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Model 4299-2 Dual-Unit Rack-Mount Kit Installation Instructions 

PA-909 Rev. J April 2021 

 

3.  Attach the front rack-ear (2602-355) to the outside of each instrument using two Phillips pan-head screws 

(#8-32 × 3/8 PPH) on the same side as the rear rack-mount bracket (2602-334). 

Figure 5: Front rack-ears 

 

Summary of Contents for Keithley 4299-2 Dual-Unit

Page 1: ...ts included in the kit Quantity Description Keithley part number 2 Hinge 2602 328 2 Front rack ear 2602 355 2 Rear rack mount bracket 2602 334 2 Rack mount extension arm 2602 335 1 Rear bracket 2304 327 1 Quick release pin FA 352 8 Cage nut FA 274 2 6 Lock washer 6LKWA 2 Washer WA 81 4 8 32 3 8 in Phillips pan head screw 8 32 3 8PPH 4 8 32 3 8 in Phillips flat head screw 8 32 3 8PFH 4 10 32 3 8 in...

Page 2: ...nd unplug all cables before installing an instrument in a rack Failure to remove power before installation may cause personal injury or death from electrical shock Heat sources should be mounted away from the instrument cabling and accessories with sufficient space provided between the instrument and heat source for airflow and cooling To prevent damaging heat build up and ensure specified perform...

Page 3: ...rientation arrows on the mounting ears as shown in the following figure Figure 1 Rack mount kit handle removal 2 After you align the arrows 2 pull the ends of the handle 1 away from the case 3 Remove the screw that secures each mounting ear 3 4 Pull down and out to remove each ear Figure 2 Mounting ear removal 5 From the bottom of the instrument pull out the rubber feet and remove the screws 4 see...

Page 4: ... by side in the same position that they will be installed in the rack 2 Secure one rear rack mount bracket 2602 334 to each instrument on the selected side using two Phillips pan head SEMS screws 10 32 3 8 PPHSEM If the two instruments are not the same length do not use one of the rear rack mount brackets Refer to Install the instruments on page 9 To install two instruments that are of unequal len...

Page 5: ...lation Instructions PA 909 Rev J April 2021 5 3 Attach the front rack ear 2602 355 to the outside of each instrument using two Phillips pan head screws 8 32 3 8 PPH on the same side as the rear rack mount bracket 2602 334 Figure 5 Front rack ears ...

Page 6: ...2602 328 to both instruments using two Phillips flat head screws 8 32 3 8 PFH on each make sure the knuckle of the hinge is facing the front of the instrument as shown in the following figure 5 Insert the quick release pin FA 352 in the hinge knuckle to assemble the hinge Figure 6 Secure hinges to instrument ...

Page 7: ...H washers WA 81 and lock washers 6LKWA Figure 7 Install rear bracket Prepare the rack To prepare the rack for installation 1 Install the cage nuts FA 274 into the rack holes to be aligned with the holes in the rack mount extension arms 2602 335 The rack holes selected determine the placement of the instrument in the rack see the following figure 2 Install one rack mount extension arm onto one of t...

Page 8: ... one of the rack mount extension arms Refer to Install the instruments on page 9 To install two instruments that are of unequal length for more detail Figure 8 Rack mount extension arms 3 Repeat the procedure on the other side 4 Install cage nuts into the front rack rail holes aligned with the rear cage nuts 5 Save all unused parts for future use ...

Page 9: ...ll power when needed may expose personnel to hazardous voltages which if contacted could cause personal injury or death To complete this procedure two people are recommended To install the instruments 1 Slide the instruments into the rack by aligning both rear rack mount brackets 2602 334 with the rack mount extension arms as shown in the following figure 2 While supporting the instruments secure ...

Page 10: ...o the rack by aligning the instrument rear rack mount bracket 2602 334 and the rack mount extension arm 2602 335 also align the front rack rail for the other instrument as shown in the following figure 2 While supporting the instruments secure them to the front rack rails with four Phillips truss head screws 10 32 5 8 PHTRSH Figure 10 Securing different length rack rails ...

Page 11: ...nts will be marked as category II or higher Unless explicitly allowed in the specifications operating manual and instrument labels do not connect any instrument to mains Exercise extreme caution when a shock hazard is present Lethal voltage may be present on cable connector jacks or test fixtures The American National Standards Institute ANSI states that a shock hazard exists when voltage levels g...

Page 12: ...r components that are not safety related may be purchased from other suppliers as long as they are equivalent to the original component note that selected parts should be purchased only through Keithley to maintain accuracy and functionality of the product If you are unsure about the applicability of a replacement component call a Keithley office for information Unless otherwise noted in product s...

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