Minimate Pro Operator Manual 7–7
7.6.5. Using the Sound Level Microphone
1. Sensor Check is only available in Compliance Mode. Press Sensor Check on the
Minimate Pro to ensure that the sensor is properly attached. A successful Sensor Check
will return results similar to this;
MicA Pass Freq= N/A Amp=563 mv
NOTE: The name of „MicA‟ is editable in the Blastware setup.
2. Press Enter to continue.
3. Press Start Monitor on the unit.
4. If the unit triggers immediately you may need to increase the Trigger Level. Review the
peak of the previous event, and set the Trigger Level at least 3 dB above that value.
5. Press Start Monitor.
6. If the unit triggers immediately repeat the previous step otherwise clap your hands in
front of the microphone to ensure the unit will trigger.
7. The system will now monitor and record data whenever the Trigger Level has been
exceeded.
7.6.6. View Compliance Events
1. Once the monitor has recorded at least one event it will display the Lmax level of that event
on the display.
2. To view other recorded data on the unit press Down Arrow from the main display and
highlight the desired event.
3. Press Right Arrow three times to display the results of the Pressure Channel. The sound
data results that will be displayed are the Lmax, Lmin, L90, L10 and Leq values for the entire
recording time.
NOTE: Refer to the Blastware Operator Manual for information about how to view, analyze
and/or export the recorded data for Compliance and Advanced mode software.
7.6.7. Technical Information for IEC 61672-1 Compliance
1. The Sound Level Microphone is a Group Z, Class 1 instrument.
a. Group Z refers to an instrument consisting of two separate components that must be
connected.
2. Dependent on which Blastware software module that is used, Compliance or Advanced,
different data results may be achieved or settings applied, as shown below:
Specifications Compliance Mode Advanced Mode (Optional)
Weighting A-Weight and C-Weight Unfiltered
Frequency Range Up to 20 kHz Up to 20 kHz
Response Fast 125 ms, Slow 1 s N/A
Sensitivity N/A 0.0038 V/Pa (Normal), 0.12 V/Pa
(Sensitive)
Resolution 0.05 dB (display limit 0.1dB) 0.03 Pa (Normal), 0.89 mPa
(Sensitive)
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