Ion Science MVI - Manual (Page 10)

MVI MANUAL Ion Science Ltd
Page 10 of 23
Unrivalled Detection. www.ionscience.com
Description
The Mercury Vapour Indicator (MVI) is a compact, self contained and completely portable instrument which
indicates the amounts of Mercury in micrograms/cubic metre.
The indicating digital display and carrying handle are mounted on the top cover. A female luer connector is
provided at the end of the instrument to accommodate a dust and water trap filter with PTFE extension
probe. In addition, a length of flexible tubing may be connected to the filter for greater convenience when
checking floor areas or gratings.
The internal Nickel Metal Hydride battery is rechargeable using a plug-in battery charger. The operating time
when fully charged is greater than 6 hours. Warm up time is approximately 10 minutes and direct readings
are indicated on an easy to read LCD display.
The audible alarm provides warning of three pre-defined conditions:
Condition Audible Signal
1.
High Mercury vapour concentration greater than 20 µg/m
3
Slow pulse (1/sec)
2. Negative reading from -20 to -25 µg/m
3
and lower Continuous tone
3. Low battery Fast pulse (3/sec)
The audible alarm is inhibited during the first 5 minutes of operation.