User Manual
Pressure Gauge PCE-DMM 70 / PCE-DMM 60
1.1 Information on the operating manual
This operating manual contains important information on proper
usage of the device. Read this operating manual carefully before
installing and starting up the pressure measuring device.
Adhere to the safety notes and operating instructions which are
given in the operating manual. Additionally applicable regulations
regarding occupational safety, accident prevention as well as
national installation standards and engineering rules must be
complied with!
This operating manual is part of the device and must be kept at
a, for the personnel always accessible location, close to the
installation position of the device.
This operating manual is copyrighted. The contents of this
operating manual reflect the version available at the time of
printing. It has been issued to our best knowledge and belief.
However, errors may have occurred. For incorrect statements
and their consequences, liability cannot be assumed by PCE
Instruments.
– Technical modifications reserved –
1.2 Symbols used
DANGER!
– Dangerous situation, which may result in
serious or fatal injuries
WARNING!
– Potentially dangerous situation, which may
result in fatal or serious injuries
CAUTION!
– Potentially dangerous situation, which may
result in minor injuries
!
CAUTION!
– Potentially dangerous situation, which may
result in damage of objects
NOTE
– Tips and information for the user to ensure good
conditions for the operation.
1.3 Target group
WARNING! To avoid hazards for the operator and damages
of the device, following described instructions have to be
worked out by qualified technical personnel.
1.4 Limitation of liability
No liability is assumed and warranty claims are excluded in case
of non-observance of the operating manual, improper application,
modification of or damage to the device.
1.5 Intended use
- The battery powered digital gauge has been designed for
extremely high demands in the sector of calibration and test
technology. It can be easily and quickly installed in situ.
- It is in the responsibility of the user to verify whether the
chosen device is suitable for the intended application. In case
of any doubts, contact our sales department to eliminate any
indistinctness. PCE Instruments does not assume any liability
for an incorrect selection and its consequences!
WARNING! - Danger through improper usage!
1.6 Package contents
Please verify that all listed parts are undamaged included in the
delivery and check for consistency specified in your order.
The batteries are already used. The circuit is interrupted by an
insulation foil. Take this before first introduction, see in addition
battery change!!
2. Mechanical Installation
2.1 Mounting and safety instructions
WARNING!
Mount the device (pressure transmitter module)
always in the state without pressure and apart from the dis-
play!
WARNING!
This device may only be installed by qualified
technical personnel who has read and understood the
operating manual!
WARNUNG!
Do not use the display to tighten or solve to
the mechanical connection of the pressure transmitter mod-
ule!
!
Handle this electronic precision measuring device carefully
in packed as well as in unpacked condition!
!
The device must not be subject to any changes or
modifications.
!
The device may not be thrown!
!
To avoid damaging the diaphragm, remove packaging and
protective cap only directly before starting up the device. A
delivered protective cap must be stored!
!
Place the protective cap on the pressure port again
immediately after disassembling.
!
Handle the unprotected diaphragm very carefully - it is very
sensitive and may be easily damaged.
!
Do not use any force when installing the device to prevent
damage of the device and the plant!
Take note that no inadmissibly high mechanical stresses
occur at the pressure port as a result of the installation,
since this may cause a shifting of the characteristic curve or
to the demage. This is especially important for very small
pressure ranges as well as for devices with a pressure port
made of plastic.
In hydraulic systems, position the device in such a way that
the pressure port points upward (venting).
Provide a cooling line when using the device in steam lines.
2.2 General installation steps
- Carefully remove the pressure measuring device from the
package and dispose of the package properly.
- Then go ahead as detailed in the specific instructions
below.
2.3 Installation steps for DIN 3852
DO NOT USE ANY ADDITIONAL SEALING MATERIALS,
LIKE YARN, HEMP OR TEFLON TAPE!
- Check to ensure the proper groove fitting of the o-ring and
additionally to ensure no damage to the o-ring.
- Ensure that the sealing surface of the taking part is perfectly
smooth and clean. (R
Z
3.2)
- Screw the device into the corresponding thread by hand.
- If you have a device with a knurled ring, the transmitter has
to be screwed in by hand only.
- Devices with a spanner flat have to be fully tightened with
an open-end Devices (G1/4": approx. 5 Nm; G1/2": approx.
10 Nm).
-
The indicated tightening torques must not be
exceeded!
2.4 Installation steps for EN 837
- Use a suitable seal, corresponding to the medium and the
pressure input (e. g. a cooper gasket).
- Ensure that the sealing surface of the taking part is perfectly
smooth and clean. (R
Z
6.3)
- Screw the device into the corresponding thread by hand.
- Tighten it with a wrench (for G1/4": approx. 20 Nm; for
G1/2": approx. 50 Nm).
-
The indicated tightening torques must not be
exceeded!
2.5 Installation steps for NPT
- Use a suitable seal (e. g. a PTFE-strip).
- Screw the device into the corresponding thread by hand.
- Tighten it with a wrench (for 1/4" NPT: approx. 30 Nm; for
1/2" NPT: approx. 70 Nm).
-
The indicated tightening torques must not be
exceeded!
2.6 Installation steps for internal threads M20x1.5 and 9/16"
UNF (for DM01-500 HD)
- Screw the high pressure connection into the internal thread
of the pressure port and tighten it properly with approx. 160
Nm.
-
DANGER! The high pressure tube seals metal-to-metal
in the chamfer of the pressure port. No further seal is
allowed with this high pressure connection. A wrong
installation can cause enormous danger!
3. Connection display with pressure transmitter module
Connect display with
pressure transmitter
module as follows:
- bring together carefully the display with
pressure transmit-
ter
module.
- press the display sturdy
pressure transmitter
module to this
engages.
4.
Supply
/
changing the batteries
As soon as in the display the announcement of "battery" is
shown, carry out battery change as follows:
- unscrew three fixing screws with a suitable screwdriver.
- take the battery case cap and exchange the batteries 3 x
1.5 V AA
(remove the insulation foil before first intro-
duction)
.
- lock the device after that properly
!
An incorrect usage may cause a leak out of batteries and
so a damage the
device
!
!
Never combine batteries of different types or old with new
ones!
!
Make sure that the batteries are connected correctly with
the corresponding contacts in the battery tray.
!
Never try to charge batteries, demount them, or short -
circuit them.
!
use only batteries with UL certification
!
Keep the batteries away from heat and unshielded flame.
5. Data logger
The battery powered digital gauge disposes of an integrated data
logger. The measuring values stored away in the device can be
selected above the communication interface by means of
software.
5.1 PC - connection
Connect
device
with a computer as follows:
- unscrew the protective screwing of the communication
interface with a suitable slit screwdriver.
- connect the handle plug of the connecting cable (included
in delivery) with the interface socket of the
device
. Con-
nect the side with the USB plug with a free USB connec-
tion on the computer.
- install the COM driver and data logger software.
- after the use, disconnect the connection and lock the
protection screwing again properly.
6. Initial start-up
remove the insulation foil before first introduction
.
WARNING!
Before start-up, the user has to check for
proper installation and for any visible defects.
WARNING!
The device can be started and operated by
authorized personnel only, who have read and understood
the operating manual!!
WARNING!
The device has to be used within the technical
specifications, only (compare the data in the data sheet)!
7. Placing out of service
WARNING!
When dismantling the device, it must always be
done in the depressurized and currentless condition! Check
also if the medium has to be drained off before dismantling!
WARNING!
Depending on the medium, it may cause
danger for the user. Comply therefore with adequate
precautions for purification.
8. Operation
8.1 Operating and display elements
The display of the measuring value as well as configuring the
single parameters occurs menu-steered about a LC display
capable of graphic arts. The single functions are regulated on the
basis of three-front-sided arranged push buttons.
The menu system is closed, thereby one can "browse" forward
as well as backward by the single setting menus to reach to the
desired setting point.
8.2 Structure of the menu system
Fig. 3 Display and operating foil
barograph
display
right button
menu button
left button
Fig. 2 Battery case cap and communication interface
Fig. 2 Battery case cap and communication interface
battery case
battery case cap
fixing screw
connecting cable
comm. -
interface
insulation foil
protection screwing
battery
timer / battery
pressure value
time
temperature
Fig. 1 Lock against protection
lock against
protection
pressure transmit-
ter module
display
PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: (561) 320-9162
Fax: (561) 320-9176
www.pce-instruments.com/english
www.pce-instruments.com
PCE Instruments UK Ltd.
Unit 11
Southpoint Business Park
Ensign way
Hampshire / Southampton
United Kingdom, SO31 4RF
From outside UK: +44
Tel: (0) 2380 98703 0
Fax: (0) 2380 98703 9
