MSR 255 Data Logger
Robust multi-talent with LCD screen

With up to five different sensors, four additional analogue inputs and an easy
to read LCD screen the compact MSR 255 offers maximum possible flexibility
and user-friendliness.
The measuring tasks undertaken by the user define the way in which the MSR 255 isconfigured: There is a choice of temperature, humidity, air pressure and light sensors(fitted internally within the case or externally on a cable) together with a sensor formeasuring acceleration in all three co-ordinate axes. Acceleration values can be measured at 3200 Hz and saved at a frequency of approx. 50 Hz following digital filtration.
In addition, the voltage of four further external analogue channels or sensors can also
be recorded. The analogue inputs feature an alarm output, multiple output switching
power supply and an input for starting and stopping data recording.
The memory capacity of the MSR 255 is over 2 million measurement parameters.
Thanks to its high-capacity lithium polymer battery the data logger is ideal for longterm data acquisition applications. The 4-row backlit LCD display has four individuallyconfigurable views. All acquired data can be quickly transferred to a PC or laptop via
the USB interface.
Technical data
Housing:
Size & weight:

Anodised aluminium industrial case (standard IP60, optional IP67 protection class), top-hat rail snapper (TS 35)
78 x 62 x 38 mm, approx. 222 g

Memory capacity:

Over 2 000 000 measurement parameters.

Operation:

Two keys for selecting functions and controlling data
recording
Four row LCD matrix display
3 colour LED to indicate data recording, alarm andcharge condition

Display:LED:
Integrated sensors:
Measurement rate (MR):
Storage rate (SR):Power supply:
PC software:

Rechargeable lithium polymer battery 2300 mAh
Free Setup, Reader, Viewer- & Online software(Windows XP / Vista / 7 / 8)

Interface:

USB (Mini-B)

Operating conditions:
Storage conditions:

MSR 255 with ext. sensors

Selection of different sensors for temperature, relative
humidity, pressure, light and 3-axis acceleration/position
1 /s to every 12 h (acceleration up to 3200 /s)
1 /s to every 12 h (acceleration up to 50 /s)

Standards:• Temperature -20…+65 °C• Temperatur +5…+45° C (ideal storage condition for thebattery)• 10…95% relative humidity, non-condensing
The MSR 255 complies with EU-Directives RoHS/WEEE

Measurement parameters for the sensors (internal and external)Your MSR 255 data logger can be fitted with up to five different sensors. If required,
you may select from the following external sensors in place of the corresponding internal ones: temperature, relative humidity, air pressure and light. The available cable
lengths are: 0.15 m, 0.4 m, 1.0 m and 1.6 m.
Measuredparameters

Working range

Accuracy

Measurement/
storage rateTemperature

int.: -20…+65°C±0.5 °C (-10…+65°C)

ext.: -55…+125°C±0.5 °C (-10…+65°C)±2 °C (-55…+125°C)

1 /s to every
12 h~23

External temperature sensor

ø5

1 /s to every
12 h

Air pressure
absolute, withintegrated
temperature

0…2000 mbar
absolute-20…+65°C±2.5 mbar(750…1100 mbar
absolute, +25°C)

1 /s to every
12 hoptional:
0…14 bar absolute-20…+65°C±50 mbar (1…10 bar
absolute, +25°C)

1 /s to every
12 h

3-axis-acceleration ±15 g±0.15 g (+25°C)

Acceleration:
50/s (3,200/s)
Position: 1 /s up
to every 12 hLight

max. sensitivity at
500 nm1 /s to every
12 h~23
ø6±2% rel. humidity(10…85%, 0…+40°C)±4% rel. humidity(85…95%, 0…+40°C)

External humidity sensor

55
ø19

Relative humidity 0…100%with integrated
rel. humidity
temperature-20…+65°C

0…65 000 lx

Options:

External air pressure sensor

Additional analogue inputs for connecting third-party sensors

Analogue Inputs

Technical data

Including an alarm output, multiple output
switching power supplyand an input for startingand stopping datarecording.

4 analogue inputs with freely selectable input configuration: 0…20 mA;
4…20 mA; 0…3.0 V; 0.5…4.5 V;
0…5.0 V; 1.0…6.0 V; 0…10.0 V;
0…12.0 V; 0…24.0 V
Resolution: 12 Bit
Measurement/storage rate:
1 /s to every 12 h~23
ø5It is possible to expand the range of possible applications for which your MSR 255
can be used by specifying four analogue inputs. These additional inputs allow external sensors for a wide range of measuring tasks to be connected. If required, thesethird-party sensors can be powered by the logger's internal battery. The power canbe automatically turned on before measurements take place with a pre-settable leadtime. This allows any necessary warm-up periods for the sensors to be taken into
consideration.

External light sensor

MSR Electronics GmbH
Mettlenstrasse 6aCH-8472 Seuzach
Switzerland
Tel. +41 52 316 25 55
Fax +41 52 316 35 21
info@msr.ch
www.msr.ch

Its flexibility makes the autonomous MSR 255 data logger ideally suited for the mostdiverse documentation and monitoring applications in industry and science.
Distributor:

07.14

Configure your ideal MSR 255 today –We will be pleased to provide you with prices and terms of delivery!