4. I/O Mode: Digital Out. Two different functions are available in this mode:
4.1. Function: Trigger Pulse. When this function is selected, the terminal [1] is set as output, which
enables one to trigger another instrument (one instrument or more with trigger inputs connected
together in parallel), output trigger impulse meets specification given below:
a) trigger impulse is generated before every measurement,
b) output voltage range from 0 V or 3 V,
c) triggering slope: rising or falling,
d) output impedance: 51 Ω,
e) duration of the impulse: ca. 30 μsec.
4.2. Function: Alarm Pulse. When this function is selected, the terminal [1] is set as an output,
which changes its output level, when current result of measurement exceeds user-
programmable threshold level. In this case the terminal [1] output operates as an output of
analogue comparator with user-programmable threshold. This feature enables one to control an
external device as alarm-indicator or similar:
a) electrical specification of this output are as follows: 0 V to 3 V voltage range, 51 Ω output
impedance,
b) output produces a voltage level (not impulse),
c) Active Level setting may be selected by the user in menu as Low or High. When High is
selected, the output alternates from 0 V to 3 V till measurement result is greater than
threshold value,
d) Source setting selects source of measurement result to be compared with the threshold
value. One of three results sources may be selected Leq(1), Peak(1), Max(1), Spl(1),
e) Source Type setting selects Current or Periodic, according to last result became of
settled Integr. Period (path: <Menu> / Measurement / General Settings),
f) Level enables setting-up the threshold value.
Real Time Clock
Built-in real time. Accuracy better than 1 minute/month. Additional built-in CR1220 battery provides power to
the RTC for a minimum of 2 years (typically 10 years).
Wireless Bluetooth
®
2.1+EDR Module (Enhanced Data Rates)
This instrument supports wireless connection via Fully Qualified Bluetooth system v2.1 + EDR Module, CE
and FCC. This connectivity is compatible with mobile and PC devices that support Bluetooth
®
2.1.
The instrument contains a wireless transmission module, WT12 from Bluegiga technologies. Copies of the
modules regional approvals certificates may be obtained from Svantek or Bluegiga.
• Bluetooth version: 2.0
• Operating frequency range: 2.402 – 2.480 GHz
• Transmit power (max): 3 dBm
• Sensitivity: -86 dBm
• Channels: 40
• Modulation: GFSK
• Internal antenna gain: 0.5 dBi
• Range: typically >30m line-of-sight and depending on local RF conditions.
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