WP34S: Reset when printing statistical registers?
07-04-2014, 11:12 AM (This post was last modified: 07-04-2014 11:22 AM by pito.)
Post: #30
 pito Member Posts: 127 Joined: Jun 2014
RE: WP34S: Reset when printing statistical registers?
(07-04-2014 07:49 AM)walter b Wrote:  Thank you for the calculations. We shouldn't forget that the WP 34S switches off for voltages <2.1V.
d:-)

I've taken a fresh CR2032 (Vinnic?) from my stock:

Code:
1. Voltage without a load (actually 10Mohm, I = ~332nA) = 3.32V 2. Voltage with 200ohm load = 2.89V 3. Internal resistance of the battery is  Rint = dV@Rint/dI@Rint = (3.32V - 2.89V)/(2.89V/200ohm - 332nA) = 29.75 ohm

So my above estimation was rather optimistic. Both batteries in parallel will have ~15ohm Rint when fresh. The load of ~15mA will create a ~0.22V drop with two fresh batteries in parallel.

When measuring with BATT not loaded with the "nominal load", you will measure ~3.3V, what is of course a "Hausnummer"

When 50-60% capacity consumed, a 10mA load (a calculation for example) will drop BATT below 2V (but the BATT will show you 3V).
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 Messages In This Thread WP34S: Reset when printing statistical registers? - rkf - 07-03-2014, 04:41 AM RE: WP34S: Reset when printing statistical registers? - Paul Dale - 07-03-2014, 05:19 AM RE: WP34S: Reset when printing statistical registers? - pito - 07-03-2014, 09:24 AM RE: WP34S: Reset when printing statistical registers? - walter b - 07-03-2014, 09:29 AM RE: WP34S: Reset when printing statistical registers? - pito - 07-03-2014, 10:15 PM RE: WP34S: Reset when printing statistical registers? - walter b - 07-04-2014, 07:49 AM RE: WP34S: Reset when printing statistical registers? - pito - 07-04-2014 11:12 AM RE: WP34S: Reset when printing statistical registers? - Marcus von Cube - 07-04-2014, 06:51 PM RE: WP34S: Reset when printing statistical registers? - pito - 07-04-2014, 07:29 PM RE: WP34S: Reset when printing statistical registers? - Marcus von Cube - 07-04-2014, 07:54 PM RE: WP34S: Reset when printing statistical registers? - pito - 07-04-2014, 08:34 PM RE: WP34S: Reset when printing statistical registers? - rkf - 07-03-2014, 06:45 AM RE: WP34S: Reset when printing statistical registers? - rkf - 07-03-2014, 08:08 AM RE: WP34S: Reset when printing statistical registers? - walter b - 07-03-2014, 09:26 AM RE: WP34S: Reset when printing statistical registers? - Paul Dale - 07-03-2014, 08:51 AM RE: WP34S: Reset when printing statistical registers? - rkf - 07-03-2014, 09:29 AM RE: WP34S: Reset when printing statistical registers? - walter b - 07-03-2014, 09:31 AM RE: WP34S: Reset when printing statistical registers? - Paul Dale - 07-03-2014, 09:39 AM RE: WP34S: Reset when printing statistical registers? - walter b - 07-03-2014, 10:01 AM RE: WP34S: Reset when printing statistical registers? - Dieter - 07-03-2014, 10:13 AM RE: WP34S: Reset when printing statistical registers? - Paul Dale - 07-03-2014, 10:30 AM RE: WP34S: Reset when printing statistical registers? - rkf - 07-03-2014, 10:39 AM RE: WP34S: Reset when printing statistical registers? - walter b - 07-03-2014, 11:08 AM RE: WP34S: Reset when printing statistical registers? - Marcus von Cube - 07-03-2014, 11:56 AM RE: WP34S: Reset when printing statistical registers? - walter b - 07-03-2014, 02:45 PM RE: WP34S: Reset when printing statistical registers? - Paul Dale - 07-03-2014, 09:53 PM RE: WP34S: Reset when printing statistical registers? - rkf - 07-04-2014, 04:37 AM RE: WP34S: Reset when printing statistical registers? - walter b - 07-04-2014, 05:15 AM RE: WP34S: Reset when printing statistical registers? - jebem - 07-03-2014, 10:13 PM RE: WP34S: Reset when printing statistical registers? - rkf - 07-04-2014, 05:31 AM RE: WP34S: Reset when printing statistical registers? - jebem - 07-04-2014, 08:03 AM RE: WP34S: Reset when printing statistical registers? - ElectroDuende - 02-13-2015, 01:00 PM RE: WP34S: Reset when printing statistical registers? - Paul Dale - 07-03-2014, 09:38 AM RE: WP34S: Reset when printing statistical registers? - rkf - 07-03-2014, 09:40 AM RE: WP34S: Reset when printing statistical registers? - Paul Dale - 07-03-2014, 10:26 AM RE: WP34S: Reset when printing statistical registers? - matthiaspaul - 02-13-2015, 04:06 AM

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