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  1. Sensors 5 Products available
  2. Relays

    2 Products available
  3. Inverters, UPS & Converters

    2 Products available
  4. Measuring Instruments & Equipment

    2 Products available
  5. Scanners

    2 Products available
  6. Instrumentation & Control Equipment

    1 Products available
  7. Electrical & Electronic Gadgets

    1 Products available
  8. Electric Circuit Components & Parts

    1 Products available
  9. Voltage Stabilizers & Power Controllers

    1 Products available
  10. Limit Controller

    1 Products available
  11. Others Products 7 Products available

Other Products / Services

Thermoelectric Modules

Thermoelectric technology is an active thermal management technique based on the Peltier effect. It was discovered by J.C.A Peltier in 1834, this phenomenon involves the heating or cooling of the junction of two thermoelectric materials(bismuth and telluride) by passing current through the junction. During operation, direct current flows through the TEC module causing heat to be transfered from one side to the other. Creating a cold and hot side. If the direction of the current is reversed, the cold and hot sides are changed. Its cooling power also can be adjusted by changing its operating current. A typical single stage cooler (Figure. 1) consists of two ceramic plates with p and n-type semiconductor material (bismuth , telluride) between the ceramic plates. The elements of semiconductor material are connected electrically in series and thermally in parallel.
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Alarm Annunciators

Micro-Processor based 8 channel alarm annunciator having window size of 28x32 legends are composed on tracing paper, accept input from potential free contacts, power supply available 230 VAC or 24VDC or customer specify flashing rate 55 60 flash per minute, front key switch available for 'ACK' and 'TEST' as well same function is available on back panel for remote operation, additional power contact through relay is available for alarm signal to connect warning light hooter, siren etc.
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Converter Module

Converter is very compact 125 x 54 x 25 mm size with external 9V power supply is having following features:-LED indication for Power & Signal Status. Support High Speed Baud Rate upto 11200 BPS. Point to point multidrop. Provision for termination resistor (RS422 RS485 Receiver Side) Distance upto 1.2 km. 9600 BPS. Remote Ground Level Protection Built in High Speed Optocoupler for Signal Isolation 3500 VAC.
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Programmable Scanner

Series is PID Controller available in standard & profile PID Controllers Programmable : 8 Patterns 16 Step (128 Segment Programmable control curve) Standard & Profile Programmable, motorised valve (Position proportion type) with up to 3 Input signal & 2 control output 4 Alarm with optional communication : RS232 RS485 MODBUS
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Infrared Sensor

Provides Interfacing for many types of sensors elements, Capacitors, ROT, Thermistors, Resistive Bridge & Protection Meter, Non-contact Temp. Measurement, Rang - 100% Deg. C to +200 Deg.
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Adjustable Potentiometer

Connected to the VR 2nd pin of the outside potentiometer, Adjustable output 0100%, Please elimi -nate the shorted copper wire between E3 and E2 when using the outside potentiometer with VR. (210K ).
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Thyristor

Its state-of-art assembling techniques, is fully capable of producing multi-stage high power and large temperature difference Thermoelectric Cooling (TEC) modules. The cooling output of the module may reach tens of watts and its temperature difference is more than 90. Hui Mao is capable of supplying this kind of cooling module in large quantities. The success of the multi-stage TEC modules brings hope in developing a whole new generation of electric cooling refrigerator, wine cooler and air cooler. Our multi-stage thermoelectric cooling modules also can be used for cooling infrared photodetectors, deep chilling systems, X-ray detectors, etc.
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Alarm Relay

PID auto tuning, Multi range input: J K E R S & PT-100, Relay SSR 4-20 m ADC control output, Relay alarm output, Free range voltage 90265 VAC.50 Hz.
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Thyristor Controllers

Down-opened Panel, easy for fuse replacement, Build-in buffering output adjustment (SFS VR), adjusting range 122 seconds. (Only for the phase control product), Top & bottom shielding covers are designed for safety and fashion out looking, also easy for wiring installation, In case of 0.5 Hz sudden power losses, system output can be switched off immediately. Once the power is restored, the system will buffer the output to prevent the voltage surge for fuse burn-down, In cases of SCR overheating or fuse burn-down, the system output is stopped immediately. Once the malfunction is eliminated and power is restored, the system will buffer the output to prevent the fuse burn-down.
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Panel Mount Relay

Single and three Solid State Relays for panel mounting. 5 switching types: Zero Switching, Instant On, Peak Switch, Analog and DC Switching, up to 110A. SOLITRON - ready-to-mount Solid State Relays with integrated heatsink, one, two and three - pole output. SOLITRON Mini-compact 22.5mm Solid State Relays for DIN-rail mounting with integrated heatsink for applications up to 30A.
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Temperature Meter

No A-D Converter, TTL, CMOS CompatiblePull Output - Digital Analouge InterpretableDirectly Connectable to Data Input of Micro Processor, Easy Multiplexing for multiple sensor to Micro Processor, Range : 45 Deg. to 130 Deg.
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Analog Temperature Controller

Micro-processor base 4 channel PID Controller with universal input (Same input type for all PID) with 4 individual display & individual PID parameter setting with 4 control relay output & 4 soft alarm display universal power supply & compact 96 x 96 x 110mm design, available with RS 485 or direct 18 coloum printer interface as option.
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Front Panel

Microprocessor based Engineering Unit with Hi & Lo Alarm setpoint with Relay OP & Process Value (PV) Re-transmission. 420mA DC with 24V DC Transmitter Supply, All inputs & Range Programmable from Front Panel Switches. Microprocessor based Engineering Unit with Hi & Lo Alarm setpoint with Relay OP & Process Value (PV) Re-transmission. 420mA DC with 24V DC Transmitter Supply, All inputs & Range Programmable from Front Panel Switches.
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Smps Adapter

Miniature size, non-PFC, 5G vibration, 70 operation, 300VAC input surge, Suitable for critical applications, 2 outputs are isolated for RID series.
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Temperature Scanner

Series is PID Controller available in standard & profile PID Controllers Programmable : 8 Patterns 16 Step (128 Segment Programmable control curve) Standard & Profile Programmable, motorised valve (Position proportion type) with up to 3 Input signal & 2 control output 4 Alarm with optional communication : RS232 RS485 MODBUS
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Proportional Controllers

EC Series Controller are Microprocessor based controllers. Which have been designed with high accuracy input, various output option with good reliability and repeatability. EC Series used PID Algorithm to Temperature, Humidity, Pressure, Flow & PH as well other Process Controls. EC Series 'AT' Auto tuning function can calculate the optimized PID value for your control system to avoid manual setting in different process conditions.
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Thyristor Power Regulator

Independent adjustment of Max and BIAS, Down-opened Panel, easy for fuse replacement, VR of Max and SFS are installed in the front panel, easy for adjustment, Multi-LED display panel makes the operating condition clear, The auxiliary powers (AC1, AC2) are independently controlled for all models, Build-in buffering output adjustment (SFS VR), adjusting range 122 seconds. (Only for the phase control product), In case of 0.5 Hz sudden power losses, system output can be switched off immediately. Once the power is restored, the system will buffer the output to prevent the voltage surge for fuse burn-down.
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Humidity Indicators

Micro-processor based Humidity + Temperature Controller with sensor unit having auto tune PID control for temp. & on off control for refrigeration, dual set point hysterisis control for humidifier with password protection. RS 485 miniprinter interface as optional.
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Humidity Meter

Microprocessor Based Engineering Unit with RS485 modbus RTU Communication & 24V DC Transmitter Supply, All inputs & Range Programmable from Front Panel Switches. RTD Type PT-100CU-53, Analogue 0 10V DC 4 20mA DC, Dimensions 48 mm (H) x 96 mm (W) x 78 mm (D).
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