
Hand-held Analyzer Types 2250 and 2270 – User Manual
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Specifications – Hand-held Analyzer Type 2250/2270 Platform
Specifications apply to Type 2250/2270 fitted with
Microphone Type 4189 and Microphone Preamplifier
ZC-0032
Microphone
SUPPLIED MICROPHONE
Type 4189: Prepolarized Free-field ½
Microphone
or
Type 4190: Free-field ½
Microphone
Nominal Open-circuit Sensitivity: 50 mV/Pa
(corresponding to 26 dB re 1 V/Pa) ± 1.5 dB
Capacitance: 14 pF (at 250 Hz)
MICROPHONE PREAMPLIFIER ZC-0032
Nominal Preamplifier Attenuation: 0.25 dB
Connector: 10-pin LEMO
Extension Cables: Up to 100 m in length between the
microphone preamplifier and Type 2250/2270, without
degradation of the specifications
Accessory Detection: Windscreen UA-1650 can be
automatically detected when fitted over ZC-0032
MICROPHONE POLARIZATION VOLTAGE
Selectable between 0 V and 200 V
SELF-GENERATED NOISE LEVEL
Typical values at 23°C for nominal microphone open-
circuit sensitivity:
Interface
KEYBOARD
Pushbuttons: 11 keys with backlight, optimised for
measurement control and screen navigation
ON-OFF BUTTON
Function: Press 1 s to turn on; press 1 s to enter
standby; press for more than 5 s to switch off
STATUS INDICATORS
LEDs: Red, amber and green
DISPLAY
Type: Transflective back-lit colour touch screen
240 320 dot matrix
Colour Schemes: Five different – optimised for
different usage scenarios (day, night, etc.)
Backlight: Adjustable level and on-time
USER INTERFACE
Measurement Control: Using pushbuttons on
keyboard
Setup and Display of Results: Using stylus on touch
screen or pushbuttons on keyboard
Lock: Keyboard and touch screen can be locked and
unlocked
USB INTERFACE
Hardware Versions 1 to 3: USB 1.1 OTG Mini B
socket
Hardware Version 4: USB 2.0 OTG Micro AB and
USB 2.0 Standard A sockets
MODEM INTERFACE
Connection to Internet through GPRS/EDGE/HSPA
modem connected through:
• the Compact Flash slot (hardware versions 1 – 3)
• the USB Standard A Socket (hardware version 4)
Supports DynDNS for automatic update of IP address
of host name
PRINTER INTERFACE
PCL printers, Mobile Pro Spectrum thermal printer or
Seiko DPU S245/S445 thermal printers can be
connected to USB socket
MICROPHONE FOR COMMENTARY
Microphone, which utilises Automatic Gain Control
(AGC), is incorporated in underside of analyzer. Used
to create voice annotations for attaching to
measurements
CAMERA (TYPE 2270 ONLY)
Camera with fixed focus and automatic exposure is
incorporated in underside of analyzer.
Used to create image annotations for attaching to
measurements
Image Size:
• Hardware versions 1 – 3: 640 x 480 pixels
• Hardware version 4: 2048 x 1536 pixels
Viewfinder Size: 212 x 160 pixels
Format: jpg with exif information
Inputs/Outputs
COMPACT FLASH SOCKET (Hardware Version 1 to
3 only)
Connection of CF memory card, CF modem, CF to
serial interface, CF Ethernet interface or CF WLAN
interface
Weighting Microphone Electrical Total
“A” 14.6 dB 12.4 dB 16.6 dB
“B” 13.4 dB 11.5 dB 15.6 dB
“C” 13.5 dB 12.9 dB 16.2 dB
“Z” 5 Hz–20 kHz 15.3 dB 18.3 dB 20.1 dB
“Z” 3 Hz–20 kHz 15.3 dB 25.5 dB 25.9 dB
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