Hefei Wanke Intelligent Technology Co., Ltd
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WNK6XT Multi channel Temperature Transmitter
WNK6XT Multi channel Temperature Transmitter
Product details



The WNK6XT intelligent temperature transmitter is a high-performance product in the temperature series instruments of Anhui Wanke Company. It converts signals from thermal resistors, resistive sensors, thermocouples, or voltage sensors into standard signals.

The transmitter adopts dedicated integrated circuit digital technology to achieve good accuracy and signal consistency. Each transmitter undergoes ambient temperature characterization at the factory to ensure high accuracy and minimal drift over a wide range of operating temperatures.

The transmitter is easy to install on site and has multiple temperature inputs. The sturdy casing comes with a globally compatible conduit connection port, and the cast aluminum casing ensures the use of the transmitter in hazardous areas.




·Numerical accuracy: ±0.01℃,Pt100Thermal resistance input

· 24Position model-The digital converter is equipped with environmental temperature compensation and has outstanding measurement performance throughout the entire working range

·Transmitter-The matching characteristics of the sensor are easy to use, which can reduce the interchangeability error of the thermistor sensor and improve the measurement accuracy75%

·The dual chamber structure shell ensures excellent reliability of the transmitter in high temperature, corrosive, and RF interference environments

·Integrated transient protector to prevent damage to the transmitter caused by transient currents introduced by the circuit

·Thermal resistance electromotive force correction - detecting and eliminating electromotive force errors. This error is caused by a small voltage signal generated during thermal resistance measurement

·Independent parallel alarm circuit, which can provide an independent and backup alarm output in case of circuit board or software failure

·Self calibration: By comparing dynamic measurements with highly stable and accurate internal benchmarks, the analog-to-digital conversion circuit automatically updates each temperaturePerform self calibration



·The factory sets the output mode according to user requirements, making installation convenient

·Integrated LCD meter head

·Special sensor input capability allows users to input special sensor parameters into the transmitter and adjust the temperature curve inside the transmitter

·HARTProtocol type transmitters can be used withHARTHandheld device,AMSEquipment management system or adoptionHARTProtocol based system for digital communication

·PROFIBUS-PABus protocol transmitters can be used withPDMFDTAMSDevice management system for communication and device management

·FFBus protocol transmitters can be used withFDTAMSDevice management system for communication and device management



·Ready to use - provides a complete set of temperature measurement components, including transmitters, sensors, extensions, and thermal sleeves, all of which have been calibrated and connected at the factoryOnce the wiring and configuration are complete, it can be directly installed and used during the process



1. Input

1.1 Thermal resistance

Measure variable temperature

The range depends on the type of sensor connected (specifying the range of the sensor)

There are 4 range options for sensor types

· PT100

· PT1000

· CU50

· CU100

Voltage measurement temperature - linear

Sensor current ≤ 0.3mA

1.2 Resistance sensor

Measure variable Ohmic impedance

There are 4 range options for the measurement range

·0... 100 ohms

·0... 260 ohms

·0... 390 ohms

·0... 3900 ohms

Sensor type: linear resistance sensor, two, three or four wire system

Voltage Measurement Resistance - Linear

Sensor current ≤ 0.3mA

1.3 Thermocouple

Measure variable temperature

The range depends on the type of sensor connected (specifying the range of the sensor)

Sensor type: thermocouple

·S-type Pt10Rh Pt (DIN IEC 584)

·R-type Pt13Rh Pt (DIN IEC 584)

·B-type Pt30Rh Pt6Rh (DIN IEC 584)

·K-type NiCr Ni (DIN IEC 584)

·N-type NiCrSi NiSi (BS 4937 Part 2)

·E-type NiCr CuNi (DIN IEC 584)

·J-type Fe CuNi (DIN IEC 584)

·T-shaped Fe CuNi (DIN 43710)

Voltage measurement temperature - linear

Explanation of Cold End Compensation Forms

·No compensation (dual channel)

·Internal acquisition, with built-in or external sensors: When using external sensors, the manufacturer's PA parameters must be set (default is for built-in sensors)

·The externally specified cold end temperature can be set to a fixed value

1.4 millivolt sensor

Measure variable DC voltage

There are 4 range options for the measurement range

· -20...20mV

· -50...50mV

· -75...75mV

· -750...750mV

Sensor type: Linear mV sensor

Voltage measurement - Linear

Input resistance ≥ 1M Ω

Sensor current 180 μ A



2. Output

Output signal 4-20mA/HART or digital bus signal

Bus voltage · 9-32V (without Ex protection)

·9~24V intrinsic safety type (see Ex certificate)

Effective internal inductance Li < 10mH

Effective internal capacitance Ci < 5nF

communication

·The first and second layers of PA communication follow PROFIBUS-PA, and the transmission technology follows IEC1158-2; Passive function; The 7th layer (protocol layer) follows the PROFIBUS-DP and EN50170 standards, with extended PROFIBUS functionality (all data is non periodic, measurement values and status are periodic)

·DP communication H1 bus technology, transmission technology according to IEC61158-2

·Equipment Style PROFIBUS-PA Style B, Row Rule 3.01

·Device address 126 (set at the time of shipment)

Temperature unit ℃ can be parameterized



3. Measurement accuracy

impact

·Internal cold end compensation error < 0.25 ℃± 0.1%/10 ℃

·Temperature drift ± 0.05%/10 ℃ full-scale range, 0.1% between -10 and 60 ℃

·The impact of power supply on the measurement range is less than 0.005%/V of the full-scale range

·Long term drift<0.1/year


4. Rated conditions

permissive temperature

·Environmental temperature

- T4 -40...85℃

-Intrinsic safety operation (T6) -40... 60 ℃

·Storage temperature -40... 95 ℃

Relative humidity ≤ 98%, condensation allowed

Electromagnetic compatibility complies with EN 61 326



5. Power supply

Power supply voltage bus feeding 9-45V (9-24V, Ex type)

Bus devices consume a current of 13.5mA

Electrical isolation input and output are both electrically isolated


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