NPI AUDIS-01D/2-16 Bedienungsanleitung
OPERATING INSTRUCTIONS AND
SYSTEM DESCRIPTION FOR THE
AUDIS-01D/2-16
AUDIO MONITOR
With THRESHOLD Control
VERSION 1.7
npi 2021
npi electronic GmbH, Bauhofring 16, D-71732 Tamm, Germany
Phone +49 (0)7141-9730230; Fax: +49 (0)7141-9730240
[email protected]; http://www.npielectronic.com
AUDIS-01D/2-16 User Manual
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Table of Contents
1. Safety Regulations .............................................................................................................. 3
2. AUDIS-01D/2-16 ................................................................................................................ 4
2.1. Description of the Front Panel and Operation ............................................................. 4
2.2. Description of the Rear Panel ...................................................................................... 5
3. Technical Data .................................................................................................................... 6
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1. Safety Regulations
VERY IMPORTANT: Instruments and components supplied by npi electronic are NOT
intended for clinical use or medical purposes (e.g. for diagnosis or treatment of humans),
or for any other life-supporting system. npi electronic disclaims any warranties for such
purpose. Equipment supplied by npi electronic must be operated only by selected, trained
and adequately instructed personnel. For details please consult the GENERAL TERMS
OF DELIVERY AND CONDITIONS OF BUSINESS of npi electronic, D-71732 Tamm,
Germany.
1) GENERAL: This system is designed for use in scientific laboratories and must be operated
by trained staff only. General safety regulations for operating electrical devices should be
followed.
2) AC MAINS CONNECTION: While working with the npi systems, always adhere to the
appropriate safety measures for handling electronic devices. Before using any device
please read manuals and instructions carefully.
The device is to be operated only at 115/230 Volt 60/50 Hz AC. Please check for
appropriate line voltage before connecting any system to mains.
Always use a three-wire line cord and a mains power-plug with a protection contact
connected to ground (protective earth).
Before opening the cabinet, unplug the instrument.
Unplug the instrument when replacing the fuse or changing line voltage. Replace fuse only
with an appropriate specified type.
3) STATIC ELECTRICITY: Electronic equipment is sensitive to static discharges. Some
devices such as sensor inputs are equipped with very sensitive FET amplifiers, which can
be damaged by electrostatic charge and must therefore be handled with care. Electrostatic
discharge can be avoided by touching a grounded metal surface when changing or
adjusting sensors. Always turn power off when adding or removing modules,
connecting or disconnecting sensors, headstages or other components from the
instrument or 19” cabinet.
4) TEMPERATURE DRIFT / WARM-UP TIME: All analog electronic systems are sensitive
to temperature changes. Therefore, all electronic instruments containing analog circuits
should be used only in a warmed-up condition (i.e. after internal temperature has reached
steady-state values). In most cases a warm-up period of 20-30 minutes is sufficient.
5) HANDLING: Please protect the device from moisture, heat, radiation and corrosive
chemicals.
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2. AUDIS-01D/2-16
The AUDIS-01D/2-16 is a digital acoustic monitor in a small desktop cabinet with a built-in
loudspeaker and two audio modes. In PITCH mode the voltage input signal is converted to a
tone, and in NOISE mode the signal is highpass filtered to monitor the noise. A THRESHOLD
function (in NOISE mode) can be used for masking the noise of the baseline.
2.1. Description of the Front Panel and Operation
Figure 1: AUDIS-01D/2-16 front panel view
In the following description of the front panel elements each element has a number that is
related to that in Figure 1. The number is followed by the name (in uppercase letters) written
on the front panel and the type of the element (in lowercase letters). Then, a short description
of the element is given.
(1) POWER ON LED
This LED indicates that an AC power supply is connected and the POWER ON switch is set to
ON position.
(2) POWER ON switch
Switch to power up the system.
(3) CHANNEL 1 INPUT connector
BNC connector for connecting the input signal for channel 1.
(4) CHANNEL 3…16 INPUT connector
SUB-D connector for additional signal inputs. The pinout is depicted below:
An optional connection cable is available on request.
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(5) CHANNEL 2 INPUT connector
BNC connector for connecting the input signal for channel 2.
(6) CHANNEL select switch
16-position switch for selecting the input channel to be monitored.
(7) PHONES connector
Stereo jack connector for PHONES or an external amplifier (e.g., active speakers).
(8) THRESHOLD potentiometer
Potentiometer for setting the THRESHOLD in % of the value set by INPUT MODE switch #7
(0.5 V, 1 V, 2 V). For example, if the INPUT MODE switch #7 is set to 2 V and the
THRESHOLD potentiometer is set to 50%, the resulting THRESHOLD for monitoring the
OUTPUT signal will be at 1 V, i.e. only signals greater than 1 V will be converted into a sound
(NOISE).
(9) VOLUME potentiometer
Potentiometer for setting the VOLUME of the internal speaker or HEAD PHONES connected
to PHONES #4. Turning clockwise will turn up the sound.
(10) INPUT MODE switch
Switch for selecting the INPUT MODE.
PITCH: The voltage of the INPUT signal is converted into a tone with a frequency
equivalent to the amplitude of the INPUT voltage.
OFF: The audio monitor is switched OFF.
NOISE: The voltage of the INPUT signal is high pass filtered, amplified and
transduced to a sound.
2 V, 1 V, 0.5 V: The audio monitor works in NOISE MODE with THRESHOLD function.
100% THRESHOLD is set to the selected value (2 V, 1 V or 0.5 V) (see also
#5).
2.2. Description of the Rear Panel
The only rear panel element is the connector for the external power supply with the following
specifications:
AC power supply (18 V AC, 1 A min)
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3. Technical Data
AUDIO MODE: PITCH / NOISE / THRESHOLD, selected by rotary switch with
OFF position
THRESHOLD: RANGE and FINE control, range: 0.5 V, 1 V or 2 V max.
INPUT: BNC and SUB-D connectors: impedance 100 k, high-pass
filtered in NOISE mode
Input Voltage RANGE: 10 V
VOLUME Control: volume of the speaker, one-turn potentiometer
HEAD PHONES: 3.5 mm stereo jack audio connector, 1 k, 1 V max.
Size: front panel 12 HP (60.6 mm) x 3U (128,5 mm), 7” (175 mm)
deep
Power Requirements: 18 V AC, 1 A min
(external AC Power Supply included)
Dimensions: (W x D x H) 225 x 210 x 85 mm3
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