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Extech RH 520 Temperature/Humidity Paperless Recorders
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DO-23029-81
Temperature/Humidity Paperless Recorder
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 | Paperless recorder measures temperature, humidity plus calculates dew point
| | Internal memory records up to 49,000 data points
| | Unit features audible and visual alarms with hi/low setpoints | Use this digital recorder to monitor and record temperature and humidity data in laboratories, storage and clean rooms, freezers, and other critical areas. Detachable probe extends up to one meter for measurements in closed environments and large dual graphical LCD display provides adjustable vertical and horizontal TAC resolution. Time, date and the percentage of memory remaining is displayed and audible and visual alarms generate warnings when conditions are outside required limits. Unit is desk or wall mountable and internal data records can be transferred to a PC via RS-232 serial port for further analysis.
What’s included: built-in stand, detachable probe with 3-ft cable, RS232 cable, 110 VAC adaptor, and 3 AA batteries. |
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| Specifications | | RH range | 10 to 95.0% | | RH accuracy | ±3.0% RH | | Temp range | -20.0 to 140.0°F
(-28 to 60°C) | | Temp resolution | 0.1°F
(0.1°C) | | Temp accuracy | 1.8±F
(1°C) | | Recording interval | 0.1 to 199.9 (selectable) | | Dimensions | 7-3/4"W x 5"H x 1"D | | Display | Backlit graphical LCD | | Memory | 49,000 data points | | Power | Three AA batteries
(optional AC adapter) | | Model | RH520A | | Manufacturer number | RH520A | | Brand | Extech |
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Q: The NIST certification, is that 17025? Asked on 6/21/2010 by Craig from TN. Know the answer? Answer this question 1 answer A: ISO 17025 calibration is available. Please contact our technical application specialists for additional assistance (contact information can be found on the product web page). Answered on 6/17/2010 by David from Tech Support
Q: Does the EW-23029-81 Temperature/Humidity Paperless Recorder initially come with a NIST calibration document? Asked on 8/26/2009 by Wayne from Orange, California Know the answer? Answer this question 2 answers A: The 23029-81 does not come with an NIST calibration document initially. This must be ordered with the instrument at the time of order. Please include the following part number (17030-20) when ordering the recorder if you should want this to be NIST calibrated. Answered on 8/26/2009 by Jaime from Technical Support A: I have purchased one of these in the past. They are very nice units. If you want a NIST traceable certificate of calibraion with the purchase you can get it but it cost extra and extends the lead time a little bit. When ordering you will have to include an additional line item on you purchase order stating you want the NIST Certificate and I believe they have an order number for that as well which you can find on the website or by calling them. Cole-parmer is excellent with answering any questions on the phone. You may have to push a couple of numbers on your phone to get the department you want but everyone I have ever talked to is very knowledgeable about their products. I have several coleparmer products. Answered on 12/2/2009 by Mr Calibration from Grand Rapids, MI.
Q: Is it required to order software separate from the unit to set it up or is it included with the unit? Asked on 8/26/2009 by Wayne from Orange, California Know the answer? Answer this question 1 answer A: This unit comes with an RS-232 cable and a CD that contains the instruction manual ans software needed to connect to a PC. Answered on 8/27/2009 by Jen from Technical Support
Q: Question:
It would seem that this item would already come with MFG Calibration Cert in Temp and RH at the time of purchase. Is that correct? Asked on 7/22/2009 by tom Kaczorowski Know the answer? Answer this question 1 answer A: This unit comes with a factory certificate that is not signed or serialized, and only matches the specifications listed in the instruction manual. For a NIST certificate with this unit please order (additionally to the unit) 17100-00 at the time you place your order. Answered on 7/22/2009 by Jen from Technical Support
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Works great, easy ,user friendly By cool man luke from Lewisburg Ohio on 8/6/2010 Describe Yourself: Professional Bottom Line: Yes, I would recommend this to a friend
Step up from paper chart recorders By Calibration Lab from Minneapolis, MN on 2/25/2010 Pros: Easy To Use, Works Properly Cons: Odd Design Decisions Describe Yourself: Student Bottom Line: Yes, I would recommend this to a friend
It is good for what it is By DJ Drab from Pasadena, TX on 1/20/2010 Pros: Accurate, Works Properly Describe Yourself: Lab Assistant Bottom Line: Yes, I would recommend this to a friend
Love it, sure beats changing paper graph By Mr. Calibration from Grand Rapids, MI on 8/11/2009 Pros: Accurate, Convenient, Easy To Use Describe Yourself: Academic/Professional Researcher Bottom Line: Yes, I would recommend this to a friend
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Calibrations
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Accessories
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Custom Ordering Solutions
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