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Summary of Contents for Time Electronics 1090
- Page 1 Time Electronics 1090 Temperature Calibrator Technical Manual V1.3 01/03/16 Time Electronics Ltd Botany Industrial Estate, Tonbridge, Kent, TN9 1RH Tel: +44(0)1732 355993 Fax: +44(0)1732 770312 Email: mail@TimeElectronics.co.uk Web Site: www.TimeElectronics.com...
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Page 2: Table Of Contents
Specifications ....................14 1090 Calibration Procedure ................18 Guarantee & Servicing ..................20 All Time Electronics' instruments are subject to continuous development and improvement and in consequence may incorporate minor detail changes from the information contained herein. 1090 Technical Manual... -
Page 3: General
The 1090 is supplied in a robust case with a carrying strap. A pocket for this manual and test leads is provided. Full operation, including re-charge, is possible without removal from the case. -
Page 4: Front Panel Controls
2. Front Panel Controls Keypad Primary and Secondary functions Most of the 1090’s keys are dual function. Their primary function is shown in blue on the lower half while the secondary function is shown in red, on the upper half. To access the secondary functions press the ‘SHIFT’... - Page 5 Note: The secondary keypad functions are available only when relevant to the selected operating mode e.g. ’Auto Step’ is not available when the 1090 is in measure mode. Also please note that the ’SHIFT’ mode has an automatic time out. This means that it will automatically be cancelled if the secondary function is not selected within a few seconds.
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Page 6: Operating Instruction
(mV measure) and displays Meas 0.00mV Connecting the Thermocouple Connect the thermocouple cable or compensating cable to the 1090’s input terminals. Thermocouple Selection Select the type of thermocouple that you wish to measure by pressing the SHIFT’ key immediately followed by the thermocouple type. -
Page 7: Thermocouple Source
F by pressing ‘SHIFT’ then the ‘ F’ key. For this mode connect a PT100 sensor to the unit’s OUTPUT terminals. The unit will measure temperature. Pressing the ‘ENTER’ key will momentarily display the equivalent ohms value. 1090 Technical Manual P a g e... -
Page 8: Rtd (Prt) Source
F by pressing ‘SHIFT’ + ‘ F’ keys For this mode connect the device to be calibrated to the 1090 OUTPUT terminals. The 1090 is now ready to simulate a Pt100 probe. Use the ‘Up/Down’ arrow keys to step change the temperature. -
Page 9: Ma Source And 24V Process Loop Drive
3.10. Storing and Recalling Values In the source mode the 1090 unit is able to store and recall up to ten output values. The values may be stored in locations 0 to 9). -
Page 10: Step And Auto-Step Functions
1. The cycle of stepping through the locations will continue indefinitely until a key is pressed - this will terminate the cycle immediately. 1090 Technical Manual P a g e | 10... -
Page 11: Inching (Increment/Decrement)
C. To change to manual operation press ’ENTER’ Man CJ _ _ _ _ _ _ _ Enter a degree value using the number keys and press ‘ENTER’ The unit reverts to Auto when next switched on 1090 Technical Manual P a g e | 11... -
Page 12: Setting Output Values Between 0.0 And +1.0
Therefore a leading zero must be entered if a positive value of between 0.0 and 1.0 is required, e.g. 0.75. However, this is not the case for settings between 0 and -1.0, where it is allowable to enter just -.75, and a leading zero is not required. 1090 Technical Manual P a g e | 12... -
Page 13: Maintenance
4. Maintenance 4.1. Battery Status and Recharging The 1090 is powered from an internal metal hydride battery pack with a capacity of 5AH. This provides up to 60 hours of continuous operation. The mains recharger will recharge the battery fully in approximately 6 hours, the charging status being indicated by the LED on the charger. -
Page 14: Specifications
-150 to 750 -200 to 0 0 to 400 -50 to 400 400 to 1750 -50 to 100 100 to 1750 110 to 1000 1000 to 1800 -100 to 890 -50 to 400 1090 Technical Manual P a g e | 14... - Page 15 Millivolt Measure 0 to +/- 30mV Resolution: 10µVAccuracy: ± 0.05% of F.S± 1 digit Input resistance 100KΩ Milliamp Measure 0 to +/- 60mA Resolution 20µA Accuracy ± 0.05% of F.S. ± 1 digit Input resistance 0.5Ω 1090 Technical Manual P a g e | 15...
- Page 16 300.0 400.0 500.0 600.0 700.0 800.0 Accuracy °C PT100 MEASURE (0.2 degC or degF resolution) 0 to 300.0Ω, 2 wire. 250.0 Reading °C -100.0 -50.0 100.0 150.0 200.0 300.0 Accuracy °C 1090 Technical Manual P a g e | 16...
- Page 17 The mains re-charger supplied allows full recharge within approximately 6 hours. To conserve battery life a user inactivity automatic power down feature is included. Dimensions 235 x 150 x 75 mm 1.25 Kg (9.25 x 6 x 3 ins 2.8lb) 1090 Technical Manual P a g e | 17...
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Page 18: Calibration Procedure
CJ sense point in degrees C. 7) Pt100 Only perform this task if the mA/pt100 board is fitted. Connect a 300.0Ω precision resistor across the output terminals Press ENTER. The 1090 will then restart. 1090 Technical Manual P a g e | 18... - Page 19 The PRT/Current board has calibration adjustments on-board for current source and measure and can be supplied ready-calibrated for retrofitting in the field. When a 1090 unit is initially factory calibrated, it is necessary to fit a calibrated PRT/Current option board so that step 8 can be completed (this calibrates for the initial accuracy of the on-board voltage reference).
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Page 20: Guarantee & Servicing
We maintain comprehensive after sales facilities and the unit can, if necessary be returned to us for servicing. During this period, Time Electronics Ltd will, at its discretion, repair or replace the defective items. For servicing under guarantee, the instrument type and serial number must always be quoted, together with details of any fault and the service required.
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