KDI Series Digital Display Controller Support Multi Machine Network
Communication
Introduction
The KDI series display controller is versatile for measuring and
controlling temperatures, pressures, liquid levels, lengths, etc. A
microprocessor is used for digital processing, ensuring highly
accurate linear correction of non - linear signals.
It combines digital and analog display. The digital LED shows real
- time values for precise control, while the 40 - line light column
provides clear and intuitive display for easy parameter comparison.
Users can access the internal parameter settings like input type
and communication parameters. Multiple index numbers can be input
and switched online without jumper - changing or power - off,
thanks to advanced jumper - free technology.
The controller supports multi - machine communication with standard
serial two - way functions (RS - 232C, etc.) and adjustable baud
rates (300 - 9600bps). It can communicate with devices like
computers and PLCs to form an intelligent system. With data
collectors and Chinese industrial control software, network
management between multiple instruments and host computers is
easily achieved.
Features
· New concept of computer digital auto-tuning
· Clear and clear measurement display
· Support multi-machine network communication, communication
protocol can be freely set
· Unique full open user-defined interface
· Set parameter power-off permanent retention and parameter
password lock
· Fully digital cold junction compensation
· Multi-size external structure size
· AC and DC switching power supply mode
Parameters
Matching with standard indexing temperature sensor:
| Input Signal | Indexing No. | Resolution | Sensor | Range |
| B | 1 | Platinum30-platinum6 rhodium
| 400～1800℃ |
| S | 1 | Platinum10-platinum | 0～1600℃ |
| K | 1 | Nickel chromium-nickel silicon | 0～1300℃ |
| E | 1 | Nickel chromium-constantan
| 0～1000℃ |
| J | 1 | Iron-constantan
| 0～1200℃ |
| T | 0.1 | Copper-constantan
| -199.9～3200℃ |
| Wre | 1 | Tungsten3-tungsten25
| 0～2300℃ |
| Pt100 | 1 | Platinum thermal resistance R0 = 100Ω | -199～650℃ |
| Pt100 | 0.1 | Platinum thermal resistance R0= 100Ω | -199.9～320.0℃ |
| Cu50 | 0.1 | Copper thermal resistance R0= 50Ω | -50.0～150.0℃ |
With standard signal transmitter:
| Input Signal | Standard Signal Range | Input Resistance | Matching Transmitter | Measuring Range |
various mV signal 0～10mA 4～20mA 0～5V 1～5V 30～350Ω | ≥10MΩ ≤250Ω ≤250Ω ≥250KΩ ≥250KΩ | hall transmitter compatible with DDZ-II type instrument compatible with DDZ-III type instrument compatible with DDZ-II type instrument compatible with DDZ-III type instrument compatible with remote pressure resistors | set according to user needs.
range: -1999～9999 |
Main Technical parameters
| Input Signal | Analog | Resistance: standard thermal resistance (remote pressure resistance
such as Pt100, Cu50)
Galvanic couples: standard thermocouples ( B, S, K, E, J, T, WRe,
etc.)
Current: 0~10mA, 4~20mA, 0~20mA, etc. (Input impedance ≤250Ω)
Voltage: 0~5V, 1~5V, etc.(Input impedance ≥250Ω) |
| Measuring Range | -1999~9999 |
| Accuracy | 0.2% FS ±1 or 0.5% FS ±1 |
| Resolution | 1, 0.1, 0.01 or 0.001 |
| Temperature Compensation | 0~50 |
| Display Method | -19999~9999 measured value display -19999~9999 set value display 0~100% measured value light column display LED operating status display |
| Light Column Accuracy | The light column display accuracy is 1% |
| Control Method | Position ON / OFF with backlash |
| Output Signal | Analog output
| DC 0-5V (load capacity ≤250Ω) DC 1~5V (load capacity ≤250Ω) DC 0~10mA (load capacity ≤750Ω) DC 4~20mA (load capacity ≤500Ω) |
Switch output
| Relay control output - Relay ON/OFF with backlash Contact capacity: AC220V/3A; DC24V/6A (resistive load)
Controllable silicon output-SCR (controllable zero-crossing pulse),
can trigger controllable silicon: 400V/100A
Solid state relay output - SSR (solid state relay control signal)
output, 6 ~ 24 / 30mA (voltage cannot be adjusted) |
Communication output
| Interface mode - Standard serial two-way communication interface:
RS-485, RS-232C, RS-422, etc. |
| Feed output | DC24V, load capacity ≤30mA |
| control method | Optional 1~4 limit control, LED indication. The control mode is the
relay ON/OFF with backlash (user can set it freely)
|
| control accuracy | ±1 |
| Alarm mode | You can select 1~4 limit alarm, LED indication. The control mode is
the relay ON/OFF with backlash (user can set it freely) |
| Alarm accuracy | ±1 |
| Temperature compensation | 0～5 0°C digital temperature automatic compensation |
| Parameter setting | • Panel touch type press key digital setting • Parameter setting value is permanently hold when power off • Parameter setting value Password Lock |
| Protection method | • Input loop disconnection alarm (when thermocouple or resistance
input), relay output, LED indication • Input over/under range alarm • Power under voltage automatic reset •Work abnormally automatic reset (watch dog) |
| Online communication | The communication protocol is a two-wire system, a three-wire
system or a four-wire system (e.g. RS485, RS232C, RS422, etc. ) can
also be specially requested by the user. The baud rate of 300 to 9
6 0 0 b p s can be set freely by the internal parameters of the
instrument. The interface and the main unit are separated by
photo-electricity, and the communication distance can reach 1.2 km.
The system adopts the master-slave communication mode. The whole
control loop only needs one two (three, four) core cable, which can
realize communication with the host computer. The upper computer
can call the device number set by the user, and call the scene of
each instrument at any time. Data, and can be used to set internal
parameters of the instrument. Equipped with data collector and
industrial control software, it can realize online communication
between multiple instruments and one or more microcomputers. |
| Use environment | • Ambient temperature 0～5 0°C • Relative humidity ≤ 85 R H • Avoid strong corrosive gases |
| Power Supply | Normal type : • A C 220 V + 10 - 1 5 % (50 Hz ± 2Hz linear power source ) Special type: • A C 90 ~ 260 V- - switch power • D C 24 V ±2 V- - switch-off power supply |
| Power consumption | • ≤5 W (A C 220 V linear power supply) • ≤4 W (A C 90 V~265 V switch power supply) • ≤4 W (D C 4 V power supply) |
| Weight | 420g (AC220V linear power supply) |
Dimensions
Dial opening size (in mm)
-C80.T880 series (horizontal type)
-C40 series (horizontal type)
-C70 series (horizontal type)
-C10 series (horizontal type)
-S80.ST80 Series (Vertical)
-S40 Series (Vertical)
-C90 Series
Ordering Information
| Model | Code | Description |
| KID- | | | | | | | | | | | |
| Appearance feature | C S | | | | | | | | | | Horizontal display instrument (Note 1) Vertical display instrument (Note 1) |
| Dimensions | 1 4 7 8 9 | | | | | | | | | 48 X48mm 96 X 48mm (horizontal) 48 X96mm (vertical) 72 X 72mm 160 X 80mm (horizontal) 80 X160mm ((vertical) 96 X 96mm |
| Control | 01 03 04 | | | | | | | | Measurement display Double limit control Four limit control or four limit alarm output (Note 2) |
| communication method | | | | | | | | See "Communication Method" |
| Output | | | | | | | See "Instrument Output Method" |
| Input | | | | | | See "Input Type Selection Code" |
| First alarm method | N H L | | | | No alarm (can be omitted) Upper limit control / alarm (four limit control / alarm 2H note 2) Lower limit control / alarm (four limit control / alarm 2L note 2) |
| Second alarm method | N H L | | | No alarm (can be omitted) Upper limit control / alarm (four limit control / alarm 2H note 2) Lower limit control / alarm (four limit control / alarm 2L note 2) |
| Feed output | P | | DC24V feed output |
| Power Supply | W T | DC24V power supply AC90 ~ 265V power supply (switching power supply) AC220V power supply (linear power supply can be omitted) |
