Datasheet > SCXI-1121

SCXI-1121

更新时间： 2024-10-03 21:18:55

品牌	Logo	应用领域
美国国家仪器公司 - NI		/
页数	文件大小	规格书
6页	196K
描述
Analog Circuit

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中文翻译

获取价格

数据手册

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SCXI-1121 数据手册

SCXI Isolated Sensor

Input Modules

SCXI-1121

SCXI-1122

16 Channels

4 isolated channels

333 kS/s (any gain)

100 S/s (4 kHz ﬁlter), 1 S/s (4 Hz ﬁlter)

Software programmable gain per

module

Software programmable ﬁlter per

module (4 Hz, 4 kHz)

Jumper-selectable gain per channel

Jumper-selectable ﬁlter per channel

(4 Hz, 10 kHz)

4 isolated voltage or current

excitation channels

Two excitation sources (1 voltage,

1 current)

250 V working isolation

rms

per channel

480 V working isolation

rms

Signal inputs from ±2.5 mV to ±250 V

Offset nulling and shunt calibration

with the SCXI-1321

Signal inputs from ±5 mV to ±250 V

Shunt calibration

Driver Software

NI-DAQ

Application Software

LabVIEW

Windows 2000/NT/Me/9x

Mac OS

Measurement Studio

Lookout

Signal Compatibility

comp en sation , brid g e

completion, configurable

voltag e an d cu rren t

SCXI Module

Bridge

RTD

Thermocouple

±2.5 mV

±5 mV

to ±250 V

✔

0-20 mA

4-20 mA

✔

EXPRESS

CODES

SCXI-1121

SCXI-1122

Table 1. SCXI Module Compatibility

✔

✔✔✔✔

✔✔✔✔✔✔✔

excitation ,

brid g e

✔✔✔✔✔

–

✔

For information or to

buy products online,

visit ni.com/catalog

and enter:

balan cin g , an d sh u n t

calibration depending on the configured

terminal block. Each channel is individually

isolated with a working voltage limit of

Overview

scxi1121

scxi1122

National Instruments SCXI-1121 and SCXI-1122 are designed for a

wide variety of sensor and signal inputs requiring isolation. The

SCXI-1121 offers independently configurable isolation amplifiers,

ﬁlters, and excitation sources for each channel. The SCXI-1122 offers a

single isolation ampliﬁer, ﬁlter, and excitation source for all channels.

250 V between channels or channel to

rms

earth. Finally, the SCXI-1121 is CE certiﬁed

as d ou ble in su lated , Categ ory II, for

250 V of operational isolation.

rms

Both modules offer 250 V working isolation and can acquire strain,

rms

RTD, thermocouple, millivolt, volt, 250 V, 0 to 20 mA, and 4 to 20 mA SCXI-1122

current input signals. Both modules can multiplex their channels into

a single channel of the DAQ device, and you add modules to increase

channel count. The SCXI-1121 also offers parallel-mode operation.

The SCXI-1122 consists of 16 relay multiplexers that route the input

channels to a single isolated instrumentation amplifier and lowpass

filter. You can program all inputs together for a range of ±5 mV to

±250 V. You can program the lowpass filter setting for all input

channels for either 4 Hz or 4 kHz. With this architecture, you are

limited to a maximum sampling rate of 100 S/s for the 4 kHz filter

setting, and 1 S/s for the 4 Hz filter setting. This module also offers

Analog Input

SCXI-1121

Th e an alog in p u ts of th e SCXI-1121 con sist of fou r isolated

in stru men tation amplifiers. You can con fig u re each ch an n el cold-junction compensation, bridge completion, and a single voltage

independently using jumpers for input ranges of ±2.5 mV to ±5 V. The

input range for each channel can be extended to ±250 VDC/±250

VAC with the SCXI-1327 terminal block. Each channel also includes a

lowpass ﬁlter that you can conﬁgure using jumpers for 4 Hz or 10 kHz.

Each channel offers transducer-speciﬁc features such as cold-junction

and current excitation source with remote sensing. You can conﬁgure

the SCXI-1122 for 4-wire scanning mode, accepting up to eight 5 kΩ

devices. You can also connect up to 16 devices in series. Each channel

is individually isolated with a working common-mode voltage of 250

between channels or 480 V channel to earth. Finally, the SCXI-

rms

National Instruments 507

Tel: (512) 794-0100 • Fax: (512) 683-9300 • info@ni.com • ni.com

12 3 4 5 6

中文翻译

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与SCXI-1121相关器件

型号	品牌	获取价格	描述	数据表
SCXI-1162	NI	获取价格	Analog Circuit
SCXI-1190	NI	获取价格	4x1 unterminated multiplexer/50 characteristic impedance
SCXI-1503	NI	获取价格	SCXI 16-Channel RTD Module
SCXI-1521	NI	获取价格	24 quarter-bridge strain gage inputs/Programmable excitation
SCXI-1540	NI	获取价格	Analog Circuit
SCXL	HONEYWELL	获取价格	Microstructure Pressure Sensors Precision Compensated 0 in H2O to 4 in H2O and 0 in H2O to
SCXL004DN	HONEYWELL	获取价格	Microstructure Pressure Sensors Precision Compensated 0 in H2O to 4 in H2O and 0 in H2O to
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SCXO23HG2C41.5MHZ	CTS	获取价格	Micro Peripheral IC
SCXO23HG3C50.0KHZ	CTS	获取价格	Micro Peripheral IC

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