S200-IT8 S200IT8 Thermocouple Input Unit , China S200-IT8 S200IT8 Thermocouple Input Unit Manufacturers, Suppliers, Factory

Overview

Place of Origin:	Sweden
Brand Name:	ABB
Model Number:	S200-IT8 S200IT8
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Specifications

Parameter	Value
Model	S200-IT8 S200IT8
Product Type	Thermocouple Input Unit
Dimensions	9.3 x 5.3 x 4.5 cm
Weight	0.085 kg (net), 0.180 kg (gross)
Number of Inputs	8
Galvanic Isolation	Yes
Status Indicator	Bi-colour LED (green/red)
Resolution	16-bit
Input Voltage Range	±76.5 mV DC
Supported Thermocouples	B, C, E, J, K, N, R, S, T
Thermocouple Range	B: 300–1800°C; C: 0–2315°C; E: -270–1000°C; J: -210–1200°C; K: -270–1372°C; N: -270–1300°C; R/S: -50–1768°C; T: -270–400°C
Overvoltage Capability	35 V DC, 25 V AC continuous, 250 V peak
Accuracy (with filter)	≤0.025% FSR ±0.5°C
Accuracy (without filter)	≤0.05% FSR ±0.5°C
Input Offset Drift	±6 µV/°C max
Gain Drift	10 ppm/°C
Overall Drift	≤50 ppm/°C of span
Open Thermocouple Detection	Upscale out-of-range indication
Open Thermocouple Detection Time	~1 s
Internal Bus Current Consumption	≤20 mA
Filter	Programmable
Noise Rejection	-60 dB @ 60 Hz
Common Mode Rejection	-115 dB @ 60 Hz, -100 dB @ 50 Hz
System Throughput	28–325 ms (1 ch), 2.6 s (8 ch)
Operating Temperature	0 °C to +55 °C
Storage Temperature	-40 °C to +85 °C
Humidity (Operating)	5–95% non-condensing
Humidity (Storage)	5–80% non-condensing
External Power Supply	24 V DC (19.2–31.2 V DC)
Supply Current	60 mA @ 24 V DC
Power Dissipation	3 W max
Unit Identity Code	1B00 (hex)
Backplane Key Code	3
Certifications	CSA Class I Div 2 (T5), European Ex Zone 2 Group IIC

Functional Description

S200-IT8 S200IT8 is an analog I/O unit for 8 thermocouple input signals. The 8 input signals are connected to the unit via the screw terminal on the terminal base unit. They are galvanically isolated from the Serial bus (see function block diagram below).

It is possible to deselect unused channels to improve system throughput. Periodic user calibration is supported.

Power for the internal logic is provided via the process power supply.

Applications

Iron and steel smelting plants: Monitoring extreme high-temperature environments in blast furnaces, converters, and heat treatment furnaces.

Glass manufacturing plants: Precise temperature monitoring of melting furnaces and forming molds.

Waste incineration plants: Real-time temperature monitoring of incinerator furnaces and flue gas treatment systems.

Ceramic tunnel kiln plants: Multi-point temperature acquisition for controlling sintering curves.

Coal power plants: Monitoring steam temperatures in superheaters, reheaters, and flue gas systems.

Troubleshooting

Steady red: Indicating a critical fault

Measure:

Replace the unit.

Flashing red: Indicating a noncritical fault (such as open sensor, input out of range, etc.)

Measure:

1. Check cabling and connectors.

2. Check that correct type is selected in the hardware configuration.

3. Replace the unit.

Flashing green: Indicating that the unit is functional but not configured

Measure:

1. Start the program to configure the unit.

2. Check the program.

3. Replace the unit.

Features

Replacement under system power

CE and UL approvement

Software configurable function

Mechanical coding for safe replacement

Safety function on outputs in remote configuration

Variety of termination options

The same I/O units in central andremote configurations

Compatible with I/O 200C

FAQ

Q1: Can the S200-IT8 S200IT8 module directly measure voltage?
Yes, it supports ±100 mV DC voltage input and is commonly used to connect to some small signal transmitters.

Q2: Why is there a large difference between my S200-IT8 S200IT8 module's measured value and the actual temperature on site?
Please check if the polarity of the compensating wires is reversed, or if the thermocouple type selected in the software (e.g., K type mistakenly selected as J type) is incompatible.

Q3: What does it mean when the red light on the S200-IT8 S200IT8 module panel is on?
It may indicate an internal self-test error, an interruption of the external 24V power supply, or a disconnection in all configured channels.

Q4: Does the S200-IT8 S200IT8 module support 3-wire connection?
No. Thermocouples are typically 2-wire; 3-wire or 4-wire connections are specific to RTDs (such as the S200-IR8).

Q5: Do unused channels on the S200-IT8 S200IT8 need to be addressed?
To avoid false alarms, it is recommended to disable unused channels in the software configuration or short-circuit their input terminals.