Rodwell Ensign Top Loading Autoclave 100 & 125 litre by Rodwell Scientific Instruments

Features
Choice of 100 litre or 125 litre capacity
Simple, robust design
125 litre variant is ideal for fermentation vessel sterilisation
Mounted on casters for portability
Low loading height and small footprint
MP24 Control
Simple effective bolt closure for maximum safety and reliability
CE Marked
Total service accessibility
Total after sales service

Applications
Liquids and culture media
Laboratory Waste
Instruments and Glassware
Major Industries Served
Food, Drink & Dairy
Agriculture
Water
Higher Education
Pharmaceutical
Healthcare
Research

E N S I G N- Top Loading Autoclave; 100 or 125 litre capacity

The Rodwell Ensign is a compact top loading autoclave with a small footprint and low loading height. It is available in electrically heated version or can be heated by means of an external steam source. Casters allow it to be easily positioned for installation and jacking bolts are supplied to allow for permanent installation.
Service requirements are minimal, as the autoclave is manual fill (electrically heated), however auto-fill is available as an option and three phase is not required for the 100 litre version
Both offer exceptional usable capacity, however the 125-litre variant has sufficient depth for tall objects such as formation vessels.

The autoclave incorporates the revolutionary
24 Programmable pre-set programs
• Smartcard Access, supervisor card enables the cycle parameter to be set. Operator cards allow access to program numbers only.
• Load activated sterilise timer (ON/OFF)– A load probe placed in the largest load prevents the timer from starting until the chamber and load has reached set point temperature.
• Timed Free Steaming (adjustable) for improved steam penetration and even heat distribution between different loads.
• Delayed Start. Enables the autoclave to be loaded and set to start a cycle at a pre-determined time specified by the operator. Ideal for media-to-pour media for the morning.
• Stay Warm– Holds the chamber warm at cycle complete for ready-to-pour media for some time after cycle complete.
• 4 instrument drying cycles. Once the sterilise timer has timed out, the autoclave chamber will exhaust. This action causes the chamber to depressurise and cool down rapidly causing excess moisture will boil away.
• Self diagnostic. The MP24 clearly identifies the nature of a fault on the LCD display.
• PT100 chamber and load probes. Accurate and extremely stable.

OPERATION
Load the autoclave and place the load probe into the largest (simulated) load. Close the lid. The autoclave will not be allowed to start until the lid has been securely closed. Select the program number and press start.
The MP 24 will keep the operator informed on the autoclave status (i.e. ‘Door Open’, ‘Select program’, ‘Heating’, ’ Free Steaming’, ‘Sterilising’, ‘Cooling’, ‘Cycle Complete’). Chamber and load temperatures as well as the program number and cycle parameters are also constantly displayed.
At cycle complete a discreet alarm will sound at intermittent intervals to remind the operator that the autoclave has completed it’s cycle.

SAFETY
The autoclave meets all current U.K. and E.C. safety requirements. Safety devices prevent cycle initiation until the door has been completely closed and door locks are functioning correctly. All locks are ’fail safe’. Two independent circuits operate and monitor the lock status. In the event of a lock fault the autoclave will fail safe and ’Lock fault’ will be displayed on the MP24 control panel. The autoclave will become inoperable if the autoclave is unsafe to use.
Thermal and pressure locks will not be released until the load and chamber temperature is below 80deg c and the pressure is below 0.04 bar.
The chamber is pressure tested hydraulically as well as with live steam and carries a pressure test certificate. The chamber is fitted with a pressure relief valve (in case of over-pressure) as well as over temperature protection.
The chamber has been designed approved by a reputable insurance company. Independent inspection during manufacture can also be arrange for an additional charge.

CONSTRUCTION
The chamber and door are constructed using the highest quality stainless steel (BS 1501-316 S31). The door is secured by a simple two-bolt closure. Sealing of the chamber is effected by a compressed silicone rubber seal. The door locking and movement mechanism is connected to a steam release vent for safety.
All components are mounted within a strong steel framework and with panels that are easily removed for service access. The autoclave is mounted on casters so the autoclave can be positioned and fixing jacks for permanent installation.
The autoclave is manual fill so water supply is not required, but auto-fill and auto-drain and re-fill are available as options.
Although a drain line is preferred, it is not always necessary for the electrically heated version as the autoclave can be supplied with a condense collector to the front or to the rear.

CAPACITIES & FORMATS
100 litre
100E: Electrically heated from a 6 KW single phase supply
100E HS: Electrically Heated from a 9 KW three phase supply
100DS: Steam heated by means of an external steam source
125 litre
125E: Electrically Heated from a 9 kw three phase supply
125 DS: Steam heated by means of an external steam source

ACCESSORIES

Assisted Load Cooling
Fan Type (Part No AC3): Powerful fans strategically located direct a blast of cool air around the chamber substantially improving cooling times.
• Reduces Cooling time by up to 50%
• Simpler and more reliable than water cooling systems
• Site requirements kept to a minimum.
Air ballasting (Part No AC260b): Injects/ releases compressed air though the chamber during the cooling stage of the cycle. Improves cycle time by a further 50% and reduces the risk of thermal breakages when the chamber is cooling.
Very fast cooling down times
Effective on large liquid loads
Improved cycle times
! Requires a filtered compressed air supply or oil free compressor
! A drain service is required. Air Ballasting cannot be used with a condense collector
Oil free compressor for air ballasting (Part No 260c) A heavy duty industrial air compressor for use with air ballasting when compressed air is not available at the point of autoclave installation

Heating Element Options (electrically heated versions only)
6 KW heating for connection to a 30 amp single phase supply Standard on Ensign 100

! Not available on Ensign 125, however 9KW single phase version can be manufactured on request for no extra charge
‘HS’ High Speed Heating. 9 KW three phase heater system
improves heating up times by 33%.

• Optional on Ensign 100E for additional charge(Part No. AC803)
• Standard on Ensign 125E

Chamber Furniture

Waste Discard System (Part No. AC25): A container system can be supplied to contain plastic waste without leakage of effluent in to the chamber and allows effective steam penetration into the waste naturally removing any air pockets without the use of vacuum.
• Eliminates the need for vacuum systems for sterilising waste
• Very simple in principle and operation
• Helps to prevent spillages within the chamber
• Improves productivity
• Reduces maintenance costs and downtime
• Increases plant and control valve life
• Reduces maintenance costs
• Requires no maintenance
• No moving parts

Additional Loading Baskets. One supplied free of charge.
(Part No. AC63)

Loading Accessories
Reduces the risk of manual handling related injuries.
Added convenience and operating efficiency

Loading Step (Part Number AC 154):
A 300mm built in step on the front of the autoclave brings the effectiveloading height down to just 89cm.
! Not available for ‘Ensign 100’
• Highly recommended for ‘Ensign 125’

Loading Hoist Option 1 (Part No. HST1)-Hoist fixed to the rear of and is part of the actual autoclave.
Movement is front to back for lowering in front of the autoclave.

Heavy Duty Electric Hoist System specifically designed to assist theoperator load and unload heavy objects from the autoclave. The hoistis designed to move up/down by means of electrically controlled by apendant. Forward/back movement is by means of a ‘travelling trolley’and gantry arrangement to which the hoist is mounted. The gantry isfixed to the autoclave by means of a single ‘A’ frame arrangementbolted on to the rear of the autoclave. The loading hoist is essentialfor items such as heavy fermentation vessels.

Loading Hoist Option 2 (Part No. HST2)
Separate ‘A’ Frame arrangement. Movement to side (left or right)of the autoclave for loading and unloading.
Heavy Duty Electric Hoist System specifically designed to assist theoperator load and unload heavy objects from the autoclave. The hoistmoves up/down electrically and is controlled by means of a pendant. Side to side movement is by means of a ‘travelling trolley’arrangement, which allows left to right movement along a steel gantrysupported by ‘A frames’ mounted on lockable casters either side. Thisarrangement is ideal for application where one hoist is required formore than one autoclave.
! NOTE THAT HOIST SIZES ARE VARIABLE AND SUBJECT TO ASITE SURVEY BY A RODWELL REPRESTATIVE

Optional Drain Systems
Instrument Cycle Condense Collector (Part No. AC163):
Enables the autoclave to be installed without any connection to a drainage system. Stainless Steel Construction with a unique vent arrangement that allows the autoclave to exhaust and instruments and empty glassware to be removed dry at the end of the cycle. . (Cannot be used with air ballasting or automatic drain and re-fill).
Eliminates the requirement for a drain system
Allows for the instrument cycle to be used resulting in faster cycle times on non-liquid loads.
! Not to be used with direct steam autoclaves, air ballasting or automatic drain/ re-fill

Drain systems

Vacuum Break Filter (Part Number AC 702A): During the cooling cycle at around 100 deg c, an autoclave draws a natural vacuum. At this stage of the cycle, there is a chance that contaminates can be drawn back into the chamber via the drain or from atmosphere. A Vacuum Break Filter prevents this by allowing air to be drawn in via a microbiological filter.

• Increases the sterility of media and instruments.
• Ensures a vacuum is not drawn up from a dirty drain.

Drain Line Filter (Part Number AC 112): A microbiological filter in a stainless steel housing, fitted to the drain line prevents the discharge dangerous pathogens to the main drain. The sterilisation process then sterilises the filter during the cycle. The filter element should be changed periodically
• Reduces the risk of releasing dangerous pathogens into the drain system
• Reduces the risk of releasing dangerous pathogens into the autoclave area from aerosols discharged by the autoclave vent.
Drain line condenser. For use with plastic drain systems. (Part Number AC 110): Introduces cold water periodically into the drain to prevent drain meltdown when the autoclave is connected to a plastic drain system.
• Ensures the autoclave drain outlet is cooled to help prevent damage to plastic drain systems
• Very simple operation
• Few moving parts and requires little maintenance for greater reliability


Optional Water Systems
(15mm cold water supply required, supplied from a 15 litreheader tank and terminated at a stopcock within 2 metres run ofthe rear of the autoclave to comply with regulations).

Header Tank (Part No AC802): If a header tank is not readilyavailable on site, Rodwell can manufacture one ready for installation(built in on Rodwell ‘Herald’ Autoclave).

Electronic Scale prevention (Part No. AC250): Softened watersupplies tend to be very chemically aggressive on welds, stainlesssteel pressure vessels and associated pipework. Hard water cancause reliability problems over the long term on any autoclave. Therefore, if scale is a problem Rodwell offer a unique industrialelectronic scale prevention systems which helps to prevent scale andchalk from clogging steam generators and pipe work. This system hasbeen tried and tested over many years and has proved to be the mosteffective in preventing scale build up.
• Improves productivity and product quality
• Reduces maintenance cost and downtime
• Increases plant and control valve life
• Removes risk of scale and chalk hammer damage.
• Reduces maintenance bills
• Requires no maintenance
• No moving parts

Inlet Water Filter (Part No. AC254): Ideal for auto-fill connection to a mains supply that is high in mineral content. Helps to keep the chamber clean, especially when used in conjunction with the electronic scale prevention device.

Automatic Fill (Part No. AC90): Increases operational efficiency by automatically filling the chamber from a water supply prior to a cycle if the water level is insufficient.
Improves productivity, especially in multi-user situations
Heavyduty motorised ball valve system less prone to jamming compared with competitors auto-fill options for greater reliability and reduced risk of over-filling or flooding.

Automatic Drain and Re-fill (Part No. AC91): Reduces the labour costs and inconvenience associated with keeping the chamber clean. Before cycle completion, water is dumped form the chamber and re-filled with fresh water on initiation of the next cycle. Supplied c/w scale prevention device.
• Enables the generation of cleaner steam for every cycle
• Chamber is easy to keep clean simply by wiping with a damp cloth

Mechanical Water Level Detection (Part No. AC 251A): This is very suitable for automatic fill autoclaves in areas where the water supply is high in chalk levels, which can cause electronic water level devices to become unreliable. A simple float level system is used to control the water level remotely from the main chamber, well away from excess heat and spillages. This is also required on autoclaves where treated water supplies are used.
• Not dependant on conductivity of water supply
• Reduced risk of flooding
• More reliable than electronic water level detection
• Eliminates the need to clean water probes
Direct Steam Autoclave Options
! These options are for autoclaves connected to a mains steam supply
Dry Steam Option for separate steam generator:A simple attachment to the pre-heated steam generator or steam supply for the removal of saturated condense. This enables dry steam to supply to the autoclave, which helps for better steam penetration and enables loads to be removed less saturated than under normal circumstances. (Part Number: AC341)
• Improves productivity and product quality
• Reduces maintenance cost and downtime
• Increases plant and control valve life
• Removes risk of water hammer damage
• Reduces maintenance bills
• Requires no maintenance

Separate Steam Generator Option
The Ensign is available in direct steam format, with a separate 3 three phase, 9Kw pre-heated steam generator. This is ideal for situations where fast cycle times are imperative or in situations where the steam supply can be unpredictable and a back up supply is required. Please contact Rodwell or your distributor for further information.
(Part No. SRB1)

Cycle Data Recorders
In the modern laboratory, proof of sterilisation and traceability is imperative. Rodwell Scientific Instruments offer a complete range of cycle data recording systems for documenting the integrity of every autoclave cycle.
• Enables the operator to prove that the autoclave has met all cycle criteria
• Alerts the operator to any potential faults
• Simplifies any fault finding

2 channel Data Printer (Part No. AC380/1): Provides a hard copy of chamber and load temperatures as well as the pre-set cycle parameters of every cycle. The print out will identify the operator from information on the smartcard.

3 channel Data Printer (Part No. AC380/1 b): Provides a hard copy of chamber, load temperatures + Pressure as well as the pre-set cycle parameters of every cycle. The print out will identify the operator from information on the smartcard.

Electronic Memory Card Data Logging (Part No AC178) The autoclave can be fitted with a memory card port and a PC compatible memory card. Information such as operator number, cycle number, program number and parameters, date and time. Load, chamber temperatures and chamber pressure (optional) are then printed every 5 minutes during heating and cooling and every minute during the sterilise period.

Chart Recorders. 100mm strip and circular recorders are available in the following formats.

Circular• Single pen to measure load temperature
(Part No. AC172)
• Two pen two measure load and chamber
temperature (Part No. AC173)
• Three pen to measure load temperature
,chamber temperature and chamber
pressure (Part No. AC 179)

100mm Strip chart recorders
• Single pen to measure load temperature (Part No AC174)
• Two pen two measure load and chamber temperature
(Part No. AC175)
• Three pen to measure load temperature ,chamber temperature and chamber pressure (Part No. AC177)
• Up to 6 pens also available

SITE SERVICE REQUIREMENTS
Electrical Requirements for electrically heated autoclaves
(electrically heated autoclave generate their own steam)
6kW Electrically Heated: 220/240 volt single phase supply rated at 30 amps. (similar to a cooker point).
Required for Ensign 100E
Other voltages available on request

9kW Electrically Heated: 380/415 volt three phase + Neutral + Earth supply rated at 15 amps per phase
Required for High Speed version of Ensign 100
Other voltages available on request Required for Ensign 125

Electrical requirements for Direct Steam Autoclaves
(Direct Steam autoclave heat by means of an external steam supply)
220/240 volt, 50/60 Hz single phase supply rated at 13 amps, or a standard socket outlet.

Water Supply:
A water supply is required if any of the following have been specified:-
Automatic Drain and re-fill Automatic Fill
A water supply is NOT required for a basic manual fill autoclave where none of the above options are required or have been specified. Drain Line condenser
Water Supply Specifications for above.
This should be supplied from a 15mm cold water supply, supplied via a 15 litre break tank (to comply with regulations) and terminated at a stopcock within 2 metres run of the rear of the autoclave.

Drain Service: > 32mm metal drain preferred but not essential if condense collector is specified. If the drain is of plastic construction, then a drain line condenser may be required. Drain service should be no higher than 100mm from floor level. If this is a problem please contact Rodwell because we may be able to raise the drain outlet on the autoclave to suit existing drain services. If the autoclave is connected to a main drain system, the drain should be vented to a high level outside the building to comply with regulations.
If no drain service is available, a condense collector will be required. If this is specified and the autoclave is to be used on instrument cycle, then an instrument cycle condense collector will be required as the autoclave exhausts at the end of the process time.

A condense collector CANNOT be used on: -
Direct Steam autoclaves
Automatic Drain and re-fill autoclaves

Ensign 100 Technical Spefications (mm)
Usable Chamber Dimensions: 460 ∅ x 520 deep
Overall Dimensions: 560w x 800d x 1090 high
Export Packing Specifications
(heavy duty packing case for shipping, in mm):
660 wide x 900 deep x 1300 high
0.77 cubic metre
Weight: 270 Kg

Ensign 125 Technical Specifications (mm)
Usable Chamber Dimensions: 460 ∅ x 760 deep
Overall Dimensions (no step): 560 w x 800 d x 1240 high
Overall Dimensions (with step): 560 w x 1100 d x 1240 high
Export Packing Specifications
(heavy duty packing case for shipping, in mm):
690 wide x 1300 deep x 1450 high
1.3 cubic metre
Weight: 295 Kg

Servicing Service Care.
It is essential that Rodwell autoclaves are maintained by the people who know the equipment best– Rodwell trained engineers and accredited overseas agents. Rodwell Scientific Instruments offer a range of service contacts and breakdown service to keep the autoclave in the very best condition.
Calibration
Rodwell Scientific Instruments offer a calibration service using the very latest cycle recording equipment. The standard of work meets or exceeds any standards dictated by accreditation authorities.
Spares
Rodwell Scientific Instrument guarantee that spares are available for at least 10 years after the autoclave manufacture. Rodwell Scientific Instruments has a dedicated spares department which can supply express delivery for the majority of autoclave spares, should they be required.