Lauda H 2 P User manual

Operating Instructions
Hydro Tissue FloatBath
H 2 P

2 / 20 Hydro TissueFloat Bath 09/2020

0
9
/2020
Hydro
Tissue
Float
Bath
3
/
20
The LAUDA Hydro Tissue Float Bath H 2 P is a special bath for histological, pathological, clinical and bacteriological labora-
tories, for stretching and drying of cut tissue samples. The outer housing is made of powder-coated aluminium,the bath
body as well as the rims of the bath to dry the cut tissues are made of black anodised aluminium.
The units' temperature can be set via an electro-mechanical temperature controller with capillary tubesensor in a tempera-
ture range of 5 K above ambient to approx. 80 °C and is protected by a temperature cut-out in case of dry running ofthe
heating element. The Bath is heated indirectly, heating plate, sensor of thethermostat and temperature cut-out are situated
below the bath.
Before installation, please check whether contents of package are in good order and complete.
Should younote any damages or have any reasons for complaint, please contactyour supplier or directly:
LAUDA-GFL Gesellschaft für Labortechnik mbH
Schulze-Delitzsch-Str. 4+5
30938 Burgwedel - Germany
Telefon: [phone]
Fax: [phone]
E-Mail: [e-mail]
Internet: www.gfl.de

4 / 20 Hydro TissueFloat Bath 09/2020

0
9
/2020
Hydro
Tissue
Float
Bath
5
/
20
Contents
Operating Instructions...................................................................................................................................................................1
1 Use of the Tissue Float Bath..................................................................................................................................................7
Intended Use...................................................................................................................................................................................7 1.1
Improper Use..................................................................................................................................................................................7 1.2
2 Warranty................................................................................................................................................................................7
3 Before installation..................................................................................................................................................................8
4 Set-Up and Location of the Tissue Float Bath......................................................................................................................8
5 Operating Voltage.................................................................................................................................................................8
6 Thermometer.........................................................................................................................................................................9
7 Filling Water intothe Tissue Float Bath................................................................................................................................9
8 Installation,Temperature Regulation and Shutdown............................................................................................................9
9 TemperatureMonitoringin Case of an Error........................................................................................................................9
10 Maintenance,Support and Repair...................................................................................................................................... 10
11 Disposal of Old Appliances.................................................................................................................................................10
12 TechnicalData....................................................................................................................................................................11
13 Circuit diagram...................................................................................................................................................................12
14 Examples for connection tothe mains supply.................................................................................................................... 13
Electrical fuses..............................................................................................................................................................................13 14.1
Examples for connection to the mains.....................................................................................................................................14 14.2
15 List of spare parts................................................................................................................................................................15
16 Accessories..........................................................................................................................................................................16

6 / 20 Hydro TissueFloat Bath 09/2020

0
9
/2020
Hydro
Tissue
Float
Bath
7
/
20
1 Use of the Tissue Float Bath
Intended Use 1.1
LAUDA Hydro Tissue Float Baths are used to heat up distilledor desalinated water in atemperature range of 5 Kabove
ambient to approx. 80 °C, inorder to flatten cut tissues to prepare them for furtherstudies, to transfer them to micro-
scope slides andto dry themon the indirectly heated rim of the bath.
The information contained in these operating instruction must be read and observed by all means. Onlythen a perfect
operationof the LAUDAHydro EvaporationWater Bath can be guaranteed. The units mayonly be installedandoperated
by persons who have madethemselves familiar with these operating instructions.
Caution:
Hot surfaces at temperaturesabove 50 °C. Danger of burns and danger of scaldings
through steamreleased when opening the lid of the Tissue Float Bath. It is recommended to
wear suitable safety gloves.
Improper Use 1.2
Do not use tap water as lime deposits on the black anodised bottom ofthe bath will prevent clear visibility of the cut tis-
sues. Only use water in the bath;other media,e. g. oils oracids, will lead to damages and mighteven cause total unit fail-
ure. The temperature work must not create an explosive atmosphere nearby of the unit.LAUDAHydro Tissue Float Baths
are not suitable for direct temperature work of foodstuffs, drinks and tobacco or for medical-technical and pharmaceutical
products. Direct temperature work means unprotected contactof the substances with the bath filling. It is not permissible
to either heat upor vaporise aggressive media,e. g. hydrochloric acid, in the unit itself or in the vicinity. LAUDA Hydro
Tissue Float Baths operated in a laboratory are no medicaldevices. They neither fall under nationalnor international Medi-
cal Device Directives nor have to be used and applied accordingly.
2 Warranty
For all laboratory apparatus and their accessories fromLAUDA-GFL Gesellschaft für Labortechnik mbH, there is a war-
ranty claim, as well for spare parts, repairs and modifications, carriedout by LAUDA-GFL. In order to identify defective
units, we require both model and serial number on the nameplate at the back, left-handside of the Evaporation Water
Bath and, if applicable, a copy of the invoice.

8 / 20 Hydro TissueFloat Bath 09/2020
3 Before installation
The information given in the present manual must by all means be carefullyread and observed. Only then cana perfect
functioning ofthe Evaporation Water Bath be guaranteed. Safety precautions are additionally marked with the following
symbols.
Read and observe the
operating instructions
Warning of hot liquids
and vapour Warning of hot surfaces
Warning of
dangerous
electrical voltage
General
warning Before maintenance and repair
disconnect the unit all-pole from
the electrical mains (pull the plug
from the socket).
4 Set-Up and Location of the Tissue Float Bath
Place on solid,even and level surfaces inside buildings only. Make sure to place the unit only on a water-
tight, temperature-resistant and non-flammable surface. The unit is not suitable for use in potentially
explosive surroundings.
5 Operating Voltage
The main switch of the Tissue Float Bath must be off (position O). The operating voltage on thename-
plate (at the back of the unit) must be the same as the mains voltage. The supplied connection cable
disposes ofa high-temperature couplingon one end, which is to be plugged into the unit'ssocket at the
back of the unit, and a shock-proof plug thatserves as the mains plug and is to be connected to the
mains socket. The Water Bath must be connected to a correctly installedshock-proofsocket. The bath
is a protection class I electrical appliance, a connection to theearth conductor (PE) must beensured. For information on
the required mains fuse please view the technical data, chapter 11of this manual.The electrical connection must ensure
an all-poleseparation from the mains supply at any time. The mains cable must not touch hot surfaces of the unit any-
where. It may not be led underneath the unit. In case of compliance, connect the unit to themains.

0
9
/2020
Hydro
Tissue
Float
Bath
9
/
20
6 Thermometer
Fix the thermometer holder to the bath rim, opposite the control panel, and place the glass thermometer into the holder.
The thermometer must not touchthe bottom of the bath.
7 Filling Water into the Tissue Float Bath
Before initiation, fill either distilled or desalinated water up to approx. 1 - 2 cm beneaththe rim of the
bath. The maximum filling quantity can be found in the technical data, chapter 11 of these instructions.
8 Installation, Temperature Regulation and Shutdown
Switch onthe mainswitch. The green pilot lamp to the left above the main switch will light up.Set the required tempera-
ture on the turning knob of the temperature regulator. The temperature rangeof the bath is between approx. 5 K above
ambient to maximum approx. 80 °C. After setting the required temperature, the heating element is powered. The yellow
pilot lampto the left abovethe temperature regulator lights up. The thermometer showsthe current temperature. For safe
heating up to the maximum temperature cover the bath with a lid (accessory).
Caution, please observe byall means.
To turn off for longer shut-down periods switch the mainswitch to position O and disconnect the unit from the mains.
Empty the EvaporationWater Bath and dry the cabinet interiorto prevent bacterial contamination.
Caution:
Hot surfaces at temperaturesabove 50 °C. Danger of burns. Take extreme care when
handling the unit becauseof the high operating temperatures.
9 Temperature Monitoring in Case of an Error
The Tissue Float Bath is protected against destruction by running dry or defective temperature controller by a temperature
cut-out (nonreadjustable, temperature-dependent cut-out). The cut-out cuts the power to the heating.A defective
temperature cut-out must be exchanged against an identical cut-out.

10 / 20 Hydro TissueFloat Bath 09/2020
10 Maintenance, Support and Repair
The LAUDA Hydro Tissue Float Bath is constructed to withstand even roughservice conditions. Nevertheless, the unit
should only besubjected to increasedstrain withinsensible limits.
Make sure to prevent liquids coming into contact with cable connections or the inside
of the electrical appliance.
Before opening and/or cleaning the unit, pull the plug from thesocket.
Danger of electrical shock!
The black anodised bath as well as the off-white powder-coated surfaces may be cleaned with mild,
non-abrasive and pH neutral detergents. Never use detergents containing solvents.
It is advisable to exchangethe water in the bath in regular intervals in order to prevent bacterial con-
tamination.
For technicalsupport concerning LAUDAHydroTissue Float Baths, please donot hesitate to contact our ServiceDe-
partment. Please contactyour dealer or us before returning a defective unit and do notreturn it before consulting us.
A defective unitmayonly be returned thoroughly cleaned, decontaminated, if necessary, and carefully packed, accompa-
nied by a detailed descriptionof the defect, to
LAUDA-GFL Gesellschaft fürLabortechnik mbH
Schulze-Delitzsch-Straße 4
30938 Burgwedel – Germany
Servicings, repairs and modifications must be carried out according to the General Technical Rules and Regulations
(§2, chapter 2,DGUV regulation 3) by a trained electrician (§2, chapter 3, DGUV regulation 3).
Only original spare parts may be used. Always demand a confirmation (company, date, signature) on the kind and extentof
the service(s) carried out.
11 Disposal of Old Appliances
LAUDA-GFL will take responsibility, within thescope of the legal directives, for an environmentally sound handlingand
disposal of all used LAUDA-GFL units as of the production year 1995 that are returned to us free of charge and will have
them materiallyrecycled. Before a unit is returned, a legally binding declaration must be provided from thesender con-
firming that the unit is free from harmful and/or hazardous contaminations as well as from hazardoussubstances caused by
the previous use of the unit.
LAUDA-GFL laboratory apparatus are exclusively designed for industrial use and may not be disposed of through public
waste disposal authorities.
EAR Registration NumberWEEE-ID.NO 67770231