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home > product> solutions > remote i/o modules/units > I-8K & I-87K > I-87005W
 
I-87005W
8-channel Thermistor Input and 8-channel Digital Output Module
 
   
 
Model: I-87005W  
 
  • Thermistor Input
  • Individual Channel Configuration
  • Open Wire Detection
  • 8-channel Digital Output for Alarm Output
  • 3000 VDC Intra-module Isolation
  • Overvoltage Protection for Thermistor Input
  • User-defined Thermistor Types
  • RoHS Compliant
  • Wide Operating Temperature Range: -25 ~ +75°C
 
The I-87005W module is used for measuring temperature using a thermistor. The module supports a wide range of thermistors, and features individual channel configuration, which means that eight of the input channels can be individually configured for different kinds of thermistor. In addition, the I-87005W also provides 8 digital output channels that can be used for alarm output, and supports user-defined thermistor types, which can be added by specifying the Steinhart coefficients, if necessary. The inclusion of 3000 VDC intra-module isolation and overvoltage protection for the thermistors on the I-87005W ensures that the module operates at a higher reliability.
 
  • Temperature Measurement
  • Environment Monitoring
  • Tunnel Monitoring
  • Building Monitoring
 
Thermistor Input
Channels 8
Wiring 2 Wires
Sensor Type Precon ST-A3, Fenwell U, YSI L100, YSI L300, YSI L1000, YSI B2252, YSI B3000, YSI B5000, YSI B6000, YSI B10000,
YSI H10000, YSI H30000, User-defined
Resolution 16-bit
Accuracy ±0.1% of FSR
Sampling Rate 8 Hz (Total)
Zero Drift ±0.5 μV/°C
Span Drift ±25 ppm/°C
Common Mode Rejection 113 dB
Normal Mode Rejection 100 dB
Input Impedance >1 MΩ
Individual Channel Configuration Yes
Resistance Measurement 200 kΩ
Open Wire Detection Yes
Overvoltage Protection 120 VDC/110 VAC
Digital Output
Output Channels 8
Output Type Isolated Open-collector
Maximum Load Current 700 mA/Channel
Load Voltage +5 ~ +50 VDC
Safe Value Yes
Power-on Value Yes
 
Communication
Interface RS-485
Format N, 8, 1
Baud Rate 1200 ~ 115200 bps
Protocol DCON
Dual Watchdog Yes, Module (1.6 Seconds), Communication (Programmable)
LED Indicators/Display
System LED Indicator 1 LED as Power/Communication Indicator
I/O LED Indicator 16 LEDs as High/Low Alarm Signals
Isolation
Intra-module Isolation, Field-to-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 0.7 W Max.
Mechanical
Dimensions (W x L x H) 30 mm x 95 mm x 114 mm
Environment
Operating Temperature -25 ~ +75°C
Storage Temperature -40 ~ +85°C
Humidity 10 ~ 95% RH, Non-condensing
 
I-87005W-G CR 8-channel Thermistor Input and 8-channel Digital Output Module (Gray Cover) (RoHS)
 
SG-770 CR 7-channel Differential or 14-channel Single-ended Surge Protector (RoHS)
 
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