Kobold HND-P215 User manual

Operating Instructions
for
Manual Pressure Measuring Devices with
External and Integrated Pressure
Sensors
Model: HND-P215

HND-P215
page 2 HND-P215 K06/0422
1. Contents
1.Contents ....................................................................................................... 2
2.Note .............................................................................................................. 3
3.Instrument Inspection ................................................................................... 3
4.Regulation Use ............................................................................................. 3
5.Operating Principle ....................................................................................... 4
6.Electrical Connection .................................................................................... 4
6.1Mains Operation with Power Supply ................................................... 4
7.Operation / Configuration / Adjustments ....................................................... 5
7.1General ............................................................................................... 5
7.2Connections ........................................................................................ 5
7.3Pop-up clip .......................................................................................... 6
7.4Display ................................................................................................ 7
7.5Basic Operation ................................................................................... 7
7.6Operation ............................................................................................ 8
7.7Configuration ....................................................................................... 8
7.8Operation Of Logger ......................................................................... 12
8.Output ......................................................................................................... 15
8.1The Serial Interface ........................................................................... 15
8.2Analogue Output – Scaling with DAC.0 and DAC.1 .......................... 17
8.3Instrument Adjustment ...................................................................... 17
8.4Pressure Connection to the Sensors ................................................. 18
8.5Relative Pressure Sensors (Types: HND-PS01…-PS05, HND-PS09)18
8.6Error and System Messages ............................................................. 19
8.7Calibration Services .......................................................................... 20
9.Maintenance ............................................................................................... 20
9.1Battery Operation .............................................................................. 20
10.Technical Information ................................................................................. 20
11.Order Codes ............................................................................................... 21
11.1Pressure sensors .............................................................................. 22
11.2Accessories ....................................................................................... 23
12.EU Declaration of Conformance ................................................................. 24
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.kobold.com

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HND-P215 K06/0422 page 3
2. Note
Please read these operating instructions before unpacking and putting the unit into
operation. Follow the instructions precisely as described herein.
The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you
have purchased. If you need an instruction manual that corresponds to the
purchased product version, you can request it from us free of charge by email
([email protected]) in PDF format, specifying the relevant invoice number and
serial number. If you wish, the operating instructions can also be sent to you by
post in paper form against an applicable postage fee.
The devices are only to be used, maintained and serviced by persons familiar with
these operating instructions and in accordance with local regulations applying to
Health & Safety and prevention of accidents.
When used in machines, the measuring unit should be used only when the
machines fulfill the EG-machine guidelines.
3. Instrument Inspection
Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of the
delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
The standard delivery includes:
 Manual Pressure Measuring Devices with External and Integrated Pressure
Sensors model: HND-P215
4. Regulation Use
Any use of the Manual Pressure Measuring Devices with External and Integrated
Pressure Sensors, model: HND-P215, which exceeds the manufacturer’s
specification may invalidate its warranty. Therefore, any resulting damage is not the
responsibility of the manufacturer. The user assumes all risk for such usage.

HND-P215
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5. Operating Principle
The KOBOLD manual pressure measuring devices HND-P215 are highly precise,
compact pressure measuring devices that can be used universally. In conjunction
with the appropriate external pressure sensors, precise measurement results over
the entire measuring range can be achieved.
Various pressure sensors are available for a multitude of measuring tasks and
special applications. The respective measurement task determines which
combination is selected. Naturally, these first-rate KOBOLD-measuring units can
display more than just pressure. All devices in this series allow for
minimum/maximum value memory, hold function, automatic self-shut-off, or zero
point offset entry for all connected pressure sensors, for example. The HND-P215
type also has a logger function, a peak value memory, or a minimum/maximum
alarm. A special characteristic of the type HND-P215 is the possibility of connecting
two external pressure sensors.
6. Electrical Connection
6.1 Mains Operation with Power Supply
Warning: When using a power supply please note that operating
voltage has to be 10.5 to 12 VDC. Do not apply overvoltage!! Cheap
12 V-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 HND-
Z002. 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.

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HND-P215 K06/0422 page 5
7. Operation / Configuration / Adjustments
7.1 General
7.1.1 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 10 Technical Information.
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. When connecting the device to other devices the connection has to be
designed most thoroughly as internal connections in third-party devices (e.g.
connection GND with protective earth) may lead to undesired voltage
potentials that can lead to malfunctions or destroying of the device and the
connected devices.
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.
7.2 Connections
Connections for pressure sensors of the HND-PS-family
(p.r.t. chapter 8)
Interface: Connection for el. isolated interface adapter (p.r.t.
chapter 8.1 The Serial Interface)
The mains adapter socket is located at the left side of the device.

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page 6 HND-P215 K06/0422
7.3 Pop-up clip
Handling:
 Pull at label “open” in order to swing open the pop-up clip.
 Pull at label “open” again to swing open the pop-up clip further.
Function:
 The device with a closed pop-up clip can be plainly laid onto a table or
attached to a belt, etc.
 The device with pop-up clip at position 90° can be set up on a table, etc.
 The device with pop-up clip at position 180° can be suspended from a screw
or the magnetic holder.

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HND-P215 K06/0422 page 7
7.4 Display
7.5 Basic Operation
Please Note: Activating/deactivating tara clears the max- & min-memories.
1) Zero-Point Adjustment: If there is no pressure or zero-pressure (absolute)
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 button 3 for
approx. 5 seconds (Auto Null will be displayed shortly). The adjustment is done via
the OFFSET-value of the sensor
(referring configuration menu).
To recall the manufacturer’s calibration press button 3 for approx. 15 seconds.
Please note: - A zero-point adjustment can only be carried out if the difference
between the values on display is less than 500 digits!

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- If a zero point adjustment was carried out the display shows ”Corr” after a restart .
7.6 Operation
Connect sensor, turn on device via key.
After segment test the device displays some configuration:
If the logger function is not off the time of the integrated clock will shortly be
displayed.
If a zero point adjustment was carried out the display shows shortly „nuLL Corr“.
After changing the battery the clock-setting menu is activated automatically
(‚CLOC‘). Check the clock and adjust, if necessary (p.r.t. chapter 7.7). After that the
device is ready for measuring.
7.7 Configuration
To change device settings, press Menu (key 4) for 2 seconds. This will activate the
configuration menu (main display: „SEt“).
Pressing key Menu changes between the menus, pressing (key 3) jumps to the
referring parameters, which can be selected with key (key 3).
The parameters can be changed with  (key 2) or  (key 5).
Pressing Menu again jumps back to the main configuration menu and saves the
settings.
Quit (key 6) finishes the configuration and returns to standard measuring operation.
Menu Paramete
r
Values Meaning
KEY
Menu
KEY

KEY
 or 
SEt
ConF
Set Configuration: Generic Configurations
Unit mbar,bar.. Unit: Unit of display (given by sensor 1 when using 2
sensors)
*,**
SL oFF/on Sea level correction: on or off (only for Sensor 1) *,**
Alti -2000..9999 Altitude above sea level [m] (only for Sensor1 and if SL ) *,**
rAtE Rate: Measuring rate (p.r.t. chapter 7.7.1) *
Slo Slow measuring rate (4 Hz filtered, low power consumption) *
FASt Fast measuring rate, filtered (>1000Hz) *
P.dEt Peak detection: fast measuring rate, unfiltered (>1000Hz) *
t.AVG 1-120 Averaging period in seconds, used by the averaging function
oFF Averaging function deactivated
P.oFF 1-120 Auto Power Off time in minutes
oFF Auto Power Off deactivated
Out oFF Function of the output: No output function, lowest power
consumption
Ser Output is serial interface
dAC Output is analogue output 0…1 V

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HND-P215 K06/0422 page 9
(*) This menu can only be invoked if the logger memory contains no data! If parameter
should be changed the logger memory has to be cleared before! (key 6, p.r.t. 7.8
Operation Of Logger)
Menu Parameter Values Meaning
KEY
Menu
KEY

KEY
or 
SEt
ConF
Set Configuration: Generic Configurations
Adr. 01,11..91 Base address of interface (if Out=Ser)
dAC. CH1, CH2,
or CH DIF Choice of the input to be the source for the analogue output
(if Out=dAC)
dAC.0 eg.
-5.00..5.00 mbar Enter desired value at which the analogue output potential
should be 0 V (if Out=dAC)
dAC.1 eg.
-5.00…5.00 mbar Enter desired value at which the analogue output potential
should be 1 V (if Out=dAC)
SEt
CAL
Set Calibration: Adjustment of Sensors
OFS.1 Sensordep., e.g.
-5.00…5.00 mbar The offset of sensor 1 will be displaced by this value to
compensate for deviations in the probe or in the measuring
device.
OFF Zero displacement is inactive (=0.0°)
SCL.1 -2.000…2.000 The measuring scale of sensor 1 will be changed by this
factor [%] to compensate deviations of temperature probe or
measuring device.
OFF Scale correction factor inactive (=0.000)
OFS.2 Sensordep., e.g.
-5.00…5.00 mbar The offset of sensor 2 will be displaced by this value to
compensate for deviations in the probe or in the measuring
device.
oFF Zero displacement inactive (=0.0°)
SCL.2 -2.000…2.000 The measuring scale of sensor 2 will be changed by this
factor [%] to compensate deviations of temperature probe or
measuring device.
oFF Scale correction factor inactive (=0.000)
SEt
AL.
Set Alarm: Settings Of Alarm Function
AL. 1 On
A
larm sensor 1 on, with buzzer sound
no.So Alarm sensor 1 on, without buzzer sound
oFF no alarm function for sensor 1
AL.Lo/AL.1 Sensor1-Min...
AL.1-Hi Min alarm rail Sensor 1 (not when AL.1 oFF)
Sensor1-Min is the lower display range of sensor 1
AL.Hi/AL.1 AL.1-Lo...
Sensor1-Max Max alarm rail Sensor 1 (not when AL.1 oFF)
Sensor1-Max is the upper display range of sensor 1
AL. 2 On Alarm sensor 2 on, with buzzer sound
no.So Alarm sensor 2 on, without buzzer sound
oFF no alarm function for sensor 2
AL.Lo/AL.2 Sensor2-
Min...AL.2-Hi Min alarm rail Sensor 2 (not when AL.2 oFF)
Sensor2-Min is the lower display range of sensor 2
AL.Hi/AL.2 AL.2-Lo...
Sensor2-Max Max alarm rail Sensor 2 (not when AL.2 oFF)
Sensor2-Max is the upper display range of sensor 2
AL.DIF On Alarm sensor difference on, with buzzer sound
no.So Alarm sensor difference on, without buzzer sound
oFF no alarm function for sensor difference
AL.Lo DIF -19999..AL.DIF-
Hi Min alarm rail of difference (not when AL.DIF oFF)
AL.Hi DIF AL.DIF-Lo..19999 Max alarm rail of difference (not when AL.DIF oFF)
SEt
LoGG
Set Logger: Configuration Of Logger Function *
Func CYCL Cyclic: logger function ‚cyclic logger‘ *
Stor Store: logger function ‚individual value logger‘ *
oFF no logger function *
CYCL 1..3600 Cycle time of cyclic logger [seconds] *
Lo.Po on/oFF Low-power logger with very low power consumption
(only for cyclic logger and slow measuring rate)
*
SEt
CLOC
Set Clock: Setting Of Real Time Clock
CLOC HH:MM Clock: Setting of time hours:minutes
dAtE TT.MM Date: day.month
YEAr YYYY Yea
r

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(**) This menu can only be invoked if a referring sensor is connected to connection 1.
When using a second referring sensor at connection 2 then changes are taken over.
Note: When using the logger function some settings in the menu may not be accessible (*).
If these settings should be changed, the logger has to be stopped before, eventually the
logger data has to be cleared. (p.r.t. chapter 7.8)
7.7.1 Different Kinds Of Measuring: „rAtE-Slo, -P.dEt, -FASt“
Three different kinds of measuring pressure are supported. Two of them (P.dEt and
FASt) are working with high measuring frequency of more than 1000 measurings
per second.
7.7.1.1 rAtE-Slo: Standard Measuring
Measuring rate 4 Hz, averaging and filter functions are active.
Application: Measuring of slowly changing or static pressures, e.g. measuring of
leakproofness, athmospheric pressure... Highest accuracy, high noise immunity
(EMI and unstable measuring signals), low power consumption.
7.7.1.2 rAtE-P.dEt: Peak detection
Measuring rate >1000 Hz, the value is displayed unfiltered.
Application with logger function: Measuring of short pressure peaks or fast
changing pressures with a resolution of < 1 ms. The cyclic logger function records
the arithmetic mean value, the highest and the lowest peak of the refering time
interval. Attention: higher power consumption, measuring is sensitive to noise
(EMI,..).
7.7.1.3 rAtE-FASt: Fast filtered measuring
Measuring rate >1000 Hz, the value is filtered slighlty (higher noise immunity than
P.dEt, small peaks will be filtered out), apart from that identical behaviour like P.dEt.
7.7.2 Measuring Of Water Level – Display Unit [m]
When using suitable waterproof pressure sensors the unit [m] for meters of water
can be set in the menu “Unit“. 10 m of water are roughly 1 bar over pressure.
Measurings can be made e.g. like described below:
 With one abs. pressure sensor (SL oFF!): Press ‚Tara‘ when sensor is at ambient
air and then bring sensor to the depth to be measured. The display shows now
the depth in [m].
 With two abs. pressure sensors (SL oFF!): Sensor 2 at ambient air (does not
have to be waterproof), waterproof sensor 1 at water depth to be measured.
Don’t press ‚Tara‘, the depth can already read from the DIF-display and is
compensated for pressure changes in ambient air.
 With one rel pressure sensor: bring tube connection for lower press. in contact to
ambient air by means of a tube (no water contact!) and bring the sensor with its
open press. connection for higher pressure to water depth to be measured
(display and is compensated for pressure changes in ambient air).

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HND-P215 K06/0422 page 11
7.7.3 Sea Level Correction for Absolute Pressure Sensors
The device displays the absolute pressure. This is not necessarily the same like the
values given by weather stations! The weather stations‘ values are giving the
pressure at sea level. Usually, the sensor is placed above sea level and therefore,
if the value at sea level (zero) is to be measured, the pressure loss resulting from
the actual level above sea level has to be considered! To correct the measuring
display activate the „Sea-Level-Function“ (SL, p.r.t. chapter 7.7 Configuration,
setting is only possible, if the abs. pressure sensor is connected to sensor socket
1). Then enter the altitude above sea level of the sensor‘s location in meters (Alti,
p.r.t. chapter 7.7 Configuration). When activated, the display shows the SL-arrow
and the device displays the pressure value at sea level.
Please note: When two absolute pressure sensors are connected,
the sea level function for both is corresponding to the setting of
sensor 1
7.7.4 Averaging Function
The averaging function concerns the display values (LCD and interface). It is
completely independent from the averaging of the logger function, please don’t mix
them up!
The averaging integrates the measuring values during a selectable period of time
and then calculates the average display value. It is independent from the selected
kind of measuring (slow, fast, peak detect).
As long as not enough values are collected (selected averaging time) to calculate a
average value, the upper display shows “----“, the lower display a ‘countdown‘.
During an active low-power-logging procedure the averring is always deactivated
Function of min/max-value memory during averaging:
- If averaging is activated and slow measuring is selected (rAtE-Slo), the min-/max-
value memory refers to the average display value.
- If averaging is activated and fast measuring is selected (rAtE-FASt or P.dEt) , the
min-/max-value memory refers to the internal measured values (fast peaks can be
detected). (>1000 Hz)
7.7.5 Power Off Time
If there won’t be pressed any key and no interface communication takes place for
the time of the power off time setting (P.Off), the device will be switched off
automatically to save battery power. If P.oFF = oFF then the automatic switch off is
deactivated.
7.7.6 Alarm
3 possible settings per channel: Alarm off (AL.oFF), on with horn sound (AL.on), on
without horn (AL.no.So). Following conditions will display an alarm, when the
function is activated (on or no.So):
 Value is below lower (AL. Lo) or above upper alarm rail (AL.Hi).
 Sensor error (Sens Erro)
 Low battery (bAt)
 Fe 7: System error (always with sound)
In case of an alarm and when polling the interface, the prio-flag is set in the
returned interface message.

HND-P215
page 12 HND-P215 K06/0422
If the horn sound of one channel will be switched on/off (on or no.So), then this horn
sound setting will automatically be copied to the other activated channels.
7.7.7 Real Time Clock
The real time clock is used for the logger function: Recorded values are also
containing the point of time, when they were measured. Please check the settings
when necessary.
If the battery was replaced the referring menu ‚CLOC‘ will automatically be started.
7.8 Operation Of Logger
The device supports two different logger functions:
„Func-Stor“: each time when „store“ (key 6) is pressed a measurement will
be recorded.
„Func-CYCL“: measurements will automatically be recorded each interval,
which was set in the logger
menu ‚CYCL‘ until the logger will be stopped or the logger
memory is full. The recording is started by pressing „Store“
2 seconds.
The logger records 3 measurement results each time:
current or mean value (depending on logger setting, see below), min peak and
max peak of sensor 1
current or mean value (depending on logger setting, see below), min peak and
max peak of sensor 2
current or mean value (dep. on logger setting), min peak and max peak of sensor
1 - sensor 2
Min and max peak are the minimum resp. the maximum of the measured values
since the last recording. Using them allows f.e. analysis of fluctuating pressures.
For the evaluation of the data the software HND-Z034 has to be used. The software
also allows easy configuration and starting of the logger. When the logger is
activated (Func Stor or Func CYCL) the hold function is no more available, the key
6 is solely used for the operation of the logger functions.
Please note: When reading out loggerdata either the sensor
connected during logging or no sensor should be connected.
Otherwise, the measuring unit of the data may be corrupted.
7.8.1 „Func-Stor“: Storing Single Measurements
Each time when „store“ (key 6) is pressed a measurement and its time stamp will
be recorded. The recorded data can be viewed either in the display (when calling
the configuration an additional menu „REAd LoGG“ is displayed, see below) or by
means of the interface and a PC with HND-Z034-software.
Max. number of measurings: 99
A measuring contains: - sensor 1, current measuring value at the time of recording
- sensor 1, min peak since the last recording
- sensor 1, max peak since the last recording
- sensor 2, current measuring value at the time of recording
- sensor 2, min peak since the last recording

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HND-P215 K06/0422 page 13
- sensor 2, max peak since the last recording
- difference sensor 1 - sensor 2, current measuring value at
time of recording
- difference sensor 1 - sensor 2, min peak since the last
recording
- difference sensor 1 - sensor 2, max peak since the last
recording
- time and date of the recording
After each recording „St. XX“ will be displayed for a short time. XX represents the
number of the recording.
If logger memory contains recordings already:
When „Store“ is pressed for 2 seconds, the choice for clearing the logger memory
will be displayed:
The selection can be made by  (key 2) and  (key 5). "Quit" (key 6) enters the
choice.
If the logger memory is full, the display will show:
Viewing Recorded Measurings
Within the „LoGG Stor“ function the measurings can be viewed directly in the
display not only by means of a computer (like at „Func CYCL“): press 2 seconds
„Set“ (key 4): The first menu displayed now is „rEAd LoGG“ (read logger data). After
pressing  (key 3) the measurement recorded last will be displayed, changing
between the different values refering to the measurement also is done by pressing
.
Changing the measurement is done by pressing the keys  or .
7.8.2 „Func-CYCL“: Automatic Recording With Selectable Logger-Cycle-
Time
The Logger-Cycle-Time is setable (p.r.t. 7.7 Configuration). For example „CYCL“ =
60: A measuring is recorded after each 60 seconds.
When the slow measurement "rAtE-Slo" is chosen, additionaly a low power function
is available: „Lo.Po“.
If „Lo.Po“ is on, the device only will take a measurement at the point of time of the
recording. In between the recordings the measuring shut’s down. This decreases
the power consumption enormously and therefore is recommended e.g. for long
time recordings where no mains adapter is available.
Max. number of measurings: 4000
Cycle time: 1...3600 seconds (=1h), selectable in the configuration
Clear all
recordings
Clear the last
recording
Clear nothing
(
cancel menu
)

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A measuring contains:
slow measuring rate (rAtE Slo):
- sensor 1, current measuring value at the time of recording
- sensor 1, min peak, max peak since the last recording
- sensor 2, current measuring value at the time of recording
- sensor 2, min peak, max peak since the last recording
- difference sensor 1 – sensor 2, current measuring value at time of recording
- difference sensor 1 – sensor 2, min peak, max peak since the last recording
fast measuring rates (rAtE FASt,P.dEt):
- sensor 1, arithmetic mean value since the last recording
- sensor 1 min peak, max peak since the last recording
- sensor 2, arithmetic mean value since the last recording
- sensor 2 min peak, max peak since the last recording
- difference sensor 1 – sensor 2, arithmetic mean value since the last recording
- difference sensor 1 – sensor 2, min peak, max peak since the last recording
Starting a recording:
By pressing "Store" (key 6) for 2 seconds the recording will be initiated. After that
the display shows ‘St.XXXX‘ for a short time whenever a measuring is recorded.
XXXX is the number of the measuring 1..4000.
If the logger memory is full, the display will show:
The recording automatically will be stopped.
If Low-Power-Logger-Function „Lo.Po = on“ the device switches itself off as soon as
the memory gets filled.
Stopping the recording manually:
By pressing "Store" (key 6) the recording can be stopped manually. Then the
following choice appears:
The selection can be made by  (key 2) and  (key 5). "Quit" (key 6) enters the
choice.
Note: If you try to switch off the instrument in the cyclic recording
operation you will be asked once again if the recording is to be
stopped. The device can only be switched off after the recording
has been stopped! The Auto-Power-Off-function is deactivated
during recording!
Stop the
recording
Do not stop the
recording

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HND-P215 K06/0422 page 15
Clear Recordings:
When „Store“ is pressed for 2 seconds, the logger operation will be called:
By pressing the keys (key 2) or The display wil show:
(key 5) the display will change to
When „Store“ is pressed, the choice for clearing the logger memory will be
displayed:
The selection can be made by  (key 2) and  (key 5). "Quit" (key 6) enters the
choice.
8. Output
The output can be used as serial interface (HND-Z031 or HND-Z032 interface
adapters) or as analog output (0-1V).
If none of both is needed, we suggest to switch the output off, because battery life
then is extended.
8.1 The Serial Interface
By means of the serial interface and a suitable electrically isolated interface adapter
(HND-Z031) the device can be connected to a computer for data transfer. To avoid
transmission errors, there are several security checks implemented e.g. CRC.
The following standard software packages are available:
HND-Z034: Operation and read out of logger function, data display in
diagrams and tables
BUS-S20M: 20-channel software to display the measuring values
Clear all
recordings
Clear the last
recording sequence
Clear nothing
(
cancel menu
)

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page 16 HND-P215 K06/0422
The device has 9 channels:
- Channel 1: sensor 1 current measuring value (base address)
- Channel 2: sensor 1 min peak (p.r.t. 7.8 Operation Of Logger)
- Channel 3: sensor 1 max peak (p.r.t. 7.8 Operation Of Logger)
- Channel 4: sensor 2 current measuring value (base address)
- Channel 5: sensor 2 min peak (p.r.t. 7.8 Operation Of Logger)
- Channel 6: sensor 2 max peak (p.r.t. 7.8 Operation Of Logger)
- Channel 7: difference sensor 1 – sensor 2 current measuring
value (base address)
- Channel 8: difference sensor 1 – sensor 2 min peak (p.r.t.
chapter 7.8 Operation Of Logger)
- Channel 9: difference sensor 1 – sensor 2 sensor 1 max peak
(p.r.t. chapter 7.8 Operation Of Logger)
Note: The measuring-/ alarm- and display range values read back
from the interface are always in the selected measurement unit
(mbar, bar...)!
Supported functions:
Channel Code Name/Function Channel Code Name/Function
1 4,
7
2,3,5
6,8,9 1 4, 7
2,3,5
6,8,9
x x x 0 Read measurement value x 208 Read # of channels
x x x 3 Read s
y
stem state x 222 Read power off time
(
Conf-P.oFF
)
x 12 Read ID number x 223 Set power off time
(
Conf-P.oFF
)
x 22 Read min alarm rail
(
AL. -
A
L.Lo
)
x x x 224 Lo
gg
er: Read data of CYCL- Lo
gg
er
x 23 Read max alarm rail
(
AL. -
A
L.Hi
)
x 225 Lo
gg
er: Read c
y
cle time
(
LoGG - CYCL
)
x 32 Read configuration flag
BitPeakDetection:33; BitFastFiltered:34;
BitLoggerOn:50; BitCyclicLogger:51;
BitLowPowerLogger:52
x 226 Lo
gg
er: set c
y
cle time
(
LoGG - CYCL
)
x 227 Lo
gg
er: start recordin
g
x 228 Logger: Read # of recordings made
x 229 Logger: Read state
x 231 Lo
gg
er: Read stop time
x 160 Set confi
g
uration fla
g
(
refer to 32
)
x 233 Read real time clock
(
CLOC
)
x x x 176 Read min measurin
g
ran
g
e x 234 Set real time clock
(
CLOC
)
x x x 177 Read max measurin
g
ran
g
e x 236 Read lo
gg
er memor
y
size
x x x 178 Read measurin
g
ran
g
e uni
t
x 237 Read lo
gg
er filecoun
t
x x x 179 Read measurin
g
ran
g
e decimal poin
t
x 238 Read lo
gg
er filepointer
x x x 180 Read kind of measurin
g
of sensor x 239 Read lo
gg
er file info
x 240 Rese
t
x x x 199 Read kind of measurin
g
of displa
y
x 254 Pro
g
ram version
x x x 200 Read min displa
y
ran
g
e x 260 Lo
gg
er: read data of STOR Lo
gg
er
x x x 201 Read max displa
y
ran
g
e x x x 263 Read lo
gg
er channel info
x x x 202 Read displa
y
ran
g
e - uni
t
x x x 204 Read displa
y
ran
g
e
–
decimal poin
t

HND-P215
HND-P215 K06/0422 page 17
8.2 Analogue Output – Scaling with DAC.0 and DAC.1
Note: Analogue output cannot be used during logger recordings
With the DAC.0 and DAC.1 value the output can be rapidly scaled to your efforts.
Keep in mind not to connect low-resistive loads to the output, otherwise the output
value will be wrong and battery life is decreased. Loads above ca 10kOhm are
uncritical.
If the display exceeds the value set by DAC.1, then the device will apply 1V to the
output
If the display falls below the value set by DAC.0, then the device will apply 0V to the
output
In case of an error (Err.1, Err.2, no sensor, etc.) the device will apply slightly above
1V to the output.
plug wiring:
8.3 Instrument Adjustment
8.3.1 Zero Displacement Sensor 1 ('OFS.1') and Sensor 2 ('OFS.2')
A zero displacement can be carried out for the measured value:
value displayed = value measured - offset
Standard setting: 'off' = 0.0°, i.e. no zero displacement will be carried out. Together
with the scale correction (see below) this factor is mainly used to compensate for
sensor deviations. Input is in the display unit.
8.3.2 Scale Correction Sensor 1 ('SCL.1') and Sensor 2 ('SCL.2')
The scale of the measuring can be influenced by this setting (factor is in %):
displayed value = measured value * (1+Scal/100)
Standard setting: 'off' =0.000, i.e. value is not corrected. Together with the zero
displacement (see above) this factor is mainly used to compensate for sensor
deviations.
Attention!
the 3rd contact has to be left floating!
Onl
y
stereo plu
g
s are allowed!

HND-P215
page 18 HND-P215 K06/0422
8.4 Pressure Connection to the Sensors
The device is designed to be connected to the sensors of the HND-PS...-series
without a new calibration being necessary. Therefore, a great variety of replaceable
sensors of e.g. –1.999...2.500 mbar relative up to 0...1000 bar absolute pressure
can be connected to the device.
8.5 Relative Pressure Sensors (Types: HND-PS01…-PS05, HND-
PS09)
 For measurements of over- or under pressure:
Connect plastic tube with internal dia of 4 mm to pressure port "B". Port "A" is not
used!
 For measurements of under pressure: (with higher negative measuring
range)
Connect plastic tube with internal dia of 4 mm to pressure port "B". Port "A" will not
be used!
Pressure sensors HND-PS01, HND-PS02 and HND-PS03 allow for measurements
of under pressure up to the entire over pressure measuring range by re-plugging
the tube to pressure port "A". Please note that all values are displayed as positive
values. No minus sign will be shown. (Example for HND-PS02: For tube connection
"B" the measuring range covers -19.99 to 25.00 mbar. If you replug to port "A"
under pressure measurements down to -25.00 mbar could be carried out with the
display showing the value 25.00 (no minus sign).
Note: All values are displayed now as positive values. No minus sign will be
shown. Example: it is possible to measure under pressure down to -
25.00 mbar, the display shows then the value 25.00 (no minus sign).
For measurements of differential pressure:
Connect both plastic tubes with an internal dia of 4 mm to pressure port "B" and
"A"; make sure to apply higher pressure to port "B".
Stainless steel pressure sensors: (types: HND-PS01…-PS30)
For measurements of over-, under- or absolute pressure screw sensor to G1/4"
pressure terminal or plug plastic tube to a suitable adapter.
Measurements of differential pressure with two sensors
By means of the calculation sensor 1 – sensor 2 (DIF) press. differences of any
sensor combinations can be measured.

HND-P215
HND-P215 K06/0422 page 19
8.6 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
or Err.9
No sensor connected Switch off device and connect senso
r
Connected sensor or device defective If 2nd sensor available, check if device is ok.
Return defective device/sensor to manufacturer
for repai
r
Value extremely out of measuring range Check: pressure not within sensor range?
No display or
confused
characters,
device does not
react on
keypress
Battery empty Replace battery
Mains operation: wrong voltage or polarity Check power supply, replace it when
necessary
System error Disconnect battery and power supplies, wait
shortly, then reconnect
Device defective Return to manufacturer for repai
r
Err.1 Measured value above allowable range Check: pressure not within sensor range?
-> measuring value to high!
Sensor defective Return to manufacturer for repai
r
Err.2 Measured value below allowable range Check: pressure not within sensor range?
-> measuring value to low!
Sensor defective Return to manufacturer for repai
r
Err.3 Display range overflow Check: value above 19999 -> to high to be
displayed!
Err.4 Display range underflow Check: value below 19999 (Tara?) -> to low!
Er.11 Value could not be calculated Choose different unit
Calculation overflow happened Choose different unit
Err.7 System error Return to manufacturer for repair
---- Sensor not present/recognized Reconnect sensor,
During logging: stop the logger and restart it
Could not calculate value Suitable sensor/unit combination necessary

HND-P215
page 20 HND-P215 K06/0422
8.7 Calibration Services
Calibration certificates – DKD-certificates – other certificates:
If device should be certificated for its accuracy, it is the best solution to return it with
the referring sensors to the manufacturer.
Only the manufacturer is capable to do efficient recalibration, if necessary, to get
results of highest accuracy!
9. Maintenance
9.1 Battery Operation
If ´bAt´ is shown in the lower display the battery has been used up and needs to be
replaced. However, the device will operate correctly for a certain 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: The battery has to be taken out, when storing device
above 50 °C. We recommend taking out battery if device is not used
for a longer period of time! After recommissioning the real time
clock has to be set again.
10. Technical Information
Measurement input: for pressure sensor HND-PS
Measuring range: depending upon the pressure sensor
Accuracy: ± 0.1 % F.S. ± 1 Digit
(at nominal temperature 25 °C)
Resolution: depending upon the sensor
Display range: -19999 ... +19999
Operating temperat.: -25 to +50 °C
Storage temperat.: -25 to +70 °C
Storage humidity: 0 to 95% r.H. (non-condensing)
Probe connection: 6-pin shielded Mini-DIN plug,
autom. sensor recognition, and measuring range
adjustment
Output: 3.5mm audio plug, stereo
Output function: selectable as serial interface or analog output
Interface: Serial interface (3.5mm jack) can be connected
to USB or RS232 interface of a PC via electrically
isolated interface adapter,
HND-Z031 or HND-Z032 (see accessories)
Analog output: 0…1 Volt, freely scaleable (resolution 12 bit)