APAR AR234 Installation instructions

USER INSTRUCTION
DATA RECORDER
AR234
Version 1.0.5
2016.07.08

2
Thank you for choosing our product.
This instruction is intended to facilitate correct operation, safe use, and taking full advantage of
the recorder's functionalities.
Before you start the device, please read and understand this instruction.
In the event of any additional questions, please contact our technical adviser.
CONTENT
1. IN TALLATION GUIDELINE ....................................................................................................................... 3
2. GENERAL CHARACTERI TIC OF THE RECORDER ................................................................................. 3
3. CONTENT OF THE ET ............................................................................................................................... 4
4. TECHNICAL DATA......................................................................................................................................... 4
5. HOU ING DIMEN ION , DE CRIPTION OF CONNECTION AND EXTERNAL ELEMENT ............... 6
6. MEA UREMENT CONNECTOR DE CRIPTION AND THE ELECTRICAL CONNECTION .................... 6
7. CONNECTING TO A COMPUTER AND IN TALLATION OF DRIVER ..................................................... 6
8. IN TALLATION OF OFTWARE .................................................................................................................. 7
9. ETTING OF THE CONFIGURATION PARAMETER ................................................................................. 7
9.1. TIME AND DATE..................................................................................................................................... 9
9.2. RECORDING OPTION ......................................................................................................................... 9
9.3. CONFIGURATION OF THE MEA UREMENT INPUT .......................................................................... 9
9.4. ACCE AND IDENTIFICATION OPTION ........................................................................................ 10
9.5. DI PLAY OPTION .............................................................................................................................. 11
9.6. CONFIGURATION OF THE ALARM OUTPUT ................................................................................... 11
10. U E AND FUNCTION OF THE D/MMC CARD .................................................................................. 12
11. VIEWING RECORDED MEA UREMENT AND EVENT ...................................................................... 12
12. ME AGE AND ERROR IGNALING ...................................................................................................... 13
13. IMPORTANT COMMENT PERTAINING TO OPERATION ................................................................... 13
14. CHANGING THE BATTERY ...................................................................................................................... 14
Please pay parti ular attention to fragments marked with this sign.
The manufa turer reserves its rights to modify the design and software of the devi e without deteriorating its te hni al parameters.
!

3
!
1. INSTALLATION GUIDELINES
The devi e is designed so as to ensure an appropriate level of immunity to most interferen es that may o ur in
industrial environments. In environments of unknown level of interferen es, it is re ommended to implement the
following measures so as to prevent potential interferen e with the operation of the devi e:
 use shielded sensor, and signal ables, whereby the earthing of the shield should be single-point and lo ated
as lose to the devi e as possible;
 avoid running measurement (signal) ables in the dire t vi inity of and parallel to power and supply ables;
 it is re ommended to use twisted pair signal ables;
 in the ase of sensing resistors in 3-wire onne tions, use identi al wires;
 avoid proximity of remotely ontrolled devi es, ele tromagneti meters, high power loads, loads with phase
or group power ontrol, and other devi es that ause high impulse disturban es;
 ground or zero metal rails on whi h rail-mounted devi es are installed.
Make sure to remove the prote tive film from the LCD display before the first use of the devi e.
2. GENERAL CHARACTERISTICS OF THE RECORDER
 re ording of data from the measurement input and the internal temperature sensor;
 1 universal measurement input (thermoresistan e, thermo ouple, and analog) and integrated digital
temperature sensor;
 data re ording in a standard text file lo ated in the internal memory of the re order or on an SD/MMC ard in
the FAT system, with the possibility to read through the USB interfa e;
 portable housing suitable for wall installation;
 battery power supply with the possibility that the user hanges the battery;
 LCD display that shows the measured values, messages, and errors;
 long operation time with a new battery (up to 5 years, depending on the re ording interval, the presen e of
an SD ard, the operating temperature of the devi e, and the mode of operation of the display);
 possibility to transfer ar hived and onfiguration data on an SD ard;
 internal real time lo k with a battery ba kup power supply;
 ompensation of line resistan e for resistan e sensors (automati or permanent);
 ompensation of thermo ouple old tip temperature (automati or permanent);
 free software in luded that enables onfiguration of the parameters of the devi e and presentation of the
re orded results in a graphi form or as text; possibility to update from a website;
 high, low, within band, and outside of band alarm; signaling with an LED;
 programmable type of input, range of indi ations, re ording interval, start and end of re ording, and other
onfiguration parameters, su h as zero and sensitivity alibration, SD/MMC ard options, LCD display options,
and identifi ation number (ID);
 possibility to prevent unauthorized hange of the re order’s parameters from the SD/MMC ard and transfer
of ar hived data from the internal memory onto an SD/MMC ard (authorization of the ard or free a ess is
required);
 parameter onfiguration methods:
−through a USB outlet and software (Windows Vista/7/8/10);
−from a onfiguration file re orded on an SD/MMC ard;
 a he ksum that enables dete ting unauthorized modifi ations of the ar hive;
 possibility to differentiate ar hives from many re orders of the same type by assigning individual
identifi ation (ID) numbers;
 re ording of data until the memory is full, full memory signalization;
 possibility to update the re order’s software;
 high temperature stability of measurements, a ura y, and immunity to interferen es;

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 prote tion against in orre t battery polarity;
 available a essories:
−a lithium battery, 3.6 V, type AA (R6), 2450 mAh (e.g. SAFT LS14500);
−an SD memory ard (2 GB);
−SD/MMC ard reader;
−a stabilized power supply, 5 V/150 mA;
NOTE:
−before you start working with the re order, read this instru tion, perform the a tions des ribed in hapters 7
and 8, and then properly onne t the sensor or the input signal and onfigure the parameters ( hapter 9);
−re ording is performed only in a predefined interval (Start and Stop parameters, Table 9, hapter 9).
3. CONTENTS OF THE SET
 a re order with a 3.6 V AA lithium battery;
 a USB (A4 – mini B) able for onne ting the devi e to a omputer, 2 m long;
 a CD with the drivers and the software (Windows XP/Vista/7/8/10)
 a user instru tion;
 a warranty ard.
4. TECHNICAL DATA
A universal input
(programmable):
measurement range
-
Pt100 (RTD, 3
-
or 2
-
wire)
-
200
÷
850
°C
-
Ni100 (RTD, 3
-
or 2
-
wire)
-
50
÷
170
°C
-
thermo ouple J
-
40
÷
800
°C
-
thermo ouple K
-
40
÷
1
200
°C
-
thermo ouple S
-
40
÷
1
600
°C
-
thermo ouple B
300
÷
1800
°C
-
thermo ouple R
-
40
÷
1
600
°C
-
thermo ouple T
-
25
÷
350
°C
-
thermo ouple E
-
25
÷
680
°C
-
thermo ouple N
-
35
÷
1
300
°C
-
urrent (R
in
= 110 Ω)
0/4
÷
20
mA
-
voltage (R
in
= 110 kΩ )
0
÷
10
V
-
voltage (R
in
> 2 M Ω)
0
÷
60
mV
-
resistan e (3
-
or 2
-
wire)
0
÷
700
Ω
Number of measurement inputs
1
Resistance of leads
(RTD, Ω)
R
d
< 25 Ω (for ea h line)
Resistance input current
(RTD, Ω)
~480 μA (impulse)
rocessing errors
(at ambient temperature of 25 °C):
-
basi
-
for RTD, mA, V, mV, Ω
0.1% of the measurement range ±1 digit
-
for thermo ouples
0.2% of the measurement range ±1 digit
!

5
-
additional for thermo ouples
<2 °C (tempe
rature of old tips)
-
additional from ambient temperature hanges
< 0.005% of the input range /°C
An integrated temperature sensor
(measurement range: -20 ÷ 70 °C)
A ura y: ±0.5°C (in the range of
-
10 ÷ 70 °C)
±0.5 ÷ 1.5 °C (in the remaining range)
R
esolution of measured temperature
0.1 °C
Communication interface for work with a computer
USB, drivers ompatible with Windows
XP/Vista/7/8
/10
Measurement and data recording interval
programmable 10 s to 24 hours
Data storage memory
(non-volatile):
-
internal
4MB, FLASH, file system FAT12, re ording of up to 80,000
measurements
-
external SD/MMC ard
( onne tion with an eje tor)
FAT16, FAT32, maximum size 2 GB, re ommended size
≤ 1GB and FAT16 (re ording up to 19 million
measurements)
Real time
clock (RTC)
quartz, date, time, takes leap years into a ount)
Optical signaling
an LCD display, 3 LED’s: “READ/WRITE”, “Status”, 1 alarm
An LCD display
7
-
segment, 4 digits, 10 mm high
ower supply
(lithium battery)
3.6 V type AA (R6), 2,450 mAh,
(e.g.
SAFT LS14500)
Time of operation with a new battery (1)
up to 5 years (in temperatures 20 ÷ 30 °C)
Rated operating conditions
-
20 to 70 °C, <100% RH (no ondensation)
Operating environment
air and neutral gases, no dust
Housing
(wall-mounting)
materi
al ABS UL94
-
V0, white
rotection rating
IP20 (no prote tion against ingress of water and
ondensation)
Enclosure dimensions
80 x 80 x 25 mm
Operating position
any
Weight
approx. 100 g (with a battery)
Electromagnetic compatibility (EMC)
immunity: a o
rding to the PN
-
EN 61000
-
6
-
2:2002(U)
standard
emissivity: a ording to the PN
-
EN 61000
-
6
-
3:2002(U)
standard
(1)
−operation time depends on the measurement period, the presen e of an SD/MMC ard, the operation mode of the LCD display, and the ambient
temperature:
−5 years (re ording period > 10 min., re ording in internal memory, data opied only through the USB, LCD in the e onomy mode, 20-30 °C)
−20 months (measurement period > 10 min., re ording in internal memory, data opied only through the USB, LCD in the ontinuous mode,
20-30 °C)
−7 months (measurement period 10 s, internal memory, data opied only through the USB, 20-30 °C)
−1.5 year (measurement period > 10 min., re ording on an SD/MMC ard, LCD in the e onomy mode, 20-30 °C)
−4 months (measurement period 10 s, re ording on an SD/MMC ard, 20-30 °C)
−an unused SD/MMC ard installed in the so ket also redu es the operating time of a battery
−it takes about 2 min. to transfer the entire ontent of the internal memory (4 MB) onto an SD/MMC ard and it onsumes about 1-2 mAh of the
battery’s apa ity (tested on SanDisk and Kingston memory ards)
−by using an a essory power supply devi e, the operating time of a new battery an be extended to about 8 years

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5. HOUSING DIMENSIONS, DESCRIPTION OF CONNECTIONS AND EXTERNAL ELEMENTS
In the ase of wall-mounted installation, in order to make mounting holes, the ba k wall of the housing an be
uninstalled ( hapter 14) and used as a template.
6. MEASUREMENT CONNECTOR DESCRIPTION AND THE ELECTRICAL CONNECTIONS
a) numbering of onne tions and method of onne ting sensors and measurement signals
b) onne tion of a 2- and 3-wire transdu er (Iout - output urrent, Uout - output voltage)
7. CONNECTING TO A COMPUTER AND INSTALLATION OF DRIVERS
After the first onne tion, the Windows (XP/Vista/7/8/10) system dete ts the re order named “APAR USB DEVICE”
and demands installation of drivers. In the find new devi e wizard, manually indi ate the lo ation of the drivers
on a CD-ROM, the DRIVERS atalog).
In the Windows XP system, the installation pro edure is the following:
1. Choose the option “No, ot this time” and press the “Co ti ue” button.
2. Choose “I stall from a list or a specific locatio (adva ced)” and press the “Co ti ue” button
3. Sele t “Fi d the best driver i those locatio s” and the sele tion field “I clude this locatio i the search:,” press
Terminals
Description
2
-
3
-
4
input Pt100, Ni100, resistan e (2
-
and 3
-
wire)
2
-
3
thermo ouple input TC (J, K, S, B, R, T, E, N) and voltage input 0÷60 mV
1
-
2
urrent input 0/4÷20 mA
1
-
3
voltage input 0÷10 V

7
!
the “View” button, in the dialog box sele t the DRIVER folder, press the “Co ti ue” button, when the warning
“I stalli g a device” appears, press “Co ti ue a yway.”
4. The virtual COM port ”CDC USB to UART” is installed; press “Fi ish.”
5. The system then dete ts and installs the “Mass storage device” -> “ATMEL MASS STORAGE USB Device” -> “Disk
drive.”
After the installation is ompleted, the re orded is listed in the system as a virtual COMx port (x-port number: 1, 2,
...) and two ex hangeable disks: internal memory 4 MB with the AR234 label and SD/MMC memory (available after
the ard is put in the “SD/MMC CARD” slot). In the internal memory the onfiguration text file AR234.cfg an be
seen ( hapter 9).
NOTE:
Do not dis onne t the devi e from the omputer before the installation of drives is ompleted and whenever the
devi e is onne ted again to the USB port when disks are being dete ted (when the [READ/WRITE] LCD is on; see
hapter 5).
8. INSTALLATION OF SOFTWARE
In the "SOFTWARE" folder of the CD-ROM that is provided with the devi e there is a free software installation set
for the re order. The set ontains the following appli ations:
- ARSOFT-CFG WZ1 - display of urrent measurement data, battery voltage, and date and time;
- onfiguration of the real time lo k (RTC) and other parameters, su h as type of
measurement input, ranges of indi ations, re ording options, alarms, display, a ess options
et . ( hapter 9), the software requires ommuni ation with the re order via the USB port -
on-line configuration
- ARSOFT-WZ3 - presentation, in a graphi form or as text, of results, with the possibility to print; input data
is uploaded one time from a “ sv” text file reated in the internal memory in the re order or
on an SD/MMC ard ( hapter 11)
The latest versions of the aforementioned programs are also available at the website (www.apar.pl). The detailed
des riptions of the aforementioned appli ations an be found in the installation folders.
9. SETTING OF THE CONFIGURATION PARAMETERS
All the onfiguration parameters of the re order are stored in the non-volatile FLASH internal memory in a text file:
“AR234.cfg.”
When the devi e is swit hed on for the first time, an error message may be shown in the display due to the la k of
a sensor or the fa t that the sensor that is onne ted is not one that is fa tory-programmed. In su h an event, the
proper sensor or analog signal must be onne ted and the onfiguration must be programmed.
There are parameter onfiguration methods:
1.
Use the USB port and the ARSOFT-CFG WZ1 software (
on
-
line configuration
):
−onne t the re order to a omputer port and to start the ARSOFT-CFG WZ1 appli ation
−after the onne tion has been established, the urrent measured values, the battery voltage, and the
internal time and date of the re order are displayed in the software’s window; the “STATUS” LED indi ates
the presen e of transmission
−setting and viewing of the devi e parameters is possible in the parameter onfiguration window
−new parameter values must be approved with the Approve cha ges button
−the software enables syn hronization of the time and the date with the omputer
−the urrent onfiguration an be saved in a file or set using values read from a file
−the re order updates the “ fg” onfiguration file after it is dis onne ted from the USB port of the omputer
(provided that battery voltage > 3 V)

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NOTE:
!
−before dis onne ting the devi e from a omputer, press the Disco ect device button
−in the event of no response:
−in the Software optio s, he k the number of the COM port
−make sure that the serial port drivers have been installed orre tly ( hapter 7)
−dis onne t for a few se onds and then re onne t the re order to the USB port
−restart the omputer
−take the battery out of the re order for a few se onds (as des ribed in hapter 12)
In the event of indi ations different than the a tual value of the input signal, the zero and the sensitivity of a
sensor an be tuned: parameters 11: calO (zero) and 12: calG (sensitivity).
Table 9. List of onfiguration parameters
No. Name
Description of parameter
User settings
0
RTC
(1)
internal real time lo k ( hapter 9.1)
RECORDING O TIONS
( hapter 9.2)
1
Start
re ording start time
2
Stop
re ording end time
3
MPer
data re ording interval
4
SDest
sele tion of memory to save ar hive files (to re ord data)
CONFIGURATION OF THE MEASUREMENT IN UT
( hapter 9.3)
5
i p
type of measurement input
6
rrtd
total resistan e of leads for 2-wire RTD sensors and 700 Ω
7
cjte
temperature of old thermo ouple tips
8
dot
position of the point/resolution
9 rbot
bottom of the indi ation range (start of the s ale) for 0 mA, 4 mA, 0 V, 0 mV, and
0 Ω
10
rtop
top of the indi ation range (end of the s ale) for 20 mA, 10 V, 60 mV, and 700 Ω
11
calO
alibration of the zero
12
calG
alibration of the in lination
ACCESS O TIONS
( hapter 9.4)
13 bloc blo k of the “
CO Y
” button
14
Pass
ard authorization password
15
Pr
ot
SD ard authorization demand
16
ID
(1)
identifi ation number, ID (re orded in the sv ar hive file)
DIS LAY O TIONS
( hapter 9.5)
17
LCDmod
operation mode of the display
18
LCDupd
interval of display update in the ontinuous mode
19
LCDch
value to be displayed
CONFIGURATION OF ALARMS
( hapter 9.6)
20
AHigh
high alarm for the measured value
21
Alow
low alarm for the measured value
Notes: (1) – parameter a essible only from the level of ARSOFT-CFG WZ1 (on-line onfiguration)

9
9.1. TIME AND DATE
The urrent time and date are used as time stamps for re ording. Their review and modifi ation are possible only
from the level of the ARSOFT-CFG WZ1 software (item 1 of hapter 9).
Table 9.1. Parameters of the real time lo k (RTC)
arameter
Range of
variability of the parameter
Time (hh:mm:ss)
00:00:00
÷
23:59:59
Date (dd:mm:yyyy)
01.06.2008
÷
31.12.2099
9.2. RECORDING OPTIONS
Data is ar hived in a text file with a “csv” extension in the internal memory, on an SD/MMC ard; a detailed
des ription of the storage format is given in hapter 11. Re ording to a file is performed only when the urrent
time (RTC) is within a range defined by re ording parameters 1:Start and 2:Stop (Table 9.2). Re ording is
ontinued until the memory be omes full and is then stopped and the FWLL message is displayed repeatedly. The
ar hive files must then be transferred or opied for further analysis so as to free up spa e in the memory for new
re ording. Sele tion of the memory for re ording is determined by parameter 4:SDest.
Table 9.2. Configuration parameters pertaining to the re ording option
arameter Range of variability of the parameter and description
Company
settings
1:
Start
: re ording start
time (1) date: 01.06.2008 ÷ 31.12.2099, time: 00:00:00 ÷ 23:59:59 2008.06.01
00:00:00
2:
Stop
: re ording end
time (1) date: 01.06.2008 ÷ 31.12.2099, time: 00:00:00 ÷ 23:59:59 2008.06.01
00:00:00
3:
MPer
(2)
data re ording interval:
10 s
÷
24 hrs
, in rement 10 s 10 s
4:
SDest
the memory
where the ar hive files
(csv) ar
e to be re orded
(3)
i ter al
The
csv
files are reated only in the internal memory
auto
automati
sele tion
auto
ar hive files ( sv) are reated only on an SD/MMC ard or in
the internal memory when there is no ard
Notes: (1) - the devi e does not re ord data in a file when it is onne ted to the omputer's USB port
(2) - the re ording interval is ounted from the moment the devi e is dis onne ted from the USB port
(3) - it is possible to demand authorization of the SD ard ( hapter 9.4, parameter 15:Prot)
9.3. CONFIGURATION OF THE MEASUREMENT INPUT
Table 9.3. Configuration parameters of the measurement input
arameter Range of variability of the parameter and description
Company
settings
5: i p
type of input
Pt100
thermoresistan e sensor (RTD) Pt100 (-200 ÷ 850 °C)
Pt100
Ni100
thermoresistan e sensor (RTD) Ni100 (-50 ÷ 170 °C)
J
(Fe-CuNi)
thermoele tri sensor ( thermo ouple ) type J (-40 to 800 °C)
K
(NiCr-NiAl)
thermoele tri sensor ( thermo ouple ) type K (-40 to 1200 °C)
S
(PtRh 10-Pt)
thermoele tri sensor ( thermo ouple ) type S (-40 to 1600 °C)
B
(PtRh30PtRh6)
thermoele tri sensor ( thermo ouple ) type B (-300 to 1800 °C)
R
(PtRh13-Pt)
thermoele tri sensor ( thermo ouple ) type R (-40 to 1600 °C)
T
(Cu-CuNi)
thermoele tri sensor ( thermo ouple ) type T (-25 to 350 °C)

10
E
(NiCr-CuNi)
thermoele tri sensor ( thermo ouple ) type E (-25 to 820 °C)
N
(NiCrSi-NiSi)
thermoele tri sensor ( thermo ouple ) type N (-35 to 1300 °C)
4
-
20 mA
urrent signal 4...20 mA
0
-
20 mA
urrent signal 0...20 mA
0
-
10 V
voltage signal 0...10 V
0
-
60 mV
voltage signal 0...60 mV
0
-
700 Ohm
resistan e signal 0..700 Ω
6:
rrtd
line resistan e (1)
0 ÷ 50.00 Ω total resistan e of leads for 2-wire RTD sensors and 700 Ω 0.00 Ω
7: cjte temp. of old
thermo ouple tips
-20 ÷ 70.0°C
0 = automat.
automati (0 °C ) or onstant ompensation of temperature of
the referen e jun tion of thermo ouples
0
°C
automat.
8:dot
position of the
point/resolution
0
no point
(2)
or 1°C for temperature
0
(0.0/0.1 °C)
1
0.0
(2)
or resolution 0.1 °C for temperature
2
0.00
(2)
3
0.000
(2)
9:
rbot
bottom of the indi ation
range
-1999 ÷ 9999 units (2) – indi ation for 0 mA, 4 mA, 0 V, 0 mV, 0 Ω - start of the
input s ale 0.0 °C
10:
rtop
top of the indi ation
range
-1999 ÷ 9999 units (2) – indi ation for 20 mA, 10 V, 60 mV, 700 Ω - end of the
input s ale 100.0 °C
11:
calO
alibration of the zero zero offset:
-
50.0 ÷ 50.0
°C or
-
500 ÷ 500
units (2)
0.0
°C
12:
calG
alibration of the
in lination sensitivity (gain): 85.0 ÷ 115.0 % 100.0 %
Notes: (1) – in the ase of 3-wire sensors, there is automati line resistan e ompensation and parameter 6:rrtd
must be equal to 0.00 Ω
(2) – applies to analog inputs (mA, V, mV, Ω)
9.4. ACCESS AND IDENTIFICATION OPTIONS
Table 9.4. Configuration parameters on erning the a ess and identifi ation options
arameter Range of variability of the parameter and description
Company
settings
13:
bloc
blo k of the “
CO Y
” button:
off
or
o
off
14:Pass
ard authorization password:
0 ÷ 9999 1111
15:Prot
SD ard authorization
demand (1)
off
SD ard authorization demand is off
off
o
saving to an ar hive is possible only on a ard that ontains
the AR234. fg onfiguration file with a onforming password
(14:Pass)
16:ID (identifi ation
number) 0 ÷ 9999
an individual devi e number entered into the initial re ords in the
ar hive file ( sv) in order to distinguish ar hives from different
re orders of the same type
0
Notes: (1) - this fun tion prevents unintended off-line onfiguration or transfer from an ar hive from the internal
memory onto an SD ard put in the re order by a ident or by unauthorized persons.

11
9.5. DISPLAY OPTIONS
The display an work in one of the following two modes: e onomi (when parameter 17LCDmod=eco omic, Table
9.5) or ontinuous (LCDmod=co ti uous). In the e onomy mode, the display is swit hed on for several se onds
after ea h measurement is performed in the re ording mode or manually after the “CO Y” button is pressed. This
mode operation redu es the use of the battery to a minimum, thus extending the time of operation of the
re order without the need to hange the battery.
In the ontinuous mode, the display is swit hed on all the time and is updated after one of the following auses
takes pla e:
−a measurement and a re ording was performed in the re ording mode (in a ordan e with parameter
3:MPer, hapter 9.2, Table 9.2)
−a measurement was performed in a ordan e with the display update interval (18:LCDupd)
−a measurement was performed after the “CO Y” button was pressed
The display update period (parameter 18:LCDupd) makes it possible to perform measurements also when the
re ording is swit hed off. In order to redu e the use of the battery, it is re ommended to set this parameter to a
value greater than 1 min.
Table 9.5. Display options onfiguration parameters
arameter Range of variability of the parameter and description
Default
settings
17:
LCDmod
(1) display operation mode:
eco omy
or
co ti uous
e
c
o om.
18:LCDupd (1)
interval of display update in the ontinuous mode:
10 s - 24 hrs, 10 s in rement 2 mi utes
19:LCDch
value to be displayed
measureme t a d i ter al temperature
measureme t
a d i t. temp.
measureme t o ly
9.6. CONFIGURATION OF THE ALARM OUTPUT
When the measured values are displayed, the re order also enables signaling of alarm onditions with brief flashes
of the “LED-alarm” diode o urring every se ond. The hara teristi s and the values of the alarm thresholds for the
measured value are defined by the low alarm (parameter 21:Alow) and the high alarm (20:AHigh), see Table 9.6.
In order to obtain the low, high, or outside of band alarm, the low alarm must be set for a value that is smaller
than the high alarm value - Fig. 9.6.1. An alarm o urs in a preset band when the value of the low alarm is
higher than the value of the high alarm - Fig. 9.6.2.
Table 9.6. Configuration parameters of the alarm output
arameter Range of variability of the parameter and description
Company
settings
20:
AHigh
high alarm for the
measured value -199.9 ÷ 1800 °C or -1999 ÷ 18000 units (1) 18000°C
21:
Alow
low alarm for the
measured value -199.9 ÷ 1800 °C or -1999 ÷ 18000 units (1) -199.9 °C
Notes: (1) – applies to analog inputs ( mA, V, mV, Ω )

12
Fig. 9.6.1. High, low, or outside of the band alarm Fig. 9.6.2. Alarm within the band
10. USE AND FUNCTIONS OF THE SD/MMC CARD
Use of an SD/MMC ard may be parti ularly suitable to transfer data in the event of stationary (wall) installation of
the re order and when the size of the internal memory is not suffi ient to re ord the required number of
measurements.
A ard that is properly installed in the “SD/MMC CARD” slot has the following fun tions:
−storage of files with saved data in the ourse of re ording
−off-line onfiguration of the parameters of the devi e (from the AR234.cfg onfiguration file after the “CO Y”
button has been pressed, see hapter 9)
−transfer of “csv” ar hive files from the internal memory onto the ard (this is done after the “CO Y” button has
been pressed and the authorization has been su essful or when the authorization demand is swit hed off;
during the operation, the “STATUS” LED is illuminated; the time is up to 2 min. for 4 MB of data).
NOTE:
!
−transfer of “csv” files from the internal memory onto an SD/MMC ard takes pla e SIMULTANEOUSLY with
off-line onfiguration; onsequently, an appropriate “cfg” file must be present (or absent when parameter
15:Prot=off) so as to avoid undesirable re onfiguration of the re order
−in order to extend the operation of the battery, it is re ommended to use SD/MMC ards of reputable brands
(e.g. SanDisk, Kingston, or GoodRam) formatted in the FAT16 file system
−in the case of cards larger than 2 GB there is a risk that the device may lag, which requires taking out
the battery for a short time
11. VIEWING RECORDED MEASUREMENTS AND EVENTS
In order to ar hive data, the re order reates a text file with the " sv" extension in the internal memory or on an
SD/MMC ard. The file name ontains the devi e type (AR234), the identifi ation number 16:ID, and the date and
time of reation of the file, e.g. „AR234_1_2009-11-30_10-57-16. sv”. The format of a single data re ord is the
following: “sequential number of the event;date;time;identifier of the event;measurement;internal
temperature; he ksum”, an example re ord for measurement in the AR234: “30;2009-11-
09;16:34:58;5;149,5;26,2;8BE2”, where the measurement =149,5 and the internal temperature=26,2 °C. The types
and the identifiers of the re orded events are:
−measurement (identifier of event 5)
−onne tion to the USB port (0, “USB;CONNECTED”)

13
−dis onne tion from the USB port (1, “USB;DISCONNEC”)
−loading of new onfiguration parameters (3, “NEW;ON-LINE” or “NEW;OFF-LINE” )
−reation of a new “csv” file (4, “ID;xxxx”, where xxxx - value of parameter 16:ID of the devi e)
−low battery voltage, below 3.35 V (6, “LVBAT;x.xx”, where x.xx - battery voltage [V])
To make a presentation of re orded results in a graphi form or as a text, and to print them, the ARSOFT-WZ3
software must be used; the software also enabled dete ting unauthorized modifi ations of the ar hive. As an
alternative, “ sv” files an be edited in spreadsheet software (OpenOffi e Cal , Mi rosoft Ex el, et .) and in text
editors (Windows WordPad, Notepad++, et .).
NOTE:
!
If the SD/MMC ard is installed or removed in the ourse of re ording, a new " sv" file is reated where the
sequential numbers of events are ontinued from the previous file.
12. MESSAGE AND ERROR SIGNALING
a) measurement errors indi ated on the LCD display and in the “ sv” file in the measured value field:
Code
ossible causes of error
^^^^
“19999”
−
the measurement range of the sensor is ex eeded from the top
−the sensor is broken
− the sensor that is onne ted is different than the one that is set in the onfiguration ( hapter 9.3,
parameter 5:i p)
____
“-19999”
−
the measurement range of the sensor is ex eeded from the bottom
−the sensor is broken
− the sensor that is onne ted is different than the one that is set in the onfiguration ( hapter 9.3,
parameter 5:i p)
b) other elements indi ated by the LED’s on the side of the housing and on the LCD display
LED
Description of message
READ/
WRITE
−
writing to/reading from the internal memory or the SD/MMC ard (also during re ording of a
measurement)
−re ording is a tive (a short flash every 10 se onds)
STATUS
transmission through the virtual COM port (used in ARSOFT-CFG WZ1, item 1 of hapter 9)
opying of the onfiguration file from the SD/MMC ard to the re order and transfer of files with
re orded data onto the ard after the “CO Y” button is pressed ( hapter 10
full memory that prevents saving re orded data in an ar hive file
-
a qui k flash during attempted
re ording of measurement and the FWLL
too low battery voltage (less than 3.35 V)
-
short flash every 10 se onds when re ording is a tive and
the LbAt message on the display (also a re ord is reated in the ar hive file, hapter 11)
13. IMPORTANT COMMENTS PERTAINING TO OPERATION
!
Please read this instru tion arefully in order to ensure problem-free and optimized operation of the re order.
In order to ensure the longest possible operating time of the battery without the need to hange it, make sure to:
−set the longest possible value of the measurement and re ording interval (re ommended > 10 min., 3:MPer,
Table 9.2)
−use an SD/MMC ard only when this is a tually ne essary; otherwise, use the internal memory
−use the display in the e onomy mode (parameter 17:LCDmod); when the ontinuous mode is required, the

14
display update interval should be as long as possible (re ommended >1 min., parameter 18:LCDupd)
−swit hing off alarms when they are not needed (the low and high alarm should be set on the ends of the
measurement range, hapter 9.6, Table 9.6, parameters 20:AHigh, 21:ALow)
−delete unne essary files from the internal memory or the SD ard before new re ording starts
If one of the following onditions is met:
−the measurement and re ording interval is shorter than 10 min.;
−an SD/MMC ard is used
−when the display is used in the ontinuous mode (with frequent update of the measured values), onsider
using an a essory display that an extend the life of the battery to approx. 8 years.
Moreover, it is re ommended to omply with the following advi e:
−do not dis onne t the devi e from the omputer in the ourse of ommuni ation via the USB interfa e,
whi h is indi ated by the “READ/WRITE” and in the ARSOFT-CFG WZ1 software. USB ommuni ation is
present when mass memory is supported (internal memory or the SD/MMC ard) and during operation of
the ARSOFT-CFG WZ1 software.
−keep a opy of the urrent onfiguration file (AR234.cfg) in external memory (SD/MMC ard, omputer disk,
et .) for the purpose of ar hiving and future off-line onfiguration.
If the re order does not respond, the battery an be taken out for a short time and its harging level an be
he ked (if the voltage is less than 3.3 V, the battery should be repla ed with a new one).
14. CHANGING THE BATTERY
In order to hange the battery, use a flat s rewdriver and perform the following a tions:
−remove the ba k wall of the housing (as shown in Figure 14.1)
− arefully take out the ontrol board of the re order from the housing (Figure 14.2)
−repla e the battery with a new one of appropriate type ( hapter 4), observing the polarity in the holder
−reassemble the devi e by putting the board and the ba k wall in their pla es
NOTE:
!
When the battery is repla ed, the real time lo k (RTC) is reset to zero and must be set again using
the ARSOFT-CFG WZ1 software; other elements remain un hanged.
Fig. 14.1. Removal of the ba k wall Fig. 14.2. Removal of the ontrol board