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Subject: Dataloggers

Dataloggers

From: Wilma Bouwmeester <wilma>
Date: Thursday, November 9, 2006
Juliette Baxter <jbaxter [at] northamptonshire__gov__uk> writes

>We are looking to install dataloggers to record environmental
>conditions. The two most common makes in the UK seem to be Hanwell
>and Tinytag. Can anyone suggest pros and cons, based on experience,
>for these and other makes?

Hanwell Instruments Ltd produces two main types of monitoring
equipment: systems that give 'real time' data, either through radio
telemetric or hard wired sensors, and  dataloggers (also referred to
as Humbugs/Luxbugs) that collect data and store it in a memory until
the loggers are taken to a PC and downloaded. Data loggers are
available for T/RH (internally and externally), Lux, UV, shock and
tilt monitoring, and can be fitted with remote probes for monitoring
in awkward spaces. The T/RH datalogger can be supplied with a
display on the front, showing current T and RH. Lockable brackets
are available for secure mounting. For very damp/condensing
environments a waterproof datalogger with remote probe is available.

The equipment has high accuracy: 0.2 deg. C at values between -5 and
+50 deg. C temperature, 2% over the entire 0-100% RH range
(non-condensing). The RH/T dataloggers can be calibrated using
saturated salt solutions and calibration settings are adjusted
through the software. Memory download only takes 15 seconds.
Dataloggers are downloaded using the serial (RS232) port on the PC,
and can run for a maximum of 5 years (depending on type and use) on
the internal battery. A USB version in which you can replace the
battery yourself is in development and will be available soon.

Wilma Bouwmeester
Hanwell Distributor Scotland
Wilma Bouwmeester Collection Care
Chambers House
72 High Street
Peebles EH45 8SW
+44 1721 729 427 (phone/fax)


                                  ***
                  Conservation DistList Instance 20:26
                 Distributed: Monday, November 13, 2006
                       Message Id: cdl-20-26-012
                                  ***
Received on Thursday, 9 November, 2006

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