Input specifications – Spectrum Controls 1734sc-IF4U User Manual
Page 42

A-2
Point IO™ 4 Channel Universal Analog Input Module
User’s Manual Pub. 0300266-01 Rev. A
Input Specifications
Input Specification
Inputs per module
System Configuration 1: 2 each 4/3/2 wire RTDs/Resistors
System Configuration 2: 2 each V/I, 1 each 4/3/2 wire RTD/Resistor
System Configuration 3: 1 each TC, 1 each 4/3/2 wire RTD/Resistor,
1 each CJC
System Configuration 4: 2 each V/I, 1 each TC, 1 each CJC
System Configuration 5: 1 each V/I, 2 each TC, 1 each CJC
System Configuration 6: 3 each TC, 1 each CJC
System Configuration 7: 4 each V/I
Resolution 16
Bit
Input Update Rate
See Table 3-2 (Channel Conversion Time)
ADC Type
Sigma Delta
CMRR
>96dB Typical with 4Hz and 17Hz filters
NMRR
4 Hz Filter
74dB minimum at 50 and 60 Hz
17 Hz Filter
65dB minimum at 50 and 60 Hz
62 Hz Filter
First notch at 31Hz, typically 30dB
470 Hz Filter
First notch at 237 Hz, typically 35dB
Input ranges
0-20mA, 4-20mA, ±50mV, ±100mV, 0-5V, 1-5V, 0-10V, ±10V,
types J, K, T, E thermocouple, 100Ω and 1000Ω PT385 and Pt3916,
3000Ω resistance.
pH sensor ±1V
Input Impedance
Tolerances
Current Impedance: 253.0 +/-0.5% ohms
Voltage Impedance: 10.425 +/-0.7% Mohm
Data Format
Signed integer
Maximum overload
Fault protected to 24V DC
Calibration
Factory calibrated, user calibration not supported
Indicators
1 green/red module status LED
1 green/red network status LED
4 green/red input status LEDs
1 green/red module status LED
1 green/red network status LED
2 green/red input status LEDs
Thermocouple
Inputs
Linearization per ITS-90
System accuracy at 25°C (Using 4Hz and 17Hz filters)
Type J (°C to +55°C): ± 0.6°C maximum
Type T (0°C to +55°C): ± 1°C maximum
Type K (0°C to +55°C): ± 1°C maximum
Type E (0°C to +55°C): ± 0.6°C maximum
System accuracy at 25°C (Using 4Hz and 17Hz filters)
Type J: ± 0.6°C maximum
Type T (-230°C to 400°C): ± 1°C maximum
Type T (-270°C to -230°C): ± 5.4°C maximum
Type K (-225°C to 1370°C): ± 1°C maximum
Type K (-270°C to -225°C): ± 7.5°C maximum
Type E (-210°C to 1000°C): ± 0.5°C maximum
Type E (-270°C to -210°C): ± 4.2°C maximum
System accuracy at 0°C to +55°C (Using 4Hz and 17Hz filters)
Type J (0°C to +55°C): ± 1.2°C maximum
Type T (0°C to +55°C): ± 2°C maximum
Type K (0°C to +55°C): ± 2°C maximum
Type E (0°C to +55°C): ± 1.2°C maximum
System accuracy at 0-60°C (Using 4Hz and 17Hz filters)