!
Risk of injury should qualification be insufficient!
Improper handling can result in considerable injury and damage to equipment.
▶ The activities described in these operating instructions may only be carried
out by skilled personnel who have the qualifications described below.
Skilled electrical personnel
Skilled electrical personnel are understood to be personnel who, based on their
technical training, know-how and experience as well as their knowledge of country-spe-
cific regulations, current standards and directives, are capable of carrying out work on
electrical systems and independently recognising and avoiding potential hazards.
Special knowledge for working with instruments for hazardous areas:
The skilled personnel must have knowledge of ignition protection types, regulations and
provisions for equipment in hazardous areas.
Special operating conditions require further appropriate knowledge, e.g. of aggressive
media.
3.4 Labelling, safety marks
Product label (example)
Before mounting and commissioning the instrument, ensure you read the
operating instructions!
1. Range
2. Serial number
3. Product number

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WIKA operating instructions, Digital pressure gauge, model DG-05
4. Transport, packaging and storage
4.1 Transport
Check the instrument for any damage that may have been caused by transport.
Obvious damage must be reported immediately.
CAUTION!
Damage through improper transport
With improper transport, a high level of damage to property can occur.
▶ When unloading packed goods upon delivery as well as during internal
transport, proceed carefully and observe the symbols on the packaging.
▶ With internal transport, observe the instructions in chapter 4.2 “Packaging
and storage”.
If the instrument is transported from a cold into a warm environment, the formation of
condensation may result in instrument malfunction. Before putting it back into operation,
wait for the instrument temperature and the room temperature to equalise.
4.2 Packaging and storage
Do not remove packaging until just before mounting.
Keep the packaging as it will provide optimum protection during transport (e.g. change
in installation site, sending for repair).
Permissible conditions at the place of storage:
■ Storage temperature: 0 ... +50 °C (32 ... +122 °F)
■ Humidity: <95% relative humidity (non-condensing)
Avoid exposure to the following factors:
■ Direct sunlight or proximity to hot objects
■ Mechanical vibration, mechanical shock (putting it down hard)
■ Soot, vapour, dust and corrosive gases
■ Hazardous environments, flammable atmospheres
Store the instrument in its original packaging in a location that fulfils the conditions listed
above.
5. Commissioning, operation
CAUTION!
Prior to commissioning, the digital pressure gauge must be subjected to a
visual inspection. Only use the digital pressure gauge if it is in perfect condi-
tion with respect to safety. With improper transport, a high level of damage to
property can occur.
Required tool: Open-ended spanner (spanner width 28 mm)
5.1 Mechanical mounting
■ The DG-05 digital pressure gauge is available with male thread 1/4" NPT(M).
■ When fitting the DG-05 digital pressure gauge, the force required to mount / seal
must not be applied through the case, but only through the spanner flat provided for
this purpose and using a suitable tool.
■ The correct torque depends on the dimensions of the process connection.
■ Do not overwind the process connection.

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WIKA operating instructions, Digital pressure gauge, model DG-05
5.2 Voltage supply
The power supply for the digital pressure gauge is provided via 3x1.5 V AA cells. The
operating time is approx. 1000 hours, when using batteries with a capacity of 2000 mAh.
Change the batteries as follows, as soon as the low battery indication “LOW BAT”
shows in the display.
Turn off (OFF)
Press ON/OFF button for 2 seconds to turn off.
Turn on backlight
Press Light button once to turn on the backlight.The backlight is shut off
automatically after 120 seconds. Press again to turn on the backlight.
Zero-point correction (ZERO)
The zero point can be corrected manually if undesired deviations occur when no
system pressure is being applied (atmospheric pressure).
5.3 Operating the DG-05 digital pressure gauge
Turning on (ON)
Press ON/OFF button to power up the DG-05.
Below sequence will be displayed during boot up.
Press for
2 seconds
Press
toconrm
Ensure no system
pressure
SET ZERO
PRESSURE
Obvious damage must be reported immediately.
CAUTION!
▶The zero-point correction sets the current actual value to zero. In order to
exclude faulty measurements, ensure no system pressure is being applied
when carrying out this function.
▶This initiates the zero-point correction. The actual value is indicated in the
display as 0.0 bar. The correction remains active until the device is turned
off.
▶ZeroErr. is displayed for 2 seconds if the measured pressure (0 bar) is
greater than 5% of the measurement range.
▶Zero-point correction cannot be carried out. Please ensure that no system
pressure is being applied.
Switzer
DG-05
VER 1.00
CalRange
10.00bar
Manufacturer
Model number
Program version
Calibration range
Instrument calibrated range
Gently lift the battery using
aattoolandchangebatteries
Rotate clockwise
and close the cover
DescriptionDisplay
Rotate anti-clockwise and open the cover
ZERO ZERO
ZERO
LIGHT
ON/OFF
ON/OFF

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WIKA operating instructions, Digital pressure gauge, model DG-05
6. Faults
In the event of any faults, first check whether the digital pressure gauge is mounted
correctly, mechanically and electrically.
Faults Causes Measures
No display
Batteries discharged Change batteries
Batteries inserted the
wrong way around
Insert the batteries with the
polarity correct
Constant display
signal upon change in
pressure
Mechanical
overload caused by
overpressure
Replace instrument
Deviating zero point
signal
Medium or ambient
temperature too high/
low
Observe the permissible
temperatures
For the exchange of the instrument chapters 8 “Dismounting, return and disposal”
and 5 “Commissioning, operation” must be observed.
If complaint is unjustified, we will charge you the complaint processing fees.
CAUTION!▶If faults cannot be eliminated by means of measures listed above, shut
down the digital pressure gauge immediately, and ensure that pressure
and /or signal are no longer present, and secure the instruments from
being put back into operation inadvertently.
▶Contact the manufacturer.
▶If a return is needed, please follow the instructions given in chapter 8.2
“Return”.
For contact details see chapter 1 “General information”.
Changing the unit
Press Unit button to change the units. Below are the displayed alphabets for
each unit
Press
simultaneously
both buttons
to change the
Autootimevalues
Press
+
Press
toconrm
Auto o
5 mins
15 mins
30 mins
60 mins
Unit Displayed Unit
bar bar
psi psi
Kg/Cm² ksc
kPa kPa
MPa MPa
cmWC cmW
mmWC mmW
mbar mbr
Auto-OFF Menu
Press and buttons simultaneously to enter into auto-off settings.
The DG-05 auto power-off can be set as 5, 15, 30, 60 minutes.
ZERO
UNIT
UNIT
UNIT
UNIT
ON/OFF
ON/OFF

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WIKA operating instructions, Digital pressure gauge, model DG-05
8. Dismounting, return and disposal
WARNING!
Physical injuries and damage to property and the environment through
residual media
Residual media in the dismounted instrument can result in a risk to persons,
the environment and equipment.
▶ Observe the information in the material safety data sheet for the
corresponding medium.
▶ Wash or clean the dismounted instrument, in order to protect persons and
the environment from exposure to residual media.
8.1 Dismounting
Only disconnect test- and calibration installations when the system has been
depressurized!
8.2 Return
Strictly observe the following when shipping the instrument:
All instruments delivered to WIKA must be free from any kind of hazardous substances
(acids, bases, solutions, etc.) and must therefore be cleaned before being returned.
WARNING!
Physical injuries and damage to property and the environment through
residual media
Residual media in the dismounted instrument can result in a risk to persons,
the environment and equipment.
▶ With hazardous substances, include the material safety data sheet for the
corresponding medium.
▶ Clean the instrument, see chapter 7.2 “Cleaning”.
When returning the instrument, use the original packaging or a suitable transport packaging.
8.3 Disposal
Incorrect disposal can put the environment at risk.
Dispose of instrument components and packaging materials in an environmentally
compatible way and in accordance with the country-specific waste disposal regulations.
7. Maintenance and cleaning
7.1 Maintenance
The instrument is maintenance-free. Repairs must only be carried out by the manufac-
turer. Except for battery replacement.
7.2 Cleaning
Before cleaning, correctly disconnect the DG-05 digital pressure gauge from the
pressure supply and switch it off.
CAUTION!
▶Clean the DG-05 digital pressure gauge with a moist cloth.
▶Clean the dismounted DG-05 digital pressure gauge before returning it, in
order to protect staff and the environment from exposure to residual media.
▶Residual media in dismounted DG-05 digital pressure gauge can result in
a risk to persons, the environment and equipment.Take sufficient precau-
tionary measures.
For information on returning the DG-05 digital pressure gauge see chapter
“8.2 Return”
7.3 Recalibration
We recommend that the instrument is regularly recalibrated by the manufacturer, with
time intervals of approx. 12 months. Every factory recalibration includes, additionally,
an extensive check of all system parameters with respect to their compliance with the
specification. The basic setting will be corrected if necessary.

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WIKA operating instructions, Digital pressure gauge, model DG-05
Range Over
pressure limit
Burst
pressure
Unit : bar
0 … 1 2 5
0 … 2.5 5 12.5
0 ... 4 8 20
0 … 10 20 50
0 … 16 32 80
0 … 25 50 125
0 … 40 80 160
0 … 100 200 400
0 … 250 375 1,000
0 … 400 600 1,200
Range Over
pressure limit
Burst
pressure
Unit : cmWC
0 ... 200 600 1200
0 ... 350 1050 2100
0 ... 700 2100 4200
Measuring ranges
Material
Wetted parts
Process connection Stainless steel 316
Sealing material Viton
Sensor element Stainless steel 316L
Non-wetted parts
Case Stainless steel 304
Front foil and membrane Polycarbonate
Operating condition
Ambient temperature 0 … 60°C [32 … 140 °F]
Medium temperature 0 ... 80°C [32 … 176 °F]
Storage temperature 0 ... 50°C [32 … 122 °F]
Relative humidity < 95% (non-condensing)
Ingress protection IP65 per IS/IEC 60529
Weight Approx. 550 grams
9. Specifications
Indicator
Display Four character numeral with one decimal point and
three character for unit
Character size 12 mm [0.47 in]
Measuring rate 200 ms
Backlighting Yes
Dimensions 50 x 14 mm [1.97 x 0.55 in]
Functions
Automatic power-o Adjustable
Zero function Yes
Pressure Units bar, psi, Kg/cm², kPa, Mpa, cmWC, mmWC, mbar
Accuracy
Accuracy ±0.5 % of span
(including non-linearity, hysteresis, repeatability)
Temperature error at 0 ... 60°C
Mean temperature
coecient of zero point ±0.15 % of span / 10 K
Mean temperature
coecient of span ±0.15 % of span / 10 K
Long-term stability ±0.2 % of span / year
Voltage supply
Power supply 3 x 1.5 V AA batteries
Battery life Approx. 1000 hours
Process connection
Thread size 1/4" NPT (M) per ASME B1.20.1
Others through adaptors