M.C. MILLER JR-2, Operating Manual

Page 1: ...MAN090 Model JR 2 Current Interrupter Operating Manual Revised August 19 2011 Catalog 12830...

Page 2: ...the Interrupter in the Rectifier 9 AC DC Current Carrying Limits 11 Example 1 Delayed Start Interruption Begins Later 12 Example 2 Intermediate Start Cycle Begins Now 13 Example 3 Extended Delayed Sta...

Page 3: ...obligation is limited to the repair or replacement of the defective unit or its components at the option of M C Miller Co Inc M C Miller Co Inc is not responsible for products which have been subject...

Page 4: ...of l0 KW loads Reactive Also multiple unit synchronous operation is guaranteed for a normal five day workweek The JR 2 is sync and program compatible with all other models of the Model JR family of cu...

Page 5: ...each start up Synchronization Multiple units may be synchronized before or during operation Re synchronization The JR 2 calculates when the relay should be switching based on start time This allows th...

Page 6: ...led Tactile feedback 16 key Arrangement 5 function keys Time Set Start Set Stop Set 6 On cycle Off cycle 10 digit keys 0 9 1 Enter Key ENTER CYCLE RANGE 1 to 999 9 seconds On Cycle and Off Cycle AUTO...

Page 7: ...fetime 15 hours Since power is required to hold the relay open in the case of the JR2 battery lifetimes will be shorter for longer Off time duty cycles SIZE Exterior Dim 10 5 8 x 9 11 16 x 6 7 8 Metri...

Page 8: ...CD Display Window F Low Battery Indicator G Rectifier Condition Indicator H Display Area for Clock Time Starting Time Countdown Timing and Settings for ON Cycle and OFF Cycle I Keyboard for Setting Ti...

Page 9: ...am which will be overwritten by the next entries The uses for the JR 2 are too numerous to list The following examples will serve as both a set up programming and typical use guide These examples assu...

Page 10: ...ts and Equipment for the Corrosion Engineer 10 When using the JR 2 to interrupt on the DC side the indicated polarities should be observed to reduce wear of the plating on the plunger of the mercury r...

Page 11: ...Interrupter 11640 US Hwy 1 Sebastian FL 32958 Tel 772 794 9448 Fax 772 589 9072 E mail sales mcmiller com Web Site www mcmiller com Instruments and Equipment for the Corrosion Engineer 11 AC DC Curren...

Page 12: ...ed They will be installed in the rectifiers before 8 00 am At 8 00AM the JR 2 s will start their On Off cycle and remain cycling until 5 00PM the same evening At this time the JR 2 s will shut the rel...

Page 13: ...s locations for installation Testing may begin at 8 00 A M Example 2 Immediate Start Cycle Begins Now The JR 2 s will be put in place after interruption cycle begins In other words the units will be s...

Page 14: ...CYCLE 2 0 ENTER 2 sec 2 00 6 Press OFF CYCLE 5 ENTER 0 5 sec 50 7 Interconnect SYNC jacks on all units daisy chain fashion 8 Press CLOCK SET 1 4 3 2 2 32PM press ENTER 14 32 9 When present time your...

Page 15: ...llow Example 1 Display Reading 1 Press START SET 3 2 0 0 ENTER 32 00 In short add 24 00 to desired start time eg 31 00 would be 7 00 A M plus 24 hours 31 00 Miscellaneous Features If STOP SET is not d...

Page 16: ...t Therefore the JR 2 s are constructed so that any one of the operating units may be used as a master to restart the failed slave unit Simply take the slave unit to the working master location and fol...

Page 17: ...ve is now resynched and may be returned to service NOTE The above method may be used to synch the JR 2 s one at a time as needed For example there were 6 JR 2 s to be installed over a long distance by...

Page 18: ...tion of the display window Approximately two hours of operating time remains when the indicator displays Supply Voltage Selection for charging and or powering the unit For the JR2 model with the 3 pin...

Page 19: ...continuous basis If continuous charging during storage is performed the circuit will automatically maintain a full charge regardless of the temperature The battery charging time will depend on the sta...

Page 20: ...ing appropriate for your country However since it is extremely important that the input voltage setting match the AC supply voltage applied to the unit for charging and or powering purposes it is crit...

Page 21: ...points down to the 120V label on the PCB as shown in Figure 6 Step 3 Rotate the clear plastic guide as shown in Figure 7 until the guide points down to the 240V label as shown in Figure 8 Step 4 Re in...

Page 22: ...the set of two fuses as shown in Figure 13 and replace the fuses as necessary be careful not to break the retaining posts The fuses are 5mmx20mm 250V 2A fast acting fuses and these fuses protect the u...

Page 23: ...Interrupter 11640 US Hwy 1 Sebastian FL 32958 Tel 772 794 9448 Fax 772 589 9072 E mail sales mcmiller com Web Site www mcmiller com Instruments and Equipment for the Corrosion Engineer 23 Figure 1 Fi...

Page 24: ...Interrupter 11640 US Hwy 1 Sebastian FL 32958 Tel 772 794 9448 Fax 772 589 9072 E mail sales mcmiller com Web Site www mcmiller com Instruments and Equipment for the Corrosion Engineer 24 Figure 4 Fi...

Page 25: ...Interrupter 11640 US Hwy 1 Sebastian FL 32958 Tel 772 794 9448 Fax 772 589 9072 E mail sales mcmiller com Web Site www mcmiller com Instruments and Equipment for the Corrosion Engineer 25 Figure 7 Fi...

Page 26: ...r 11640 US Hwy 1 Sebastian FL 32958 Tel 772 794 9448 Fax 772 589 9072 E mail sales mcmiller com Web Site www mcmiller com Instruments and Equipment for the Corrosion Engineer 26 Figure 10 Replacing th...

Page 27: ...2 Current Interrupter 11640 US Hwy 1 Sebastian FL 32958 Tel 772 794 9448 Fax 772 589 9072 E mail sales mcmiller com Web Site www mcmiller com Instruments and Equipment for the Corrosion Engineer 27 Fi...