2-Wire Transmitter

CS20: Current Loop Supply

- Power Supply for 2-wire Transmitter

- Supplies 8 Current Loops

- Current Limiting

- Short Circuit Protected (Relay Alarm)


 
General Features and Benefits: 

Power Supply for 2-wire Transmitter

Supplies 8 Current Loops

Current Limiting

Short Circuit Protected (Relay Alarm)

            The Current Loop Supply CS20 supplies power to 2 - wire transmitters (8 Channels) and generates output signal 4 - 20 mA. Current limiting (to protect against transmitter wiring short circuits) is also provided.

Dimension (Unit: mm.)

Warranty: 
5 years
Specifications

Analog Input

Number of Channel:

8 Channels

Input Type:

Current (24 VDC Loop-Powered)

Input Range:

4 to 20 mA

Analog Output

Number of Channel:

8 Channels

Output Type:

Current

Output Range:

4 to 20 mA

Short Circuit Duration:

28 mA

Relay Output

Number of Channel:

1 Channel

Relay Type:

N.O.

Contact Rating:

3 A @ 250 VAC/24 VDC

Power Requirements

Power Supply:

24 VDC (500 mA OK.)

Environmental Limits

Operating Temperature:

0 to 55 °C

Operating Humidity:

5 to 95 %RH

Storage Temperature:

0 to 70 °C

Physical Characteristics

Dimension:

W62 x H142 x D50 mm.

Mounting:

DIN Rail

Warranty

Warranty Period:

5 Year

Ordering
Ordering Information:  
Example CS20
Packagelist

Package Checklist

1. CS20

Downloads
Datasheet: 
Group Order
2 Wire Transmitter: 
13.1

CS20: Current Loop Supply

- Power Supply for 2-wire Transmitter

- Supplies 8 Current Loops

- Current Limiting

- Short Circuit Protected (Relay Alarm)


 
General Features and Benefits: 

Power Supply for 2-wire Transmitter

Supplies 8 Current Loops

Current Limiting

Short Circuit Protected (Relay Alarm)

            The Current Loop Supply CS20 supplies power to 2 - wire transmitters (8 Channels) and generates output signal 4 - 20 mA. Current limiting (to protect against transmitter wiring short circuits) is also provided.

Dimension (Unit: mm.)

Warranty: 
5 years
Specifications

Analog Input

Number of Channel:

8 Channels

Input Type:

Current (24 VDC Loop-Powered)

Input Range:

4 to 20 mA

Analog Output

Number of Channel:

8 Channels

Output Type:

Current

Output Range:

4 to 20 mA

Short Circuit Duration:

28 mA

Relay Output

Number of Channel:

1 Channel

Relay Type:

N.O.

Contact Rating:

3 A @ 250 VAC/24 VDC

Power Requirements

Power Supply:

24 VDC (500 mA OK.)

Environmental Limits

Operating Temperature:

0 to 55 °C

Operating Humidity:

5 to 95 %RH

Storage Temperature:

0 to 70 °C

Physical Characteristics

Dimension:

W62 x H142 x D50 mm.

Mounting:

DIN Rail

Warranty

Warranty Period:

5 Year

Ordering
Ordering Information:  
Example CS20
Packagelist

Package Checklist

1. CS20

Downloads
Datasheet: 
Group Order
2 Wire Transmitter: 
13.1

HT130: Humidity & Temperature Transmitter

- Working Range (-)40 to 125 °C

- Precision Relative Humidity ± 3 % RH

- High Accuracy Temperature ± 0.4 °C

- Output 2 Wire 4-20 mA (Loop Powered)

General Features and Benefits: 

Working Range (-)40 to 125 °C

Precision Relative Humidity ± 3 % RH

High Accuracy Temperature ± 0.4 °C

Output 2 Wire 4-20 mA (Loop Powered)

            The Humidity & Temperature Transmitter HT130 fit the requirement of accurate monitor the humidity and temperature in ambient air. The transmitter continuously measures the ambient humidity and provides an accurate, linear 4-20 mA output signal.

Warranty: 
1 year
Specifications

Input

Number of Channel:

2 Channels

Input Type:

Humidity, Temperature

Input Range:

Humidity

Input Range: 0 to 100 % RH

Working Range: 5 to 95 % RH

Response Time: 1 sec.

Precision Relative: ± 3 % RH (Max.), 0 - 80 % RH

Temperature

Input Range: (-)40 to 125 °C

Working Range: (-)40 to 125 °C (Probe)

Accuracy: ± 0.4 °C (Max.), (-)10 to 85 °C

Analog Output

Number of Channel:

2 Channels

Output Type:

Current (2 Wire)

Output Range:

4 to 20 mA

Loop Powered:

12 to 35 VDC

Output Load Resistance:

Rload (Max.) = (Vsupply - 15)/0.02

Isolation Voltage:

500 Vrms, Between Output

Environmental Limits

Operating Temperature:

0 to 55 °C

Operating Humidity:

5 to 95 %RH

Storage Temperature:

0 to 70 °C

Physical Characteristics

Dimension:

W65 x H140 x D55 mm.

Probe/Cable Length:

215/800 mm.

Probe Diameter:

19 mm.

Warranty

Warranty Period:

1 Year

Ordering
Ordering Information:  
Example HT130
Packagelist

Package Checklist

1. HT130

Downloads
Group Order
2 Wire Transmitter: 
10

HT120: Humidity & Temperature Transmitter

- Precision Relative Humidity ± 3 % RH

- High Accuracy Temperature ± 0.4 °C

- Output 2 Wire 4-20 mA (Loop Powered)

General Features and Benefits: 

Precision Relative Humidity ± 3 % RH

High Accuracy Temperature ± 0.4 °C

Output 2 Wire 4-20 mA (Loop Powered)

            The Humidity & Temperature Transmitter HT120 fit the requirement of accurate monitor the humidity and temperature in ambient air. The transmitter continuously measures the ambient humidity and provides an accurate, linear 4-20 mA output signal.

Warranty: 
1 year
Specifications

Input

Number of Channel:

2 Channels

Input Type:

Humidity, Temperature

Input Range:

Humidity

Input Range: 0 to 100 % RH

Working Range: 5 to 95 % RH

Response Time: 1 sec.

Precision Relative: ± 3 % RH (Max.), 0 - 80 % RH

Temperature

Input Range: 0 to 100 °C

Working Range: 0 to 60 °C

Accuracy: ± 0.4 °C (Max.), (-)10 to 85 °C

Analog Output

Number of Channel:

2 Channels

Output Type:

Current (2-Wire)

Output Range:

4 to 20 mA

Loop Powered:

12 to 35 VDC

Output Load Resistance:

Rload (Max.) = (Vsupply - 15)/0.02

Isolation Voltage:

500 Vrms, Between Output

Environmental Limits

Operating Temperature:

0 to 55 °C

Operating Humidity:

5 to 95 %RH

Storage Temperature:

0 to 70 °C

Physical Characteristics

Dimension:

W65 x H140 x D55 mm.

Protection:

IP67

Warranty

Warranty Period:

1 Year

Ordering
Ordering Information:  
Example HT120
Packagelist

Package Checklist

1. HT120

Downloads
Group Order
2 Wire Transmitter: 
9

TR37: Temperature Transmitter

- High Accuracy Temperature ± 0.1 °C

- Temperature Range 0 - 100 °C

- Output 2 Wire 4-20 mA (Loop Power)

General Features and Benefits: 

High Accuracy Temperature ± 0.1 °C

Temperature Range 0 - 100 °C

Output 2 Wire 4-20 mA (Loop Power)

            Temperature Transmitter TR37 is device that converts temperature to electrical signal (4 – 20 mA) and send to signal receiver such as PLC, Recorder, Controller, indicator etc.

Warranty: 
1 year
Specifications

USB Interface

Compliance:

USB 1.1/2.0

Connector:

USB Mini Type B

Speed:

12 Mbps (Full - Speed USB)

Class:

CDC

Temperature Input

Number of Channel:

1 Channel

Input Type:

Temperature

Input Range:

0 to 100 °C

Working Range:

0 to 60 °C

Response Time:

1 sec.

Accuracy:

± 0.4 °C (Max.), (-)10 to 85 °C

Analog Output

Number of Channel:

1 Channel

Output Type:

Current (2-Wire)

Output Range:

4 to 20 mA

Loop Powered:

12 to 35 VDC

Output Load Resistance:

Rload (Max.) = (Vsupply - 15)/0.02

Environmental Limits

Operating Temperature:

0 to 55 °C

Operating Humidity:

5 to 95 %RH

Storage Temperature:

0 to 70 °C

Physical Characteristics

Dimension:

W75 x H125 x D50 mm.

Probe Length:

W80 mm.

Probe Diameter:

9.5 mm.

Warranty

Warranty Period:

1 Year

Ordering
Ordering Information:  
Example TR37
Packagelist

Package Checklist

1. TR37

Downloads
Group Order
2 Wire Transmitter: 
1

SI99: Signal Isolator

- Intrinsically safe isolation without
  power supply

- Eliminating ground-loop

- 2 channels available

- High accuracy and stability

General Features and Benefits: 

Intrinsically safe isolation without power supply

Eliminating ground-loop

2 channels available

High accuracy and stability

            The WISCO Signal Isolator SI99 is a WISCO Industries product designed to break the galvanic path between a transmitted signal source and a receiving device, such as a controller or recorder. The Signal Isolator solves the problem of transferred signal distortion due to ground potential differences. The Signal Isolator is highly effective in eliminating unreliable or inaccurate signal transfer by providing total current-to-current signal isolation. The Signal Isolator derives its operating potential from the existing input loop current and, therefore, does not require a dedicated power supply. The Signal Isolator is placed in series with the drive signal and provides and output current that is proportional to the input signal current.

            When a signal isolation device is installed it is important to consider the voltage drop or additional line resistance that will be placed in the system. Any additional load tends to reduce the line or drive potential and may exceed the source rating. The effect of voltage drop within the system must be calculated to ensure that drive capability is not exceeded. The Signal Isolator features a maximum fixed voltage drop of 2.5 VDC (4.2 V for 10 - 50 mA) which remains constant over the entire temperature range of 0 °C to 50 °C

            ลักษณะการใช้งานของ Signal Isolator

            1) ป้องกันการเกิด Ground Loops ซึ่งเป็นสาเหตุ ทำให้ค่าวัดไม่คงที่ หรือผิดจากความเป็นจริง

           2) ป้องกันความเสียหายที่จะเกิดขึ้นกับ PLC หรือ DCS เนื่องจากสัญญาณรบกวนที่เกิดขึ้นทางด้าน Transmitter เช่น ฟ้าผ่า หรือจาก A.C. Line โดยตัว Signal Isolator ทำหน้าที่เหมือนกำแพงที่ป้องกัน ไม่ให้สัญญาณเหล่านี้ ส่งเข้าไปทำความเสียหายให้ PLC หรือ DCS ได้

 

Warranty: 
5 years
Specifications

Analog Input

Number of channel:

2 Channels

Input type:

Current

Input range:

4 to 20 mA

10 to 50 mA

Input impedance:

130 + Load resistance (4 to 20 mA)

85 + Load resistance (10 to 50 mA)

Analog Output

Number of channel:

2 Channels (Isolated)

Output type:

Current

Output range:

4 to 20 mA, 10 to 50 mA.

Current Limitation:

Max 250 (2.5 VDC. at 20 mA)

Isolation voltage:

500 VAC.

Linearity:

Better then + 0.2% of span

Environmental Limits

Operating Temperature:

0 to 55 °C

Operating Humidity:

5 to 95 %RH

Storage Temperature:

0 to 70 °C

Physical Characteristics

Dimension:

W 50 x H 70 x D 130 mm.

Mounting:

Wall or DIN rail

Construction:

Plug - in 11 pins socket

Warranty

Warranty Period:

5 year

Ordering
Ordering Information:  
Example SI99

 

Packagelist

Package Checklist

1. SI99

Downloads
Group Order
2 Wire Transmitter: 
14

SC23: 2-Wire Programmable Transmitter

- Space Saving 12.5 mm. Width

- 1 Input, 1 Output

- Programmable Input

- Isolated Input/Output and Power Supply

- 2-Wire Transmitter Output 4 - 20 mA

- High Accuracy 16 Bits ADC.

- Easy to Install

- Din Rail Mounting

General Features and Benefits: 

Space Saving 12.5 mm. Width

1 Input, 1 Output

Programmable Input

Output 2 Wire 4-20 mA (Loop Power)

Isolated Input/Output and Power Supply

            2-Wire Programmable Transmitter SC23 is device that converts Thermocouple, RTD, Ohm, V, mV, mA TO 4 - 20 mA 2-Wire Transmitter. Its Input is programmable and completely isolate from Output

Warranty: 
5 years
Specifications

USB (Config Cable)

Compliance:

USB 1.1/2.0

Connector:

USB Type Mini-A (Female)

USB Baud Rate:

High Speed Device

USB Power:

Low Power Device (Draws < 100 mA)

Analog Input

Number of Channel:

1 Channel

ADC Resolution:

16 Bits

Input Type:

Programmable Input

Input Range:

Thermocouple (R, S, K, E, J, T, B)

RTD (Cu10, PT100, PT1000)

Resistance (0 to 600 Ω, 0 to 1.2 KΩ, 0 to 4 KΩ)

Voltage: mVDC (0 to 80, 0 to 150)

Voltage: VDC (0 to 1, 0 to 5, 0 to 10, 0 to 15, 0 to 30)

Current (4 to 20 mA, 0 to 20 mA, 0 to 40mA)

Analog Output

Number of Channel:

1 Channel

Output Type:

Current (2-Wire)

Output Range:

4 To 20 mA

Loop Power:

15 to 35 VDC

Output Load Resistance:

Rload = (Vsupply - 15)/0.02

Isolation Voltage:

500 VAC, Between Input Output and Power Supply

Environmental Limits

Operating Temperature:

0 to 55 °C

Operating Humidity:

5 to 95 %RH

Storage Temperature:

0 to 70 °C

Physical Characteristics

Dimension:

W12.5 X H100 X D113 mm.

Mounting:

DIN Rail

Warranty

Warranty Period:

5 year

Ordering
Ordering Information:   
Example SC23
Packagelist

Package Checklist

1. SC23

2. Cable Config

3. Manual

4. CD Software

Downloads
Group Order
2 Wire Transmitter: 
0.1

LT20: Level Transmitter

- วัดระดับของเหลว

- Output 4-20 mA

- Easy Install

General Features and Benefits: 

วัดระดับของเหลว

Output 4-20 mA

Easy Install

            Level Transmitter LT20 is equipment for measuring level of liquid according to pressure theory, at different level will have different pressure also it will generate different Output 4-20 mA. It is mainly measure level of water such as water in tank, well, underground water, level of water in the river and etc.  it is easy installation just drop LT20 until it get to lowest level. In case of measuring liquid is not water calculation would be needed.

            Level Range x Specific Gravity = level range @ 20 mA.

            For Example LT20 is Level Range 10 mH2o measure Ethanol that has Specific Gravity 0.78 @20 mA therefore Ethanol = 10 x 0.78 = 7.812 m.

In mm.

Red +

Green -


Measurement and control of liquid level

Groundwater Level Measurement

Wiring Indicator Wisco

Measure the water level in the river.

Specifications

Level Input

Level range:

5 m, 10 m H20

Over Pressure:

200 % of Full Scale

Analog Output

Output type:

Current (2 Wire, Loop Power)

Output range:

4 to 20 mA

Power Supply:

12 to 24 VDC

Accuracy:

± 0.5 % of Full Scale

Output Impedance:

Max. 600 Ω at 24 VDC (50 Ω/V above 12 VDC)

Environmental Limits

Medium Temperature:

0 to 60 °C

Storage Temperature:

(-)40 to 125 °C

Physical Characteristics

Protection:

IP68

Cable Length:

Level Range +2 m.

Cable Characteristics and Application

Cable Material:

Copper Core PE Insulated PUR Jacket Cable

Ventilated Tube Material:

Polypropylene

Application:

Special Ventilated Cable for Submersible Level Transmitter

Warranty

Warranty Period:

1 Year

Ordering
Ordering Information: Specify Level Range
Example LT20/0-10m.
Packagelist

Package Checklist

1. LT20

Downloads
Group Order
2 Wire Transmitter: 
8.2

SC25: 2-Wire Programmable Transmitter

- Space Saving 12.5 mm. Width

- 1 Input, 2 Output

- Programmable Input

- Isolated Input/Output and Power Supply

- 2-Wire Transmitter Output 4 - 20 mA

- High Accuracy 16 Bits ADC.

- Easy to Install

- Din Rail Mounting

 

General Features and Benefits: 

Space Saving 12.5 mm. Width

1 Input, 2 Output

Programmable Input

Output 2 Wire 4-20 mA (Loop Power)

Isolated Input/Output and Power Supply

            2-Wire Programmable Transmitter SC25 เป็นอุปกรณ์แปลงสัญญาณ Thermocouple, RTD, Ohm, V, mV, mA เป็นสัญญาณ 4 - 20 mA 2-Wire Transmitter โดย Input และ Output Isolate จากกัน

Warranty: 
5 years
Specifications

USB (Config Cable)

Compliance:

USB 1.1/2.0

Connector:

USB Type Mini-A (Female)

USB Baud Rate:

High Speed Device

USB Power:

Low Power Device (Draws < 100 mA)

Analog Input

Number of Channel:

1 Channel

ADC Resolution:

16 Bits

Input Type:

Programmable Input

Input Range:

Thermocouple (R, S, K, E, J, T, B)

RTD (Cu10, PT100, PT1000)

Resistance (0 to 600 Ω, 0 to 1.2 KΩ, 0 to 4 KΩ)

Voltage: mVDC (0 to 80, 0 to 150)

Voltage: VDC (0 to 1, 0 to 5, 0 to 10, 0 to 15, 0 to 30)

Current (4 to 20 mA, 0 to 20 mA, 0 to 40mA)

Analog Output

Number of Channel:

2 Channel

Output Type:

Current (2-Wire)

Output Range:

4 To 20 mA

Loop Power:

15 to 35 VDC

Output Load Resistance:

Rload = (Vsupply - 15)/0.02

Isolation Voltage:

500 VAC, Between Input Output and Power Supply

Environmental Limits

Operating Temperature:

0 to 55 °C

Operating Humidity:

5 to 95 %RH

Storage Temperature:

0 to 70 °C

Physical Characteristics

Dimension:

W12.5 X H100 X D113 mm.

Mounting:

DIN Rail

Warranty

Warranty Period:

5 year

Ordering
Ordering Information:   
Example SC25
Packagelist

Package Checklist

1. SC25

2. Cable Config

3. Manual

4. CD Software

Downloads
Datasheet: 
Group Order
2 Wire Transmitter: 
0.3

SC24: 2-Wire Programmable Transmitter

- 2 Input, 2 Output

- Programmable Input

- Isolated Input/Output and Power Supply

- 2-Wire Transmitter Output 4 - 20 mA

- High Accuracy 16 Bits ADC.

- Space Saving

- Easy to Install

- Din Rail Mounting

 

General Features and Benefits: 

2 Input, 2 Output

Programmable Input

Output 2 Wire 4-20 mA (Loop Power)

Isolated Input/Output and Power Supply

            2-Wire Programmable Transmitter SC24 เป็นอุปกรณ์แปลงสัญญาณ Thermocouple, RTD, Ohm, V, mV, mA เป็นสัญญาณ 4 - 20 mA 2-Wire Transmitter โดย Input และ Output Isolate จากกัน

Warranty: 
5 years
Specifications

USB (Config Cable)

Compliance:

USB 1.1/2.0

Connector:

USB Type Mini-A (Female)

USB Baud Rate:

High Speed Device

USB Power:

Low Power Device (Draws < 100 mA)

Analog Input

Number of Channel:

2 Channels

ADC Resolution:

16 Bits

Input Type:

Programmable Input

Input Range:

Thermocouple: R, S, K, E, J, T, B

RTD: Cu10, PT100, PT1000

Resistance: 0 to 600 Ω, 0 to 1.2 KΩ, 0 to 4 KΩ

Voltage (mVDC): 0 to 80, 0 to 150

Voltage (VDC): 0 to 1, 0 to 5, 0 to 10, 0 to 15, 0 to 30

Current (mA): 4 to 20, 0 to 20, 0 to 40

Analog Output

Number of Channel:

2 Channel

Output Type:

Current (2-Wire)

Output Range:

4 To 20 mA

Loop Power:

15 to 35 VDC

Output Load Resistance:

Rload = (Vsupply - 15)/0.02

Isolation Voltage:

500 VAC, Between Input Output and Power Supply

Environmental Limits

Operating Temperature:

0 to 55 °C

Operating Humidity:

5 to 95 %RH

Storage Temperature:

0 to 70 °C

Physical Characteristics

Dimension:

W20 X H100 X D118 mm.

Mounting:

DIN Rail

Warranty

Warranty Period:

5 year

Ordering
Ordering Information:   
Example SC24
Packagelist

Package Checklist

1. SC24

2. Cable Config

3. Manual

4. CD Software

Downloads
Datasheet: 
Group Order
2 Wire Transmitter: 
0.2
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