PEL MostraLog User manual
6 Left paper clip
button (▲)
Next menu item, confirmation
7 Right paper clip
button (+)
Change submenu settings
8IR receiver IR receiver for the remote control
9SD card slot Slot for the microSD-card
10 Mini-USB port Connection to PC or power supply via power
supply unit
11 Locking push Button for opening and locking the back of the
housing
12 Sensor opening Opening for the internal sensor.
Do not cover this area!
13 Sensor input Socket for external humidity/
temperature sensor (accessory)
14 Alarm output Socket for alarm cable (accessory)
15 Battery compart-
ment
Inserting and replacing the batteries
16 Battery
position
symbol
Shows the correct polarity of the
batteries
MostraLog
Datalogger for temperature and humidity
Manual
Description
MostraLog is a thermohygrometer and data logger. The LCD displays the
current temperature and humidity. The device records temperature and
humidity to an inserted microSD-card.
MostraLog is used to monitor humidity and temperature during the storage
and exhibition of climate-sensitive objects, such as art work or food.
MostraLog offers accuracy of ±2% relative humidity (RH) in the range from
10 to 90% RH, and of ±0.7°C in the range from 0 to 60°C. The device’s unique
calibration function allows readjustment. Readjustment requires an optional
remote control and calibration set.
An external humidity/temperature sensor can also be connected. If this is
the case, the display shows the external sensor’s values. However, the data
from both the internal and the external sensor are stored, making MostraLog
a four-track data recorder.
The device’s alarm output can be connected to an alarm system. It will be
activated as soon as the defined adjustable temperature or humidity limit
values are reached.
The low power consumption provides a battery life of up to two years
(depending on measurement interval and device settings). The data logger
can also be powered with a standard USB power supply.
MostraLog can be mounted on a wall with two screws. When the unit is
slotted in the wall-mount, the device itself and the microSD-card are
protected against theft by a concealed security mechanism.
The device can be read out and configured via a USB cable using the PC
software provided. However, settings can also be adjusted directly on the
device or via an optional IR remote control.
One can also read out the data by removing the microSD-card and evaluat-
ing the data on a computer using the SD card reader.
Device overview
1Temperature in °C
or °F
Shows the current measured value
2Relative humidity
in
Shows the current measured value
3!Alarm Appears as soon as a limit value has
been exceeded
4Recording Appears as soon as a microSD-card
is inserted (recording starts
automatically)
5Battery capacity Display Residual capacity
70 - 100%
40 - 70%
10 - 40%
Replace batteries
6 8 7
1 2 3 4 5
9 10 12
16
13
14
15
11
From www.preservationequipment.com
Scope of supply
MostraLog · Batteries (2 x AAA) · microSD-card · microSD adapter (1 x per
shipment) · Software for free download · Paper clip for device buttons
Accessories
IR remote control · External sensor incl. cable 2m or 5m · Alarm cable 1.8m
with open ends · Calibration set incl. boxes and calibration salts
Initial operation
Use a pen (e.g. ballpoint pen) to open the device. Push the round button at
the back and simultaneously slide the back of the housing to the left. Putting
the thumb into the USB recess may help.
Insert 2 AAA batteries into the battery compartment. Ensure correct battery
position according to the battery position symbols.
If you want to use the recording function, insert a microSD-card into the card
slot in the direction indicated by the arrow, with the labelled side facing up.
Make sure that the card is inserted completely.
Note: Recording of the measured values starts automatically after insertion
of the microSD-card. The symbol appears on the display. This may take
several minutes, depending on the selected measurement interval.
1. Push the locking button 2. Simultanously slide the back to the left
Wall mounting
To mount the device on the wall, use the notches provided in the lower
part of the rear of the device. The notches can easily be perforated, e.g. with
a small screwdriver. Use flat head screws to avoid damage to the batteries.
All connectors (alarm, external temperature sensor and mini USB) and the
opening for the internal sensor should be freely accessible. Use a pen or
crochet hook to remove the device from the wall bracket.
Setup
Configuration can be carried out using the buttons on the device, with the
IR remote control, or via PC software.
Conguration on the device
Push buttons are located on the front of the device, left and right of the
IR sensor. To prevent tampering, the buttons can only be pressed with a
paper clip or similar tool. The left button corresponds to the remote control’s
button arrow up ““. The right button corresponds to the remote control’s
“+“ button.
After 4 seconds without user input, the menu navigation aborts without
saving values and the display shows the current temperature and humidity.
Screw notch Screw notch
Conguration with IR remote control
1 Function LED Illuminates when a key is pressed
2 Contrast Changes the LCD contrast
(See menu “LCD“)
3▲Move up in menu
4+Increase value +
5-Decrease value -
6▼Move down in menu
7 Calibration Start calibration (see menu “CAL“)
Use the “” and “” buttons to scroll through the menu. The “+“ and “-”
buttons change settings.
The IR remote control detection time depends on the value of menu item“IR”.
1 2 3 4 5 6 7
Setup menu
MIN / MAX
Shows the measured minimum and maximum values since the last reset or
battery change.
RES - Alarm acknowledge (reset)
Confirms an existing alarm, i.e. the device deactivates the alarm output. The
device reactivates the alarm output again as soon as the alarm limits are
exceeded. A delay time can be set in the menu item “DLY” to prevent the
device immediately triggering an alarm (e.g. when the show case is open).
CLK - Date and time setting
Date and time adjustment in the order: YR: Year, Mon: Month, Day: Day, HR:
Hour in 24h format, MIN: Minutes. Confirm with button ”“, the display
shows “OK“.
Note: The device has no time zone information. To ensure that the times in
the PC software are displayed correctly we recommend entering Coordinat-
ed Universal Time (UTC). The PC software automatically sets the device time
as UTC. Thus local times can be calculated if the device is used to document
international transports across time zones. The PC software automatically
displays local times, based on the UTC time of the device.
Coordinated Universal Time (UTC) is Central European Time (CET) minus 1
hour and Central European Summer Time (CEST) minus 2 hours.
ALM - Alarm
Defines the alarm limits. First set MIN/MAX temperature, then MIN/MAX
humidity. Confirm with the ““ button. The display shows “OK“. The active
alarm limits are saved on the microSD-card and preserved even during a
battery change.
DLY - Alarm Delay
Delays alarm trigger, e.g. during transport to the device’s destination or
while a show case adjusts to the desired climate. Select a value in hourly
increments and confirm with the “▲“ button.
INT - Measuring interval
Defines the time interval for temperature and humidity measurement in the
range of 5 - 120 minutes.
C- F - Temperature unit
Changes the temperature unit from °C to °F. All settings (e.g. alarm limits) as
well as recorded values are displayed according the selected unit. Data on
the microSD-card is also stored in the selected unit.
IR - Infrared Receiver
Sets MostraLog’s remote control response time in the range of 1 - 5
seconds. If, for example, a reaction time of 5 seconds is selected, keys on
the remote control must be pressed for at least 5 seconds to be recognized.
Short intervals improve reaction time but considerably reduce battery life.
If no remote control is used, select “OFF“ for maximum battery life (factory
setting). When the IR receiver is switched off, you can operate the MostraLog
via the device keys or via the PC software.
Note: Some light sources (e.g. energy-saving lamps) generate flicker in the
non-visible IR range. This can make MostraLog constantly detect false IR key
presses and thus very quickly drain the device’s battery. Permanently deacti-
vate the IR receiver if the batteries are completely discharged after only a
few days.
LCD - Display contrast
Adjusts the contrast of the LCD display. Contrast is influenced by the
ambient light conditions and the reading angle. Press the “▲“, button, the
display shows “OK“.
Note: The weaker the batteries, the lower the display contrast. If the battery
charge level falls below 30%, the display contrast is set to maximum to
ensure readability even with weak batteries.
CAL - Calibration
A calibration set with two saturated calibration solutions (sodium chloride
and magnesium dichloride) is available for readjusting the MostraLog.
Detailed calibration instructions are enclosed with the calibration set. Select
the appropriate calibration point: NA (NaCl) or MG (MgCl2) and start the
calibration process with “▲“. The display shows “OK” after successful calibra-
tion. If an error occurs, the display shows “ERR“. Possible causes of errors are,
for example, contaminated calibration solutions or wrong media selection
(NaCl instead of MgCl2).
DEF - Factory setting (default)
Resets the unit to the factory settings. Note that the IR receiver is turned off
by default. Date and time will not be changed.
VER - Firmware version
Displays the firmware version on the device.
Conguration with PC software
When the device is connected to a PC by mini-USB cable, data can be read
out and the device can be configured with the MostraLog PC software.
Since the device is connected to the PC as a mass storage device, you can
also access the data using Windows Explorer. To do so, wait until “MostraLog
Device“ and a drive letter appear. Then you can access the device like a USB
stick and transfer the recorded data to the PC.
Note: If the device is connected to a PC via USB, the display is cleared and
only the message “USB“ is displayed to indicate PC control.
Note: Depending on the capacity of the microSD-card, it may take several
minutes for the drive letter to appear on the PC. Use low-capacity microSD-
cards to minimize access times.
Batteries and power supply
Note: Almost all instrument settings are retained after a battery change. Only
the date and time must be readjusted, either by connecting the device to
your computer (MostraLog takes the computer’s time) or manually via the
device menu.
MostraLog can also be powered via a USB power supply. In order to do
this, connect MostraLog to a standard USB power supply using a mini-USB
cable. Any batteries should be left in the device, but won’t discharge when
supplied via USB. The display shows “USB“ instead of battery charge status.
The USB power supply makes it possible to change batteries without
interrupting data recording. USB-power the device before removing the
batteries, and leave it connected while you replace the batteries. After you
have inserted the new batteries, the USB power supply can be disconnected.
It is also possible to connect the MostraLog permanently via USB to use the
batteries as backup batteries, e.g. during a power failure.
External temperature/humidity sensor
If an external sensor is connected, the display shows values from the external
sensor, otherwise the values of the internal sensor are displayed. Values from
both sensors are stored on the microSD-card in parallel, resulting in four data
tracks (internal/external temperature, internal/external humidity).
Technical data
Temperature
sensor Measuring range -18°C to +70°C (0°F to 158°F)
Accuracy ±0.5°C(5°C to 45°C);
±1°F (41°F to 113°F)
Resolution 0.1°C (0.2°F)
Humidity
sensor Measuring range 0 to 100% RH
Accuracy ±2% RH (10 to 90% RH)
Resolution 0.1% RH
Operating range -18°C to +70°C (0°F to 158°F)/
0% to 100% RH
Memory 2 GB microSD-card
Measuring interval 5 - 120 min
Start options Immediately
Alarm Min-/Max limits, low battery
Alarm output low side switch, digital signal
Data transfer USB or microSD-card
Battery 2 x standard AAA, replaceable
Battery life Up to 2.5 years at 23°C (73°F)
Housing ABS, black or white
Dimensions 58 x 47 x 21 mm (2,3 x 1,8 x 0,8 inch)
Weight 57 g (2 oz)
External sensor Cable 2m or 5 m; sensor head Ø 8 mm
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