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Solartron Analytical Power Booster System EXTBOOST50V5A User Manual

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Power Booster
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USER GUIDE

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Summary of Contents for Solartron Analytical Power Booster System EXTBOOST50V5A

  • Page 1 Power Booster System USER GUIDE...
  • Page 2 Tel +44 (0) 1252 556 800 E­mail: parsolsr.support@ametek.com Web: http://www.ameteksi.com For details of our agents in other countries, please contact our UK office. Solartron Analytical pursues a policy of continuous development and product improvement. The specification in this document may therefore be changed without notice.
  • Page 3 14906001_AA 12-09-07...

  • Page 5: General Safety Precautions

    GENERAL SAFETY PRECAUTIONS The equipment described in this manual has been designed in accordance with EN61010 "Safety requirements for electrical equipment for measurement, control and laboratory use", and has been supplied in a safe condition. To avoid injury to an operator or service technician the safety precautions given below, and throughout the manual, must be strictly adhered to, whenever the equipment is operated, serviced or repaired.
  • Page 6 General Safety Precautions (continued from previous page) NOTES, CAUTIONS AND WARNINGS For the guidance and protection of the user, Notes, Cautions and Warnings appear throughout the manual. The significance of these is as follows: highlight important information for the reader’s special attention. NOTES guide the reader in avoiding damage to the equipment.

  • Page 7: Table Of Contents

    Booster User Guide Contents 1. INTRODUCTION ....................1-1 1.1 THEORY OF OPERATION................. 1-2 1.1.1 Measurement Scaling ..............1-4 2. INSTALLING THE UNIT ................... 2-1 2.1 CHECKING THE ACCESSORIES.............. 2-1 2.2 SITING THE BOOSTER ................2-2 2.3 CONNECTING THE AC SUPPLY .............. 2-2 2.4 CONNECTING THE BOOSTER TO A 1280 SERIES POTENTIOSTAT..
  • Page 8 Contents Booster User Guide 5. IMPEDANCE MEASUREMENT ................5-1 5.1 BIAS .......................5-1 5.2 POTENTIOSTAT/GALVANOSTAT BANDWIDTH ........5-1 5.3 INTEGRATION TIME..................5-2 5.4 RANGE/AUTORANGE ................5-2 5.5 MAINS HARMONICS..................5-2 6. SYSTEM SPECIFICATION ................6-1 6.1 MODELS.....................6-1 6.2 ELECTRICAL....................6-1 6.2.1 Impedance Measurement Accuracy..........6-2 6.3 MECHANICAL ....................6-2 6.4 ENVIRONMENTAL ..................6-2 6.5 STANDARDS....................6-2 7.
  • Page 9 Contents Booster User Guide Table 2-1 Interconnection Cable Set for the 1280 Series ..........2-1 Table 2-2 Interconnection Cable Set for the CellTest System .......... 2-1 Table 2-3 CellTest Booster Control Outputs..............2-6 Table 4-1 Operating Ranges of Booster Variants............. 4-1 14906001_AA 12-09-07...

  • Page 11: Introduction

    Booster User Guide 1. Introduction The Power Booster is a standalone high power amplifier that increases the voltage and current drive capability of potentiostat and galvanostat instruments, to provide testing of high power fuel cells, batteries and supercapacitors. Figure 1-1 Front panel view of the power booster. The unit is available in several variants that cover a range of voltage and current drive/sink capabilities.

  • Page 12: Theory Of Operation

    Introduction Booster User Guide Figure 1-2 Rear panel controls on the power booster. THEORY OF OPERATION The power booster is an amplifier built to interface directly with potentiostat/galvanostat instruments. This section describes the way in which the booster inter-acts with these instruments. The main function of a potentiostat is to apply a defined voltage to a load and to measure the resulting current through it.
  • Page 13 Introduction Booster User Guide The reference electrode connections RE1 and RE2 enable measurement of the voltage across the cell (or the part of the cell that is of interest), thus eliminating from the measurements the ohmic drop due to the CE and WE cable connections. To be able to interface directly with a potentiostat, and thus enable higher current and voltages to be applied to the load, the booster has the internal structure outlined in Figure 1-4.

  • Page 14: Measurement Scaling

    Introduction Booster User Guide 1.1.1 MEASUREMENT SCALING When enabled, the booster increases the output voltage of a potentiostat by a factor of 10 and the output current by a factor of 1000. For example, if you set your potentiostat to output a potentiostatic drive of 2V the booster increases this to 20V.

  • Page 15: Installing The Unit

    Booster User Guide 2. Installing the Unit To ensure that the booster operates safely and satisfactorily within its specification, install the unit as described below. CHECKING THE ACCESSORIES A full set of cables should accompany the booster. Check to see that there is a full set of the correct cables as follows: A two-metre cable for connecting the booster to the ac supply.

  • Page 16: Siting The Booster

    Installing the Unit Booster User Guide SITING THE BOOSTER When choosing the site, remember the power level of the booster and act accordingly. Do not use the unit near flammable materials. Allow space around the booster for air circulation. To cool the unit, fan assisted ventilation takes air in through the front panel and expels it from the rear.

  • Page 17: Connecting The Booster To A 1280 Series Potentiostat

    Installing the Unit Booster User Guide CONNECTING THE BOOSTER TO A 1280 SERIES POTENTIOSTAT 2.4.1 POTENTIOSTAT CONNECTIONS On potentiostats such as the 1280, 1285 and 1287, the , and connectors connect to a single 25-way ‘D’ type connector on the booster rear panel.

  • Page 18: Connecting The Booster To The Celltest System

    Installing the Unit Booster User Guide CONNECTING THE BOOSTER TO THE CELLTEST SYSTEM 2.5.1 BOOSTED CHANNEL CONNECTIONS A cable is provided for connecting a channel on the CellTest unit to the MAIN connector on the booster rear panel. This cable carries the connections CellTest for CE, RE1, RE2, Lo, and WE.

  • Page 19: Remote Control Connections

    Installing the Unit Booster User Guide 2.5.2 REMOTE CONTROL CONNECTIONS connector on the booster enables the unit to be remotely controlled REMOTE for connecting the load in or out of the circuit at the booster power output. The load is connected when pins 4 and 5 on the connector are shorted.

  • Page 20: Assembling The Booster Control Cable

    Installing the Unit Booster User Guide 2.5.3 ASSEMBLING THE BOOSTER CONTROL CABLE The control cable should be assembled in accordance with the channel for which it is to be used. See Table 2-3 and Figures 2-4, 2-5 for details. Note that the control connections to the 25-pin ‘D’-type socket are different for each channel.

  • Page 21: Connecting The Booster To The Load

    Installing the Unit Booster User Guide CONNECTING THE BOOSTER TO THE LOAD The booster is connected to the load from the front panel socket shown in Figure 2-6. Figure 2-6 Booster output socket Suitably rated cables, 2 metres long and wired into the appropriate pins of a single plug, are provided for connecting the booster to the load.

  • Page 23: Running An Experiment

    Booster User Guide 3. Running an Experiment Once the booster is connected to the potentiostat and the load, it is ready for use. The recommended procedure is: 1. Connect the equipment but leave it disconnected from the cell. 2. Turn on the switch, on the rear panel of the booster, and leave it to MAINS settle for 30 minutes.

  • Page 24: Booster Status Indicators

    Running an Experiment Booster User Guide BOOSTER STATUS INDICATORS The following LEDs are available on the booster front panel (Figure 3-1), to indicate the status of the booster. (green) Indicates that the booster is powered up. Power (red) Indicates that the booster has operated beyond Overload its normal capacity and the counter electrode has been automatically disconnected from the...
  • Page 25 Running an Experiment Booster User Guide When either of these conditions occurs, the LED will turn off, indicating CE on that the counter electrode has been disconnected from the cell. Overload and Over Temperature conditions may both occur at the same time, because the temperature is a consequence of power consumption, and in that case the booster will shut down with both LEDs on.

  • Page 26: Emergency Stop

    Running an Experiment Booster User Guide EMERGENCY STOP In an emergency, the output of the power booster can be stopped by pressing the button on the front panel, to open-circuit the booster output. However, STOP there is no control feedback from the booster to the controlling computer, so if an experiment is to be continued after an emergency stop, the following procedure must be used: 1.

  • Page 27: Power And Heat Management

    Booster User Guide 4. Power and Heat Management All boosters are fully protected against any thermal failure and excessive internal temperatures. The following information is given to allow you to run long experiments safely, without the possibility of being interrupted by overheating. BOOSTER VARIANTS In this series of boosters, three variants provide a range of voltages and currents for sourcing (cell charging) and sinking (cell discharging) .

  • Page 28: Booster Variant 50V/25A/125W

    Power and Heat management Booster User Guide When a booster is acting as a power source, the load absorbs only part of the power available from the booster supply, and the remainder is dissipated as heat within the booster. Each of these boosters is able to operate continuously, or for a limited period of time, within certain ranges of voltage and current as indicated in Table 4-1.

  • Page 29: Impedance Measurement

    Booster User Guide 5. Impedance Measurement BIAS For voltage control applications, the DC bias (polarization voltage) is usually applied relative to the open circuit cell voltage, for example: ±100mV relative to open circuit may be used to charge or discharge the cell •...

  • Page 30: Integration Time

    Impedance Measurement Booster User Guide INTEGRATION TIME Where measurement results are affected by noise, it is advantageous to use a longer integration time. RANGE/AUTORANGE The use of auto-ranging may lead to ranging transients. Using a fixed range avoids this problem and the time penalty incurred in range searching. However, you must be sure to select a range that is suited to the experiment to be run.

  • Page 31: System Specification

    Booster User Guide 6. System Specification MODELS Boost 12V20A +12V / -3V, ±20A Boost 24V10A +24V / -3V, ±10A Boost 50V5A +50V / -3V, ±5A Boost 50V25A +50V / -3V, 0 to -25A Discharge mode only, for fuel cell tests, maximum power 125W Boost 100V3A +100V / -3V, ±3A ELECTRICAL...

  • Page 32: Impedance Measurement Accuracy

    System Specification Booster User Guide 6.2.1 IMPEDANCE MEASUREMENT ACCURACY The following graph gives the impedance magnitude accuracy (%) and the impedance phase angle accuracy (°), where available. Note: 1V ac excitation, except at lower impedance levels where the excitation is reduced to maintain the current limit.

  • Page 33: Index

    Booster User Guide 7. Index 1280 series potentiostats ......2-3 Integration time........5-2 control outputs........2-3 LEDs, booster ........3-2 AC supply ..........2-2 Load ....1-2, 1-3, 2-3, 2-5, 3-1, 4-1 connection ........2-2 connections ....... 1-2, 2-1, 2-7 frequency..........5-2 See also cell........... voltage ..........v, 2-2 MultiStat ..........
  • Page 36 Tel +44 (0) 1252 556 800 E­mail: parsolsr.support@ametek.com Web: http://www.ameteksi.com For details of our agents in other countries, please contact our UK office. Solartron Analytical pursues a policy of continuous development and product improvement. The specification in this document may therefore be changed without notice.

This manual is also suitable for:

Power booster system seriesPower booster system extboost24v10aPower booster system extboost12v20aPower booster system extboost50v25aPower booster system extboost100v3a

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