Vitrolife Log & Guard B:safe User manual

Log & Guard™ B:safe

Monitoring trolley for cryostorage

User manual

Log & Guard B:safe

User manual, first issue 2021.03.01/International/English

Log & Guard B:safe 
 
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Table of contents 
 
1Introduction............................................................................................................................4 
1.1 Limitation of liability.........................................................................................................4 
2Overview of the Log & Guard B:safe monitoring trolley .....................................................5 
2.1 Specifications of the Log & Guard B:safe monitoring trolley............................................5 
2.2 Unpacking and installation of the Log & Guard B:safe monitoring trolley.........................7 
2.2.1 Unpacking the Log & Guard B:safe monitoring trolley..........................................7 
2.2.2 Integration into the Log & Guard software............................................................8 
2.2.3 Assembly of Log & Guard B:safe components.....................................................9 
2.2.4 Installation of the optional low temperature sensor and alarm contact ...............14 
3Getting started –operation of the Log & Guard B:safe monitoring trolley......................15 
4Display of sensor data and sensor channels.....................................................................17 
4.1 Display of sensor data of the Log & Guard B:safe monitoring trolley: overview page ....17 
4.2 Display of sensor channels of the Log & Guard B:safe monitoring trolley: detailed 
channel view pages.......................................................................................................18 
5Configuration and calibration of sensor channels ............................................................22 
5.1 Configuration of the sensor channels of the Log & Guard B:safe monitoring trolley ......22 
5.1.1 Access to the configuration area........................................................................22 
5.2 Configuration of the weight sensor channel of the Log & Guard B:safe monitoring 
trolley............................................................................................................................23 
5.3 Single-point calibration of the weight sensor channel of the Log & Guard B:safe 
monitoring trolley...........................................................................................................27 
5.4 Configuration of the surface temperature sensor channel of the Log & Guard B:safe 
monitoring trolley...........................................................................................................29 
5.5 Single-point calibration of the surface temperature sensor channel of the Log & Guard 
B:safe monitoring trolley................................................................................................35 
5.6 Configuration of the surface temperature difference channel of the Log & Guard 
B:safe monitoring trolley................................................................................................37 
5.7 Single-point calibration of the surface temperature difference channel of the Log & 
Guard B:safe monitoring trolley.....................................................................................42 
5.8 Configuration of the calculated relative evaporation channel of the Log & Guard 
B:safe monitoring trolley................................................................................................43 
5.8.1 Setting the start time and interval duration for the evaluation of the relative 
evaporation rate.................................................................................................43 
5.8.2 Determining the threshold levels for the relative evaporation rate......................44 

Log & Guard B:safe

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5.9 Configuration of the optional low temperature sensor channel of the Log & Guard

B:safe monitoring trolley................................................................................................49

6Symbols and labels..............................................................................................................53

7Disposal of waste.................................................................................................................53

8Contact information.............................................................................................................54

Log & Guard is a registered trademark belonging to the Vitrolife Group.

Log & Guard B:safe

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1 Introduction

This user manual provides information on how to use the Log & Guard B:safe monitoring trolley for

cryostorage.

Log & Guard is an automated 24/7 monitoring system that was created and developed specifically

for IVF. The Log & Guard B:safe monitoring trolley enables the monitoring of the storage of

cryopreserved oocytes, sperm and embryos.

The Log & Guard B:safe monitoring trolley is to be combined with a Log & Guard controller

supporting wireless data transmission to collect and display the data, save them permanently and

send out text message alerts in case a cryostorage tank is malfunctioning. The Log & Guard B:safe

monitoring trolley can be added to any existing Log & Guard monitoring network with a controller

supporting wireless data transmission.

The product fulfils the requirements of EN 61326-1:2013: Electrical equipment for measurement,

control and laboratory use.

1.1 Limitation of liability

It is the sole responsibility of the clinic to ensure that cryopreserved material is kept safe at all

times, e.g. by having more than one safety system in place. Vitrolife assumes no liability for any

loss of or damage to cryopreserved material contained in storage tanks monitored by the Log &

Guard B:safe monitoring trolley.

Log & Guard B:safe

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2 Overview of the Log & Guard B:safe

monitoring trolley

Figure 1: Log & Guard B:safe monitoring trolley with storage tank.

2.1 Specifications of the Log & Guard B:safe monitoring

trolley

Figure 2: Log & Guard B:safe monitoring trolley: Plate with surface temperature sensor, holding

rods, bearing parts, skirt with access to alarm socket and battery case, and wheels.

Log & Guard B:safe

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Table 1: Specifications of the Log & Guard B:safe monitoring trolley

Reference number

14840/0213

Monitoring trolley

Ø 70 cm, H: 16 cm, weight: 20 kg

Holding rods: Ø 2 cm, H: 8 cm, for storage tanks with an outer diameter of 451 to

508 mm (most tanks with a volume between 25 and 60 litres)

Five wheels

Batteries

2 x LR20 (alkaline, high capacity)

Battery lifetime

Approximately 3 years for recommended sampling intervals

Sensor type

Weight

Surface temperature

Calculated relative

evaporation

Measuring range

0-100 kg

-199 °C to +50 °C

N/A

Accuracy

+/- 20 g

+/- 0.5 °C

N/A

Resolution

10 g

0.1 °C

N/A

Recommended

measurement interval

15-30 minutes

6-12 hours

(selectable range)

Calibration

By single-point calibration to externally measured

value

N/A

Interface

Combined 4-pin socket for storage tank alarm relay and for optional low

temperature sensor (for measuring the temperature inside the storage tank)

Working temperature

20-50 °C; stable temperature required

Relative humidity

range

0-99 %

Features

Wireless transmitter

Requirements for

operation

The Log & Guard B:safe monitoring trolley must be placed in the same room as

the Log & Guard controller or an Ethernet gateway connected to the controller.

Log & Guard B:safe

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Do not step on the monitoring trolley.

Do not lean on the monitoring trolley or tank.

The monitoring trolley must only be used with all five holding rods installed

correctly.

Two persons must handle the storage tank when positioning it on or removing it

from the monitoring trolley.

Relocation should be avoided. If relocation is necessary: be careful, move

slowly, relocate on an even floor, watch your feet and wear protective shoes.

Observe the RF limitation and measurement intervals.

Avoid contact between the monitoring trolley and other items to ensure correct

measurement.

Ensure that the ambient temperature is stable.

2.2 Unpacking and installation of the Log & Guard B:safe

monitoring trolley

The Log & Guard B:safe monitoring trolley can be connected to any Log & Guard controller that

has a serial number starting with AOLG. To ensure optimum signal strength, the Log & Guard

B:safe monitoring trolley should be installed in the same room as the Log & Guard controller or an

Ethernet gateway connected to the controller.

2.2.1 Unpacking the Log & Guard B:safe monitoring trolley

Take all parts out of the box. The loose holder with the surface temperature sensor is attached to

the underside of the monitoring trolley (Figure 3). A small box containing holding rods, screws,

Allen keys and batteries is included with the monitoring trolley (Figure 4).

List of items included in the box:

•Log & Guard B:safe monitoring trolley with surface temperature sensor attached

•5 holding rods (5 screws, 5 studs and 5 guides)

•Allen keys (2 mm, 3 mm and 6 mm)

•2 x LR20 alkaline high-capacity batteries.

Log & Guard B:safe

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Figure 3: Loose holder with the surface temperature sensor attached to the underside of the

monitoring trolley.

Figure 4: Small box containing holding rods, screws, Allen keys and batteries.

2.2.2 Integration into the Log & Guard software

For sensor channel integration into the Log & Guard software, please provide the MAC address

printed on the label on the skirt of the Log & Guard B:safe monitoring trolley to Vitrolife support.

Log & Guard B:safe

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2.2.3 Assembly of Log & Guard B:safe components

Installing the surface temperature sensor

Figure 5: Surface temperature sensor mounted on the underside of the trolley during shipment.

1. Remove the surface temperature sensor from the underside of the trolley.

2. Flip the trolley onto its back and place it upside down on the edge of a table (Figure 6).

Figure 6: Surface temperature sensor being mounted from the underside of the trolley.

Alternatively, the trolley may be flipped onto its side if no table is available (Figure 7).

Log & Guard B:safe

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Figure 7: Log & Guard B:safe monitoring trolley on its side for removal and mounting of the surface

temperature sensor.

3. Mount the surface temperature sensor from the underside of the trolley as shown (Figure 8).

Figure 8: Surface temperature sensor being fixed to the trolley from below.

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