5-7
1010PVNFM-3A
Section 5
reactivate an inactive Site Setup is to recall it back into to Active Memory. However, be aware
that this action over-writes ALL the data residing in the Active Memory area.
The Datalogger logs data collected at preset intervals during operation. It uses the system
RAM resources independently of Active Memory and Site Storage Memory. Therefore, data
movement between Active Memory and Site Storage memory will not affect it directly. How-
ever, all stored data shares a common RAM pool. The meter allocates the actual amount of
bytes available for each storage function dependent on the demands of each facility. There-
fore, an unusually large Datalogger file may reduce the amount of site storage memory avail-
able. Storing several inactive site setups may reduce the available logging capacity.
If you receive a [Memory Full!] message when you try to save a Site Setup, then you will
have to delete an obsolete Site Setup or clear the Datalogger Memory to make room. Another
Datalogger memory consideration applies to dual-channel systems, when both measurement
channels are actively logging data. Dual-channel meters store logged data from
BOTH chan-
nels in a common file so you must include Site ID for each line to identify the applicable
measurement channel.
The 1010 also offers a Memory Map and Defragmenting command in the Meter Facilities
area of the menu as an aid in visualizing and maximizing the efficient utilization of your meter’s
memory resources.
5.6 REFERENCE TABLES
The following tables provide reference data that may be required during the Site Setup.
SONIC VELOCITY (in meters/sec) FOR COMMON LIQUIDS @ 68°F
Liquids/Oils Vs(m/s) Liquids/Oils Vs(m/s)
Acetate, Butyl (n) 1270 Ethanol 1180
Acetate, Ethyl 1180 Ethylene Glycol 1620
Acetate, Methyl 1150 Gasoline 1250
Acetate. Propyl 1180 Glycerine 1920
Alcohol 1440 Linalool 1400
Alcohol, Butyl (n) 1270 Linseed Oil 1770
Alcohol, Ethyl 1180 Methylethyl Ketone 1210
Alcohol, Methyl 1120 Motor Oil (SAE 20/30) 1487
Alcohol, Propyl (i) 1170 Paraffin Oil 1420
Alcohol, Propyl (n) 1220 Pentane 1010
Benzene 1330 Petroleum 1290
Benzol, Ethyl 1340 Trichlorethylene 1050
Butyrate, Ethyl 1170 Transformer Oil 1390
Carbon Tetrachloride 938 Turpentine 1280
Diethyl Ketone 1310
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