HBM K800 User manual

Operating Manual | Bedienungsanleitung
English Deutsch
K800
Calibration Unit
Kalibriergerät

Hottinger Baldwin Messtechnik GmbH
Im Tiefen See 45
D-64293 Darmstadt
Tel. [phone]
Fax [phone]
[email protected]
www.hbm.com
Mat.: 7-0102.0012
DVS: A01098_05_X00_00 HBM: public
07.2020
EHottinger Baldwin Messtechnik GmbH.
Subject to modifications.
All product descriptions are for general information only.
They are not to be understood as a guarantee of quality or
durability.
Änderungen vorbehalten.
Alle Angaben beschreiben unsere Produkte in allgemeiner
Form. Sie stellen keine Beschaffenheits- oder Haltbarkeits
garantie dar.

Operating Manual | Bedienungsanleitung
English Deutsch
K800
Calibration Unit
Kalibriergerät

2A01098_05_X00_00 HBM: public K800
English
1 Safety instructions 3........................................
2 Symbols used 7............................................
2.1 Symbols used in this manual 7................................
2.2 Symbols on the device 7......................................
3 Scope of supply 8..........................................
3.1 Option (not included in the scope of supply) 8...................
4 Field of application 9.......................................
5 Principle 10.................................................
6 Operation 12................................................
6.1 Connections 12...............................................
6.1.1 Connector elements on back of device 12........................
6.1.2 Pin assignment 13............................................
6.2 Digital controller 15...........................................
6.3 Device front panel 17..........................................
7 Calibrating a measuring amplifier 18..........................

Safety instructions
K800 A01098_05_X00_00 HBM: public 3
1 Safety instructions
Appropriate use
The K800 calibration unit must only be used to calibrate strain‐gauge bridge
measuring amplifiers. Use for any purpose other than the above shall be
deemed to be inappropriate. In the interests of safety, the device should only
be operated as described in the Operating Manuals. It is also essential to
comply with the legal and safety requirements for the application concerned
during use. The same applies to the use of accessories.
Each time, before starting up the equipment, you must first run a project
planning and risk analysis that takes into account all the safety aspects of
automation technology. This particularly concerns personal and machine
protection.
Additional safety precautions must be taken in plants where malfunctions could
cause major damage, loss of data or even personal injury. In the event of a
fault, these precautions establish safe operating conditions.
This can be done, for example, by mechanical interlocking, error signaling, limit
value switches, etc.
General dangers of failing to follow the safety instructions
The K800 is a state of the art unit and as such is reliable. The module may
give rise to dangers if it is inappropriately installed and operated by untrained
personnel.
Any person instructed to carry out installation, starting up, maintenance or
repair of the module must have read and understood the Operating Manual
and in particular the technical safety instructions.
Conditions on site
SProtect the device from direct contact with water.
SProtect the K800 from moisture and humidity or weather conditions such as
rain, snow.
SDo not expose the device to direct sunlight.

Safety instructions
4A01098_05_X00_00 HBM: public K800
SPlease observe the permissible maximum ambient temperatures and
humidity stated in the specifications.
SInstall the device so that it can be disconnected from the supply voltage at
any time without difficulty.
SIt is safe to operate the K800 up to a height of 2000 m.
Maintenance and cleaning
The K800 is maintenance-free.
SBefore cleaning, disconnect all connections.
SClean the housing with a soft, slightly damp (not wet!) cloth. You should
never use solvents, since these could damage the labeling.
SWhen cleaning, ensure that no liquid gets into the module or connections.
Residual dangers
The scope of supply and performance of the K800 only covers a small area of
measurement technology. In addition, equipment planners, installers and
operators should plan, implement and respond to the safety engineering
considerations of measurement technology in such a way as to minimize
remaining dangers. On-site regulations must be complied with at all times.
There must be reference to the remaining dangers connected with
measurement technology.
Product liability
In the following cases, the protection provided for the device may be adversely
affected. Liability for device functionality then passes to the operator:
SThe device is not used in accordance with the operating manual.
SThe device is used outside the field of application described in this Chapter.
SThe operator makes unauthorized changes to the device.

Safety instructions
K800 A01098_05_X00_00 HBM: public 5
Working safely
Notice
The device must not be directly connected to the DC voltage supply system.
Supply voltage 10 V … 15 V (DC).
The supply connection, as well as the signal and sense leads, must be
installed in such a way that electromagnetic interference does not adversely
affect module functionality (HBM recommendation: "Greenline shielding
design", downloadable from the Internet at http://www.hbm.com/Greenline).
Automation equipment and devices must be installed in such a way that
adequate protection or locking against unintentional actuation is provided (e.g.
access checks, password protection, etc.).
When devices are working in a network, these networks must be designed in
such a way that malfunctions in individual nodes can be detected and shut
down.
Safety precautions must be taken both in terms of hardware and software, so
that a line break or other interruptions to signal transmission, such as via the
bus interfaces, do not cause undefined states or loss of data in the automation
device.
Conversions and modifications
The device must not be modified from the design or safety engineering point of
view except with our express agreement. Any modification shall exclude all
liability on our part for any damage resulting therefrom.
In particular, any repair or soldering work on motherboards is prohibited. When
exchanging complete modules, use only original parts from HBM. The product
is delivered from the factory with a fixed hardware and software configuration.
Changes can only be made within the possibilities documented in the operating
manual.

Safety instructions
6A01098_05_X00_00 HBM: public K800
Qualified personnel
Qualified personnel means persons entrusted with the installation, assembly,
commissioning and operation of the product, who possess the appropriate
qualifications for their function.
This includes people who meet at least one of the three following requirements:
SKnowledge of the safety concepts of automation technology is a require
ment and, as project personnel, you must be familiar with these concepts.
SAs automation plant operating personnel, you have been instructed how to
handle the machinery. You are familiar with the operation of the equipment
and technologies described in this documentation.
SAs commissioning engineers or service engineers, you have successfully
completed the training to qualify you to repair the automation systems. You
are also authorized to activate, ground and label circuits and equipment in
accordance with safety engineering standards.
It is also essential to comply with the legal and safety requirements for the
application concerned during use. The same applies to the use of accessories.
The K800 must only be installed by qualified personnel, strictly in accordance
with the specifications and with the safety requirements and regulations listed
below.
Maintenance and repair work on an open device with the power on may only
be carried out by trained personnel who are aware of the dangers involved.

Symbols used
K800 A01098_05_X00_00 HBM: public 7
2 Symbols used
2.1 Symbols used in this manual
Important instructions for your safety are specifically identified. It is essential to
follow these instructions in order to prevent accidents and damage to property.
Symbol Meaning
Notice This marking draws your attention to a situation in
which failure to comply with safety requirements can
lead to damage to property.
Important
Important information
This draws your attention to important information
about the product or about handling the product.
2.2 Symbols on the device
Symbol Meaning
Statutory waste disposal mark
In accordance with national and local environmental
protection and material recovery and recycling regulations, old
modules that can no longer be used must be disposed of
separately and not with normal household garbage.
Statutory mark of compliance with emission limits in electronic
equipment supplied to China
CE mark
The CE mark is used by the manufacturer to declare that the
product complies with the requirements of the relevant EC
directives (the Declaration of Conformity can be found at
http://www.hbmdoc.com/en/industrial-amplifiers/

Scope of supply
8A01098_05_X00_00 HBM: public K800
3 Scope of supply
SCalibration unit K800 120 ohms
or K800 350 ohms
or K800 700 ohms
or K800 1000 ohms
S2 Connection cables, 3 m long, 25‐wire Order no.: 1-KAB263-3
SUSB‐ connection cable, 2 m long
SUSB power supply (Europlug)
SUSB power supply (NEMA-1)
SCD with driver software
SOperating Manual
3.1 Option (not included in the scope of supply)
DKD calibration certificate K-CAL-SD5

Field of application
K800 A01098_05_X00_00 HBM: public 9
4 Field of application
When measuring mechanical deformations electrically with strain gauge trans
ducers, it is interesting to know the precise correlation between the mechanical
quantity acting on the transducer and the corresponding electrical display at
the end of the measurement chain.
So instead of a strain gauge (S.G.) quarter bridge, a K800 calibration instru
ment can be used. This provides defined electrical resistances and for the
AP814Bi and AP815i MGCplus system connection boards, it simulates eight
single strain gauges simultaneously.
Each calibration instrument is designed for one specific calibration resistance
in a quarter‐bridge circuit.
Four different calibration instruments are available for :
S120 Ω
S350 Ω
S700 Ω
S1000 Ω
The particular calibration resistance of the device is specified on the front panel
below the designation K800.
The five calibration steps, corresponding to the effective strain of a strain
gauge, allow the measuring amplifier to be checked.
The calibration instrument can be operated via a USB interface or via a digital
control input with a computer or can be operated manually.
With an additional DKD calibration certificate, traceability is ensured.

Principle
10 A01098_05_X00_00 HBM: public K800
5 Principle
The calibration steps of the K800 represented the resistances.
AP814Bi/AP815i K800
-100%
-50%
0%
+50%
+100%
8 Channel 8 Channel
HBM uses the following equation for the detuned full bridge:
RCalib = RSGnom x(1 + 2 x detuning in V/V) / (1 - 2 x detuning in V/V)
For slight detuning and a gauge factor = 2, the following applies:
1 mV/V = 2000 μm/m = 100.4008 % RSGnom
This gives the following values for the 5 calibration steps for the 4 different
K800 types:

Principle
K800 A01098_05_X00_00 HBM: public 11
Calibration steps at 120
ohms (gauge factor=2)
Detuning Resistance
100 %
50 %
0 %
-50 %
-100 %
8 mV/V
4 mV/V
0 mV/V
-4 mV/V
-8 mV/V
16000 μm/m
8000 μm/m
0 μm/m
-8000 μm/m
- 16000 μm/m
123.9024 Ω
121.9355 Ω
120.0000 Ω
118.0952 Ω
116.2205 Ω
Calibration steps at 350
ohms (gauge factor=2)
100 %
50 %
0 %
-50 %
-100 %
8 mV/V
4 mV/V
0 mV/V
-4 mV/V
-8 mV/V
16000 μm/m
8000 μm/m
0 μm/m
-8000 μm/m
- 16000 μm/m
361.3821 Ω
355.6452 Ω
350.0000 Ω
344.4444 Ω
338.9764 Ω
Calibration steps at 700
ohms (gauge factor=2)
100 %
50 %
0 %
-50 %
-100 %
8 mV/V
4 mV/V
0 mV/V
-4 mV/V
-8 mV/V
16000 μm/m
8000 μm/m
0 μm/m
-8000 μm/m
- 16000 μm/m
722.764 Ω
711.290 Ω
700.000 Ω
688.889 Ω
677.953 Ω
Calibration steps at 1000
ohms (gauge factor=2)
100 %
50 %
0 %
-50 %
-100 %
8 mV/V
4 mV/V
0 mV/V
-4 mV/V
-8 mV/V
16000 μm/m
8000 μm/m
0 μm/m
-8000 μm/m
- 16000 μm/m
1032.520 Ω
1016.129 Ω
1000.000 Ω
984.127 Ω
968.504 Ω

Operation
12 A01098_05_X00_00 HBM: public K800
6 Operation
6.1 Connections
The K800 calibration instrument can be connected to the following MGCplus
measuring amplifier system connection boards:
AP814Bi, 8 measuring channels in a quarter‐bridge circuit using three‐wire
technique
and
AP815i, 8 measuring channels in a quarter‐bridge circuit using four‐wire tech
nique
6.1.1 Connector elements on back of device
Connection socket for the AP815i
Connection socket for the AP814Bi Connection socket for the digital controller
LED 1 LED 2
USB port for power supply/computer communication
Socket for external 12 V power supply (customer side, not included in scope of supply)
LED 1 yellow: Voltage supply via USB port OK
LED 2 green: USB connection to the PC is active

Operation
K800 A01098_05_X00_00 HBM: public 13
Notice
By use with the USB Port this a Class A product. In a domestic environment
this product may cause radio interference in which case the user may be re
quired to take adequate measures.
6.1.2 Pin assignment
Connection to the AP814Bi
The AP814Bi is connected by the 25‐pin 1-KAB263-3 cable to the AP814Bi
SUBCHANNEL 1...8 socket.
2
AP814Bi Subchannel 1...8 1
Excitation voltage (-)
Sense line (-)
Measurement signal (+),
Excitation voltage (+)
K800
Three‐wire connection
Cable shield
1
1
2
14
H
15
3 4 65
5
Ge
h.
7 8
Subchannel
Calibration
resistance
H = Housing
16
34
17
5
6
19
18
7
20
8
9
22
21
10
23
11
12
25
24
HHHHHHH
Fig. 6.1 Pin assignment for the AP814Bi: Channels 1 to 8
It is recommended that the cables included in the scope of supply are used.
Otherwise, asymmetric cable resistances can result in considerable zero devi
ations with the AP814Bi.
Connection to the AP815i
The AP815i is connected by two 25‐pin 1-KAB263-3 cables to the AP815i
SUBCHANNEL 1...4 and AP815i SUBCHANNEL 5...8 sockets.

Operation
14 A01098_05_X00_00 HBM: public K800
1
14
2
15
H
4
17
5
18
7
20
8
21
10
23
11
24
Subchannel
1
5
Subchannel
2
6
Subchannel
3
7
Subchannel
4
8
Excitation voltage (-)
Cable shield
Sense line (-)
Excitation voltage (+)
Measurement signal (+),
sense line (+)
K800
Calibration
resistance
AP815i Subchannel 1...4
AP815i Subchannel 5...8
Four‐wire connection
HHH
H = Housing
Fig. 6.2 Pin assignment for the AP815i: Channels 1 to 8
Voltage supply
The K800 can be powered in different ways:
Connector
USB power supply
(included in scope
of supply)
Front panel keyboard control
(stand‐alone operation) Without
data exchange
Power supply with USB
cable
LED1 LED2
Power supply via
USB port on PC
With/Without data exchange
Current required when USB port
connected: 120 mA
PC connector
External 12 V
power supply (not
included in scope
of supply)
Input: 100 - 250 VAC;
Output min. 200 mA
Control LED 1 yellow: Voltage supply OK
Control LED 2 green: USB link to the PC active

Operation
K800 A01098_05_X00_00 HBM: public 15
Important
If a USB power supply and an external power supply are connected, the exter
nal power supply has priority..
Ground
+VIN
1
2
3
41-pin socket, mini DIN*)
4
*)SELV circuit
(separated extra‐low voltage)
12
21
43
Fig. 6.3 Socket assignment 12V DC IN
6.2 Digital controller
The K800 can be driven either via a USB interface or via a digital input (it is not
possible to operate both interfaces simultaneously):
1. Driven via the USB port
Connect to the computer with a standard USB cable.
Obtain the driver software:
K800 demo CD or
download from www.hbm.com
If you are doing your own programming, you must send the PAP x command
(x as the decimal number of the bit pattern of the digital inputs; see below).
Example: PAP4 switches 0 % (data line D2)
2. Driven via the digital input (25‐pin 1:1 cable)

Operation
16 A01098_05_X00_00 HBM: public K800
PIN assignment:
PIN Data line
2 D0
3 D1
4 D2
5 D3
6 D4
7 D5
8 D6
19, 20, 21, 22, 23, 24, 25 GND
Data line coding via the parallel port:
Step Data line
D0 D1 D2 D3 D4
100 % HLLLL
50 % L H L L L
0 % L L H L L
-50 % L L L H L
-100 % LLLLH
Data line Data line
Signal generator D5 LED Ready D6
ON HON H
OFF LOFF L

Operation
K800 A01098_05_X00_00 HBM: public 17
6.3 Device front panel
Display
The K800 displays its current operating state by means of status LEDs.
Active detuning is indicated by the 5 yellow LEDs.
Only one status LED can be active at a time; if a number of LEDs are on, there
is a fault.
LED 1 (POWER) lights up green when the power supply is on.
LED 2 (READY) and a signal generator can be software‐driven in computer
operation1).
Setting
The five calibration steps can be set manually for all eight measuring channels
in parallel using the step switch.
In the REMOTE setting, digital control is possible (see Section 6.2).
Step switch Status LEDs for the 5 calibration steps
LED 2
LED 1
1) If the signal tone causes interference, switch to manual mode: step switch not at REMOTE

Calibrating a measuring amplifier
18 A01098_05_X00_00 HBM: public K800
7 Calibrating a measuring amplifier
1. Connect the USB power supply (use enclosed USB connection cable), PC
or external power supply to the K800.
USB‐Nr.
USBHBM1264
USB port for power supply/computer
communication Socket for external 12 V power supply (customer
side, not included in scope of supply)
2. Connect the K800 instead of the S.G. quarter bridge to the MGCplus with
the 1-KAB263-3 connection cable (one cable for the AP814Bi, two cables
for the AP815i).
3. At the MGCplus, make the required settings for the calibration in accor
dance with the Operating Manual.
4. Set the chosen detuning range at the step switch.
Set the step switch to 0% (the yellow status LED 0% lights up) and check the
zero point of the amplifier. Any variations from zero can be adjusted at the
MGCplus.