Precision Trading 60 R3.0 operating instructions Circuit Board Adjustments and Calibration

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Operator Manual, Supercharger 60

R3.0

9.CALIBRATION

•NOTE 1: The Charger-Analyzer must be verified (and calibrated if required) at least once every 12 months, or earlier if deviation from performance is observed. (see first note on section 7).

•NOTE 2: Perform adjustments only when changing parts and components that require re- calibration.

•NOTE 3: Perform a Verification of Performance prior to attempting a calibration (see Section 7, page 25). If the Charger-Analyzer does not perform in accordance to what is called for in Verification of Performance, then, and only then, proceed with an actual calibration (adjustments).

9.1CIRCUIT BOARD ADJUSTMENTS AND CALIBRATION

WARNING! The ground of the electronics circuitry floats on the battery voltage. Make no connections between the electronics ground and the battery or chassis ground. Serious damage to the wiring and control circuits will occur if any part of the circuitry becomes in contact with the chassis while a battery is connected.

NOTE: Most adjustments are performed with no current (no battery required) and require the use of a voltage source to simulate battery voltages such as the CAL-100 Calibrator or a Power Supply. A battery is required for the adjustments of current output.

9.2DIGITAL METERS (see [Figure 6]).

NOTE: Digital meters are adjusted by means of multi-turn trimming potentiometers (trimpots) located on the rear (solder side) of the METERS board.

9.2.1.AMMETER.

9.2.1.1.NOTE 1: Newer versions of this circuit board no longer have a zero adjustment.

9.2.1.2.NOTE 2: Modified versions of this circuit board may not have a zero adjustment. (not required).

9.2.1.3.ZERO:

•Adjust the zero with R3 for a reading of 00.0 (the exact point is when the + - signs alternate).

9.2.1.4.SCALE:

•This meter has a full scale of 199.9 millivolts to read a 100 AMP shunt with an output of one millivolt per AMP.

•Verify and calibrate using an external ammeter with digital readout. Adjust R10 at a minimum of 25.0A for a reading within ±0.1A of the reference ammeter.

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Contents Specifications Installation Calibration Table of Figures Introduction and System Description Operator Manual, Supercharger R3.0 Block Diagram Constant Current Charge normal mode Condensed Operating InstructionsConstant Voltage Peak Voltage Charge Discharge Specifications ChargeMaximum Current 50 Amps Minimum Increment 0.1 AMP Overvoltage Protection Overtemp ProtectionOVER/UNDER Current Protection Reverse Polarity ProtectionDischarge Maximum CurrentMinimum Increment Timer Terminal VoltageOverheat Protection Accuracy and Stability Power Failure ProtectionLine Input Voltage Time LimitsDigital Panel Meters VoltmeterControls and Displays SW4 Cell Selector 10 SW6 Voltage Mode Selector11 SW7 Timer Speed Selector SW5 Digital Voltmeter Input SelectorFront Panel 14 DS2A Dual 12 DS1A Reset13 DS1B CYC END 15 DS2B MainAudible Alarm Modes of Operation Constant Current ChargeSingle Rate Constant Voltage Charge Peak Charge Analysis Auto CUT-OFF Deep Cycle Full DischargeOperating Instructions GeneralConstant Current Charge Peak Voltage Charge Discharge Float/Peak Voltage Chart Cell Float Peak Selector VoltageOperating Notes and Precautions Installation Bench SpaceLine Voltage Line Voltage Wiring, 208/230V Required Test Equipment and Accessories Verification of PerformanceVisual Verification Timer Verification Battery Overtemp CUT-OFF Voltage Fault TestReverse Polarity Test Overvoltage CUT-OFFDischarge Voltage CUT-OFF Full Discharge Current TrackingVoltage Control Float Voltage Peak VoltageMeters Circuit Board Adjustments and Calibration CalibrationDigital Meters see Figure Voltmeter Meters Board Adjustments Control Switch Board Adjustments 3.2. R11 Discharge Cell Calibrate3.5.2. R28 LOW Current Calibrate 3.5.3. R25 High Current CalibrateCurrent Control Board Adjustments Control Board as ground reference for voltage measurements Operator Manual, Supercharger R3.0 Voltage Control Board Adjustments Operator Manual, Supercharger R3.0 Circuit Board Sequence Reset Indicator and Timer Display do not Turn on Troubleshooting and RepairsTroubleshooting Burned Resistors in the Discharge HeatsinksVoltage Fault in CV or Peak Fault Lights on and no Audible ALARM. Unit Runs NormallyCurrent Fault in CV Current Tracking is OFF by a Small Constant AmountProcedure Finding a Shorted Discharge TransistorEquipment Required Measuring for a shorted transistor Location of Current Limiters Power Block Diagram Parts Replaceable Modules and PartsCircuit Boards OtherBattery Testing Notes Disclaimer Revision Index Revision Date

60 R3.0 specifications

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