B&K 2250 Light Manuale Utente Scaricare il pdf (Pagina 9)

Compliance with Standards

Specifications – Hand-held Analyzer Type 2250-L (2250 Light) Platform

Specifications apply to 2250 Light fitted with Microphone Type 4950 and

Microphone Preamplifier ZC-0032:

Microphone

SUPPLIED MICROPHONE

Type 4950: Prepolarized Free-field ½ Microphone

Nominal Open-circuit Sensitivity: 50 mV/Pa (corresponding to 26 dB

re 1 V/Pa) ±2 dB

Capacitance: 12.5 pF (at 250 Hz)

MICROPHONE PREAMPLIFIER ZC-0032

Nominal Preamplifier Attenuation: 0.3 dB

Connector: 10-pin LEMO

Extension Cables: Up to 100 m in length between the microphone

preamplifier and 2250 Light, without degradation of the specifications

MICROPHONE POLARIZATION VOLTAGE

Selectable between 0 V and 200 V (hardware version 4 only)

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 5s to switch off

STATUS INDICATORS

LEDs: Red, amber and green

DISPLAY

Type: Transflective back-lit touch screen, 240  320 dot matrix

Black and white scheme

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 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 USB Standard A Socket

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

Inputs/Outputs

SECURE DIGITAL SOCKET

• 2 × SD sockets

Connect SD and SDHC memory cards

LAN INTERFACE SOCKET

• Connector: RJ 45 Auto-MDIX

• Speed: 100 MbpsXXXX

• Protocol: TCP/IP

TRIGGER SOCKET

Connector: Triaxial LEMO

Max. Input Voltage: ±20 Vpeak

Input Impedance: >47 kW

Precision: ±0.1 V

HEADPHONE SOCKET

Connector: 3.5 mm Minijack stereo socket

Max. Peak Output Level: ±1.4 V

Output Impedance: 32  in each channel

Power

EXTERNAL DC POWER SUPPLY REQUIREMENTS

Used to charge the battery pack in the instrument

Voltage: 8–24 V DC, ripple voltage <20 mV

Current Requirement: min. 1.5 A

Power Consumption: <2.5 W, without battery charging, <10 W when

charging

Cable Connector: LEMO Type FFA.00, positive at centre pin

EXTERNAL AC MAIN SUPPLY ADAPTOR

Part No.: ZG-0426

Supply Voltage: 100 to 120/200 to 240 VAC; 47 to 63 Hz

Connector: 2-pin IEC 320

CE-mark indicates compliance with the EMC Directive and Low Voltage Directive.

C-Tick mark indicates compliance with the EMC requirements of Australia and New Zealand.

Safety EN/IEC 61010–1, ANSI/UL 61010–1 and CSA C22.2 No.1010.1: Safety requirements for electrical equipment for

measurement, control and laboratory use.

EMC Emission EN/IEC 61000–6–3: Generic emission standard for residential, commercial and light industrial environments.

CISPR 22: Radio disturbance characteristics of information technology equipment. Class B Limits.

FCC Rules, Part 15: Complies with the limits for a Class B digital device.

IEC 61672–1, IEC 61260, IEC 60651 and IEC 60804: Instrumentation standards.

Complies with Canadian standard ICES–001

EMC Immunity EN/IEC 61000–6–2: Generic standard – Immunity for industrial environments.

EN/IEC 61326: Electrical equipment for measurement, control and laboratory use – EMC requirements.

IEC 61672–1, IEC 61260, IEC 60651 and IEC 60804: Instrumentation standards

Weighting Microphone Electrical Total

A 14.0 dB 12.7 dB 16.4 dB

B 12.9 dB 11.9 dB 15.4 dB

C 13.0 dB 13.6 dB 16.3dB

5 Hz–20 kHz

14.4 dB 19.3 dB 20.5 dB

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

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B&K 2250 Light Manuale Utente Pagina 9

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