Isotech HYDRA 798 User Maintenance Manual/Handbook Download

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Hydra 798 Iss.10 – 04/18

STIRRED LIQUID BATH

MODEL HYDRA 798

User Maintenance Manual/Handbook

Isothermal Technology Limited, Pine Grove, Southport, PR9 9AG, England

Tel: +44 (0)1704 543830 Fax: +44 (0)1704 544799 Internet: www.isotech.co.uk E-mail: [email protected]

The company is always willing to give technical advice and assistance where appropriate. Equally, because of the programme of

continual development and improvement we reserve the right to amend or alter characteristics and design without prior notice.

This publication is for information only.

Summary of Contents for HYDRA 798

Page 1: ...0 1704 543830 Fax 44 0 1704 544799 Internet www isotech co uk E mail info isotech co uk The company is always willing to give technical advice and assistance where appropriate Equally because of the...

Page 2: ...URES 13 Setpoint Ramp Rate 13 Instrument Address 14 MONITORING THE CONTROLLER STATUS 14 Units 14 OVER TEMPERATURE CONTROLLER H MODEL ONLY 15 OVER AND UNDER TEMPERATURE CONTROLLER M L MODELS 15 OVER TE...

Page 3: ...COVERED BY THIS GUARANTEE INTERFERENCE WITH OR FAILURE TO PROPERLY MAINTAIN THIS INSTRUMENT MAY INVALIDATE THIS GUARANTEE The company is always willing to give technical advice and assistance where a...

Page 4: ...PERSONNEL FAMILIAR WITH GOOD MEASUREMENT PRACTICES IT IS EXPECTED THAT PERSONNEL USING THIS EQUIPMENT WILL BE COMPETENT WITH THE MANAGEMENT OF APPARATUS WHICH MAY BE POWERED OR UNDER EXTREMES OF TEMPE...

Page 5: ...nt must be correctly earthed This equipment is a Class 1 Appliance A protective earth is used to ensure the conductive parts cannot become live in the event of a failure of the insulation The protecti...

Page 6: ...e the calibration of thermometers 5 Do not handle the apparatus when it is hot or cold unless wearing the appropriate protective clothing and having the necessary training 6 Do not drill modify or ot...

Page 7: ...low and one drain pipe 3 Lid 4 This handbook 5 PC Interface Lead yellow Optional accessories are available and will only be present if specified on your order In the unlikely event of any items arrivi...

Page 8: ...arison Accuracy 0 002 C Communications RS422 Uniformity 125 C oil Vertical 0 002 C Horizontal 0 001 to 0 0025 C Uniformity 200 C oil Vertical 0 005 C Horizontal 0 001 to 0 0035 C Safety Compliant to C...

Page 9: ...Page 9 of 26 Hydra 798 Iss 10 04 18 FRONT PANEL CONTROLS A OVER UNDER TEMPERATURE CONTROLLER SAFETY B TEMPERATURE CONTROLLER C HEATER ENABLED D ON OFF SWITCH E FLOW CONTROL...

Page 10: ...Page 10 of 26 Hydra 798 Iss 10 04 18 REAR PANEL...

Page 11: ...c cooling reduction facility built in This is in the form of an internal by pass valve that will reduce the running pressure of the refrigeration system The by pass valve will automatically enable at...

Page 12: ...R404A Quantity 550grams Hydra Low Gas used High stage R404A Quantity 350 grams Low stage R23 Quantity 100grams SETTING UP The whole manual should be carefully read before using the bath and then set t...

Page 13: ...where it is advantageous to limit the heating or cooling rate An example might be when testing bimetallic thermostats by forcing the bath to heat at a controlled rate it is easier to determine the te...

Page 14: ...LER STATUS A row of beacons indicate the controllers status as follows Output 1 op1 Heater shows when the heater is active seen to pulse to display heater output REM This beacon indicates activity on...

Page 15: ...to safe guard water triple point cells or the liquid in the bath from freezing The high trip will isolate the heater if the bath temperature exceeds the set value Set the High Trip value to a suitable...

Page 16: ...e controller to a more suitable value The controller will need to be reset manually even if the controller is switched off it will still power up again in the alarm condition until reset To reset the...

Page 17: ...le or the input signal is out of range Contact Isotech Check rear panel to ensure connection of both control and over temperature sensors HW Er Hardware error Indication that a module is of the wrong...

Page 18: ...ch and control at the target set point 4 Select the correct stir speed using the dial on the left side of the control panel turning the dial clockwise will increase the stir speed and anti clockwise w...

Page 19: ...per operating limit fumes become significant and fume extraction becomes essential Isothermal Technology manufactures a Fluidised Alumina Bath the 875 Bath which overcomes the limitations of oils and...

Page 20: ...ver the routine calibration range To change the liquid 1 Disconnect from the supply 2 Ensure the liquid is at a safe handling temperature Then open the drain tap 3 Drain the liquid into clean containe...

Page 21: ...r facility access is via the two labeled connectors in the rear of the bath Hydra models L and M manufactured before March 2005 do not have this cooling pipe fitted Water passed through the coil will...

Page 22: ...g and maintenance To clean the inside of the tank assembly simply remove the electrical supply Remove the motor cover via the four screws on the side Remove the four screws securing the motor plate to...

Page 23: ...hen linked to a single RS232 see diagram Note The RS 422 standard specifies a maximum lead length of 1200M 4000ft A true RS422 port will be required to realise such lead lengths The Isotech conversion...

Page 24: ...des of CNP are retained 4 It is the responsibility of the user to ensure the validity of all stored results and printed certificates Isothermal Technology Ltd accept no responsibility for any errors c...

Page 25: ...ry LabVIEW run time support files 4 Should you ever need to uninstall the software then use the Add Remove Programs option from the Control Panel Starting Cal NotePad From a Standard Installation Clic...

Page 26: ...Equalising Block 4 pockets 8mm x 160mm deep Copper Equalising Block 4 pockets 8mm x 160mm deep 798 05 02A 798 05 02B Standard Dual Cell Holder 798 05 03 Thermometer Support Kit 798 05 04 Mercury Trip...

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