HT instruments HT154 - Manual (Page 4)

HT154
EN - 3
1.3. AFTER USE
• Once the measurements are completed, switch OFF the meter.
• If the instruments is not be used for a long period, remove the battery.
2. GENERAL DESCRIPTION
The meter can perform the herewith functions:
¾ Sound Pressure Level (SPL) measurements with 30dB to 130dB range.
¾ A or C frequency weighted measurements.
¾ FAST or SLOW integrations measurements.
¾ MAX and MIN value of SPL.
¾ AC or DC analogical outputs used with multimeters or external data loggers.
¾ Manual range selection.
On frontal panel of meter there are four function keys for selection of above specifications
(see chapter 4.2). Measurement value is shown on the wide LCD display with relative
measures unit and symbols of selected functions.
On side panel there are the terminals for AC and DC analogical outputs with 3.5mm coax
plug and the input for external 9VDC adapter for use of meter without internal battery.
On back panel there is the screw for mounting external tripod during performing measures.