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1 SEPTEMBER 2005

POWER PRODUCTS MANUAL

No. 375-905-2

TECHNICAL MANUAL

INSTRUMENT VERIFICATION PROCEDURE

HIGH RATE DISCHARGE TESTER

POWER PRODUCTS

P/N 37512 MODEL ST-375

MFD BY: POWER PRODUCTS INC

27 PAMARON WAY STE E

NOVATO, CA 94949

CAGE CODE 3C8X4

www.power-products.com

POC PAUL CHAIT

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Summary of Contents for ST-375

Page 1: ... 375 905 2 TECHNICAL MANUAL INSTRUMENT VERIFICATION PROCEDURE HIGH RATE DISCHARGE TESTER POWER PRODUCTS P N 37512 MODEL ST 375 MFD BY POWER PRODUCTS INC 27 PAMARON WAY STE E NOVATO CA 94949 CAGE CODE 3C8X4 www power products com POC PAUL CHAIT ...

Page 2: ...ions 2 4 Verification Process 2 4 ILLUSTRATIONS Figure Page 1 Voltmeter Test Setup 3 2 Ammeter Test Setup 3 3 Timing Setup Test 5 Data Sheet 375 9 05 TABLES Table Page 1 Verification Description 1 2 Equipment Requirements 2 3 Tolerance Limits 3 4 Timing Requirements 4 5 Summary Table of Tolerance Requirements 5 ...

Page 3: ... Terminals connected to a pair of test points on the front panel The voltmeter also has test points 1 2 This procedure describes the verification of accuracy of Power Products High rate Discharger Tester P N 37512 The 37512 being verified is referred to herein as the TI Test Instrument The TI operates from the battery being tested and does not require any other power 1 3 This procedure includes te...

Page 4: ...re Table 2 Equipment Requirements for TI Item Minimum Use Specifications Calibration Equipment SECTION 3 PRELIMINARY OPERATIONS 3 1 Ensure that power switch is set to OFF to avoid arcing or damage to the battery or power supply terminals or the TI battery clamps 3 2 Connect the Battery or power supply to the TI Observe polarity SECTION 4 VERIFICATION PROCESS NOTE Unless otherwise specified verify ...

Page 5: ... TI DC BATTERY CABLE TO FROM THE BATTERY 4 1 6 LOAD CURRENT TESTS Connect the equipment as shown in Figure 2 4 1 7 Ensure that the AUTO OFF MANUAL switch is set to OFF 4 1 8 Connect shunt as described in table 2 item 2 2 and power supply or optima battery as described in table 2 item 2 3 4 1 9 Set switch to Manual to obtain Readings Load will not remain on over 15 seconds Refer to table 5 par 4 1 ...

Page 6: ...to AUTO The green led illuminates 4 1 14 At the end of 15 seconds the voltmeter holds freezes its voltage Approximately 3 seconds later a contactor click out is heard and the green led turns off Table 4 Timing Requirements TI Time Tolerance Limit AUTO test led ON Load ON START Voltmeter Holds Battery End Voltage 15 Sec Within 2 Sec Retains the voltage reading on hold Load contactor drops out Green...

Page 7: ...5V 75 375 Amp XAMPLE Actual voltage reading 10 9 difference is 0 4 Amps ptable Test reading is Amperes 4 If actual volts are 10 1 differences is 0 4 le ps 10 5V S 1 2 Multiply Difference by 35 3 If higher than 10 5 add to 3 4 If lower than 10 5 subtract from 5 Acceptable Result must be the actual reading 10 Amperes E STEPS 1 2 0 4 X 35 Amps 14 Amps 3 14 Amps 375 Amps 389 4 5 Acce 389 10 Amps 379 t...

Page 8: ...sitive Black to Negative Meter reads Battery Open Circuit voltage Toggle switch to AUTOMATIC this is a 15 sec load test At end of 15 seconds meter locks in voltage reading Relay click heard after lock in If voltage is at or above 10 0 volts Battery is acceptable Below 10 0 volts is unacceptable For Manual test press and hold switch down Cuts Off at 15 sec Set switch to center OFF before removing b...

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