Supco VLTS User manual

Temperature and Humidity Recorder –Stores,
Prints and Alerts
OPERATING MANUAL
Please note: This device contains data by regional default or as you requested.
Before turning on the device, you must print a “Settings”report and verify that the data on the device
meet your requirements. Supco is not and will not be liable for entering the data.
Supco International Ltd.
3 HaOmanut St., PO Box 8047, Sapir Industrial Zone, Netanya 4250437 Israel
Telephone: [phone]; fax: [phone]
www.supco.co.il [e-mail]
123389.02.06-01

Limited Warranty
Supco International Ltd. hereby undertakes to repair or replace, when possible, any part or its related
accessories, which were proved to have been damaged due to improper assembly or use of defective
material, at no charge for parts and labor, for a period of one year from the original date of purchase
of the device. This warranty does not apply when Supco International Ltd. believes that the
Temperature Recorder and Printer or any ancillary accessory were intentionally or inadvertently
damaged due to improper use, neglect or improper packaging, transport, repair or service by anyone
other than Supco International Ltd. or employees certified and authorized by Supco International Ltd.
For information about obtaining a service covered by this warranty, contact the wholesaler from whom
you purchased the Temperature Recorder and Printer, or contact Supco International Ltd. at the
following address:
Supco International Ltd., 3 HaOmanot St., PO Box 8047, Sapir (Poleg), Netanya 4250437 Israel.
Telephone: [phone]; fax: [phone]. www.supco.co.il in[email protected]l
Disclaimer of Liability
Supco does not provide any warranty, representation or undertaking to adapt its products for any
purpose, nor does Supco accept responsibility for any problem arising from the designation or use of
any product, and it expressly disclaims any liability, regardless of the importance and extent of the
damage, whether small or large.
Supco’s products are not designed, intended or approved for use as components in medical
ventilators, life-saving machines or any other use where a malfunction of a Supco product can create a
situation of injury or death of a person or cause a significant financial loss.
If a particular person or persons purchase or use Supco products for any unintentional or unapproved
designation, that person or persons shall have to compensate and protect Supco International Ltd. and
agents, employees, branches and distributors against any claims, costs, damages and expenses as
well as reasonable attorney’s fees deriving, directly or indirectly, from such, arising out of any
complaint of injury or death of a person or financial loss related to unauthorized and unintentional use,
even if such complaint alleges that Supco has been negligent in the design or manufacture of the
product.
Installation
1. The devices in the package are designed for hanging on a wall or placing on a table.
2. To hang the product on the wall, make sure that you use the appropriate screws. Tighten all the
screws to secure its position and prevent the product from falling.
3. First make all the connections to the device, and only then connect the power supply.
Precautions
1. Install the product in a dry environment. Prevent moisture conditions and water leaks.
2. Protect the device and the power supply from extreme temperatures. Do not install the product
near a radiator where it is exposed to direct sunlight.
3. Prevent falls of objects on the product. Prevent spillage of any liquids, such as strong acid.
4. Connect the power supply/unit to the voltage indicated on the unit.
5. To prevent damage to cables and connectors, do not disconnect cables by pulling them.
6. Run the cables so that they do not pose a hazard. Make sure the cables are not damaged.
Warnings
1. Do not replace cables or connectors with non-genuine parts.
2. Improper connections can cause fire and electric shock.
3. The power supply is for internal use only.

TABLE OF CONTENTS
Chapter 1 Overview....................................................3
Features ............................................................................ 4
Description.........................................................................5
Chapter 2 Installation .................................................7
Package Content................................................................. 7
Wall installation .................................................................. 7
Connections ....................................................................... 7
Mandatory connections and activation ............................ 7
Other Connection Options ............................................. 8
Power Supply...................................................................... 9
Power Sources ............................................................. 9
Installing and Replacing the Batteries ............................. 9
Chapter 3 Operation..................................................10
Displaying Measurement Values ......................................... 10
Printing............................................................................ 11
Automatic Continuous Real-Time Printing...................... 11
Style of Automatic Continuous Real-Time Printing.......... 12
Printing on-Demand Reports........................................ 12
Advancing and Replacing the Printing Paper.................. 13
Erasing all the readings from internal memory..................... 14
Copying data to external memory....................................... 14
Alarm Indicators ............................................................... 15
Chapter 4 Changing Settings ......................................17
Loading Settings from External Memory .............................. 18
Setting Sensor Types ........................................................ 18

Temperature recorder and printer ii
Sensor Calibration / Temperature Channel .......................... 19
Renaming Channels for Sensor Identification....................... 20
Alarm Settings .................................................................. 20
Setting Alarm Limits to Sensor ..................................... 21
Setting up Additional Alarm Events............................... 22
Setting up SMS Alerts and Communication Failure ......... 23
Setting Printing Time and Daily Min/Max Reset .................... 24
Setting Temperature Scale and Date Format ....................... 24
0Setting the Time and Date ............................................... 24
Changing the Password ..................................................... 25
Renaming the Device for Identification ............................... 25
Changing the Sampling Rate.............................................. 26
Overwriting Old Data of External Memory ........................... 26
Changing the Data Server (Portal) Address ......................... 27
Chapter 5 VLTSC Portal Operation ..............................28
Creating an Account and Registering on the Portal............... 28
Settings, Viewing Reports and Exporting Data in the Portal... 29
Configuration –Settings Screen for On-Line Device.............. 30
Chapter 6 Solving Problems .......................................34
Appendix A Default Settings ....................................35
Appendix B Technical Specifications ........................37
Appendix C Accessories ............................................39
Appendix D Operating Menu .....................................40

Temperature recorder and printer 3
CHAPTER 1 OVERVIEW
▲VLTS –stores data, prints and alerts up to 4 channels. Temperature/ humidity/ 4-20 and
contact switching.
▲VLTSC –stores, prints and alerts with a SIM slot and a GSM cellular modem for viewing
and backing up data, remote settings, GPS geolocation, SMS and email alerts.
▲Temperature sensor –temperature sensor only (electronic)
▲Humid/Temp –temperature and humidity sensor (in one body)
▲Humidity sensor –configuring the temperature and humidity sensor to measure
humidity only.
▲Contact switch sensor –on/off sensor between wires 1-6, blue and white.
▲4-20/0-20mA/0-5V/0-10V sensor –Analog transducer sensor corresponding to
representative figure.
▲USB –standard for connecting computer peripherals for data transfer or storage.
▲Micro-SD –A miniature memory card for transferring or storing data.
In addition, in the VLTSC model only:
▲Micro-SIM –card for communication in a cellular network.
▲GPS –geolocation system on a map.
▲GSM - standard for cellular communication networks.
▲SMS –messaging service (text) on GSM networks to a mobile phone.
The VLTS devices record, store and print up to 35,040 readings at predefined time intervals for
4 data sources or 4 cooling systems simultaneously. The VLTS device triggers an alarm when
the temperature/reading value rises or falls below the set range. The alarm can operate
immediately when the reading is off the set range, or after the reading stays out of the set
range for a set time (delay). The VLTS device enables various printing modes, including the
ability to store data in internal memory and also on a memory card or disk-on-key, and it sends
an alarm to an external device through a connection to the alarm contacts on the device.
In a VLTSC device, after connecting the GSM/GPS antenna and installing a compatible micro-
SIM (not included), the data can be sent by cellular communication for backup and viewing
through a compatible web portal, adjust settings remotely, view the unit’s location on a map
and automatically alert by SMS up to 5 recipients and similarly, through the email portal, alert
up to 5 recipients through the e-mail portal.
The sensors’reading range
Temperature range –with temperature sensor: - 40ºC to +130ºC at ±0.5ºC accuracy.
Temperature range –with temperature and humidity sensor: -40ºC to +130ºC at ±0.5ºC
accuracy.
Relative humidity range –with temperature and humidity sensor: 0% to 100%, 10%-90% RH
at ±2% accuracy.
at the rest of the range: 90.1%-100% / 0-9.9% RH at ±4% accuracy.
Contact sensor –indicates on/off switch status.
Voltage sensor –analog Transducer 0~10, 5~10 Vdc and correspondence to representative
value, ± 0.5 F.S.
Current Sensor –analog Transducer 0~10, 4~20 Adc and correspondence to representative
value, ± 0.5 F.S.
Response time –sensor: voltage and current: 1 second; for contact sensor: detects change of
state up to 10 seconds.

Temperature recorder and printer 4
FEATURES
Table 1: Temperature Recorder and Printer –Features describes the VLTS features
with reference to the section and page in this manual that describes how to use the feature or set it.
Table 1: Temperature Recorder and Printer –Features
Page
Chapter, for more information
Feature
18
“Setting Sensor Types”
Various sensor types can be connected
21
“Setting Alarm Limits to Sensor”
Alarm and delay range settings for each sensor
26
“Changing the Sampling Rate”
Change sample rate, from 30 seconds to 120 min.
10
“Displaying Measurement Values”
Display of measured values, daily min/max values
24
“Setting Printing Time and Daily
Min/Max Reset”
Auto print daily min/max value report
24
“Setting Printing Time and Daily
Min/Max Reset”
Setting daily print and reset to min/max Values
11
“Automatic Continuous Real-Time
Printing”
Activate/deactivate automatic continuous printing
12
“Style of Automatic Continuous
Real-Time Printing”
Select a printing style from 4 options: graphic, small
text, large text or table
22
“Setting up Additional Alarm
Events”
Turn on/off internal buzzer in alarm events
11
“Printing”
Print reports and print device settings.
20
8
“Alarm Settings”
“Other Connection Options”
External Alarm Contact Port 1A.
22
“Setting up Additional Alarm
Events”
Alerts for low battery and printer out of paper
20
“Renaming Channels for Sensor
Identification”
Assign name for each sensor/channel.
25
“Renaming the Device for
Identification”
Assign name for each unit, vehicle/place number and
company name.
14
“Copying data to external memory”
Copy data to SD-card/ USB memory stick
24
“Setting Temperature Scale and
Date Format”
Change temperature units to Celsius or Fahrenheit;
Change date format to European or U.S.
9
“Power Sources”
10-30V operating voltage, 9V backup battery
9
“Installing and Replacing the
Batteries”
Up to 48-hour backup battery for reading & storage

Temperature recorder and printer 5
DESCRIPTION
Image 1 displays the connections at the front of the VLTS/VLTSC device.
Image 1: Temperature Recorder and Printer –Front View –Connections
1. Power input socket: 12-24V ac/dc
4. Dry contact for external alarm
2. Short contacts for muting internal alarm
5. Paper cover
3. Sensor input ports 3b, 3c, 3d 3a,
6. 9V Backup battery cover
Image 2 displays the connections at the rear of the VLTS/VLTSC device.
Image 2: Temperature Recorder and Printer –Rear View
7. Holes for installing on wall
8. *GPS antenna port, SMA port
9. *GSM antenna port, SMA port
10. Hole to secure hanging on wall
11. Micro-SIM cellular card slot
12. CR2032 clock battery housing
13. USB disk-on-key connection
14. Micro-SD connection
* Items 8, 9, 11 are available only in model VLTSC.

Temperature recorder and printer 6
Image 3 displays the buttons and display of the VLTS/VLTSC device.
OK
EXIT
PRINT
FEED
Turn on/off with
long press,
Confirm
Mute buzzer,
Stop report,
Exit
Print and
reports
menu
Paper advance,
Delete character
<Backspace
Image 3: Temperature Recorder and Printer –Buttons and Display Panel
Image 4 displays the display panel of the VLTS/VLTSC device.
Image 4: Temperature Recorder and Printer –Display Panel
Indicator lights:
On / flashing upon
Backup power
Low Backup battery / flashing
at low clock battery
No
paper
Alarm
Daily min/max
menu, settings,
and data copying
Channel 1
Channel 3
Channel 2
Channel 4
In VLTSC only: GPS reception signal, cellular signal

Temperature recorder and printer 7
CHAPTER 2INSTALLATION
This chapter explains how to install the VLTS device, including:
▲Package content –the list of contents in the VLTS package
▲Installation options –options of installation, connection and hanging the device on the
wall
▲Connections –description of the required connections and additional connection options,
including basic operating instructions for the VLTS device
▲Power –the electrical power requirements, the Backup battery operating capacity and how
to install or replace batteries.
PACKAGE CONTENT
The VLTS package includes the following accessories:
Table 2: Package Content
Part Number
Quantity
Description
VLTS
VLTSC (with internal cellular modem)
1
VLTS unit with up to 4 measurement channels
VLS CABLE (143168)
VLT PROBE
VLTSHPROBE
-
1
-
Event sensor, 10 meters (ON/OFF)
Temperature sensor, 10 m.
Temperature and humidity sensor, 10 m. meters
VLPAPER
2
(1 installed)
57 mm wide thermal paper roll, 40 meters long
for 17,400 lines of text
VL220 (Europe plug)
1
Transformer adapter from 230V to 12V 2A
143175
1
12-30V DC plug wire for connection in vehicle
VLBAT
1 (installed)
3V lithium battery (CR2032)
VLTSMANUALH (143387)
1
User guide in English
VLANT
1/-
GSM/GPS integrated antenna for VLTSC
VLGSM
1/-
GSM “finger”antenna for VLTSC
VLGPS
1/-
GPS “finger”antenna for VLTSC
WALL INSTALLATION
VLTS may be used as a mobile unit or it may be installed on a wall.
▲Wall installation –Hang the VLTS directly on the wall, on 2 horizontal screws 145 mm
apart and secure with a third screw to the wall under the paper rolls (3 screws and dowels
are provided in the bag).
CONNECTIONS
This part describes the cables that must be connected to enable use of the VLTS and other
accessories that may be connected for other, additional applications.
Mandatory connections and activation
To connect and operate the VLTS:
1. Connect the transformer to the power supply and the plug in the wire to the 12V
socket (item 1 in Image 5).

Temperature recorder and printer 8
2. Connect the temperature, temperature/humidity sensors, circuit closing and other
sensors to the sockets (items 3a, 3b, 3c, 3d in Image 5) from left to right.
3. To turn on, press the key for 2 seconds (item OK item in Image 3), the green
POWER light and the display will turn on. After a few seconds, the measured
values will appear on the display.
Image 5: Connections
Other Connection Options
Other accessories (not included in all models) may be connected, as follows:
▲External alarm contact –pair of ¼ terminals of an internal alarm relay, N.O. 1Amp 12V
(item 4 in Image 5). The contact closes in alarm events.
▲Micro SD card –(not included) for saving a backup file to the measurement data in
addition to the internal memory and saving device settings for copying to another device
(Item 14 in Image 2). Recommended memory: 4GB to 16GB, Class 4 at least. In
installation, the contact surfaces are up. Press in to release the lock.
▲USB disk-on-key –(not included) for saving a backup file of the measurement data in
addition to the internal memory and saving the device settings (for copying to another
device). (Item 2 Image 2). It is recommended to install a USB 2.0 disk-on-key up to 16GB.
▲Remote alarm buzzer muter –(not included) by connecting 2 wires from the pair of the
buzzer muting contacts (item 2 in Image 5) to the momentary spring button. In an alarm, a
momentary short circuit between these contacts will silence the buzzer for this event (only
the buzzer!).
In the VLTSC model (GSM/GPS cellular model), the following can be installed also
when the device is turned off:
▲GPS antenna to the GPS port (item 8 in Image 2) to display the location of the VLTS unit
on the map in the portal.
▲GSM antenna to the GSM port (item 9 in Image 2).
▲Micro-SIM Card (not included). Insert into the SIM slot (item 11 in Image 2), with the
contacts facing downward / toward the wall. For SMS notifications through an internal
cellular modem, data export to cloud and remote settings through the portal.

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Power Supply
The VLTS device is powered from 10-30V ac/dc 2Amp power source, 9V backup battery in case of
main voltage drop and a CR2032 clock battery for the clock and settings. All batteries are
replaceable.
Power Sources
The VLTS is powered at the main power input from a 10-30V ac/dc 2Amp power source. When
the VLTS uses the main power source, the POWER green LED is turned on.
At an external voltage below 10V, or at ambient temperatures above 65ºC, the VLTS will switch
to backup mode on a 9V battery (if installed), 9V lithium 1200mA is recommended.
In backup mode, the VLTS displays and stores readings in the memory and does not print. The
POWER indicator LED will flash slowly. The display lighting and buttons will turn off. The buzzer
cannot be turned off in an alarm event.
When voltage return above 10V and the ambient temperature is below 65ºC, the POWER light
will remain lit. If the printer was previously active, it will automatically complete the report of
the readings that were stored in the memory and were not printed when the VLTS switched to
backup mode.
Installing and Replacing the Batteries
The VLTS uses two batteries, as follows:
▲CR CR2032 lithium battery –for saving the settings and the clock. It is located at the
back of the device. When the LOW BATT light flashes, replace it to a new one, and check
and update the settings.
▲9V backup battery –1200mAh. It is recommended to replace it after every power outage
(battery not included). Used for backup for about 48 hours during a power outage. When
the LOW BATT light is on continuously, replace it with a new 9V battery.
To install or replace the batteries:
1. Press the battery cover and pull out, as shown in Image 6.
2. Install the batteries as indicated, paying attention to the polarity marks (-/+) and
place the cover.
Image 6: Installing or replacing batteries
-
+
CR2032
3V clock
battery
V9 backup battery housing.
1200mAh recommended
(Battery not included)

Temperature recorder and printer 10
CHAPTER 3 OPERATION
This chapter explains how to operate the VLTS, and includes the following topics:
▲Displaying reading values
▲Printing
▲Deleting all readings from the internal memory
▲Copying data to external memory
▲Alarm indication
DISPLAYING MEASUREMENT VALUES
To turn on the VLTS, press the key for 2 seconds. The system version will be displayed for 5
seconds and then the 4-channel screen and the POWER light will be on. If a channel deviates
from its settings, the channel value will flash, the ALARM light will come on and other alerts, if
set, such as alarm contact, buzzer (to mute, press the key), and in the VLTSC cellular
model, also SMS messages, will be activated. For " Setting Sensor Types ", see page 18. For Alarm
Settings , see page 20. The channel name in the display consists of a letter representing the
sensor and the number of the channel. The memory contains up to 35,040 recent readings per
channel. The data range in the memory depends on the sampling. For example: in 15-minute
sampling, the memory will contain data from 4 channels, one year back.
Viewing the current reading, daily minimum and maximum
▲Displaying current value –after switching on, 4 channels will appear on the display
simultaneously. In the VLTSC cellular model, a graduated sign indicating cellular reception
strength will also show, and in the center of the lower row, also an indication for GPS
reception.
▲Displaying the daily minimum/maximum value (min/max) –Press , and sensor
value, Daily min and max will be displayed. Press to confirm. The minimum and
maximum values for channel 1 will be displayed.
To display minimum and maximum values for another channel (1-4), scroll with / .
▲To exit and view the 4-channel screen –double-press . If for 30 seconds nothing is
pressed, the current value of the 4 channels will be displayed.
Minimum and maximum data are automatically reset every day. They can be printed
automatically every day before they are reset. The default reset time is 8:00 AM. To change
the time and set printing daily min/max data and reset, see “ Setting Printing Time and
Daily Min/Max Reset ”on page 24.
Notes: The minimum and maximum data in memory are the extreme values from continuous
measurement and therefore there may be more extreme values than the sampling
data in memory.
The dry circuit/contact channel will show which of the ON/OFF events took place.
Display Format of values and alerts
The display shows 4 channels simultaneously. Each channel has a name that includes the channel
letter and number, the measured value and the units of measurement. The channel letter
represents the type of sensor: H - humidity; T - temperature; V - voltage; I - current; S -

Temperature recorder and printer 11
contact; P - power supply voltage to the device; X - unmeasured channel. The channel
number is the physical entrance that the sensor is connected to, from left to right (for an
integrated temperature and humidity sensor, both will have the same number). The
temperature units are displayed according to the scale selected (Celsius or Fahrenheit), or
other markings for “special”sensors for low voltage or current. When a channel exceeds the
alarm threshold settings and delay time, the measured value will flash and a red ALARM LED
will lit over the display. If a sensor is flawed, not connected, or does not match the channel
settings, the value ERROR will be displayed. Examples:
▲Temperature: T1: 130.0C T2: -39.9C (the degrees in Celsius/ Fahrenheit)
▲Relative humidity: H1: 0.1% H2: 99.9% (marked with the letter H and the units in %)
▲Channel set to be (electric) contact in an open/closed position: S4: ON/OFF
▲Channel set to be without a sensor will show: X4: NoSens
▲Faulty/not connected/not set up correctly: X4: ERROR flashing
PRINTING
For the print menu, press or by scrolling / , Find Print submenu and press
to confirm. Select one of the 5 printing options below by pressing / and
press to Print the chosen report.
▲Print, Real-time printing –continuous real-time printing .
▲Print, Delivery ticket –printing a 4-channel report of current reading.
▲Print, 4ch 300 records –printing a 4-channel report of 300 readings.
▲Print, Spec & programming –printing a report of all the settings in the device.
▲Print, Daily min & max –printing a min/max report (since the last reset).
Note: accessing the print menu does not require a password.
Automatic Continuous Real-Time Printing
Print, Real-time printing –automatic, continuous printing in real time of each
sampling in a line according to the sampling rate. For “Changing the Sampling Rate”,
see page 26. The automatic printing style can be selected from 4 styles by scrolling
with / , as follows :
Disable –without automatic printing (a report may be printing manually)
4 Ch Table –a continuous report, 4 channels per line, in a table format
1 Ch Table –a continuous report, 1 channel, date and time on each line.
1 Ch graph –a continuous report, 1 channel, graphic, and alarm limits
1 Ch large font –a continuous report, 1 channel, in large print/font.
To confirm, press .For a 1-channel report, select from channels 1-4 by scrolling /
and press for confirmation. The selection will be saved, and the prompt Please wait.
Saving settings will be displayed, then Settings saved will be displayed and printed,
followed by the measurement screen.
If automatic printing is selected, the report will be printed line by line at the sampling rate.
Notes: The menu options that are not selected are shown with * at the end of the line.
When printing a report, the prompt “Printing”will be displayed. At the end of the
printing, the normal display will be returned.

Temperature recorder and printer 12
In the print menu, if you do not press any button for 30 seconds, the VLTS will
revert automatically to the main measurement display without saving the changes.
Even when printing one channel, the VLTS stores all the channels in memory.
The ^ or v mark in the report indicates reaching the reading limit, regardless of
whether the alarm is on.
Style of Automatic Continuous Real-Time Printing
 4 Ch Table printing prints all 4 channels on a line, as follows:
12:01 123.4C^ 123.4C^ 123.4C^ 123.4C^
T1ABC T2ABC T3ABC T4ABC
Instrumnet123 31/12/21 EVERY 1 MIN
In this printing style, 2 information lines will be shown after every 12 readings lines,
stating: channel names, device name, date and sampling rate.
Printing in the 1 Ch Table style prints in the small font style. Each line of data
represents one sample and includes the following details: vehicle/site name, channel
symbol, date, time, values and limit mark if reached, as in the following:
Office1 T1 31/12/21 12:00 123.4C^
In this example, the vehicle/site name is office1 (see: “Renaming for Device
Identification”in page 28); the channel symbol is T1; the date is December 31,
2021 (see “Setting Time and Date”in page 27); the time is 12:00 AM; the
temperature is 123.4ºC;and the character ^ indicates reaching the upper limit.
1 Ch graph style printing style prints one graph channel. The value appears in
each line on the right and is printed on a graph as a dot with a line that connects it
to a dot in the previous line. The defined maximum and minimum limit range are
shown as dashed vertical stripes on either side of the graph. Each 12th line is
printed in the small font style. If the measured value has reached the defined upper
or lower limit, the character ^ or v will appear on the right side of the relevant line.
1 Ch large font printing style prints one channel in large font. Each sampling in
one line includes the following details: channel symbol, day of the month, time, the
value measured and alert for reaching the upper or lower limit (v\^). For example:
T1 28 23:12 123.4C ^
Printing on-Demand Reports
The VLTS has 4 types of structured reports, ready for printing on demand at any moment.
Press , select the report type by / , and press for confirmation.
Or scroll through the main menu by / , and select the Print submenu, then press
to confirm. Select the repot for printing by / , and press for confirmation.
To stop printing the on-demand report at any time, press . The printing will stop
with the following text message: THE REPORT STOPPED BY USER.
▲Print, Delivery ticket –printing current reading report from all channels (such report
is generally attached to bills of lading). Press , select that report by / , and
Press for printing, or press twice to return to the measurements display.
Device
name
Reading time
Date
Sampling rate,
every 1 minute
The temperature at the 4 channel is
123.40C and has reached the upper
limit (^) regardless of the alarm being
on or at the end of the delay period
Channel
name under
the reading’s
column

Temperature recorder and printer 13
▲Print, 4ch 300 records –printing a 4-channel report up to 300 entries. In this
menu, select by the / one of the time windows (from –to) and press
for printing it. To stop printing, press . For exit to the measurements
display, press twice or / to select another report.
Note: The records in the memory are automatically divided into groups of up to 300
lines (for the convenience of selecting the time window). Each group is
marked with date and time for the first and last record. The bottom of the
report will state in print Start 4ch memory report (start of a 4-channel
report from memory). The printing order will descent from the newest reading
to the oldest (the opposite of the normal print order). The report will end state
at the end: 4ch memory report end.
▲Print, Spec & programming –printing a full status and settings report of the
VLTS. Press for printing or / to select another report or press
twice to return to the readings display.
▲Print, Daily min & max –printing a Min/Max report (from last reset). Press
and select with / the Daily min & max report. Press for
printing or / to select another report or press twice to return to
the readings display.
The Min/Max data in the memory are the extreme values from continuous
measurement. Therefore, they may be more extreme values than the sampling
data in memory.
The Min/Max data in memory are automatically reset every 24 hours at a fixed
time. The default reset time is 8 AM.
You can set up automatic printing every day before the reset. To set and
change the Automatic daily min/max print time and memory reset, see
“Setting Printing Time and Daily Min/Max Reset”at page 24.
When the VLTS is set to print readings automatically, but at that same time any
report is printed, then at the end of the printing of the report, the VLTS will
complete printing all the value readings measured at the time of printing the
report so that there will be no missing measurements in the print.
Advancing and Replacing the Printing Paper
The VLTS device uses only thermal paper for printing! The roll is 2”wide (57 mm), and
printing is done only on one side, by heat instead of ink.
Red color on the margin of the paper roll means that the roll of paper is nearing its end.
In that case, replace the paper roll before it reaches the end, so as to prevent it from
jamming the printer.
To replace a roll of paper, first release the old roll:
1. Press as many times as you like to advance the paper out.
2. Tear out the last printout.
3. Open the paper lid and remove the rest of the roll. If the paper is caught in the
printer, cut the paper between them. Be careful not to damage the rubber roller.
4. Press to remove any remaining paper from the printer.
Note: When out of paper, if an out-of-paper alert was set, a yellow LED NO
PAPER will turn on, the alert contact will close, the prompt Attention! Out of
paper will be displayed, and the buzzer will go off, if so set. To mute the buzzer,
press . For the readings display, press .
5. Before placing a new paper roll, remove a length of about 10”from it, as the zinc
that it contains gradually depletes from the paper during the long exposure to heat
and light.

Temperature recorder and printer 14
6. Cut the end of the new roll diagonally (with a sharp end on the center).
7. Place the new paper roll in the paper housing and push the cut paper
lead into the printer, under the black rubber roller. The printer will
sense the paper and advance it slightly.
8. Press while pushing the paper into the printer until the printer
pulls it on its own up to the other side. After the new paper roll is in
place, the buzzer alert and the NO PAPER prompt (if set) will turn off.
ERASING ALL THE READINGS FROM INTERNAL MEMORY
The VLTS save up to 35,040 recent values of each channel. To erase the readings:
1. Press / until you reach the Erase all data menu.
2. Press to confirm access to erase memory. Enter password: will be
displayed.
3. Enter the password (4 characters consecutively). If you have not yet set a
password, enter the default password: , , , .
4. The prompt Please wait, erasing internal mem will be displayed.
5. After about 6 minutes, the confirmation All data erased from internal
memory will appear.
6. After all data is erased, the menu Erase all data will be displayed again.
7. Press to exit the menu and to display the current values.
COPYING DATA TO EXTERNAL MEMORY
When connecting an external memory device such as a Micro-SD card or a USB memory
device, the VLTS will identify it and display the free memory in it within 2 seconds. For
example: USB inserted! Free: 1566304 KB will appear on the display. If the device is
full, the prompt Memory full! will appear.
The external memory prompts will appear, if YES was entered in the following 3 alert
submenus (see “ Setting up Additional Alarm Events ” see page 22):
▲USB Memory Full
▲SD Card Full .
▲Copy Prog Print Ended
When there is available capacity in the external memory, a new text file will be created with
the date and the time of interfacing as the file name. All the readings will be continuously
recorded at the sampling rate. The data in the file contain: device name, names of the 4
sensors, sampling date and time, values measured by the 4 sensors and the measurement
units. The file may be opened in Excel.
In Copy to mode, 2 files are created on the external memory. A configuration file in a TXT
format, with the date and time of its creation as the file name, for example 27-11-19-20-
17.TXT, and a second file in DAT format, whose name begins with memory and includes
the date and time of the last record saved in the file, for example: memory-27-11-19-
20-17.DAT, which represents the date 11-27 -19 and the time 20:17. The DAT file contains
all the readings consecutively at the sampling rate. The data include: device name, sensor
names, sampling date and time, values measured by the 4 sensors and the measurement
units, and the character V or ^ is an excursion from the range was recorded. The DAT file

Temperature recorder and printer 15
can be opened in Notepad or Excel, which will automatically sort out the data in columns,
or the data may be sorted into columns upon the file opening, such as:
To get these columns in Excel:
Copy to: VLTS has 3 ways of copying the data, as follows:
▲SD-Card –to copy the data to a micro-SD card, scroll with / until you reach
Copy to SD Card and press . The prompt Please wait, copy to SD card will
appear on the display. After the copying, the prompt All data saved to SD Card will
be displayed and printed. If the copying fails, the notification Error while coping to
SD card will be displayed and printed.
▲USB Memory –to copy the data to a USB stick device, scroll with / until you
reach Copy to USB memory and press . The prompt Please wait, copy to
USB memory will appear on the display. After the copying, the prompt All data
saved to USB memory will be displayed and printed. If the copying fails, the
notification Error while coping to USB memory will be displayed and printed.
▲Server –copying data to an Internet server or portal is only possible in the VLTSC
model with an active micro-SIM card installed. Using / , select Copy to Server
and press. . The prompt Please wait, copying to Server will appear on the
display. After the copying, the prompt All data saved to Server will be displayed and
printed. If the copying fails, the notification Error while coping to Server will be
displayed and printed.
▲Note: when there is no card or when copying fails, the prompt Error while copying
will be displayed. If the printer is active, the operation notes displayed will also be
printed. It is recommended to use memory devices of up to 16 GB.
ALARM INDICATORS
A VLTS/VLTSC device has 3 alarm indicators, and a VLTSC device can also be set for
notification by SMS and by email through the portal. In each of the alarm events set –Alarm
- YES –the following indicators will always be activated automatically: the alarm relay
contacts will close, the ALARM light will come on and a notification will be displayed.
To delete an alert notification, press to confirm (does not deactivate the alarm
contact).
To mute the alarm buzzer, Press (does not deactivate the alarm contact).
For “ Setting Alarm Limits to Sensor ”see page 21.
For “ Setting up Additional Alarm Events ”see page 22 .

Temperature recorder and printer 16
▲There are alarms that activate an internal buzzer. To mute the buzzer, press or
press the mute button of an external horn (optional). See “Other Connection Options”
in page 8. The factory default is a muted buzzer. The buzzer muter only disconnects
the buzzer! It does not affect other alarms.
▲Displayed channel will flash when the channel send an alarm.
▲Alarm LED –above the display, will be on to indicate any alarm event.
▲N.O. Relay contacts –every alarm events will open/close the 1A alarm relay (it is
normally open). It is possible to connect an external alarm device (not included)
through the alarm relay contact. See item 4 in Image 5, see on page 8.
The following events will activate the alarm (if set):
▲Disconnected sensor –if a sensor is disconnected or not set, ERROR will be
displayed.
▲Channel Alarm limit –If the measured value deviates from the set maximum or
minimum limit per a consecutive time period that is equal to the delay time set (if set)
the alarm relay will be activated, the alarm LED will light and the internal buzzer (if set)
will go off.
▲Out of paper –If the paper in the printer runs out, an internal buzzer will go off (if
set), an alert will be sent to an external device through the relay contacts (if set) and
the Out of Paper LED will be lit.
▲Faulty sensor –a plashing ERROR prompt will be displayed for the channel. The
alarm LED will be lit, an internal buzzer will go off (if set) and the alarm relay will be
activated.
▲Low Backup/Clock battery –an internal buzzer will go off (if set), the alarm relay
will be activated, the LOW BATT LED will flash, and an alert will be displayed.
Image 7: Close-up of the connection panel
“Dry ”contact
relay for
external alert,
up to 1A
Internal
buzzer muter
contacts

Temperature recorder and printer 17
CHAPTER 4CHANGING SETTINGS
This chapter explains how to change settings of the VLTS device. Settings are password-
protected. To change settings, scroll with / until you reach Settings Submenu and
press . When the prompt Enter password appears, enter the password. The factory
default password is a string of 4 characters, in this order: , , , . To
change the password, see “Changing the Password”at page 25. Upon exiting, or after 30
seconds without pressing any key, the settings entered will be automatically saved. A beep
will sound and Please wait saving settings will appear on the display. If the printer is on,
Settings saved will be printed, and the VLTS will revert to reading mode.
In VLTSC devices, settings can be changed also through the portal. See page 30.
To change settings in VLTS, follow these instructions:
1. Press / until the Settings submenu appears.
2. Press to enter the settings submenu. Enter password will be displayed.
3. Enter the password (4 characters). If you have not yet changed password, enter the
default password: , , , . You will be prompted Load
configuration file, which is the first option in the settings submenu, and which
enables to load the settings from an external memory device.
4. There are 13 submenus in a VLTS device. To navigate between them, use the
/ keys. The menus can be scroll forward or backward.
These are the 13 items in the settings submenu (ascending order ):
Load configuration file –load settings from external memory
Set Sensor type –set the sensor type for each channel
Set Calibration –calibrate sensors / temperature channel
Set Channel name –rename channels to identify sensors
Set Alarms –set alarm events and limits
Set Daily Min/Max Print –set daily minimum/maximum report printout
Set Server –set APN address for server
Set Scale/Date format –set temperature unit and date format
Set Clock and Date –set the date and time
Change Password –change the password
Set Unit, Veh … name –rename unit, company and ID number
Set Sampling Rate –set the sampling rate
External Memory Overwrite –overwrite old data when external memory is full.
Notes:
−See a full diagram of the Operating Menu in Appendix D, page 40.
−See Default Settings in Appendix A, page 35.
−Only changed settings confirmed by pressing will be saved, even though by
automatically exiting from the settings menu, Settings saved is displayed or printed.
−To select an item from the menu, press , and the first item will be displayed.
−Variables in the settings that can be changed but have not been selected will be
marked with an *.
−To save and exit the changes in the settings, you must press .

Temperature recorder and printer 18
LOADING SETTINGS FROM EXTERNAL MEMORY
Every time Settings saved is displayed upon exiting, the settings menu, a settings file,
named Config is saved in the external memory (USB or micro-SD, if installed). The Config
configuration file can be uploaded to any other VLTS device. The file does not copy ID
number, date, time and calibration data.
1. To load all the settings to the VLTS from an external memory device, find the Load
configuration file in the Settings submenu and press .
2. Load config. file will be displayed, and below it, flashing, one of the following options
will show: from USB memory or from micro-SD card. Select the appropriate option
by / or press to confirm.
Note: If the VLTS device fails to read from the selected device, an error message will be
displayed: Reading from… failed and the device will revert to the readings screen.
3. When loading the settings, the message Load config. file will be displayed for about
30 seconds.
4. After loading, the settings will be saved and Please wait saving settings will be
displayed for about 10 seconds, after which the display will revert to the readings
screen.
SETTING SENSOR TYPES
▲Temperature –temperature sensor only
▲Humid/Temp –an integrated temperature and humidity sensor, which sends data to 2
channels
▲Humidity –setting an integrated temp. and humidity sensor to measure humidity only
▲Contact Switch –on/off sensor for opening a dry contact (electric)
▲VDC 0-10Vdc –dc voltage sensor, can be set for a unit and correlation
▲VDC 0-5Vdc –dc voltage sensor, can be set for a unit and correlation
▲IDC 0-20mAdc –dc voltage sensor, can be set for a unit and correlation
▲IDC 4-20mAdc –dc voltage sensor, can be set for a unit and correlation
▲Input power –measures the voltage supplied to the VLTS device.
▲No sensor –channel without a sensor (the device will not read data from this channel)
The VLTS device has 4 input RJ45 ports to sensors (items 3a-d in Image 5). One sensor can
be connected to each of the ports according to the following list, and the sensor must
be configured accordingly.
1. Press /for the Setting submenu.
2. Press to confirm entering the Setting submenu. Enter password will be displayed.
4. Enter password (4 consecutive characters). If you have not yet changed the password, use
the default password: , , , .
5. Press / until the Set sensor type menu is displayed, and press .
6. The channel numbers (1-4) for selection will appear, for example Select Channel No. 1.
To change the channel number, press / until the desired channel appears, then
press .
7. The sensor name, such as Sensor 1 type will appear, and the type of sensor set for the
channel. To change the sensor type, press / . When selecting, * will appear to the
right of the sensor type not yet selected. To confirm the selected sensor, press , and a
confirmation, such as Channel No. 1 set,will appear. To select another channel number
to configure the sensor, press / or to exit.