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温度变送器
商品名称】温度变送器 ThermoTrans® A 20210 KNICK
货号
品牌】KINCK
价格】¥0
 
 

详细说明 温度变送器 ThermoTrans® A 20210 KNICK

ThermoTrans® A 20210
Standard transmitters for temperature measurement with resistance thermometers and thermocouples - in a 6-mm housing

 
Product description
 
Image Typical applications
 
Facts
 
Product Line
 
Dimension drawings
 
Schematic diagram
 
Specifications
 
Error Signaling
 

 

The Task

In virtually all areas of industry temperatures are continuously measured and often used as reference input for closed-loop control systems, monitoring systems, safety shutdown systems, or for similar critical jobs. Here, normally the highest demands are placed on function, accuracy, flexibility and electrical safety.

Different sensors are used depending on the measuring task. They provide a raw signal which is prepared, linearized, and standardized for further processing using a temperature transmitter.


The Problem

There is a very wide range of standardized and commercial temperature sensors. The large number of sensors, connection variants, individual temperature ranges, different supply voltages, and required output signals call for very variable transmitters that can be optimally suited to the different conditions. However, the required flexibility should not be paid for with complex operation. Rather, it is desirable that adjustments can easily be made on the site. High performance should not result in increased susceptibility – high reliability and availability are key requirements.


The Solution

The flexible ThermoTrans® A 20210 temperature transmitters provide connection possibilities for most of the common thermocouples and resistance thermometers. They can be flexibly adapted to the respective measuring task using DIP and rotary decoding switches. 3-port isolation with protective separation up to 300 V AC/DC according to EN 61140 ensures optimum protection of personnel and equipment as well as unaltered transmission of measuring signals. The ThermoTrans® A 20210 offer maximum performance in the smallest of spaces.

Resistance thermometers can be operated either in 2-, 3-, or 4-wire configuration. The configuration type is automatically recognized, adjustment is not required. Thermocouples can be detected with internal or external reference junction compensation.

Input voltage signals up to +/- 1000 mV are converted into 0/4 to 20 mA or 0 to 10 V standard signals. This enables low-cost implementation of current measurements using shunt resistors, for example.

The devices meet the requirements of type of protection "n". This means they can be installed and used in Zone 2 hazardous areas in the EC, the USA, and in Canada. Thanks to their approval to Class 1, Division 2 (UL 1604), they can also be used according to the traditional North American classification system.

Special measuring tasks can be solved with ThermoTrans® devices that Knick configures according to individual specifications. Fixed range models without switch are used, for example, when manipulations or mix-up are to be excluded.


The Housing

The modular housing - 6 mm - is stingy with enclosure space and allows high component density. DIN-rail bus connectors inserted in the mounting rail facilitate the power supply connection if necessary.

Application examples



 



 



 

 
The Facts
 
- Flexible application with common temperature sensors: Pt100, Pt1000, Ni100, thermocouples type J and K
- Intuitive configuration: easy, without tools, using 4 rotary and 8 DIP switches
- Calibrated range selection without complicated adjustments
- Automatic recognition of the sensor connection (2-, 3-, or 4-wire)
- Protective separation according to EN 61140 - protection of the maintenance staff and the subsequent devices against non-permitted high voltages up to 300 V AC/DC
- High accuracy due to innovative circuit design
- Minimum space consumption in the enclosure: only 6 mm wide modular housing - more transmitters per meter of mounting rail
- Low-cost assembly - quick mounting, convenient connection of power supply through DIN-rail bus connectors
- 5-year warranty

Product Line
                                   
Temperature Transmitter, Adjustable                                  

 

 
                               
ThermoTrans® A 20210 Order No. A 20210 P0
 

 
Temperature Transmitter, Fixed Settings                                  

 

 
                               
ThermoTrans® A 20210 Order-No. A 20210 P0/

 

 
Input / Type of sensor Pt100 (-200 ... +850 °C) P
  Pt1000 (-200 ... +850 °C) Q
  Ni100 (-60 ... +180 °C) N
  TC / J (-210 ... +1200 °C) J
  TC / K (-200 ... +1372 °C) K
  TC / J (-210 ... +1200 °C), external cold junction compensation (Pt100) X
  TC / K (-200 ... +1372 °C), external cold junction compensation (Pt100) Y
  U (-1000 mV ... +1000 mV) U
  others S

 

 
Measurement start value Algebraic sign + or -   x
  4-digit numerical value (°C / mV)     x x x x

 

 
Measurement end value Algebraic sign + or -             x
  4-digit numerical value (°C / mV)               x x x x

 

 
Output 0 ... 20 mA                       A
  4 ... 20 mA                       B
  0 ... 10 V                       C
  0 ... 5 V                       D

 

 
Further customer specific settings Without
  According to details                         n n n n

 

 
Example for fixed settings type: Pt1000 / -50°C ... +150°C / 4 ... 20mA
  Order No. A 20210 P0/ Q - 0 0 5 0 + 0 1 5 0 B
 
Accessories                           Order No.

 

 
DIN rail bus connector ZU 0628 Power supply routing for two A 20XXX P0 and two P 32XXX P0 respectively                         ZU 0628

 

 
IsoPower® A 20900 Power supply 24 V DC, 1 A                         A 20900 H4

 

 
DIN rail bus connector ZU 0678 Extraction of supply voltage (A 20900),                         ZU 0678
  transmission to DIN rail bus connector ZU 0628

 

 
Input terminal ZU 0677 Supply of 24 V DC auxiliary power to                         ZU 0677
  DIN rail bus connector ZU 0628
 

 
Dimension drawings and terminal assignments

 
Schematic diagram



 

RTDs
Input data Type of sensor Standard Measuring range

 

 

 

 
Input Pt100 DIN 60751 -200 ... +850 °C
  Pt1000 DIN 60751 -200 ... +850 °C
  Ni100 DIN 43760 -60 ... +180 °C

 

 
Connection 2-, 3- or 4-wire (automatically recognized)
  signaled by a yellow LED

 

 
Range of resistance incl. cable resistance 0 ... 5 kohms

 

 
Max. cable resistance 100 ohms

 

 
Supply current 200 µA, 400 µA or 0 ... 500 µA

 

 
Wire monitoring Open circuit detection

 

 
Input error limits Resistance <5 kohms: ± (50 mohms + 0.05 % meas. val.) for ranges > 15 ohms
  Resistance >5 kohms: ± (1 ohm + 0.05 % meas. val.) for ranges > 50 ohms

 

 
Input temperature coefficient <50 ppm/K of selected end value
  (medium temperature coefficient in the allowed temperature range, reference temperature 23 °C)
 
Thermo couples
Input data Type of sensor Standard Measuring range

 

 

 
Input Type J DIN 60584-1 –210 … +1200 °C
  Type K DIN 60584-1 –200 … +1372 °C

 

 
Input resistance >10 Mohms

 

 
Max. cable resistance 1 kohm

 

 
Wire monitoring Open circuit detection

 

 
Input error limits ± (10 µV + 0.05 % meas. val.) for spans >2 mV

 

 
Input temperature coefficient <50 ppm/K of selected end value
  (medium temperature coefficient in the allowed temperature range, reference temperature 23 °C)

 

 
Cold junction compensation Internal (Pt100)
  external (Pt100), fixed value or uncompensated

 

 
Error of internal cold junction compensation <1.5 K

 

 
Error of external cold junction compensation < 80 mohms + 0.1 % meas. val. by Pt100 for Tcomp= 0 ... 80 °C
 
Shunt voltages
Input data

 

 
Input -1000 ... 1000 mV unipolar/bipolar

 

 
Input resistance >10 Mohms

 

 
Input error limits ± (200 µV + 0.05 % meas. val.) for spans >50 mV

 

 
Wire monitoring Open circuit detection

 

 
Input temperature coefficient <50 ppm/K of selected end value
  (medium temperature coefficient in the allowed temperature range, reference temperature 23 °C)

 

 
Overload 5 V across all inputs
 
Output data

 

 
Outputs 0 ... 20 mA, calibrated switching
  4 ... 20 mA, (default 4 ... 20 mA)
  0 ... 5 V,
  0 ... 10 V

 

 
Control range 0 ... approx. 102.5 % span at 0 ... 20 mA, 0 ... 10V and 0 ... 5 V outputs
  -1.25 ... approx. 102.5 % span at 4 ... 20 mA output

 

 
Resolution 16 bit

 

 

 
Load Current output: =10 V (=500 ohms at 20 mA)
  Voltage output: =1 mA (=10 kohms at 10 V)

 

 

 
Output error limits Current output: ± (10 µA + 0.05 % meas. val.)
  Voltage output: ± (5 mV + 0.05 % meas. val.)

 

 

 
Residual ripple <10 mVrms

 

 
Output temperature coefficient <50 ppm/K of selected end value
  (medium temperature coefficient in the allowed temperature range, reference temperature 23 °C)

 

 
Error signaling 0 ... 20 mA Output: I =0 mA or =21 mA
  4 ... 20 mA Output: I =3,6 mA or =21 mA
  0 ... 5 V and 0 ... 10 V Output: V= 0 V or V=5.25 V and V=10.5 V respectively
  by output signal and red LED for
  out-of-range conditions,
  incorrect parameter setting,
  sensor short-circuit and open circuit
  output error load
  other device errors. See also "Error signaling".
 
Transmission behavior

 

 
Characteristic Linear rising / falling;

 

 
Measuring rate Approx. 3 / s *)
 
Display

 

 
Green LED Power supply

 

 
Yellow LED Type of connection

 

 
Red LED Maintenance request or device breakdown
 
Power supply

 

 
Power supply 24 V DC (-20 %, +25 %), approx. 1.2 W
  Power supply can be routed from one device to another via DIN rail bus-connectors.
 
 
Isolation

 

 
Galvanic isolation 3-port isolation between input, output, and power supply

 

 
Test voltage 2.5 kV AC, 50 Hz: input against output against power supply

 

 
Working voltage Up to 300 V AC/DC across all circuits at overvoltage category II and pollution degree 2 to EN 61010-1
(basic insulation) For applications with high working voltages, you should ensure there is sufficient spacing or isolation from neighboring devices and protection against electric shocks.

 

 
Protection against electric Protective separation to EN 61140 by reinforced insulation to EN 61010-1.
shock Working voltage up to 300 V AC/DC across all circuits at overvoltage category II and pollution degree 2.
  For applications with high working voltages, you should ensure there is sufficient spacing or isolation from neighboring devices and protection against electric shocks.
 
Standards and approvals

 

 
Explosion protection ATEX Zone 2 (EN 60079-15)
  Class 1, Div 2 / Zone 2 (UL 1604)

 

 

 
EMC Product standard: EN 61326
  Emitted interference: Class B
  Immunity to interference 1): Industry
  EMC requirements for devices with safety-related functions IEC 61326-3

 

 
cURus File No. 220033
  Standards: UL 508 and CAN/CSA 22.2 No. 14-95
 
Other data

 

 
Ambient temperature Operation: 0 ... +55 °C when placed without spacing
    0 ... +65 °C with spacings = 6 mm
  Transport and storage: -25 ... +85 °C

 

 
Ambient conditions Stationary use, weatherproof
  Relative humidity: 5 ... 95 %, no condensation
  Air pressure: 70 ... 106 kPa
  Water or wind-driven precipitation (rain, snow, hail etc.) excluded

 

 
Design Modular housing with screw terminals, 6.2 mm wide
  for further dimensions and mounting profile see "Dimension drawings"

 

 
Protection class Terminals IP20, Housing IP40

 

 
Mounting For 35 mm top-hat rail to EN 60715

 

 
Weight Approx. 60 g
 
 
*) For thermocouples with external cold junction compensation: approx. 2 / s
1) Slight deviations are possible while there is interference
 

 
Error Signaling
 
No. Error Signaling configuration 1) Output

 

 

 

 
      4 ... 20 mA 0 ... 20 mA 0 ... 5 V 0 ... 10 V
     

 

 

 

 
0 No error not self-holding - - - -
1 Value below range limit not self-holding 3.6 0 0 0
2 Value above range limit not self-holding 21 21 5.25 10.5
3 Sensor short-circuit not self-holding 21 21 5.25 10.5
4 Sensor open not self-holding 21 21 5.25 10.5
5 - - - - - -
6 Output load error not self-holding 3.6 0 0 0
7 Identification of connection not self-holding 21 21 5.25 10.5
8 Unintentional adjustment of switches not self-holding 21 21 5.25 10.5
9 Adjustment error not self-holding 21 21 5.25 10.5
10 Device error self-holding 3.6 0 0 0
 
 
1) In signaling configuration "self-holding" the error signal maintains after the error cause has ended.
    Error signaling can be reset by a re-start (auxiliary power ON/OFF or via IrDA® interface).