SUPPLIED MICROPHONE
Type 4189: Prepolarized 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 ZC0032
Nominal Preamplifier Attenuation: 0.25 dB
Connector: 10-pin LEMO
Extension Cables: Up to 100m in length between the microphone preamplifier and Type 2250, without degradation of the specifications
Accessory Detection: Windscreen UA 1650 can be automatically detected when fitted over ZC0032
MICROPHONE POLARIZATION VOLTAGE
Selectable between 0 V and 200V
SELF-GENERATED NOISE LEVEL
Typical values at 23°C for nominal microphone open-circuit sensitivity:
| Weighting |
Microphone |
Electrical |
Total |
| "A" |
14.6 dB |
12.6 dB |
16.7 dB |
| "B" |
13.4 dB |
11.5 dB |
15.6 dB |
| "C" |
13.5 dB |
12.9 dB |
16.2 dB |
| "Z" 5Hz-20 kHz |
15.3 dB |
18.3 dB |
20.1 dB |
| "Z" 3Hz-20 kHz |
15.3 dB |
25.5 dB |
25.9 dB |
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 x 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
USB 1.1 OTG Mini B socket
Modem Interface
Hayes compatible GSM or standard analogue modems connected through the Compact Flash slot.
INPUT SOCKET
Connector: Triaxial LEMO
Input Impedance: >= 1M Ω
Direct input: Max. input voltage: ± 14.14Vpeak
Signal Source Impedance: < 200 Ω
Direct Input: Max. input voltage: ± 14.14Vpeak
CCLD Input: Max. input voltage: ± 7.07 Vpeak
CCLD Current/voltage: 4mA/25V
TRIGGER SOCKET
Connector: Triaxial LEMO
Max. Input Voltage: ± 20Vpeak
Input Impedance: > 47KΩ
OUTPUT SOCKET
Connector: Triaxial LEMO
Max. Peak Output Level: ± 4.46V
Output Impedance: 50Ω
HEADPHONE SOCKET
Connector: 3.5 mm Minijack stereo socket
Max. Peak Output Level: ± 1.4V
Output Impedance: 2.2Ω in each channel
MICROPHONE FOR COMMENTARY
Microphone, which utilises Automatic Gain Control (AGC), is incorporated in underside of instrument. Used to create voice annotations for attaching to measurements
EXTERNAL DC POWER SUPPLY REQUIREMENTS
Used to charge the battery pack in the instrument
Voltage: 8 - 24 VDC, ripple voltage < 20mV
Current Requirement: min. 1.5 A
Power Consumption: < 2.5W, without battery charging, < 10W when charging
Cable Connector: LEMO Type FFA.00, positive at centre pin
BATTERY PACK
Type: Li-Ion rechargeable
Typical Operating Time: > 8 hours
STORAGE SYSTEM
Internal Flash-RAM (non-volatile): 20 Mbyte for user setups and measurement data
External Secure Digital Memory Card (SD-card): For store/recall of measurement data
External Compact Flash Memory Card (CF-card): For store/recall of measurement data
CLOCK
Back-up battery powered clock. Drift <0.5s per 24 hour period
WARM-UP TIME
From Power Off: < 2 minutes
From Standby: < 10 seconds for prepolarized microphones
TEMPERATURE
IEC 60068-2-1 & IEC 60068.2.2: Environmental Testing. Cold and Dry Heat.
Operating Temperature: -10 to + 50°C (14 to 122°F), < 0.1 dB
Storage Temperature: -25 to +70°C (-13 to 158°F)
HUMIDITY
IEC 60068-2-78: Damp Heat: 90% RH (non-condensing at 40°C (104°F))
Effect of Humidity: < 0.1 dB for 0% < RH < 90% (at 40°C (104°F) and 1 kHz)
MECHANICAL
Environmental Protection: IP44
Non-operating:
IEC 60068-2-6: Vibration: 0.3 mm, 20 m/s2, 10 - 500Hz
IEC 60068-2-27: Shock: 1000 m/s2
IEC 60068-2-29: Bump: 4000 bumps at 400 m/s2
WEIGHT AND DIMENSIONS
650 g (23 oz.) including rechargeable battery 300 x 93 x 50mm (11.8 x 3.7 x 1.9") including preamplifier and microphone
LANGUAGE
User Interface in Catalan, Croatian, Czech, Danish, English, Flemish, French, German, Hungarian, Japanese, Italian, Polish, Portuguese, Romanian, Serbian, Slovenian, Spanish and Swedish
HELP
Concise context-sensitive help in Catalan, English, French, German, Italian, Japanese, Polish, Romanian, Serbian, Slovenian and Spanish
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