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  • Frequency to Current converter DAT4540R

    • converts Frequency up to 20 KHz
    • Namur, TTL, PNP Tachometer Input.
    • Current and Voltage Output
    • Relay Output
    • DIP Switch Configurable
    • PC Programmable
    • DIN Rail Mounted
  • Frequency to Current converter DAT4540R

Frequency to Current converter DAT4540R

General Description

The Frequency to Current converter DAT4540R is a signal conditioning din rail mount converter which converts a pulse input to an analog output equal to the set range which is selectable from 0.1 Hz up to 20 KHz. The DAT4540R also provides 2 relay outputs and a transistor output. The input can be from a Tacho, TTL, PNP transistor or from any Namur standard. The DAT4540R provides a Voltage or Current output that is isolated from the power supply and input.

Namur, TTL, PNP, Tacho, Volts.
Current 4-20mA, 0-20mA.
Voltage 0-10V Min Span 1 V.
2 Relays SPDT Max Load 250Vac 2A
Power Supply Voltage 7-32Vdc
Reverse polarity protection 60Vdc
35 mA
PC Configurable.
DIP Switch Configurable.
Between 3 way 1500Vac.
For Industrial environments
Immunity EN 61000-6-2
Emission EN 6100-6-4
Material self-extinguishing
Dimensions W x H x T
3 1/2" x 4 1/2 " x 1/2"
90 x 112x x 12.5 mm
Weight 3 oz 90 g
Operating Temperature -4°F +140°F -20°C +60°C
Storage Temperature -40°F +185°F-40°C +85°C
Humidity (non condensing) 0-90%



Input: Tacho, Voltage, TTL, Namur, PNP. See Data sheet for range.
Output: Current 4-20mA, 0-20mA Min span 4mA. Voltage 0-10V Min Span 1 V.
Output Relay: 2 X SPDT Max Load 250Vac, 2 Amp.
Output Digital: Transistor output Max load 30 Vdc, 100mA.
Power Supply: 20 to 30 Vdc. Reverse polarity protection 60 Vdc.
Current Consumption: Current output 90 mA max.
Temperature rating: Operative- 4°F +158°F - 20°C +70°C
  Temperature Storage Temperature - 40°F +185°F - 40°C +85°C.
Humidity: (non condensing) 0-90%.
Housing: Material Self-extinguishing.
Dimensions: 3 1/2" x 4 1/2 " x 1/2", 90 x 112x x 12.5 mm.
Weight: 3 oz 90 g.
EMC. For industrial environments.
  Immunity: EN 61000-6-2.
  Emission: EN 61000-6-4.
Configuration: PC Configurable and DIP Switch Configurable


Input. Namur G and L
  PNP G and L
  TTL/Volt L and I
  Tacho H and I
Signal Output.    
Voltage. Positive O Negative P  
Current. Active Positive M Negative N
  Passive Positive N Negative P
Relay Output. Relay A Relay B
  Common D and C Common S and T
  Normally closed B Normally closed U
  Normally open A Normally open V
Power Supply (18-30Vdc). Positive Q Negative R.  

Frequency to Current converter wiring Diagram.


  • Frequency to Relay Output.
  • TTL to Relay converter.
  • PNP to Relay.
  • Tachometer to Relay.
Back to General Description