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Table 5. Summary Table of Tolerance Requirements 

TI TOLERANCE 

 

4.1.15 Voltmeter 

0.2 Volts 

4.1.16 Load current and TI internal shunt accuracy. 

res ± 10 Amperes At 10.5V at 10 Seconds. 

onds. 

f. Only: 375A 

375 Ampe
Note: Loaded Battery may not be 10.5 Volts in 10 Sec
Use following steps when battery voltage differs from 10.5 
Volts. 
(For Re

 = 35 Amps/Volt) 

TEP  

. Note Difference From 10.5V 

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 to 399 
 
  
                -14Amps. Subtract from 375 Amps, Acceptab
                reading is 361 Amps ± 10 Amps = 351 to 371 Am

 TIME 

 

13-17 Seconds voltage reading freezes 
16-20 Seconds Drop-out of load, led off

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Содержание ST-375

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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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