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Inquiry about the product Transmitter LKM 154
Transmitter LKM 154

Programmable connection head transmitter for Pt100/Pt1000 and thermocouples with a variety of output signals an an LCD Display

 

The LKM 154 is a free programmable transmitter for Pt100 / Pt1000 and various thermocouples with LCD display mounted in a special connection head. It converts the temperature signal linearily with high accuracy into a standard current signal or an output voltage. A battery version without an output signal is also available. The LKM 154 can be integrated with temperature sensors using an M24x1,5 connection thread to form a complete measurement module. For the range an adjustment capability of at least 20°C is required for the span. The transmitter can be configured by the customer with a separately available programming set. No readjustment is required. The output signals are also freely scalable. Via this programming set it is also possible to acquire the measurement data digitally with a PC. The different versions are identified by an additional letter.

 

* programmable

Protection classification

IP 65 according DIN 60529
Circuitry

2 wire circuit

3 wire circuit

4 wire circuit
Input

Thermocouple type K

Thermocouple type T

Thermocouple type J

Thermocouple type S

Pt100

Pt1000

on inquiry
Output

0 ... 10V

4 ... 20mA
Range

domain of definition of sensor, minimal 20°C *
Zero point

as defined for the sensor*
Resolution

0.1°C/1°C° *
Display

LCD 5-digit, 10mm character height, rotatable
Test current

0.2mA
Sensor fracture

approx. 11V for voltage output

approx. 21 mA for current loop
Accuracy

0.2°C±1Digit for resistance sensors

0.5°C for thermocouples
Power supply

3.3V Lithium (CR123)
Supply voltage

24VDC ±30% reverse protection
Weight

approx. 290g
Construction

U-Display and output signal 0...10V, serial interface (external voltage supply 24V)

I-Display and output signal 4...20 mA, serial interface (voltage supply from loop)

B-Display (voltage supply 9V battery, shutdown after 5 min.)
Connection head

BUZH
Measuring range

Pt100/Pt1000 -200°C ... +835°C
Shorted Sensor

at resistance sensors approx. 0V for voltage output and approx 3 mA for current loop;

temperature value on fracture point for thermocouples
Permissible ripple

< 10 %
Temperature drift

< 150 ppm/°C
Operating temperature range

0°C ...+60°C
Mounting

Thread M24x1.5
Sampling rate

>0.25/s*
Battery operation time

>1000h on automatic switch off after 3 min *
Features

Maximum. Minimum, Hold
Cold-junction compensation

internal
Interface

USB*