The above DCR text is amended as follows:
Note – Modifications as follows include those requested by REL-STPI/F, as agreed by ESA & CNES.
The proposed draft specification is changed to be 3601/002 draft 2G which incorporates all changes per this DCR including these modifications.
Item 4) Figure 2, Add the following change:
Dimension F is specified as a diameter (for clarification purposes).
Item 7) Delete item and replace with the following:
7) Para 4.7.1 & Table 4, Miss Test is renamed ‘Run-in’ and Table 4 is used to specify Parameter Drift Values.
Miss Test Contact Resistance limit is deleted from Table 4 and replaced by Pick-up Voltage & Drop-out Voltage drift values. Drift value limits are not specified at this time. Drift values are to be recorded for information purposes only in order to amass data so that suitable drift value limits can be specified at a later date (in a later revision).
Item 9) Table 2 & 3, Add the following change:
The limit for Contact Voltage Drop is amended to be 10mV maximum (was 100mV max; correction of error to be consistent with a contact resitance value of 100mohm)
Item 16) Table 6.
Amend the Intermediate Current bullet to read as follows:
· Intermediate Current: 300mV during monitoring (clarification only; no actual change); 20mV during final measurements (per DCR157)
Amend the Operating Life Low Level Load and Mechanical Life bullet to read as follows:
· Operating Life Low Level Load and Mechanical Life ( = Low Level Life): 20mV during final measurements (was 200mV)
Add new bullet as follows:
· Operating Life Resistive (= Resistive Life): 2.8V during monitoring (clarification only; no actual change); 20mV during final measurements (was 200mV)
Item 17) Table 6, Add Coil Life electrical measurements to the list of tests added to Table 6.
Item 18) Delete item and replace with the following:
18) Table 6, Addition of drift values (for Pick-up Voltage & Drop-out Voltage) during the following tests:
Note - Drift value limits are not specified in the table at this time. Drift values are to be recorded for information purposes only in order to amass data so that suitable drift value limits can be specified at a later date (in a later revision). Note 1 is added to clarify this position.
• Vibration (= Low Level Sine Vibration)
• Mechanical Shock (= Low Level Mechanical Shock)
• Overload
• Intermediate Current
• Operating Life Resistive (= Resistive Life)
• Operating Life Low Level Load and Mechanical Shock (= Low Level Life)
• Random Vibration (new test)
• High Level Sine Vibration (new test)
• High Level Mechanical Shock (new test)
Note 1 also permits an additional measurement (of drift parameters) prior to the test in question in order to facilitate the drift calculation.
Add new items 19 & 20 as follows:
New Item 19) Para 4.5.1, Marking, item (a) & Para 4.5.2, Terminal Identification is deleted from the list of mandatory marking items (Terminal identification is actually specified by reference to the position of the case tab, as specified in Para 1.6).
Note - The Manufacture is still permitted to mark a circuit schematic on the body of the relay, if space permits, under the Marking category of ‘Manufacturer’s Own Marking’.
New Item 20) Figure 3. Notes are added (to clarify connections)
In the Justification section amend ‘d) Implement drift measurement’ to read as follows:
d) Implement drift measurement for Pick-up Voltage & Drop-out Voltage during Screening (over Run-in) and during Qualification and Periodic Testing on specific tests (see items 7 & 18 above). Limits have not been specified at this time due to lack of applicable performance data. Measurements will now be recorded for information purposes so that suitable drift value limits can be specified at a later date in a further revision of this specification. This change has been agreed with the ESCC QPL Manufacturer REL-STPI/F.
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