KERN PNJ 600-3M User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instructions
Precision balances
KERN PNJ / PNS
Version 1.3
2017-11
GB
PNJ_PNS-BA-e-1713

2 PNJ_PNS-BA-e-1713
GB
KERN PNJ / PNS
Version 1.32017-11
Operating instructions
Precision balance
Contents
1Technical data................................................................................................ 4
1.1 Dimensions................................................................................................................................. 6
2Appliance overview ....................................................................................... 7
2.1 Keyboard overview..................................................................................................................... 8
2.2 Overview of display .................................................................................................................... 9
3Basic instructions........................................................................................ 10
3.1 Intended use............................................................................................................................. 10
3.2 Improper Use............................................................................................................................ 10
3.3 Warranty................................................................................................................................... 10
3.4 Monitoring of Test Resources................................................................................................... 11
4Basic Safety Precautions............................................................................ 11
4.1 Pay attention to the instructions in the Operation Manual........................................................ 11
4.2 Personnel training..................................................................................................................... 11
5Transport and storage................................................................................. 11
5.1 Testing upon acceptance ......................................................................................................... 11
5.2 Packaging / return transport..................................................................................................... 11
6Unpacking, Setup and Commissioning ..................................................... 12
6.1 Installation Site, Location of Use.............................................................................................. 12
6.2 Unpacking, Scope of delivery................................................................................................... 12
6.2.1 Scope of delivery / serial accessories:..................................................................................... 13
6.3 Assemble windshield (only models d = 0.001g)....................................................................... 14
6.4 Assembly, placing and levelling ............................................................................................... 20
6.5 Mains connection...................................................................................................................... 22
6.6 Initial Commissioning................................................................................................................ 23
6.6.1 Models PNJ .............................................................................................................................. 23
6.6.2 Models PNS.............................................................................................................................. 24
6.7 Connection of peripheral devices............................................................................................. 24
6.8 Adjustment................................................................................................................................ 25
6.8.1 Adjustment with internal weight (only models PNJ) ................................................................. 26
6.8.2 Adjustment with external weight (only models PNS)................................................................ 27
6.9 Verification................................................................................................................................ 28
7Basic Operation ........................................................................................... 30
7.1 Start-up..................................................................................................................................... 30
7.2 Switch into stand-by mode ....................................................................................................... 30
7.3 Zeroing...................................................................................................................................... 31
7.4 Simple weighing ....................................................................................................................... 31
7.5 Unity change............................................................................................................................. 32
7.6 Weighing with tare.................................................................................................................... 34
7.6.1 Taring........................................................................................................................................ 34
7.6.2 Multiple tare.............................................................................................................................. 35

PNJ_PNS-BA-e-1713 3
8Menu ............................................................................................................. 36
8.1 Menu [function]......................................................................................................................... 36
8.1.1 Navigation in the menu............................................................................................................. 36
8.1.2 Menu overview ......................................................................................................................... 37
8.2 Menu [Function2]...................................................................................................................... 40
8.2.1 Navigation in the menu............................................................................................................. 40
8.2.2 Menu overview ......................................................................................................................... 40
9Applications ................................................................................................. 41
9.1 Parts counting........................................................................................................................... 41
9.2 Percent determination .............................................................................................................. 44
9.3 Weighing with tolerance range................................................................................................. 46
9.3.1 Enable function / settings in menu ........................................................................................... 47
9.3.2 Tolerance check after setting the limit values by weighing ...................................................... 49
9.3.3 Tolerance check after numeric input of the limit values ........................................................... 51
10 General functions ........................................................................................ 53
10.1 Zero-tracking ............................................................................................................................ 53
10.2 Settings for Stability and Response ......................................................................................... 54
10.3 Show software status (only models PNJ)................................................................................. 55
10.4 Switch-off background illumination of the display automatically (only models PNJ)................ 56
10.5 Setting date / time (only models PNJ)...................................................................................... 57
10.5.1 Setting time .......................................................................................................................... 57
10.5.2 Setting date.......................................................................................................................... 59
10.6 Set date format (only models PNJ) .......................................................................................... 61
11 RS232C-interface......................................................................................... 62
11.1 General hints ............................................................................................................................ 62
11.2 Printer operation....................................................................................................................... 65
11.2.1 Edit an ISO/GLP/GMP-conform adjustment log (only models PNJ).................................... 65
11.2.2 Protocol output with current date / time (only models PNJ)................................................. 66
11.3 Data output............................................................................................................................... 68
11.3.1 Data transmission format..................................................................................................... 68
11.3.2 Description of data ............................................................................................................... 70
11.3.3 Output examples.................................................................................................................. 72
11.4 Remote control instructions...................................................................................................... 73
12 Servicing, maintenance, disposal .............................................................. 75
12.1 Cleaning.................................................................................................................................... 75
12.2 Servicing, maintenance ............................................................................................................ 75
12.3 Disposal.................................................................................................................................... 75
13 Instant help................................................................................................... 76
14 Error messages............................................................................................ 77
15 Declaration of conformity ........................................................................... 78

4 PNJ_PNS-BA-e-1713
1 Technical data
KERN PNJ 600-3M PNJ 3000-2M PNJ 12000-1M
Weighing range (max) 620 g 3200 g 12000 g
Readability (d) 0.001 g 0.01 g 0.1g
Minimum load (Min) 0.2 g 0.5 g 5 g
Verification value (e) 0.01 g 0.1g 1 g
Verification class I II II
Reproducibility 0.001 g 0.01 g 0.1 g
Linearity ± 0.004 g ± 0.02 g ± 0.2 g
Smallest part weight for
piece counting 0.001g 0.01 g 0.1 g
Reference quantities at
piece counting 10, 30, 50, 100
Adjustment weight internal
Weighing Units g, ct
Adjustment internal
Warm-up time 4 h 2 h
Stabilization time (typical) 3 s
Operating temperature + 5° C .... + 40° C
Humidity of air max. 80 % (not condensing)
Weight kg (net) 4200 g 3500 g
Electric power supply Line adapter 220V-240V, 50 Hz
Balance 6 V, 1 A
Interface RS232

PNJ_PNS-BA-e-1713 5
KERN PNS 600-3 PNS 3000-2 PNS 12000-1
Weighing range (max) 620 g 3200 g 12000 g
Readability (d) 0.001 g 0.01 g 0.1 g
Reproducibility 0.001 g 0.01g 0.1 g
Linearity ± 0.004 g ± 0.02 g ± 0.2 g
Recommended adjustment
weight, not added (class) 600 g (F1) 3 kg (F1) 12 kg (F1)
Smallest part weight for
piece counting 0.001g 0.01 g 0.1 g
Reference quantities at
piece counting 10, 30, 50, 100
Weighing Units g, ct, dwt, lb, mo, oz, ozt, tl (HK), tl (Singap., Malays), tl (Tw), tol
Warm-up time 4 h 2 h
Stabilization time (typical) 3 s
Operating temperature + 5° C .... + 40° C
Humidity of air max. 80 % (not condensing)
Weight kg (net) 3500 g 2600 g
Electric power supply Line adapter 220V-240V, 50 Hz
Balance 6 V, 1 A
Interface RS232

6 PNJ_PNS-BA-e-1713
1.1 Dimensions
Models d = 0.001g:
Models d = 0.01g / 0.1 g:

PNJ_PNS-BA-e-1713 7
2 Appliance overview
Models d = 0.001g:
Models d = 0.01g / 0.1 g:
Pos. Designation Pos. Designation
1 Windshield 6 Footscrews
2 Weighing pan 7 Fastening point for anti-theft protection
3 Display 8 Interface RS232
4 Bubble level 9 Terminal power supply unit
5 Operator keys

8 PNJ_PNS-BA-e-1713
2.1 Keyboard overview
Button Function
Turn on/off
Transfer weighing data via interface
Exit menu / back to weighing mode.
Save settings/back to weighing mode
Switch-over weighing unit
Menu access (longer pressing of the button)
Scroll forward in menu
Taring
Zeroing
Change menu settings

PNJ_PNS-BA-e-1713 9
2.2 Overview of display
Display Description
g Weighing unit “gram”
Zero indicator
NET Display net weight values
Display of stable values
The balance is in stand-by mode
Illuminated during data transfer
Pcs Application icon for piece counting
% Application icon for percentage determination

Tolerance mark during check weighing
(mom) Weighing unit „Momme“
M The balance processor is just processing a function.
CAL Illuminates and flashes during an adjustment process
Brackets for identifying non verified digits
(only verified models)
Capacity display
The bar graph display moves from the left to the right and
proceeds equally to the weight loaded onto the weighing
balance. Its full width is reached at maximum load. This is an
analogue display of the current allocation of the weighing area.
Units field
[ ] (ct) Carat
[ ] (oz) Ounze
[ ] (lb) Pound
[ ] (ozt) Feinunze
[ ] (dwt) Penny weight
[ ] (tl ) Tael (Hong Kong)
[
upper right] (tl
upper right) Tael (Singapore,Malaysia)
[
[ lower right ] (tl
lower right) Tael (Taiwan)
[ ] (to) Tola

10 PNJ_PNS-BA-e-1713
3 Basic instructions
3.1 Intended use
The balance you purchased is intended to determine the weighing value of material
to be weighed. It is intended to be used as a “non-automatic balance”, i.e. the
material to be weighed is manually and carefully placed in the centre of the weighing
pan. As soon as a stable weighing value is reached the weighing value can be read.
3.2 Improper Use
Do not use balance for dynamic weighing. In the event that small quantities are
removed or added to the material to be weighed, incorrect weighing results can be
displayed due to the “stability compensation“. (Example: Slowly draining fluids from a
container on the balance.)
Do not leave permanent load on the weighing pan. This may damage the measuring
system.
Impacts and overloading exceeding the stated maximum load (max) of the balance,
minus a possibly existing tare load, must be strictly avoided. Balance may be
damage by this.
Never operate balance in explosive environment. The serial version is not explosion
protected.
The structure of the balance may not be modified. This may lead to incorrect
weighing results, safety-related faults and destruction of the balance.
The balance may only be used according to the described conditions. Other areas of
use must be released by KERN in writing.
3.3 Warranty
Warranty claims shall be voided in case
•Our conditions in the operation manual are ignored
•The appliance is used outside the described uses
•The appliance is modified or opened
•Mechanical damage and damage caused by media, liquids,
natural wear and tear
•The appliance is improperly set up or incorrectly electrically connected
•The measuring system is overloaded

PNJ_PNS-BA-e-1713 11
3.4 Monitoring of Test Resources
In the framework of quality assurance the measuring-related properties of the
balance and, if applicable, the testing weight, must be checked regularly. The
responsible user must define a suitable interval as well as type and scope of this test.
Information is available on KERN’s home page (www.kern-sohn.com) with regard to
the monitoring of balance test substances and the test weights required for this. In
KERN's accredited DKD calibration laboratory test weights and balances may be
calibrated (return to the national standard) fast and at moderate cost.
4 Basic Safety Precautions
4.1 Pay attention to the instructions in the Operation Manual
Carefully read this operation manual before setup and
commissioning, even if you are already familiar with KERN
balances.
All language versions contain a non-binding translation.
The original German is binding.
4.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
5 Transport and storage
5.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
5.2 Packaging / return transport
Keep all parts of the original packaging for a possibly required
return.
Only use original packaging for returning.
Prior to dispatch disconnect all cables and remove loose/mobile
parts.
Reattach possibly supplied transport securing devices.
Secure all parts such as the glass wind screen, the weighing pan,
power unit etc. against shifting and damage.

12 PNJ_PNS-BA-e-1713
6 Unpacking, Setup and Commissioning
6.1 Installation Site, Location of Use
The balances are designed in a way that reliable weighing results are achieved in
common conditions of use.
You will work accurately and fast, if you select the right location for your balance.
Therefore, observe the following for the installation site:
•Place the balance on a firm, level surface.
•Avoid extreme heat as well as temperature fluctuation caused by installing
next to a radiator or in the direct sunlight.
•Protect the balance against direct draughts due to open windows and doors.
•Avoid jarring during weighing.
•Protect the balance against high humidity, vapours and dust.
•Do not expose the device to extreme dampness for longer periods of time.
Non-permitted condensation (condensation of air humidity on the appliance)
may occur if a cold appliance is taken to a considerably warmer environment.
In this case, acclimatize the disconnected appliance for ca. 2 hours at room
temperature.
•Avoid static charge of goods to be weighed or weighing container.
Major display deviations (incorrect weighing results) may be experienced should
electromagnetic fields (e.g. due to mobile phones or radio equipment), static
electricity accumulations or instable power supply occur. Change location or remove
source of interference.
6.2 Unpacking, Scope of delivery
Remove device and accessories carefully from packaging, remove packaging
material and place device at the planned work place. Verify that there has been no
damage and that all packing items are present.

PNJ_PNS-BA-e-1713 13
6.2.1 Scope of delivery / serial accessories:
Balance Net adapter and plug set
Round weighing pan
(models d = 0.001g) Angular weighing pan (models d = 0.01g / 0.1 g)
Carrier for round weighing pan
(models d = 0.001g) Carrier for angular weighing pan (models d = 0.01g / 0.1 g)
Windshield (models d = 0.001g)
Assembly see chap. 6.3 Operating instructions

14 PNJ_PNS-BA-e-1713
6.3 Assemble windshield (only models d = 0.001g)
Parts overview:
Quantit
y
Quanti
ty
Guide frame
1
Front plate (with 3 bore holes)
1
Rear wall
1
Inner plate
1
Handle
3
Side wall
3
Fastening screw “Handle”
5
Base frame
1
Cover
2
Front cap
2
Support inner plate
2
M4 screws
4

PNJ_PNS-BA-e-1713 15
Assembly:
1Loosen locking system at the back panel
2Fix the back panel on the ground frame with two screws (M4)
3Assemble the supports for the inner plate acc. to fig.

16 PNJ_PNS-BA-e-1713
4Fasten the front plate.
Make sure that the fastening point is placed at the frame in the bore
hole of the front plate.
5Secure the front plate with the guide frame temporarily against
falling out.

PNJ_PNS-BA-e-1713 17
6Push the side panels from the rear to the front into the guide
frame. Make sure that the bore holes point towards the front
plate.
7Fix the handles with the fastening screws.
8Fix the guide frame with two screws (M4).
Handle
Fastening screw
Handle
Fastening screw

18 PNJ_PNS-BA-e-1713
9Attach the covers and the front caps
0Install inner plate. For this purpose push the plate through the
two supports.
Covers
Front caps

PNJ_PNS-BA-e-1713 19
aAttach the upper glass pane and fix the handles with the
fastening screws.
Handle
Bore
Fastening screw

20 PNJ_PNS-BA-e-1713
6.4 Assembly, placing and levelling
The right place is decisive for the accuracy of the weighing results of high-resolution
precision balances (see chap. 6.1).
Place the weighing pan carrier acc. to fig. and fix it carefully e.g. with a coin.
Place weighing pan
Models d = 0.001g
Models d = 0.01g / 0.1 g
Install windshield (only models d = 0.001g).
Make sure that the locking system at the back panel is released.