Bộ thu thập và lưu trữ dữ liệu 3 kênh dây rung Campbell Scientific CRVW3

Thương hiệu: Campbell Scientific | Tình trạng: Còn hàng
Liên hệ

CRVW3 3-Channel Vibrating-Wire Datalogger

Gọi 0904251826 để được trợ giúp

Bộ thu thập và lưu trữ dữ liệu 3 kênh dây rung Campbell Scientific CRVW3

Overview

The CRVW3 is a self-contained, low-cost, three-channel vibrating-wire datalogger. It is designed to be an independent datalogger, or a component of a larger radio-linked data acquisition network when configured with available wireless communication options. The CRVW3 arrives factory integrated with a power supply and a weatherproof enclosure.

Benefits and Features

Reads and stores data from one to three vibrating-wire sensors

Charge regulator included for solar panel connection

Enclosure rated to IP66

Simple programming interface

Integrated rechargeable or alkaline battery options

Compatible with many existing Campbell Scientific data acquisition networks

PakBus router/radio repeater capabilities

Detailed Description

The CRVW3 uses vibrating-wire spectral-analysis technology (VSPECT™) to provide the best measurement possible for vibrating-wire sensors. VSPECT™ observes the incoming sensor signal, performs a Fourier transform and a spectral analysis, and determines the sensors’ frequency by identifying the strongest signal in the acceptable range while filtering out environmental and electrical noise.

The CRVW3 provides the following data: the resonant sensor frequency, thermistor resistance for temperature calculation, and diagnostic values to help determine the validity of the frequency measurement.

Note: The CRVW3 requires Device Configuration Utility (DevConfig) v 2.10 or later. When radio options are used, the CRVW3 requires LoggerNet v 4.3 or later.

Specifications

-NOTE-

The base -NA option is CE approved, but the -RF451, -RF407, and -RF412 options are not CE approved.

Processor

ST ARM CORTEX-M4 (32-bit with hardware FPU, running at 144 MHz)

Data Storage

16 MB serial flash, up to 420,000 records (single channel), up to 160,000 records (3 channels)

Clock Accuracy

±3 min. per year

Measurement Interval Range

1 s to 1 day

USB Micro B

Direct connect to PC (supplies power for configuration and data collection), 2.0 full speed, 12 Mbps

Configuration

Software configurable, no programming required

Operating Temperature Range

-40° to +70°C

Compliance

RoHS

Warranty

One year against defects in materials and workmanship

Weatherproof Enclosure Rating

NEMA 4X (IP66) with proper use of cable entry points

Enclosure Mounting

Stainless-steel universal mount for pole/wall mount (optional) or plastic mounting tabs (included)

Enclosure Dimensions

24.1 x 22.9 x 14.0 cm (9.5 x 9.0 x 5.5 in.)

Weight

  • 4.2 kg (9.2 lb) with rechargeable battery

  • 3.0 kg (6.6 lb) with alkaline batteries

Power

Charge Terminal

16 to 28 Vdc (from solar panel or dc power converter)

Battery Options

Rechargeable 7 Ah or 8 D-cell alkaline

Measurements

Channel Count

3 vibrating wire (VW) and 3 thermistor/RTD (temperature) measurements

Measurement Speed

1 s per sensor (VW and temperature)

Measurements - Vibrating-Wire

Measurement Excitation Options

2 V (±1 V), 5 V (±2.5 V),12 V (±6 V)

Measurement (Frequency) Resolution

0.001 Hz RMS (-40° to +70°C)

Time-series Basic Resolution

24-bit ADC

Measurement Accuracy

+/-0.006% of reading (-20° to +70°C)

Measurement Method

VSPECT (Spectral Analysis), U.S. Patent No. 7,779,690, includes diagnostic data

Measurements - Temperature (Resistance)

-NOTE-

Thermistor or RTD resistance can be scaled to Temperature (Deg C) per manufacturer specifications. The resulting temperature can be used as a correction factor for the sensor’s output.

Measurement Method

Half-bridge ratiometric, 24-bit ADC, built-in completion resistor 4.99 kΩ 0.1%

Thermistor Precision

0.020 ohm RMS @ 3000 ohm (approximately 0.00015°C RMS for most vibrating-wire thermistors)

Accuracy

±0.15% of reading (-40° to +70°C)

-RF451 Option

Internal Radio Description

5 to 1000 mW, user selectable; 902 to 928 MHz license-free band, frequency hopping spread-spectrum radio

Radio Repeater

Devices with the -RF451 option can be set up as a radio repeater.

Compliance Information

  • KNYAMM0921TT (United States FCC ID)

  • 2329B-AMM0921TT (Canada [IC])

-RF407 Option

Internal Radio Description

5 to 250 mW, user selectable; 902 to 928 MHz license-free band, frequency hopping spread-spectrum radio

Radio Repeater

Devices with the -RF407 option can be set up as a radio repeater.

Compliance Information

  • MCQ-XB900HP (United States FCC Part 15.247)

  • 1846A-XB900HP (Industry Canada ([IC])

  • RCPDIXB15-0672-A2 (Mexico IF)

-RF412 Option

Internal Radio Description

5 to 250 mW, user selectable; 915 to 928 MHz license-free band, frequency hopping spread-spectrum radio

Radio Repeater

Devices with the -RF412 option can be set up as a radio repeater.

Compliance Information

  • ACMA RCM

  • MCQ-XB900HP (United States FCC Part 15.247)

  • 1846A-XB900HP (Industry Canada [IC])

-RF422 Option

Internal Radio Description

2 to 25 mW, user selectable; 863 to 870 MHz license-free band, frequency hopping spread-spectrum radio

EU Conformity

View the EU Declaration of Conformity in the Documents section of the web page.

Download

Brochures

CRVW3 Vibrating-Wire Datalogger

Vibrating-Wire Spectral Analysis Technology (VSPECT)

Manuals

CRVW3 3-Channel Vibrating-Wire Datalogger

CRVW3 Datalogger Quick Deploy Guide

Technical Papers

Weatherproofing Exterior Antenna Connections

Compliance

CRVW3-RF422 and CRVW3-NE-RF422

Sản phẩm đã được thêm vào giỏ hàng

Số lượng:

Tổng tiền:

Sản phẩm đã được thêm vào giỏ hàng

Phí vận chuyển: Tính khi thanh toán

Tổng tiền thanh toán: