How to Operate Shock Pulse Tester

In our earlier post, we discussed the basic introduction of a Shock Pulse tester. Now, In this post let’s discuss how to operate a Shock Pulse Tester.

Functions of keys of shock pulse tester T 2000

Various operations of SPT:

Following are basic operations of SPT

SETTING RPM AND SHAFT DIAMETER

Press the SPM/VIB key to select BEARING TEST. Now press set key for entering the rpm and diameter. Follow the following steps:-

(i)            Press the set key again to move the cursor in first position in the RPM line.

(ii)          Press UP and DOWN key to enter numeric value.

(iii)         To shift the positions of cursor for entering the next number press both UP and DOWN key together, complete the rpm data.

(iv)         Press SET key to move the cursor from rpm to diameter line. Follow the step (ii) and (iii) to enter the diameter value.

(v)          Now press SET KEY to obtain the dBi value.

(vi)         The instrument is ready to take normalized shock value reading.

SHOCK PULSE READING

It is also divided into following sub-categories:

        NORMALIZED READING

(i)     Program the Shock Pulse Tester by entering dBi value.

(ii)    Now connect the SPT probe to the bearing casing as close as possible to the bearing.

(iii)   Press key “M” for taking the reading.

(iv)   Once dBm and dBc value is displayed, go for peak reading measurement.

(v)    For peak reading measurement use up and down key to get peak indication flash.

(vi)   Now continue using up/down key to get a possible delayed flash that indicate the peak shock available in the bearing, record this reading.

(vii)  Observe the arrow indication pointing at which condition scale GOOD, CAUTION, BAD condition indicated by GREEN (0-20dBn), YELLOW (21-35dBn), RED (>35dBn) respectively.

       UNNORMALIZED READING

(i)     Need not program with dBi value.

(ii)    Use the Shock Pulse Tester for measurement straightway without feeding rpm or diameter.

(iii)   Reading observed in dBm or dBc will be absolute shock value dBsv.

(iv)   There will be no arrow indication this time.

Note:       dBsv-dBi=dBn i.e. reading measured in normalized scale (dBn) has less value by dBi amount when measured in unnormalized scale (dBsv ).

                PEAK READING

(i)  Once reading is taken in normalized or in unnormalized scale the spm go for peak reading

(ii) Observe the display for dbm and dbc value

(iii) Now press arrow key button up/ down, observe another dbm reading in bracket ().

(iv) Come to a situation by using up/ down key when peak indication led start flashing.

(v)  Try bring the flashing rate low, when led continuously glow; observe both dbm reading, they will be close                                      enough

(vi) Take the dbm reading. Record this as actual maximum shock available in the bearing.

               TAKING TACHO READING

(i) Use the tacho probe, connect it to tacho connector of the Shock Pulse Tester

(ii) Now system automatically goes to tachogenarator function

(iii) Press M key, led light beam is released , point it to a reflecting tape fixed on a rotational machine.

(iv) Observe the rpm in the display.

Precautions taken while using Shock Pulse Tester

  • Before conducting the test, battery test is to be conducted first.
  • The transducer is to be placed at nearest point on the bearing for taking exact reading.

I hope you have got some idea about how to operate Shock pulse tester.

Read Also:
Shock Pulse Tester
SPM readings

latest articles

explore more

32 COMMENTS

  1. Howdy just wanted to give you a quick heads up. The text in your content seem to be running off the screen in Internet explorer. I’m not sure if this is a format issue or something to do with browser compatibility but I thought I’d post to let you know. The design look great though! Hope you get the problem solved soon. Kudos

  2. hello!,I like your writing so much! share we communicate more about your article on AOL? I require an expert on this area to solve my problem. May be that’s you! Looking forward to see you.

  3. My wife and i got really lucky Edward managed to do his basic research via the precious recommendations he was given from your own web page. It’s not at all simplistic to simply continually be handing out things that many others may have been making money from. And we also consider we have you to give thanks to for this. Those illustrations you’ve made, the simple web site menu, the relationships you make it possible to foster – it’s all fabulous, and it’s really leading our son and our family consider that this issue is cool, which is certainly very pressing. Thanks for the whole thing!

LEAVE A REPLY

Please enter your comment!
Please enter your name here