DT1400 Limit Switch

Product features

  • 0-20 mA / 4-20 mA / 0-10 V / 2-10 V / 0-5 V inputs
  • 2 / 4 × limit-relay outputs
  • Process indicator function
  • 5 digit LED display, 7.6 mm character height
  • Menu based configuration
  • 0-20 mA / 4-20 mA isolated output
  • Transmitter supply
  • 18-40 V DC / 14-29 V AC power supply or 140-250 V AC / 180-250 V DC mains
  • TS-35 rail mounting, 45 mm width

Type designation

DT1400 limit switches type designation

Product description

The DT1400 … Limit switches compare the 0-20 mA / 4-20 mA / 0-10 V / 2-10 V / 0-5 V output signal with the set values.
When the output signal exceed one of the set values the instrument activates the corresponding SPDT relay contact.
The DT1400 … Limit switch is also a process indicator and enable linear process variable to be displayed in engineering unit on its 5 digit LED display.
The instrument is available with the following output options (2 limit-relays are standard, beyond that only one option at the same time):

  • +2 normally open relay contacts (SPST) for limit switching or for simple control tasks. (In this case 4 limit-relay contacts are in the DT1400.)
  • 0-20 mA / 4-20 mA galvanic isolated, scalable, active or passive current output.
  • 15 VDC, 30 mA, galvanic isolated power supply for two wire 4-20 mA transmitter.

The functional parameters can be set by push-buttons on the front panel of the device, through a simple menu system: input selection, averaging of input signals, scaling, display frequency, limit values, limit operating modes, histeresis, scaling the analogue output, etc. The settings are protected by a two-level password against unauthorised manipulation.
The DT1400 … has two power supply versions:

  • 18-40 V DC / 14-29 V AC (DT1400 …)
  • 140-250 V AC / 180-250 V DC (DT1400 … PS).

Technical specifications

Safety data:
The connection terminals of the supply voltages are isolated from each other, the isolation is in compliance with the standard EN 61010-1, taking into consideration the following:
Pollution level:2
Measurement category:II
Input parameters:
Input signal:DC current or DC voltage
Measurement range:0-20 mA / 4-20 mA / 0-10 V / 2-10 V / 0-5 V
Overrange:±50 mA (current input), ±200 V (voltage input)
Sampling:12 measurement / sec.
Number of averaged samples:1 / 2 / 4 / 8 / 16 / 32 / 64 (selectable)
Error of displayed value:< 0.02% (Ta = 23 °C ±2 °C)
Temperature coefficient:±40 ppm / °C (max.)
Output parameters:
Analogue output (optional):
Output type:1 active or passive DC current (scalable)
Range:0-20 mA / 4-20 mA
Burden:500 ohm (max.)
Error:< 0.03% @ Ta = 23 °C ±2 °C
Limit outputs:
Outputs:2 NO SPST relays (standard), + 2 NO SPST relays (optional)
Contact rating:30 VDC, 3 ADC / 240 VAC, 3 AAC
Transmitter supply (optional):
Transmitter supply:15 VDC, 30 mA
Display:
Display:5 digit (+values), 4 digit (-values), negative sign, decimal point
4 limit output LED
Display unit:5 digit LED, 7.6 mm character height
Display refresh rate:0.1 / 0.3 / 0.5 / 1.0 / 1.5 / 2.0 sec. (adjustable)
Manual controls:
Manual controls:3 membrane push-buttons on the front cover
Power supply:
Power supply:18-40 V DC / 14-29 V AC (DT1400 ...)
140-250 V AC / 180-250 V DC (DT1400 ... PS)
Consumption:3.5 W / 3 VA
Ambient conditions:
Operating temperature range:0-60 °C (-20 - +60 °C for customer request)
Relative humidity:90% (max., non-condensing)
Place of installation:cabinet
Mounting position:vertical (horizontal rail position)
Electromagnetic compatibility (EMC):
accordance with the standard EN 61326
Immunity:industrial area
Noise emission:Group 1, Class B
General data:
Housing:terminal assembly box, rail mounting on TS-35 rail,
material: polyamide PA6.6
Connection:screw terminal
Connection cable:0.25-2.5 mm2
Dimensions:45 × 99 × 115 mm (width × height × depth)
Weight:0.2 kg
Protection:IP 20
Detailed information see in operating instructions. The Manufacturer maintans the right to change the technical data!

Downloads

Leaflet of productOperating Instruction

Application examples

Analog output option

DT1400 limit switches application example 1

 

RL4 option

DT1400 limit switches application example 2

 

TS option

DT1400 limit switches application example 3

Type selection and ordering

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