Comet System S5141 User manual

LOGGER S5141
Three channel 0-5 Vdc datalogger
with internal temperature sensor and display
Instruction Manual

2 IE-LOG-S5141-01
Instruction manual for use of the S5141 logger
The device is designed to measure and record signals from up to three external sensors with
output 0 - 5 Vdc with the possibility to record simultaneously the ambient temperature measured by
the built-in sensor. Sensor connection is realized via terminals. Measured values are displayed on the
two-line LCD display and are stored in selectable time interval to internal nonvolatile memory. All
logger settings and control are performed by means of personal computer and password protection is
enabled. It is also possible to switch ON and switch OFF the logger by start/stop magnet (this function
can be disabled from the PC). Also automatic switch ON at programmed day and time (maximum
one month forward) is enabled. Start/stop magnet enables also to clear the minimum and maximum
value memory.
Minimum and maximum measured values can be displayed (display switches to actual measured
values and min/max values automatically). It is also possible to operate logger with switched OFF
display. Short display of actual measured values is enabled by means of magnet.
Switched ON logger every 10 seconds (independently on logging interval) updates MIN/MAX
memory, compares measured values of each channel with two adjustable limits for each channel and
exceeding of limits is indicated on the display (alarm function). Also memory alarm mode is
selectable, when alarm is indicated permanently till alarm memory reset. Alarm function is enabled
or disabled for each channel individually.
Logging mode can be adjusted as non-cyclic, when logging stops after filling the memory. In
cyclic mode oldest stored values are overwritten by new. In addition logging mode can be selected
when logging is active only if measured value is out of adjusted alarm limits.
Stored values can be transferred from logger memory to the PC by means of communication
adapter. Communication adapter can be connected to the logger permanently –data logging is not
interrupted even if data download appears.
Logger evaluates minimum battery voltage and its drop below allowed limit is indicated on the
display. At the same time valueof remaining battery capacity is available by means of the PCprogram
and appears on the logger LCD in % (every time after switch ON).
Technical parameters:
Measuring parameters:
Voltage inputs (IN1, IN2 and IN3):
Voltage measuring range: 0 to 5 V dc
Effective resolution: 16 bits
Accuracy: ±0.2 % FS
Input resistance: approximately 100k ohms
Ambient temperature (RTD sensor Pt1000/3850ppm):
Measuring range: -30 to +70 °C
Resolution: 0.1 °C
Accuracy: ± 0.4 °C
Response time: t63 < 6 min, t90 < 15 min (air flow approximately 1 m/s,
temperature step 20 °C)
Connection of input signals: shielded cable max. length of 10 m with terminal WAGO 734,
(max. wires cross-section 1,5 mm2 )
Measuring interval, alarm evaluation, MIN/MAX memory update and display refresh: 10 s
Logging interval to memory: 10 s to 24 h (20 steps)

IE-LOG-S5141-01 3
Total memory capacity:
for non-cyclic mode 8 126 records for each measured channel
for cyclic mode 7 880 records for each measured channel
Specified values are maximum possible (when all channels are switched on) and can be
reached only if record is not interrupted (since last memory erasing)
Communication with computer: via RS232 (serial port) by means of COM adapter or USB
port by means of USB adapter; data transfer from logger via communication adapter is
optical
Real time clock: adjustable from computer, integrated calendar including leap years
Error of internal RTC: < 200 ppm (i.e. 0.02 %, 17.28 s in 24 h)
Power: Lithium battery 3.6 V size AA
Typical battery life:
typical (data download to PC is carried out about once a week): 5 years
in continuous on-line mode with interval 1 minute: approximately 3 years
in continuous on-line mode with interval 10 seconds: approximately 1 year
Notice: The above battery lives are valid for logger operation in temperature from -5 to
+35°C. If often operated outside of the above temperature range battery life can be reduced
to 75%.
Protection: IP20
Operational conditions:
Operational temperature range: -30 to +70 °C
Operational humidity range: 5% to 85 %RH
Specification of outer characteristics accordingly to Czech National Standard 33-2000-3:
normal environment accordingly to appendix NM: AE1, AN1, AR1, BE1
Operational position: negligible
Logger installation: by self adhesive Dual Lock, applied to clean, flat surface
Not allowed manipulation: incoherent surface is unsuitable for installation of the logger
using the self adhesive Dual Lock
Limit condition: temperature -40 to +70 °C, humidity 5 to 85 %RH
maximum voltage at measuring input (IN1, IN2 and IN3) -1 to +7V dc
Storing condition: temperature -40 to +85 °C, humidity 5 to 90 %RH
Dimensions: 93 x 64 x 29 mm
Weight including battery: approximately 130 g
Material of the case: ABS
Logger operation
Logger comes complete with installed battery and switched OFF. Before operation it is necessary
by means of installed user PC software to set logging parameters and other features. The PC program
is common for all types of loggers Sxxxx –for type S5141 it is necessary to have installed version
4.0.17.0 or higher. Older program version can cause logger reconfiguration together with loss of
proper function! Installed program version can be verified in menu Help / About program… Free
newest program version is available to download at www.cometsystem.com. For communication with
the PC a communication adapter is necessary (not included in delivery). For connection via RS232
serial port it is necessary to use COM ADAPTER, for connection via USB port it is necessary to use
USB ADAPTER. Connect adapter connector to proper computer port and plug the adapter to the
guide slots on the side of logger.

4 IE-LOG-S5141-01
Connecting logger to the computer by means of communication adapter
Notice: USB connector can be located also from the computer front side
After connecting the logger to the computer reading of logger info is enabled by means of the
PC software and also setting of the instrument accordingly to the user needs (menu Configuration /
Setting of instrument parameters).
Before logging start it is necessary:
check or optionally set the logger real time clock
select suitable logging interval
select logging mode (cyclic or non-cyclic)
for channels IN1 to IN3 to specify conversion constants to the measured voltage values can
be displayed directly in real physical readings and enter the number of decimal places
switch OFF inputs that are not be recorded (e.g. when the sensor is not connected)
switch ON the logger (or switch OFF, if it is about to be switched ON by magnet or
automatically with delayed start)
enable or disable the option to switch ON the logger by magnet
enable or disable the option to switch OFF the logger by magnet
enable or disable the option to reset memory of MIN/MAX values by magnet
set date and time of logger automatic switching ON or disable this option
select if record runs permanently or only if alarm is active
if alarms are about to be applied, set both limits for each measured quantity and enable alarm
optionally enable permanent alarm indication (alarm with memory)
switch ON or switch OFF display logger
optionally switch ON displaying of MIN/MAX values on the LCD
reset memory of MIN/MAX values (if needed)
check free space in data memory, optionally erase data memory of the logger
enter password if protection against unauthorized manipulation with the logger is necessary
The measured values are stored at preset intervals, while the moments of saving are chosen (for
greater clarity) so that took place in integral multiples of time. For the interval of 15 minutes the
values will be stored every 15th, 30th, 45th and the 00th minute and zero second to every hour, at an
interval of 3 clocks to be recorded at 00.00, 03.00, 06.00 hour etc. It follows that after starting the
recording the instrument waits for the nearest integer multiple of time and then store the first value.
This should be taken into account when set the time of the automatic switching ON of the logger.
The external sensor can be connected only when the logger is switched off, otherwise it may
cause incorrect writing to MIN / MAX memory and to memory of the measured values.

IE-LOG-S5141-01 5
Notice: If logger operates as permanently connected to the computer, using of magnet start/stop
is disabled.
To enable the logger control by magnet is suitable only in cases, when possibility of
unauthorized manipulation to the logger operation is eliminated.
Connection to voltage output of a transducer
The devices with the voltage output connect to data logger by the shielded cables and the WAGO
terminals. The shielding of cables connect to (-) terminals. All (-) terminals are galvanically
connected and therefore the voltage transducers have to be powered from one source. Short change
of polarity does not cause the damage, but data logger does not measure correctly (records zero
voltage). Permanent incorrect polarity is not allowed (increased consumption from the battery).
Note: all (-) terminals are galvanically connected in data logger.
Readings on the display in usual operation (logger switched ON)
After switching ON the logger all LCD symbols are displayed for checking
the display.
Then actual date and time in logger is displayed for approximately 4 s.
Consequently reading of estimated remaining battery capacity for
approximately 2 s is displayed (values 0 to 100%). It is valid if logger is
operated at temperature from -5 to +35°C. If logger is operated often outside
of the above temperature range battery life can be reduced to 75%, i.e. if
displayed remaining battery capacity drops below 25%, it is recommended to
replace the battery.
If display is switched ON, actual readings of measured values are displayed.
The value from 1. channel (symbol 1) is displayed on the LCD upper line,
value from 2. channel (symbol 2) on the LCD lower line. Symbol LOG
indicates data logging in progress –if it blinks, data memory is filled up to
more than 90%.
Every 5 s display is automatically switched to displaying of measured
quantity. Logger now displays value of 3.channel (LCD upper line) and
ambient temperature (LCD lower line).

6 IE-LOG-S5141-01
Switched ON logger permanently (with 10 s interval) updates memory of
minimum and maximum values of each measured quantity. If displaying of
MIN/MAX values is selected, minimum measured values are displayed step
by step (indicated by symbol MIN) and then similarly maximum measured
values of all quantities (indicated by symbol MAX). The entire cycle is
repeated periodically, i.e. reading of actual measured values follows.
If display is switched OFF, all above readings are displayed up to estimated
remaining battery capacity and then display goes out. If logger is switched
ON symbol LOG is displayed (it blinks if memory occupation is higher than
90%).
If display is OFF and logger is in mode when record runs only when alarm is
active, the LOG symbol is replaced by adjacent symbol "–" (hyphen). It
appears in case, all measured values are inside of adjusted alarm limits and
data logging therefore does not run. Displayed symbol indicates logger is ON.
If information on actual measured values is needed, it is possible anytime to display reading
display by means of the magnet (only if communication adapter is not connected permanently). Plug
magnet into guide slots from logger front side for approximately 4 s and wait till reading on the
display appears. If logger has enabled the function switch OFF by magnet or the function reset
memory of MIN/MAX values by magnet, do not remove magnet from guide slots before decimal
point symbol goes out –logger would be switched OFF (memory of the MIN/MAX values would be
erased)! Display reading initialized by magnet goes out automatically after 30 s. Remove magnet
from slots anytime during actual reading is ON or later.
Temporary displaying of actual reading by magnet

IE-LOG-S5141-01 7
Alarm indication on the display
It is necessary to enable alarm function from the PC and set for each quantity lower and upper
limit. If measured value is inside of set limits, alarm of proper quantity is not active. If value of
measured quantity gets outside of set limits, alarm of proper quantity is active and it is indicated on
the display. It is possible to select "memory alarm mode" when alarm is indicated permanently up to
reset from the PC. Active alarm is indicated (if display is ON) by blinking of the value of proper
quantity on the display and arrow symbol appears at the LCD upper side at
the same time. Arrow 1 indicates active alarm for channel IN1, arrow 2 for
channel IN2, etc.
Notice: if logger is operated at low temperature (below approximately -5 °C),
alarm indication by blinking can be indistinct. Indication by arrows works
correctly.
Messages displayed on the LCD beyond usual operation
If measured value is out of the measurable or displayable range numeric reading is replaced by
hyphens.
If memory is totally full filled in non-cyclic logging mode, logger is switched
OFF and message MEMO FULL appears on the LCD. It appears also if logger
is operated with switched OFF display.
New initialization of logger can occur in switching ON the logger
(immediately after displaying of all LCD segments for checking) e.g. after
replacement of totally discharged battery for new one. State is indicated by
INIT reading. It can be displayed for about 12 s.
If battery voltage drop occurred since last internal clock setting below critical
limit or battery disconnection for longer period than approximately 30 s, after
display switch ON (during date and time display) all four arrows appears as
warning to check or set it again from the computer. However all logger
functions work without limitation.
If reading BAT is displayed periodically on LCD upper line (for 1 s with 10
s interval), the end of estimated battery life is coming –however logger
functions are not limited. Replace battery as soon as possible!
If reading BAT is displayed permanently, battery voltage is low and logger is
not possible to switch ON. If logger was switched ON before it, data logging
is stopped and logger is switched OFF. Communication with computer can
temporarily work. Replace battery as soon as possible!

8 IE-LOG-S5141-01
Start / stop by magnet
The function must be enabled from the PC before. If only switching OFF by magnet is enabled,
it is of course necessary to switch ON the logger from the computer.
Notice: It is not possible to combine this function with function reset of MIN/MAX values by
magnet! User software enables to select only one of them.
Switching the logger ON by magnet
Plug magnet to guide slots from logger front side and wait approximately 1 s for decimal point
appears right on LCD upper line. After appearance it is necessary immediately (till indication point
is displayed) to remove magnet from guide slots and logger switches ON.
Switching the logger OFF by magnet
The procedure is identical with the above procedure for switching ON. If decimal point does not
appear after 1 s, it is necessary remove the magnet and repeat the procedure.
Reset of MIN/MAX values by magnet
Function enables to clear MIN/MAX values by magnet without using computer. It is necessary
to enable the function from the PC software before.
Notice: It is not possible to combine this function with function of switching logger OFF by
magnet! User software enables to select only one of them (or none).
Plug magnet to guide slots from logger front side and wait approximately 1 s for decimal point
appears right on LCD upper line. After decimal point appearance it is necessary immediately (till
indication point is displayed) to remove magnet from guide slots. Reading CLR MIN MAX appears
for several seconds and MIN/MAX values will be cleared.

IE-LOG-S5141-01 9
Battery replacement
Low battery is indicated on the display by blinking of reading "BAT". It can be displayed
permanently, if battery voltage is too low. Replace the battery for new one. Applied is Lithium battery
3,6 V, size AA. Battery is located under logger lid.
Warning: near battery fragile glass reed contact is located –be careful not to damage it. Be
careful in battery replacement!
Replacement procedure:
switch off the logger by the PC program or by magnet (if low battery allows)
unscrew four corner screws and remove the lid
remove old battery by pulling the glued tape
insert new battery respecting the correct polarity (see symbols + and –near battery holder). If
you connect new battery up to 30 s, all logger settings remain unchanged. In the opposite case
check by means of PC program all settings, especially the real time clock in logger. Attention,
inserted battery with incorrect polarity causes logger damage!
put the lid back again and screw four screws. Be careful to have the rubber sealing properly in the
slot and tighten the screws properly to ensure the water resistance of the instrument.
connect logger to the computer and write to it the information on battery replacement. This
step is necessary to evaluate properly the remaining battery capacity.
Old battery or logger itself (after its life) is necessary to liquidate ecologically!
Instrument passed through tests of electromagnetic compatibility (EMC):
Device conforms in accordance with EN 61326-1 these norms:
radiation: EN 55011 Class B
immunity: EN 61000-4-2 (levels 4/8 kV, Class A)
EN 61000-4-3 (intensity of electric field 3 V/m, Class A)
EN 61000-4-4 (levels 1/0.5 kV, Class A)
EN 61000-4-6 (intensity of electric field 3 V/m, Class A)
Technical support and service
Technical support and service is provided by distributor. Contact is included in warranty
certificate.