Contherm Cat 1050 User manual

INSTRUCTION MANUAL
CAT 1050 –1400
STANDARD INCUBATORS
CONTHERM SCIENTIFIC LIMITED
P O BOX 30-605 LOWER HUTT 5040
TEL: [phone]
FAX: [phone]
EMAIL: [e-mail]

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WARRANTY STATEMENT
* * * * * * *
CONTHERM Scientific Company will guarantee CONTHERM equipment for
a period of twelve months from the date of installation against faulty
workmanship and fabricated materials. This guarantee covers the
replacement of component parts found to be defective and authorised
labour charges during this period.
Should a malfunction occur or condition develop beyond reasonable
acceptance the company will accept responsibility for returning the unit to
its factory specification at no cost to the Purchaser providing that the
operating instructions have been observed and the defect is due solely to
faulty design, material and workmanship. That the defective part be
returned, freight paid to the nearest sales service office. Units outside the
warranty period will be accepted and repairs will be covered under an
extension of the above for 90 days.
In remote installations where it is not possible for the company's or
agents' engineers to attend, authority may be given to allow the Purchaser
to arrange such service.
The Purchaser is required to remit the purchase price of the unit to the
supplier within the terms of that supplier's condition of sale. CONTHERM
Scientific Company will accept no liability or shall its agents for
consequent damage of any kind due to a malfunction or component
failure.
* * * * * * *

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STATEMENT of CONFORMITY
This CONTHERM cabinet conforms to the following standards:
Electrical Safety: Complies with AS/NZS3350:1:1994
EMC: Complies with EN 61326-1:1997

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CONTENTS
SECTION 1 Definition of Terms
SECTION 2 Introduction and Specifications
SECTION 3 Operating Instructions
SECTION 4 Theory of Operation
SECTION 5 Customer Troubleshooting and Maintenance
SECTION 6 Parts Lists for Spares and Accessories
IMPORTANT All electrical servicing must be carried out by
suitably qualified personnel only.

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SECTION 1 DEFINITION OF TERMS
For the purpose of our standard specifications the following definitions shall
apply:
a) WORKING SPACE
That portion of the internal space which is above the lowest shelf and
not less than 3cm from any wall (including roof).
b) CABINET TEMPERATURE
That temperature at the centre of the working space.
c) SPATIAL VARIATION
The difference between the midrange of all measured temperatures
obtained at one site and that at another site for those sites which give the
greatest difference.
d) TEMPORAL VARIATION
The maximum value of the temperature range obtained for the standard
site with the greatest range throughout the test interval.
e) TEMPERATURE OVERSHOOT
Any excess of actual over desired cabinet temperature during a heating
up period.
f) TEMPERATURE REPRODUCIBILITY
Temperature regained without alteration to controls.
g) TEST INTERVAL
Interval of time to which the steady state characteristics apply (Max 1
hour).
NB: All the above apply with an empty chamber.
For definitions and test methods refer: AS2853 : 1986 (and Appendices)

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SECTION 2 INTRODUCTION AND SPECIFICATIONS
The CONTHERM 1000 standard series range of incubators have been
expressly designed to give the widest choice of operating conditions consistent
with high reliability and low cost, the addition of a hi-resolution RTD control
system gives improved temperature performance over earlier models.
All specifications are quoted for a cabinet temperature of 37oC with an ambient
temperature of 20oC.
Construction - High quality stainless steel interior, full fibreglass insulation,
with non-jar magnetic door catch and corrosive resistant epoxy powder
coated exterior.
Safety - Fitted with an independent user adjustable Hi-Limit completely
separate from normal controls.
Convection - All units come with mechanical convection fan systems.
Electrical - All quoted at 37oC - ZP21 Micro-Controller mechanical
Convection.
-Designed to AS/NZS 3350.1.1994 220-250V AC M.E.N
EMC -Complies with EN 61326-1: 1997
PERFORMANCE:
a) Temperature:
Nominal Range Amb+2oC - 100.0oC
Temporal Variation +_ 0.2oC
Spatial Variation +_ 0.6oC
Initial Overshoot +2.0oC
Reproducibility +_0.4oC
Dial resolution 0.1oC
Operating Ambient 10oC - 35oC
Mains Voltage Range 220-250 AC 50Hz
b) Timer:
Timing range 1 minute - 99 hours 59 minutes
Timing Resolution 1 minute
NB: Timer does not start timing down UNTIL within 2.5oC of the
temperature SET POINT.

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SECTION 3 OPERATING INSTRUCTIONS
This appliance is NOT intended for use by young children or infirm persons
without supervision.
To set up unit for operation after unpacking and checking for damage proceed
as follows:
1) Install shelf runners: Fit lug into selected slot at rear of cabinet sidewall
and clip down into front slot to lock into place. Check heights of runners
are parallel.
2) Fit Shelves. Maximum shelf loading is 30Kg/shelf, maximum total for
cabinet is 100Kg.
3) Select a location handy to a 10amp electrical outlet.
4) Bench Units - Place on solid top with clearance underneath to allow
ventilation around entire cabinet.
5) Ensure a space of at least 150mm is allowed at the rear of the cabinet for
air circulation.
NB: Ensure ALL of the distinctly coloured cable ties (If fitted inside cabinet) are
REMOVED BEFORE operating the incubator.
NB: These cabinets are NOT suitable for operating with high humidity conditions
present inside. Humidity levels should be such that water does not condense on
the walls, floor or inside the outer door.
OPERATING CONTROLLER:
1) Plug cabinet into 220-250V Mains outlet.
2) Turn on main switch - The LED should show all 8888s then display the
current temperature in the cabinet. Do NOT press any buttons until after
the 8888’s have gone from the display.
3) Press and HOLD the temperature button (top) UNTIL the ‘SET’ LED
comes ON then RELEASE. The `SET' LED above the LED display
should now be ON!
4) While the ‘SET’ LED is On use the ‘UP’ & DOWN’ buttons to adjust the
SET POINT to the desired temperature.
5) WAIT for the display to return to normal; the ‘SET’ LED will then go off.

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6) The TIMER must now be set to run the cabinet - use the SAME method
as for the temperature EXCEPT press the ‘TIME’ button instead. To
obtain the special ‘[.]’ symbol for continuous operation, first adjust the
timer down until ‘0.00’ is reached, then press the down button once more
to get ‘99:59’ then the ‘up’ button to go 1 step above ‘99:59’ the special
‘[.]’ symbol should now be shown.
NB: the symbol ` [.] ' means run CONTINUOUSLY.
Setting the TIMER to 0.00 turns the cabinet OFF.
If the cabinet has TURNED OFF after the completion of a TIMED
operating period it is only necessary to PRESS and HOLD the
TIMER button until the ‘SET’ led comes on to REPEAT the TIMED run.
7) The cabinet will now attempt to obtain the SET POINT and control until
the TIMER runs out of time. The cabinet WILL NOT OPERATE if the
TIMER has been set to 0.00.
8) To look at the current TIME press the ‘TIME’ button for 2 seconds - the
amount of time left will nowbe displayed continuously.
To display the TEMPERATURE continuously - press the ‘TEMP’ button
for 2 seconds.
9) To CANCEL any Alarm (ie. 1- - - ) PRESS and HOLD the ‘TEMP’ button
until the ‘SET’ LED comes ON.
Ensure the mechanical user HI-LIMIT is set correctly as described in the
following section. The cabinet usually leaves the factory with the user HI-LIMIT
set fully anticlockwise, if left in this position the HI-LIMIT will not allowthe cabinet
to heat and control correctly.
FAN MOTOR
The fan motor may ‘PULSE’ when the ambient temperature is very close to the
set point temperature, this is due to the ‘Thermoguard’ mode of operation as the
controller attempts to lower the heating effect of the fan –a mechanical ‘pulse’
sound may also be heard.

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MECHANICAL HI-LIMIT MONITOR
The mechanical hi-limit is provided as a secondary safety device to protect the
cabinet from over temperature in the event of electronic controller failure.
To set the Mechanical Hi-Limit
Turn the Hi-Limit control FULLY CLOCKWISE.
Allow the cabinet to stabilise at the required operating temperature (for at least 1
hour), then turn the Hi-Limit control anti-clockwise until the MONITOR neon
comes on (or a slight 'click' is felt). Now turn the Hi-Limit control SLOWLY
CLOCKWISE until the MONITOR neon goes off (or a slight 'click' is felt), then
advance the Hi-limit clockwise 1-2 scale markings. This will set the Hi-Limit trip
point about 3 - 4oC above the current cabinet temperature.
WARNING: To prevent FIRE or SHOCK hazard, DO NOT expose this
product to rain or any type of moisture.
FOR YOUR SAFETY
To ensure safe operation the three-pin plug supplied must be inserted
ONLY into a standard three-pin power outlet that is effectively earthed
through the normal building wiring.
Extension cords are NOT recommended.
The fact that the equipment operates satisfactorily does NOT imply that
the power outlet is earthed and that the installation is completely safe. For
your safety, if in any doubt about the effective earthing of the power outlet,
consult a qualified electrician.
This appliance should be periodically tested according to the procedures
prescribed in AS/NZS 3760.
The basic safety checks and tests on electrical appliances required by AS/NZS
3760 are:
1. A visual check to ensure that there is no mechanical damage to
the supply cord, that controls etc. are in good working order and
that no parts are missing.
2. An earth continuity test.
3. An insulation resistance test.
In order to provide evidence of compliance, a label (signed and dated by the
person testing the equipment) may be placed on the tested appliance.

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ALARMS
All alarms are indicated by a number and three dashes on the LED display and
are accompanied by an audible alarm.
To CANCEL any Alarm (ie 1---) PRESS and HOLD the `TEMP’ button until the
‘SET’ LED comes ON.
ALARM MEANING
1--- This means the cabinet is OVER or UNDER temperature. If UNDER
temperature it could be due to the door being opened, otherwise
check the cabinet to determine if the Internal fan is still operating and that
the MECHANICAL Hi-Limit control is not interfering with normal
operation.
3--- Preset alarm - The cabinet has lost its control settings due to an internal
memory failure. Reset all control settings as desired and check the
calibration setting.
4--- This means that the TEMPERATURE sensing probe has failed (1000
RTD). The connections to the probe and the probe condition should be
investigated.
9--- This is a WATCHDOG alarm - The Electronic PCB has failed - Replace
the controller.