I just took apart an old 8842A that apparently was connected to excessive voltage--at least 1500V---with some power to back it up. The entire front end protection--4 MOVs and 2 fusible resistors--were incinerated. I removed the burnt parts and subbed in 2 regular 1K resistors (to be repaired properly later, of course) and the meter works properly and is in cal. No evidence of any external damage, the circuit board is unharmed (but sooty) and I'm sure nobody died. I'd say that is 'robust' although I can't quantify that.
Nowhere in CAT documents does it say the the meter should survive.
Again, 61010-2-033 section 14.101 states: "The component shall not rupture and shall operate as intended during the test."
IMO, operate as intended means just that, the DMM continues to read properly.
One of the tests I have shown several times is from section 101.3.2. The criteria, "During and after the test, no damage to the equipment shall occur." IMO, that's not the test equipment being used to test the DMM they are referring to, it's the DMM.
"After the voltage of 4.4.2.101 has been applied to the METER, the METER shall continue to be
able to indicate the presence of HAZARDOUS LIVE voltages up to the maximum RATED voltage.
NOTE The METER is not required to maintain its normal accuracy. A maximum deviation of 10 % is acceptable."
Of course there are many other cases as I have mentioned before. But again, just to be clear, this is outside of my area and I am providing my interpretation of what the standard states. I would find it hard to believe for example that the pass fail criteria for an impulse test would be if the combo generator was damaged or not. Fungus may see it otherwise.
That said, I would imagine that some of the meters I have looked at would pass both the safety and EMC standards with a wide margin but there are far more that wouldn't come close.
You are taking statements out of context.
'The intent of the standard is to ensure the safety of the operator and surrounding area.
Performance / functional requirements are not covered by the standard'. (1)101.3.2 deals with the fuse protection on the A/mA ranges. Of course no damage should occur, as a conductive path or spark for 1 minute with a 2000V test applied, would cause havoc and affect the safety of the operator.
4.4.2.101 refers to the voltage (1100V AC) applied to voltage measuring terminals in
single fault conditions 4.4, (with either MOV or current limiting resistor shorted). The meter must be able to display the presence of a hazardous voltage in a damaged condition (safety consideration).
As for 14.101 (10 high voltage transients), the standard requires that no hazard shall arise due to the operation of overvoltage limiting component.
The component (MOV, sparkgap) shall not rupture and shall operate as intended during the test.
If the component is heated as a result of this test, it shall not heat other materials to their ignition points.
There is no concern for the serviceability of the meter after the test. (It may or may not survive)
(1) Claudia Sirch is the global chief engineer for medical, laboratory, measurement and control equipment and laser products at Intertek. She has over 25 years of experience in the testing and certification business, and is a lead and technical assessor in the IECEE CB Scheme. She holds a Bachelor of Science in Engineering Physics from Munich University of Applied Sciences.