[time-nuts] Re: HP 5071A operating parameter trends

[John Ackermann N8UR]

I usually keep mine in standby but happen to have powered it up about a 
week ago.  When it's running I log all the params each minute into an 
InfluxDB database.  Here's a screenshot of the Emult voltage which 
stabilized at about 1912.

That's higher than either you or Tom reported.  I don't know whether the 
absolute value is important, or the change in value over time.

Per Bob's note, I just looked at the beam current and it's been flat at 
100 nA forever.

John


On 5/13/23 10:42, Stan via time-nuts wrote:
> I have been running my "new" 5071A for the past couple of days. I've been
> watching the output of the status message and captured a few of them below.
> The first capture was immediately after the 5071A locked after coming out of
> standby.
> 
>   
> 
> Has anyone else been doing this? Are there particular trends I should be
> aware of that might indicate the beginnings a problem? So far, my 5071A is
> operating perfectly, with no errors on the log file.
> 
>   
> 
> Thanks,
> 
> Stan
> 
>   
> 
> MJD 131 23:56:19
> 
> CBT ID: 3839A00612(S)
> 
> Status summary: Operating normally
> 
> Power source: AC
> 
> Log status: 6 entries
> 
>   
> 
> Freq Offset:         0e-15                   Osc. control:     -3.43 %
> 
> RF amplitude 1:    22.7 %               RF amplitude 2:     22.6 %
> 
> Zeeman Freq:     39949 Hz            C-field curr:     12.218 mA
> 
> E-multiplier:     1565 V                    Signal Gain:     14.4 %
> 
>   
> 
> CBT Oven:         8.9 V                       CBT Oven Err:     0.45 C
> 
> Osc. Oven:       -8.8 V                       Ion Pump:           0.6 uA
> 
> HW Ionizer:       1.0 V                      Mass spec:       10.5 V
> 
> SAW Tuning:     0.0 V                       DRO Tuning:     5.6 V
> 
> 87MHz PLL:     1.2 V                         uP Clock PLL:     2.6 V
> 
> +12V supply:     12.3 V                    -12V supply:     -12.1 V
> 
> 5V supply:        5.3 V                        Thermometer:     42.2 C
> 
>   
> 
> ____________________________________________________
> 
>   
> 
> MJD      133 03:59:20
> 
> CBT ID: 3839A00612(S)
> 
> Status summary: Operating normally
> 
> Power source: AC
> 
> Log status: 6   entries
> 
>   
> 
> Freq Offset:          0e-15                  Osc. control:     -4.05 %
> 
> RF amplitude 1:    22.8 %               RF amplitude 2:    22.2 %
> 
> Zeeman Freq:      39949 Hz           C-field curr:    12.218 mA
> 
> E-multiplier:      1569 V                  Signal Gain:       14.4 %
> 
>   
> 
> CBT Oven:           6.6 V                     CBT Oven Err:     -0.02 C
> 
> Osc. Oven:         -8.9 V                      Ion Pump:           0.2 uA
> 
> HW Ionizer:         1.0 V                    Mass spec:         10.4 V
> 
> SAW Tuning:         0.0 V                   DRO Tuning:         5.6 V
> 
> 87MHz PLL:          1.2 V                   uP Clock PLL:       2.5 V
> 
> +12V supply:       12.3 V                  -12V supply:      -12.2 V
> 
> +5V  supply:        5.3 V                    Thermometer:       43.4 C
> 
>   
> 
> ____________________________________________________
> 
>   
> 
> MJD      133 13:09:58
> 
> CBT ID: 3839A00612(S)
> 
> Status summary: Operating normally
> 
> Power source: AC
> 
> Log status: 6   entries
> 
>   
> 
> Freq Offset:          0e-15                  Osc. control:     -4.19 %
> 
> RF amplitude 1:    22.9 %               RF amplitude 2:    22.2 %
> 
> Zeeman Freq:      39949 Hz           C-field curr:    12.218 mA
> 
> E-multiplier:      1562 V                  Signal Gain:       14.4 %
> 
>   
> 
> CBT Oven:           6.5 V                      CBT Oven Err:     -0.02 C
> 
> Osc. Oven:         -8.9 V                     Ion Pump:           0.2 uA
> 
> HW Ionizer:         1.0 V                    Mass spec:         10.4 V
> 
> SAW Tuning:         0.0 V                  DRO Tuning:         5.6 V
> 
> 87MHz PLL:          1.2 V                   uP Clock PLL:       2.5 V
> 
> +12V supply:       12.3 V                  -12V supply:      -12.2 V
> 
> +5V  supply:        5.3 V                    Thermometer:       42.8 C
> 
> _______________________________________________
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