Module 1/8/32 kênh đầu vào dây rung VW (Vibrating Wire) ICP DAS I-87089W
Features
- Support 8 ~ 32 Vibrating Wire inputs
- Support 450 ~ 6000 Hz Vibrating Wire Sensor
- Support Channel-to-Channel Isolation
- RoHS Compliant
- Wide Operating Temperature Range: -25 to +75°C
Introduction
The vibrating wire sensor has a wire which is initially plucked by a series of electrical magnetic forces from a coil. The conductive wire after plucking is vibrating in a magnetic field. The wire will disturb the field, and then the coil can pick up the induced voltage change. The signal is amplified and detected by a VW readout device, or called VW reader. After plucking, there is no other force acting on this wire. When the transient response dies out, the reader can read a stable resonant frequency. The resonant frequency is function of the tension of this wire.
Applications
The I-87089W/S can be extended to 32 channels by connecting 3 extra DN-1618UB.
I/O Specifications
Vibrating Wire Input | ||
Channels | 8 | |
Input Type | Vibrating Wire Sensor (2 VW wire + 2 Temperature wire +1 shield wire) | |
Measuring Range | Wire | 450 ~ 6000 Hz |
Temperature | -20°C ~ +50°C | |
Excitation mode | Enhanced square wave | |
Resolution | Wire | ±0.1 Hz % of FSR |
Temperature | ±0.1°C % of FSR | |
Channel-to-Channel Isolation | Yes, 1 kV |
System Specifications
Communication | ||
Interface | RS-485 | |
Format | N, 8, 1 | |
Baud Rate | 1200 to 115200 bps | |
Connector | D-Sub 37 | |
RS-485 (Data+, Data-) | D-sub 37-pin connector with 3000 VDC isolation | |
Protocol | 115200, 8, N, 1 | |
Dual Watchdog | Yes, Module (1.6 Seconds), Communication (Programmable) | |
LED Indicators/Display | ||
System LED Indictors | Yes, 1 as Power/Communication Indicator | |
I/O LED Indicators | 16 as High/Low Alarm Signals | |
Isolation | ||
Intra-module Isolation, Fieldto-Logic | 3000 VDC | |
EMS Protection | ||
ESD (IEC 61000-4-2) | ±4 kV Contact for each Terminal | |
±8 kV Air for Random Point | ||
Power | ||
Power Consumption | 3.6 W | |
Mechanical | ||
Dimensions (L × W × H) | I-87089W-G | 114 mm × 30 mm × 85 mm |
DN-1618UB | 112 mm × 165 mm × 52 mm | |
Environment | ||
Operating Temperature | -25 to +75°C | |
Storage Temperature | -40 to +85°C | |
Humidity | 10 to 95% RH, Non-condensing |
Ordering information
I-87089W-G | 1-channel Vibrating Wire Input Module |
I-87089W-G/S | 8-channel Vibrating Wire Input Module Includes the I-87089W Module, a DN-1618UB Daughter Board and a DB-37 Male-Male D-sub cable 1M |
DN-1618UB | 8-channel Vibrating Wire extended board |
Accessories
SG-770 CR | 7-channel Diff erential or 14-channel Single-ended Surge Protector (RoHS) |