SIKA MH3160-07 User manual

SIKA, Dr. Siebert & Kühn GmbH & Co. KG, Struthweg 7-9, 34260 Kaufungen, Germany 1/8
Tel: [phone], Fax: [phone], email: [email protected], web: www.SIKA.net
User’s Manual
Handheld Digital Precision Manometer
MH3160-07
-10,0 to 350,0 mbar relative
Version 4.7

SIKA, Dr. Siebert & Kühn GmbH & Co. KG, Struthweg 7-9, 34260 Kaufungen, Germany 2/8
Tel: [phone], Fax: [phone], email: [email protected], web: www.SIKA.net
CONTENTS
1 GENERAL ................................................................................................................................................2
1.1 SAFETY REQUIREMENTS.......................................................................................................................2
1.2 OPERATION AND MAINTAINANCE ADVICE ...............................................................................................3
1.3 CONNECTIONS .....................................................................................................................................3
1.4 DISPLAY ..............................................................................................................................................3
1.5 BASIC OPERATION................................................................................................................................3
2 CONFIGURATION.................................................................................................................................... 4
2.1 UNIT:COICE OF THE DISPLAY UNIT.......................................................................................................4
2.2 P.OFF: AUTO POWER OFF TIME............................................................................................................4
2.3 ADR:BASE ADDRESS OF INTERFACE .....................................................................................................4
3 ERROR AND SYSTEM MESSAGES........................................................................................................ 5
4 PRESSURE CONNECTION TO THE SENSORS ..................................................................................... 6
5 CALIBRATION SERVICES ......................................................................................................................6
6 THE SERIAL INTERFACE ....................................................................................................................... 6
7 SPECIFICATION ......................................................................................................................................8
General
Safety Requirements
This device has been designed and tested in accordance with the safety regulations for electronic devices.
However, its trouble-free operation and reliability cannot be guaranteed unless the standard safety
measures and special safety advises given in this manual will be adhered to when using the device.
1. Trouble-free operation and reliability of the device can only be guaranteed if the device is not subjected
to any other climatic conditions than those stated under "Specification".
2. Device and sensors have to be handled with care (don’t throw, hit, etc.). Protect plugs and sockets from
soiling.
3. If the device is transported from a cold to a warm environment condensation may cause in a failure of
the function. In such a case make sure the device temperature has adjusted to the ambient temperature
before trying a new start-up.
4. If device is to be connected to other devices (e.g. via serial interface) the circuitry has to be designed
most carefully. Internal connection in third party devices (e.g. connection GND and earth) may result in
not-permissible voltages impairing or destroying the device or another device connected.
Warning: If device is operated with a defective mains power supply (e.g. short circuit from mains
voltage to output voltage) this may result in hazardous voltages at the device (e.g. at sensor socket or
interface).
5. If there is a risk whatsoever involved in running it, the device has to be switched off immediately and to
be marked accordingly to avoid re-starting.
Operator safety may be a risk if:
- there is visible damage to the device
- the device is not working as specified
- the device has been stored under unsuitable conditions for a longer period of time.
In case of doubt, please return device to manufacturer for repair or maintenance.

SIKA, Dr. Siebert & Kühn GmbH & Co. KG, Struthweg 7-9, 34260 Kaufungen, Germany 3/8
Tel: [phone], Fax: [phone], email: [email protected], web: www.SIKA.net
main display: shows measuring value.
!
: indicates weak battery or other warnings
secondary display: min-, max- or hold value
Logg: no function
AL: no function
Units: an arrow points to
the chosen measuring unit
Tara: appears if tara-
function is activated.
SL: no function
Operation And Maintainance Advice
•Battery Operation
If and ´bAt´ are shown in the secondary display the battery has been used up and needs to be
replaced. The device will, however, operate correctly for a certain amount of time. If ´bAt´ is shown in
the upper display the voltage is too low to operate the device; the battery has been completely used up.
Please note: We recommend to take out battery if device is not used for a longer period of time!
•Mains Operation With Power Supply
Warning: When using a power supply please note that operating voltage has to be 10.5 to 12 V DC.
Do not apply overvoltage!! Cheap 12V-power supplies often have excessive no-load voltage.
We, therefore, recommend using regulated voltage power supplies. Trouble-free operation is
guaranteed by our power supply GNG10/3000.
Prior to connecting the power supply to the mains make sure that the operating voltage stated at the
power supply is identical to the mains voltage.
Connections
Connection for pressure tubes: „+“ = higher pressure, „-“ = lower pressure
Interface: Connection for el. isolated interface adapter (p.r.t. chapter 0)
The mains adapter socket is located at the left side of the device.
Display
Basic
Operation
When switching on the device and a zero point adjustment was carried out it shows shortly „nuLL Corr“.
On-/Off-Switch
Tara: Calling of tara function, zero point adjustment
min/max: Showing the min- resp. max-memory in sec. display
Store/Quit: Calling of hold function
Set/Menu: Calling of configuration
Max Memory: Pressing ´max´ (key 2) shows the maximum of the measured
values. Pressing it again hides it. To clear the max memory press key ´max´ for >2
seconds.
Min Memory: Pressing ´min´ (key 5) shows the minimum of the measured values. Pressing it again
hides it. To clear the min memory press key ´min´ for >2 seconds.
Hold Function: By pressing ´Store/Quit´ (key 6) the last measuring value will be held in the secondary
display. Pressing it again hides it.
Tare Function: By pressing ´Tara´ (key 3) the display will be set to 0. All measurings from then on will be
displayed relatively to the set tare value. When tara function is activated, the arrow
"Tara" appears in the display. To deactivate tare function press ´Tara´ for >2 seconds.
Please Note: Activating/deactivating tara clears the max- & min-memories.
123
456
ON
OFF max
Tara
StoreminSet
Menu Quit
!

SIKA, Dr. Siebert & Kühn GmbH & Co. KG, Struthweg 7-9, 34260 Kaufungen, Germany 4/8
Tel: [phone], Fax: [phone], email: [email protected], web: www.SIKA.net
Zero-Point Adjustment: If there is no pressure applied to the pressure ports the device will display 0. If
there is a permanent deviation (and device is operated under steady conditions), a
permanent zero point adjustment can be carried out.
To carry out the adjustment press key 3 for 5 seconds.
(Please note: A zero-point adjustment can only be carried out if the difference between
the value on display and the value calibrated on site is less than 2%! E.g. for the
measuring range of –10.0 ..+350.0mbar, =>zero-point adjustment up to 7.0mbar possible)
To recall the manufacturer`s calibration press button 3 for approx. 7 seconds.
Note: If a zero-point adjustment was carried out, this will be signalled by the short
displaying of „NuLL Corr“ when switching on the device.
Configuration
To change device settings, press Menu (key 4) for 2 seconds. This will call the configuration menu.
Pressing key Menu jumps between the parameters.
The parameters can be changed with (key 2) or (key 5).
Quit (key 6) finishes the configuration and returns to standard measuring operation.
Unit: Coice Of The Display Unit
Choose the desired display unit, the refering unit is displayed by means of a functional arrow in
the display. The selection is permanently stored in the device, therefore after power on the unit
will instantly reapear. The choice depends on the used sensor.
The unit [m] =mH2O is just supported by devices with [m] printed below the display!
P.oFF: Auto Power Off Time
The device will be automatically switched off if no key is pressed/no interface communication
takes place for the time of the power off time.
The power off time can be set to values between 1 and 120 min. It can be completely
deactivated by setting the paramter to ‚P.oFF = oFF“.
Adr: Base Address of Interface
Up to 10 devices of the MH3xxx- handheld-family can be connected to a serial interface at
once (depending on interface converter, e.g. GRS3105: 5 devices). To get access to each
device the base addresses of the devices have to be different. For example choose 01 for the
first, 11 for the second device and so on.
MPaPabarmbar kPa
Tara AL LoggSLPSI
mbar
MPaPabarmbar k Pa
Tara A L LoggSL
PSI
MPaPabarmbar kPa
Tara AL LoggSLPSI
mbar

SIKA, Dr. Siebert & Kühn GmbH & Co. KG, Struthweg 7-9, 34260 Kaufungen, Germany 5/8
Tel: [phone], Fax: [phone], email: [email protected], web: www.SIKA.net
Error And System Messages
Display Meaning What to do?
Low battery power, device will only continue
operation for a short period of time Replace battery
Battery empty Replace battery
Mains operation without battery: wrong voltage Check power supply, replace it when
necessary
Battery empty Replace battery
Mains operation without battery: wrong voltage
or polarity Check power supply, replace it when necessary
System error Disconnect battery and power supplies,
wait shortly, then reconnect
No display or
confused
characters,
device does
not react on
keypress Device defective Return to manufacturer for repair
Measured value above allowable range Check: pressure above 350mbar?
-> measuring value to high
Err.1
Sensor defective Return to manufacturer for repair
Measured value below allowable range Check: pressure below -10mbar?
-> measuring value to high
Err.2
Sensor defective Return to manufacturer for repair
Err.4 Value is too low to be displayed, tara is set Check: display below -2000 (tara?)?
Err.9 Measured value far out of allowable range Check: pressure not within sensor range?
Err.7 System error Return to manufacturer for repair

SIKA, Dr. Siebert & Kühn GmbH & Co. KG, Struthweg 7-9, 34260 Kaufungen, Germany 6/8
Tel: [phone], Fax: [phone], email: [email protected], web: www.SIKA.net
Pressure Connection To The Sensors
•For measurements of over pressure (-10.0mbar...350.0mbar):
Connect plastic tube with internal dia of 4 mm to pressure port "+". Port "-" will not be used!
•For measurements of under pressure (-350.0mbar...0.0mbar):
Plug the tube to pressure port "-". The measuring range covers then -350.0 to 0.0 mbar.
Note: All values are displayed now as positive values. No minus sign will be shown.
Example: it is possible to messure under pressure down to -350.0 mbar, the display shows then the
value 350.0 (no minus sign).
•For measurements of pressure differences:
Connect both plastic tubes with an internal dia of 4 mm to pressure port "+" and "-"; make sure to apply
higher pressure to port "+".
Calibration Services
Calibration certificates – DKD-certificates – other certificates:
If device should be certificied for its accuracy, it is the best solution to return it with the refering sensors to
the manufacturer.
Only the manufacturer is capable to do efficient recalibration if necessary to get results of highest accuracy!
The Serial Interface
By means of the serial interface and a suitable electrically isolated interface adapter (GRS3100 or
GRS3105) the device can be connected to a computer for data transfer. With the GRS3105 up to 5 devices
of the MH3xxx- series can be connected to one interface (see also manual of GRS3100 or GRS3105)
To avoid transmission errors, there are several security checks implemented e.g. CRC.
The following standard software packages are available:
EBS9M: 9-channel software to display the measuring values
EASYCONTROL: Universal multi channel software (EASYBUS-, RS485-, or MH3000- operation
possible) for real-time recording and presentation of measuring data of one MH3xxx
device in the ACCESS®-data base format
In case you want to develop your own software we offer a MH3000-development package including:
•a universally applicable Windows functions library ('MH3000.DLL') with documentation that can be used
by the most programming languages.
•Programming examples Visual Basic 4.0, Testpoint (Keithley Windows measuring software)
Note: The measuring and display range values read back from the interface are always in the
selected measurement unit (mbar, bar...)!

SIKA, Dr. Siebert & Kühn GmbH & Co. KG, Struthweg 7-9, 34260 Kaufungen, Germany 7/8
Tel: [phone], Fax: [phone], email: [email protected], web: www.SIKA.net
Supported functions:
Code Name/Function Code Name/Function
0 Read measurement value 194 Set display unit
3 Read system state 199 Read kind of measuring of display
6 Read min memory 200 Read min display range
7 Read max memory 201 Read max display range
12 Read ID number 202 Read display range - unit
174 Clear min memory 204 Read display range – decimal point
175 Clear max memory 208 Read # of channels
176 Read min measuring range 222 Read power off time (Conf-P.oFF)
177 Read max measuring range 223 Set power off time (Conf-P.oFF)
178 Read measuring range – measuring unit 240 Reset
179 Read measuring range – decimal point 254 Program version
180 Read kind of measuring of sensor

SIKA, Dr. Siebert & Kühn GmbH & Co. KG, Struthweg 7-9, 34260 Kaufungen, Germany 8/8
Tel: [phone], Fax: [phone], email: [email protected], web: www.SIKA.net
Specification
Measuring ranges:
Display range: -10.0 to 350.0 mbar relative (under pressure down to –350.0 mbar, p.r.t. chapter 5)
Overload: max. 1000 mbar rel. (without destruction or recalibration of sensor being
necessary)
Resolution: 0.1 mbar (10 Pa)
Pressure units: mbar, bar, kPa, MPa, mmHg, PSI mH2O (only for devices with ‚m‘ printed below
display), selectable
Accuracy: (typ.) ±0,2%FS (hysteresis and linearity)
±0,4%FS (temperature dependency 0-50°C)
OPTION higher accuracy: ±0.1%FS (hyst., lin.)
±0.4%FS (temp. dep. 0-50°C)
Measuring rate: 4 meas./sec
Nominal temperature: 25°C
Sensor: Piezo-resistive relative pressure sensor integrated in device. Suitable for air and
non-corrosive and non-ionizing gases and liquids.
(Not suitable for water – use air buffering)
Connection: 2 metal pressure ports for connection to 6 x 1 mm tubes at the top of device (4mm
inner tube Ø)
Power-Off-Function: Device will be automatically switched off if no key is pressed/no interface
communication takes place for the time of the power-off delay. The power-off delay
can be set to values between 1 and 120 min.; it can be completely deactivated.
Display: 2 four digit LCDs (12.4mm high and 7 mm high) for measuring values, and for min/
max memories, hold function, etc. as well as additional functional arrows.
Pushbuttons: 6 membrane keys
Interface: Serial interface (3.5mm jack) can be connected to RS232 interface of a PC via
electrically isolated interface adapter GRS3100 or GRS3105 (see accessories).
Power supply: 9V battery, type: IEC 6F22 (included in scope of supply)
as well as additional d.c.connector (diameter of internal pin 1.9 mm) for external
10.5-12V direct voltage supply. (suitable power supply: GNG10/3000)
Power consumption: Slow measuring rate: < 1.2 mA
Low battery warning:
!
-display and 'bAt '
Housing: impact-resistant ABS, membrane keyboard, transparent panel, Front side IP65
Dimensions: 142 x 71 x 26 mm (L x W x D) + metal pressure ports 11mm at top of device
Working temperature: 0...+50°C
Allowable rel. humidity: 0...95 % r.H. (not condensing)
Storage temperature: -20...+70°C
EMC: The MH3160-07 device corresponds to the essential protection ratings established
in the Regulations of the Council for the Approximation of Legislation for the
member countries regarding electromagnetic compatibility (89/336/EWG).
Additional fault: <1%