RE: [WISPA] power draw
WOULD A KILL A WATT BE TOO SMALL? FROOGLE IT, ABOUT $20-25. MINE WORKS WELL. Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] power draw
The problem is I don't want to power down everything to check it. I already have a Kill-A-Watt. Travis Microserv CHUCK PROFITO wrote: WOULD A KILL A WATT BE TOO SMALL? FROOGLE IT, ABOUT $20-25. MINE WORKS WELL. Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] power draw
Use an Amp-Clamp, their commonly available at your home center. But, you can't measure on the cord, you'll have to measure an isolated Hot or Neutral (Black or White) wire by itself. Easiest way is at the breaker panel. -Russ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Travis Johnson Sent: Thursday, December 28, 2006 10:16 AM To: isp-wireless@isp-wireless.com; WISPA General List Subject: [WISPA] power draw Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] power draw
Travis, When you do want to power things down, I suggest one or many of these: http://www.baytech.net/products/rpcseries.shtml Not only can you remotely reboot items via a telnet console, but these devices show True RMS current usage. A clamp meter will show you power going one way, but in a larger environment full of AC-DC transformers you can have a significant amount of current going back to the utility. (changing a sine wave to a square always results in a little bit of difference, at least, if my terrible diff-eq skills tell me!) This return current can help to pop breakers as well. When I worked co-location, the power company noticed my return current and offered to place a filter outside my building at my cost $. We quickly got a UPS that filtered this return for us! Take a look, BayTech is a good Louisiana company that needs the business! :) ryan Travis Johnson wrote, On 12/28/2006 8:24 AM: The problem is I don't want to power down everything to check it. I already have a Kill-A-Watt. Travis Microserv CHUCK PROFITO wrote: WOULD A KILL A WATT BE TOO SMALL? FROOGLE IT, ABOUT $20-25. MINE WORKS WELL. Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] power draw
Amprobe Just have an electrician come in and check that breaker. Or, if you are like me, you've used them a lot in a former life and have a couple laying around :-). Marlon (509) 982-2181 Equipment sales (408) 907-6910 (Vonage)Consulting services 42846865 (icq)And I run my own wisp! [EMAIL PROTECTED] www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam - Original Message - From: Travis Johnson [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Thursday, December 28, 2006 8:24 AM Subject: Re: [WISPA] power draw The problem is I don't want to power down everything to check it. I already have a Kill-A-Watt. Travis Microserv CHUCK PROFITO wrote: WOULD A KILL A WATT BE TOO SMALL? FROOGLE IT, ABOUT $20-25. MINE WORKS WELL. Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] power draw
RadioShack has one for $21: Model 22-602 It's a multimeter with clamp-on ammeter probe. I had one from them years ago and looked like a real electrician's tool and worked well. However, this seems to have a clamp-on probe and goes to 30 amps. For under $21, I might get one...handy, you know. In fact, I'll pick up one on the way home and tell you how it works. . . . j o n a t h a n -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marlon K. Schafer (509) 982-2181 Sent: Thursday, December 28, 2006 1:46 PM To: WISPA General List Subject: Re: [WISPA] power draw Amprobe Just have an electrician come in and check that breaker. Or, if you are like me, you've used them a lot in a former life and have a couple laying around :-). Marlon (509) 982-2181 Equipment sales (408) 907-6910 (Vonage)Consulting services 42846865 (icq)And I run my own wisp! [EMAIL PROTECTED] www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam - Original Message - From: Travis Johnson [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Thursday, December 28, 2006 8:24 AM Subject: Re: [WISPA] power draw The problem is I don't want to power down everything to check it. I already have a Kill-A-Watt. Travis Microserv CHUCK PROFITO wrote: WOULD A KILL A WATT BE TOO SMALL? FROOGLE IT, ABOUT $20-25. MINE WORKS WELL. Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] power draw
"and now, the rest of the story"... The power supply feeding these power bars is an APC Symmetra unit. There is no way to get a clamp around only 1 side of the circuit. The other issue is trying to avoid having to take down an entire power bar to measure. :( Travis Microserv Jonathan Schmidt wrote: RadioShack has one for $21: Model 22-602 It's a multimeter with clamp-on ammeter probe. I had one from them years ago and looked like a real electrician's tool and worked well. However, this seems to have a clamp-on probe and goes to 30 amps. For under $21, I might get one...handy, you know. In fact, I'll pick up one on the way home and tell you how it works. . . . j o n a t h a n -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Marlon K. Schafer (509) 982-2181 Sent: Thursday, December 28, 2006 1:46 PM To: WISPA General List Subject: Re: [WISPA] power draw Amprobe Just have an electrician come in and check that breaker. Or, if you are like me, you've used them a lot in a former life and have a couple laying around :-). Marlon (509) 982-2181 Equipment sales (408) 907-6910 (Vonage)Consulting services 42846865 (icq)And I run my own wisp! [EMAIL PROTECTED] www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam - Original Message - From: "Travis Johnson" [EMAIL PROTECTED] To: "WISPA General List" wireless@wispa.org Sent: Thursday, December 28, 2006 8:24 AM Subject: Re: [WISPA] power draw The problem is I don't want to power down everything to check it. I already have a Kill-A-Watt. Travis Microserv CHUCK PROFITO wrote: WOULD A "KILL A WATT" BE TOO SMALL? FROOGLE IT, ABOUT $20-25. MINE WORKS WELL. Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] power draw
I guess you could CAREFULLY strip off some of the outer insulation so that you could get to the hot wire with an amprobe. Or, wait till it trips again, then insert a short cord that's got all of the phases out where you can get to them already. Marlon (509) 982-2181 Equipment sales (408) 907-6910 (Vonage)Consulting services 42846865 (icq)And I run my own wisp! [EMAIL PROTECTED] www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam - Original Message - From: Travis Johnson To: WISPA General List Sent: Thursday, December 28, 2006 12:29 PM Subject: Re: [WISPA] power draw and now, the rest of the story... The power supply feeding these power bars is an APC Symmetra unit. There is no way to get a clamp around only 1 side of the circuit. The other issue is trying to avoid having to take down an entire power bar to measure. :( Travis Microserv Jonathan Schmidt wrote: RadioShack has one for $21: Model 22-602 It's a multimeter with clamp-on ammeter probe. I had one from them years ago and looked like a real electrician's tool and worked well. However, this seems to have a clamp-on probe and goes to 30 amps. For under $21, I might get one...handy, you know. In fact, I'll pick up one on the way home and tell you how it works. . . . j o n a t h a n -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marlon K. Schafer (509) 982-2181 Sent: Thursday, December 28, 2006 1:46 PM To: WISPA General List Subject: Re: [WISPA] power draw Amprobe Just have an electrician come in and check that breaker. Or, if you are like me, you've used them a lot in a former life and have a couple laying around :-). Marlon (509) 982-2181 Equipment sales (408) 907-6910 (Vonage)Consulting services 42846865 (icq)And I run my own wisp! [EMAIL PROTECTED] www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam - Original Message - From: Travis Johnson [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Thursday, December 28, 2006 8:24 AM Subject: Re: [WISPA] power draw The problem is I don't want to power down everything to check it. I already have a Kill-A-Watt. Travis Microserv CHUCK PROFITO wrote: WOULD A KILL A WATT BE TOO SMALL? FROOGLE IT, ABOUT $20-25. MINE WORKS WELL. Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] power draw
Jonathan Schmidt wrote: RadioShack has one for $21: Model 22-602 It's a multimeter with clamp-on ammeter probe. I had one from them years ago and looked like a real electrician's tool and worked well. However, this seems to have a clamp-on probe and goes to 30 amps. For under $21, I might get one...handy, you know. In fact, I'll pick up one on the way home and tell you how it works. . . . j o n a t h a n $21.00 Can't get much cheaper than that. It's amazing how things have changed. I think I paid better than $300.0o 25 years ago and it wasn't even digital! George -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] power draw
Does that APC unit have a monitoring (ethernet or serial) port? You should be able to pull the amperage used from it that way. Either through the APC software or through snmp. The proper index number is listed in its MiB http://rockhounding.net/projects/ups/pdf/apc-mib.pdf I don't know if it can break it down to each outlet though. So it may need to be the only thing on the UPS in order to use that data. Ryan On Thu, 2006-12-28 at 12:44 -0800, Marlon K. Schafer (509) 982-2181 wrote: I guess you could CAREFULLY strip off some of the outer insulation so that you could get to the hot wire with an amprobe. Or, wait till it trips again, then insert a short cord that's got all of the phases out where you can get to them already. Marlon (509) 982-2181 Equipment sales (408) 907-6910 (Vonage)Consulting services 42846865 (icq)And I run my own wisp! [EMAIL PROTECTED] www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam - Original Message - From: Travis Johnson To: WISPA General List Sent: Thursday, December 28, 2006 12:29 PM Subject: Re: [WISPA] power draw and now, the rest of the story... The power supply feeding these power bars is an APC Symmetra unit. There is no way to get a clamp around only 1 side of the circuit. The other issue is trying to avoid having to take down an entire power bar to measure. :( Travis Microserv Jonathan Schmidt wrote: RadioShack has one for $21: Model 22-602 It's a multimeter with clamp-on ammeter probe. I had one from them years ago and looked like a real electrician's tool and worked well. However, this seems to have a clamp-on probe and goes to 30 amps. For under $21, I might get one...handy, you know. In fact, I'll pick up one on the way home and tell you how it works. . . . j o n a t h a n -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marlon K. Schafer (509) 982-2181 Sent: Thursday, December 28, 2006 1:46 PM To: WISPA General List Subject: Re: [WISPA] power draw Amprobe Just have an electrician come in and check that breaker. Or, if you are like me, you've used them a lot in a former life and have a couple laying around :-). Marlon (509) 982-2181 Equipment sales (408) 907-6910 (Vonage)Consulting services 42846865 (icq)And I run my own wisp! [EMAIL PROTECTED] www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam - Original Message - From: Travis Johnson [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Thursday, December 28, 2006 8:24 AM Subject: Re: [WISPA] power draw The problem is I don't want to power down everything to check it. I already have a Kill-A-Watt. Travis Microserv CHUCK PROFITO wrote: WOULD A KILL A WATT BE TOO SMALL? FROOGLE IT, ABOUT $20-25. MINE WORKS WELL. Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] power draw
Put a smart card in the symmetra, unless you already have one in it. The web interface will give you an idea of the load on the port. Keep in mind power-factor vs real-power readings. -Russ _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Travis Johnson Sent: Thursday, December 28, 2006 3:30 PM To: WISPA General List Subject: Re: [WISPA] power draw and now, the rest of the story... The power supply feeding these power bars is an APC Symmetra unit. There is no way to get a clamp around only 1 side of the circuit. The other issue is trying to avoid having to take down an entire power bar to measure. :( Travis Microserv Jonathan Schmidt wrote: RadioShack has one for $21: Model 22-602 It's a multimeter with clamp-on ammeter probe. I had one from them years ago and looked like a real electrician's tool and worked well. However, this seems to have a clamp-on probe and goes to 30 amps. For under $21, I might get one...handy, you know. In fact, I'll pick up one on the way home and tell you how it works. . . . j o n a t h a n -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marlon K. Schafer (509) 982-2181 Sent: Thursday, December 28, 2006 1:46 PM To: WISPA General List Subject: Re: [WISPA] power draw Amprobe Just have an electrician come in and check that breaker. Or, if you are like me, you've used them a lot in a former life and have a couple laying around :-). Marlon (509) 982-2181 Equipment sales (408) 907-6910 (Vonage)Consulting services 42846865 (icq)And I run my own wisp! [EMAIL PROTECTED] www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam - Original Message - From: Travis Johnson mailto:[EMAIL PROTECTED] [EMAIL PROTECTED] To: WISPA General List mailto:wireless@wispa.org wireless@wispa.org Sent: Thursday, December 28, 2006 8:24 AM Subject: Re: [WISPA] power draw The problem is I don't want to power down everything to check it. I already have a Kill-A-Watt. Travis Microserv CHUCK PROFITO wrote: WOULD A KILL A WATT BE TOO SMALL? FROOGLE IT, ABOUT $20-25. MINE WORKS WELL. Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] power draw
Already have one... the problem is this is a 12kVa unit, so we have 8 power bars coming off 8 different ports on the back no way to tell which ports are overloaded and which ones aren't. :( Travis Microserv Russ Kreigh wrote: Put a smart card in the symmetra, unless you already have one in it. The web interface will give you an idea of the load on the port. Keep in mind power-factor vs real-power readings. -Russ _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Travis Johnson Sent: Thursday, December 28, 2006 3:30 PM To: WISPA General List Subject: Re: [WISPA] power draw and now, the rest of the story... The power supply feeding these power bars is an APC Symmetra unit. There is no way to get a clamp around only 1 side of the circuit. The other issue is trying to avoid having to take down an entire power bar to measure. :( Travis Microserv Jonathan Schmidt wrote: RadioShack has one for $21: Model 22-602 It's a multimeter with clamp-on ammeter probe. I had one from them years ago and looked like a real electrician's tool and worked well. However, this seems to have a clamp-on probe and goes to 30 amps. For under $21, I might get one...handy, you know. In fact, I'll pick up one on the way home and tell you how it works. . . . j o n a t h a n -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marlon K. Schafer (509) 982-2181 Sent: Thursday, December 28, 2006 1:46 PM To: WISPA General List Subject: Re: [WISPA] power draw Amprobe Just have an electrician come in and check that breaker. Or, if you are like me, you've used them a lot in a former life and have a couple laying around :-). Marlon (509) 982-2181 Equipment sales (408) 907-6910 (Vonage)Consulting services 42846865 (icq)And I run my own wisp! [EMAIL PROTECTED] www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam - Original Message - From: Travis Johnson mailto:[EMAIL PROTECTED] [EMAIL PROTECTED] To: WISPA General List mailto:wireless@wispa.org wireless@wispa.org Sent: Thursday, December 28, 2006 8:24 AM Subject: Re: [WISPA] power draw The problem is I don't want to power down everything to check it. I already have a Kill-A-Watt. Travis Microserv CHUCK PROFITO wrote: WOULD A KILL A WATT BE TOO SMALL? FROOGLE IT, ABOUT $20-25. MINE WORKS WELL. Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] power draw
There are a couple issues here. First, the most probable cuse probably is a failing breaker, which if were the case would require power shut down. Thats the purpose of a UPS, is that power can be disconnected without equipment on UPS going down. Second, a UPS's draw can change based on whether the UPs's charging circuit is on or off. Many people use to weak of a breaker, because they count the amps drawn, and not the amps drawn, plus the additional AMPs that the charging circuit would use if it activated. For example, a 40 amp breaker is required for my Triplight Power inverter spec'd at delivering 20 amps to equipment. The charging unit would allow it to draw as much as 12 more amps, putting it over 30amp breaker. (Or somewhere near those values, doing this for memory) Third, the power draw can vary based on the server load. It draws more at the time they power up. They draw more as the Hard Drives do more scanning, etc. Fourth, The question is, is it the gear on the UPS drawing excessive current, or is it the APC drawing excessive current. Someone posted a link on this list not to long ago that was a plug-in amp meter. You plugged it into another outlet on the same circuit, and it gave you the current. I;d guess you'd want to constantly monitor the amperage draw, to tell if anything ever resulted in greater amerage draw at specific times. Doesn't the APC Symetra have the ability to record that data in its software application logging? Tom DeReggi RapidDSL Wireless, Inc IntAirNet- Fixed Wireless Broadband - Original Message - From: Travis Johnson To: WISPA General List Sent: Thursday, December 28, 2006 3:29 PM Subject: Re: [WISPA] power draw and now, the rest of the story... The power supply feeding these power bars is an APC Symmetra unit. There is no way to get a clamp around only 1 side of the circuit. The other issue is trying to avoid having to take down an entire power bar to measure. :( Travis Microserv Jonathan Schmidt wrote: RadioShack has one for $21: Model 22-602 It's a multimeter with clamp-on ammeter probe. I had one from them years ago and looked like a real electrician's tool and worked well. However, this seems to have a clamp-on probe and goes to 30 amps. For under $21, I might get one...handy, you know. In fact, I'll pick up one on the way home and tell you how it works. . . . j o n a t h a n -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marlon K. Schafer (509) 982-2181 Sent: Thursday, December 28, 2006 1:46 PM To: WISPA General List Subject: Re: [WISPA] power draw Amprobe Just have an electrician come in and check that breaker. Or, if you are like me, you've used them a lot in a former life and have a couple laying around :-). Marlon (509) 982-2181 Equipment sales (408) 907-6910 (Vonage)Consulting services 42846865 (icq)And I run my own wisp! [EMAIL PROTECTED] www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam - Original Message - From: Travis Johnson [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Thursday, December 28, 2006 8:24 AM Subject: Re: [WISPA] power draw The problem is I don't want to power down everything to check it. I already have a Kill-A-Watt. Travis Microserv CHUCK PROFITO wrote: WOULD A KILL A WATT BE TOO SMALL? FROOGLE IT, ABOUT $20-25. MINE WORKS WELL. Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] power draw
OOPs, missed that detail. That complicates matters a bit :-( Tom DeReggi RapidDSL Wireless, Inc IntAirNet- Fixed Wireless Broadband - Original Message - From: Travis Johnson [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Thursday, December 28, 2006 4:44 PM Subject: Re: [WISPA] power draw Already have one... the problem is this is a 12kVa unit, so we have 8 power bars coming off 8 different ports on the back no way to tell which ports are overloaded and which ones aren't. :( Travis Microserv Russ Kreigh wrote: Put a smart card in the symmetra, unless you already have one in it. The web interface will give you an idea of the load on the port. Keep in mind power-factor vs real-power readings. -Russ _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Travis Johnson Sent: Thursday, December 28, 2006 3:30 PM To: WISPA General List Subject: Re: [WISPA] power draw and now, the rest of the story... The power supply feeding these power bars is an APC Symmetra unit. There is no way to get a clamp around only 1 side of the circuit. The other issue is trying to avoid having to take down an entire power bar to measure. :( Travis Microserv Jonathan Schmidt wrote: RadioShack has one for $21: Model 22-602 It's a multimeter with clamp-on ammeter probe. I had one from them years ago and looked like a real electrician's tool and worked well. However, this seems to have a clamp-on probe and goes to 30 amps. For under $21, I might get one...handy, you know. In fact, I'll pick up one on the way home and tell you how it works. . . . j o n a t h a n -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marlon K. Schafer (509) 982-2181 Sent: Thursday, December 28, 2006 1:46 PM To: WISPA General List Subject: Re: [WISPA] power draw Amprobe Just have an electrician come in and check that breaker. Or, if you are like me, you've used them a lot in a former life and have a couple laying around :-). Marlon (509) 982-2181 Equipment sales (408) 907-6910 (Vonage)Consulting services 42846865 (icq)And I run my own wisp! [EMAIL PROTECTED] www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam - Original Message - From: Travis Johnson mailto:[EMAIL PROTECTED] [EMAIL PROTECTED] To: WISPA General List mailto:wireless@wispa.org wireless@wispa.org Sent: Thursday, December 28, 2006 8:24 AM Subject: Re: [WISPA] power draw The problem is I don't want to power down everything to check it. I already have a Kill-A-Watt. Travis Microserv CHUCK PROFITO wrote: WOULD A KILL A WATT BE TOO SMALL? FROOGLE IT, ABOUT $20-25. MINE WORKS WELL. Hi, We have a large power bar mounted on a rack that powers several servers and switches. It keeps popping the breaker that feeds the bar. Is there any device (ammeter?) that I can measure the amperage draw on that cord while everything is running? Thanks, Travis Microserv -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
