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Autoclave Chamber/Load Probe (SL160) Sensor :
The SL160 series of autoclave chamber/load probe sensors are similar to the SL150 series, but differ in having a 90° bend and a chisel point to allow penetration of the product bottle seal.
When mounting a load probe with a straight sheath into a product bottle/container in an autoclave it is often difficult to achieve the desirable orientation. This is often due to both the weight of the probe lead wire and its restrictive bending radius. The SL160 is designed to circumvent this by having a 90° bend in the probe sheath. The addition of a chisel point at the probe tip also allows it to be inserted with relative ease through the bottle seal it there is one.
The SL160 chamber/load probes are currently being fitted as original equipment by a major autoclave manufacturer.
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A critical indication of the status of bearings on large rotating plant is provided by their running temperature.
Monitoring bearings in this manner provides the ability to recognise any possible upward trend in bearing temperature. This in turn allows for a regime of planned preventative maintainance to be put in place, offsetting the possibility of catastrophic plant failure.
Due to its small physical size the miniature bearing sensor can be positioned close to the bearing surface allowing it to sense any early change in temperature.
These devices are available in both thermocouple and PT100 resistance thermometer format and can be supplied as either single or duplex sensors. The sensor lead wire insulation is in PTFE or glass fibre and lead wire jackets can be protected with stainless steel outer braid.
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This can extend from a simple thermocouple in a benign environment to a complex multi sensor configuration with electronic transmission. It could also be located in an aggressive environment and in an area nominated as being hazardous.
To meet these varying needs we produce a full range of appropriate products. Through careful selection of materials, design and construction (based on the temperature and the environment) we are able to advise the most appropriate solution to your application. This could be from a standard arrangement or custom built.
With our commercial arrangements with other instrument manufacturers we are able to supply a complete instrumentation package when required, from the sensor itself to the indicator, recorder, data logger or other peripheral equipment.
Certificates of Conformity, material certificates and calibration certificates for all products are available at the time of placing an order.
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Miniature Bearing (MBS) Sensor
A critical indication of the status of bearings on large rotating plant is provided by their running temperature.
Due to its small physical size the miniature bearing sensor can be positioned close to the bearing surface allowing it to sense any early change in temperature.
These devices are available in both thermocouple and PT100 resistance thermometer format and can be supplied as either single or duplex sensors. The sensor lead wire insulation is in PTFE and if necessary lead wire jackets can be protected with stainless steel outer braid.
BSWS Bearing sensor wire seal assemblies are low temperature/low pressure glands for embedded sensors to prevent oil wicking along the sensor leads. They seal on the individual insulated leads exiting an oil-filled bearing housing.
Typical aplications are motors, turbines, pumps & journal bearing pedestals.
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Freeze Dryer (FD100) Sensor :
The FD100 freeze dryer sensor was designed to measure very small volumes of liquid product, typically like those found in lyophilizers.
When attempting to accurately measure the temperature of small volumes of product such as that contained in a pharmaceutical vial, temperature conductance can affect the result. This is due to the relatively large mass of the sensor sheath compared to the volume of product being measured.
The FD100 sensor was designed to reduce this effect and is achieved by building a thermal break between the sensing tip and the main probe stem. Temperature conductance is kept to a minimum and the positioning of the face of the miniature detector ensures an optimum time response.
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The SL100 Steriprobe® (Sterimaster® in the USA), load/chamber probe was developed specifically to meet the demanding conditions presented by the chamber environment found in modern autoclaves. The sensitivity and accuracy of the sensor meets the requirements of current European and USA legislation whilst being of robust mechanical design.
The 'Steriprobe' has been designed to withstand these conditions and offers a reliability factor surpassing that previously obtainable. During manufacture every weld undergoes NDT examination and each completed assembly is 100% tested.
These units are available as PT100 resistance thermometers to all tolerance classes and with 3 or 4 wire connection also as type 'T' thermocouples in Class 1 material. They can be supplied in single, duplex or triplex detector format with probe lengths to requirements.
The assembly materials of construction are 316L stainless steel, PTFE and silicone and all components have full traceability.
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Series SL150 (Sterisensor® in the USA) autoclave chamber/load probe
The series SL150 offers increased flexibility with a tough, thick walled silicone rubber protected lead wire FDA listed (21CFR 177 2600). These units were designed for use in both steam and water cycle autoclaves and are used extensively in autoclaves manufactured by most of the major manufacturers, either as original equipment or as replacement parts.
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Mineral Insulated (MIR and MIT) Sensor
Both the MIR and MIT sensors are manufactured from ready made, stock lengths of stainless steel sheathed, mineral insulated signal or thermocouple wire.
These sensors can be produced in either PT100 RTD or thermocouple formats.
The soft annealed stainless steel sheath is flexible and allows the user to bend and shape the sheath when required. MI´s are available from as small as 0.5mm in diameter, far smaller than is possible with fabricated rigid stems and as such are extremely flexible, though not as robust.
Various diameters and grades of stainless steel are also available to suit process requirements. These sensors are supplied as plain stems with lead wire as standard, alternatively terminal heads are available when required and various process connections to suit.
Sensors are available in single, duplex or triplex formats with resistance thermometers available in 2, 3 or 4 wire connection.
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General description :
Thermoelectrical Airflow-Probe
Measuring range 0.01 - 5 m/s
Outputsignals Volt or mA
The probe ThermoAir6 / 64 is suited for measuring small flow ranges of gaseous media. Specially suitable for controls and monitoring functions.
The integrated temperature compensation and individual calibration in our accredited SCS wind tunnel are a guarantee of high precision.
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Autoclave Chamber/Load Probe (SL160) Sensor :
The SL160 series of autoclave chamber/load probe sensors are similar to the SL150 series, but differ in having a 90° bend and a chisel point to allow penetration of the product bottle seal.
When mounting a load probe with a straight sheath into a product bottle/container in an autoclave it is often difficult to achieve the desirable orientation. This is often due to both the weight of the probe lead wire and its restrictive bending radius. The SL160 is designed to circumvent this by having a 90° bend in the probe sheath. The addition of a chisel point at the probe tip also allows it to be inserted with relative ease through the bottle seal it there is one.
The SL160 chamber/load probes are currently being fitted as original equipment by a major autoclave manufacturer.
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Conax buffalo sealing gland
The MHM and MHC series of feedthroughs were designed to produce a leak free method of passing multiple probes or conductors (MHM and MHC) from ambient through to process conditions. Glands are available to carry upto 16 tubes or probes through a single fitting and elements in both metric and imperial sizes from 0.5mm (0.020") to 3.2mm (0.125")
The bodies of these feedthroughs are machined from 316L stainless steel and leak prevention is based upon soft sealant technology using Teflon®.Viton®, Neoprene, Lava & Grafoil®. All sealents are re-usable apart from Lava. Various thread forms and process connections are available including NPT, BSP, weld-neck and Tri-clover hygienic flanges.
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The PG series of feedthroughs were designed to produce a leak free method of passing a single probe or conductor from ambient through to process conditions.
The bodies of these feedthroughs are machined from 316L stainless steel and leak prevention is based upon soft sealant technology using Teflon®. Various thread forms and process connections are available including NPT, BSP, weld-neck and Tri-clover hygienic flanges.
Applying the correct torque to the gland cap nut will ensure a permanent leak free seal without damage to the probe or conductor. Following the removal of a probe or probes for calibration the sealant can be re-used.
Where it is necessary to remove one or more probes (perhaps for operational reasons) when using multiple probes, normal sterilising procedures can still be maintained by fitting the vacant positions with an EGB. This is fabricated in 316L stainless steel to the same diameter of the absent probe. It is constructed with a larger diameter on the chamber side to prevent movement of the blank through the sealant when exposed to chamber pressure.
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Conventional methods of chamber entry for validation thermocouples allow only limited numbers of thermocouples to be used. They are relatively time consuming in their application and frequently prone to unacceptable leakage.
The TCEG/1 addresses both these problem areas by providing individual slots for 18 separate thermocouples and a rapid action, locking and securing mechanism.
By utilising a three part sealant arrangement the gland becomes a TCEG/2 with the opportunity of increasing the capacity to 36 individual thermocouples. Should even more thermocouples need to be accommodated, then a ‘Y’ adapter connected to the chamber entry port can double both these quantities.
For mounting onto the autoclave chamber the TCEG is supplied with a Tri-clamp flange with the option of having a 1½” or up to 2½” flange.
The gland body is machined from 316L stainless steel with the cap in CZ121 brass. Sealants are in medical grade silicone to Shore 40 hardness and in accordance with FDA USP Class VI.
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Conventional methods of chamber entry for validation thermocouples allow only limited numbers of thermocouples to be used. They are relatively time consuming in their application and frequently prone to unacceptable leakage.
The TCEG/1 addresses both these problem areas by providing individual slots for 18 separate thermocouples and a rapid action, locking and securing mechanism.
By utilising a three part sealant arrangement the gland becomes a TCEG/2 with the opportunity of increasing the capacity to 36 individual thermocouples. Should even more thermocouples need to be accommodated, then a ‘Y’ adapter connected to the chamber entry port can double both these quantities.
For mounting onto the autoclave chamber the TCEG is supplied with a Tri-clamp flange with the option of having a 1½” or up to 2½” flange.
The gland body is machined from 316L stainless steel with the cap in CZ121 brass. Sealants are in medical grade silicone to Shore 40 hardness and in accordance with FDA USP Class VI.
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Thermocouple validation wire
Type 'T' thermocouple wire in Class 1 material and to BS EN 60584-1:1996 is supplied with a flat pair of PTFE insulated conductors and a PFA jacket. Conductor sizes are available in a solid 1/0.3mm and 1/0.5mm, or stranded 7/0.2mm formats and can be supplied in 100M and 300M reels.
These can also be supplied in pre-cut lengths, either with a bare hot junction or a Teflon encapsulated tip.
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Validation Thermocouple Wire and Looms (VTFP):
It is a regulatory requirement when validating autoclaves and lyophilizers that Type ‘T´ thermocouples of Class 1 material grade are used.
The VTFP validation thermocouple wire meets this requirement and is supplied either in pre-cut lengths from 1 metre upto 100 metre with a formed hot junction, the hot junction can be left bare or encapsulated in a Teflon tip. The cable can also be supplied on 100/300 metre long reels.
When considering the temperature mapping of large chambers and when multiple thermocouples are to be used, this material can be supplied as a cable loom. This approach eases the installation and general handling of multiple thermocouples and offers a more protective arrangement. All the conductors are identified with an ID number to ease location identity and connectivity.
When required the thermocouple cold junctions can be fitted with miniature or standard size thermocouple connectors.
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Steam Quality (Series 600) Test Kit
High quality steam — an essential requirement for maintaining optimum results in steam sterilisation cycles.
The Series 600 Steam Quality test kit provides the facility for testing the three important components of the steam supply:-
a) Superheat.
b) Dryness value.
c) Non-condensable gas level.
Test procedures meet the current European Standard of EN285 and the UK Health Service Standard HTM 2010.
All test components contained within a flight case of robust construction.
Test kit available in four options to meet individual requirements.
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Thermocouple Capacitance Welders:
Although thermocouple hot junctions are frequently made by twisting a pair of conductors together by hand, this is not considered good practise when accurate and reliable measurements are required.
When validating pharmaceutical autoclaves and liophilizers or temperature mapping process vessels, it is necessary to use thermocouples that have a properly formed homogenous hot junction. This can only be achieved by fusing the two conductors together in a welding process.
The SR Series of capacitance welding machines are an economical solution for producing hot junctions that are able to provide sustained and reliable temperature measurement. The units are based on the capacitance discharge principal and are designed for bench mounting and portable use, operating from a 100/110V or 220/240V AC supply.
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Steam Quality (Series 600) Test Kit
High quality steam — an essential requirement for maintaining optimum results in steam sterilisation cycles.
The Series 600 Steam Quality test kit provides the facility for testing the three important components of the steam supply:-
a) Superheat.
b) Dryness value.
c) Non-condensable gas level.
Test procedures meet the current European Standard of EN285 and the UK Health Service Standard HTM 2010.
All test components contained within a flight case of robust construction.
Test kit available in four options to meet individual requirements.
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Mineral Insulated (MIR and MIT) Sensor
Both the MIR and MIT sensors are manufactured from ready made, stock lengths of stainless steel sheathed, mineral insulated signal or thermocouple wire.
These sensors can be produced in either PT100 RTD or thermocouple formats.
The soft annealed stainless steel sheath is flexible and allows the user to bend and shape the sheath when required. MI´s are available from as small as 0.5mm in diameter, far smaller than is possible with fabricated rigid stems and as such are extremely flexible, though not as robust.
Various diameters and grades of stainless steel are also available to suit process requirements. These sensors are supplied as plain stems with lead wire as standard, alternatively terminal heads are available when required and various process connections to suit.
Sensors are available in single, duplex or triplex formats with resistance thermometers available in 2, 3 or 4 wire connection.
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