DX342/345/346/347/348 Speed & Rate Meters Operation modes-tachometer-speed/rate meter-frequency counter

Model Numbers

DX342  Speed and Rate Meter (2 relays, serial RS232/485 interface) 
DX345 Speed and Rate Meter (Display only) 
DX346  Speed and Rate Meter (Analogue Output) 
DX347  Speed and Rate Meter (2 Presets / Transistor Outputs) 
DX348  Speed and Rate Meter ( serial RS232 / RS485 interface) 

Features

  • Universal muli-function units with operation modes as tachometer, speed or rate meter and frequency counter. 
  • Suitable for display or RPM, speed, cycle rate, baking and processing time, wiht supplementary counter and timer / stopwatch functions
  • Counting frequency 25 kHz in speed mode and 100 kHz with A/B quadrature count
  • Dimensions 96 x 48mm (3.780 x 1.890") and 6 decade at 15mm (0.590") size
  • Universal inputs for sensors and encoders with PNP/NPN or Namur characteristics (HTL level 10-30V)
  • Easy Scaling and setup by means of 3 front keys and menu support 
  • Selectable linearization function with 16 interpolation points
  • Aux. output 24 VDC/150mA for supply of sensors and encoders
  • Power supply 115/230 VAC or 24VDC (model DX342: 24VDC only)

Accessories & Options

Power Supply Voltage  24VDC (17 - 30V) 
Consumption (without sensor) 18V - 120mA, 24 V = 95 mA, 30V = 80 mA (approx.) 
Aux. Voltage for encoder supply  24VDC ±15%, 120 mA (5 VDC / 120 mA with option TTLIN1)
Inputs 3 (PNP/NPN/Namur), A/B = Impulse, C = Reset 
 Input Currents 5.1 mA / 24V (Ri = 4.7 kOhms) 
Input level HTL (Standard)  Low: 0 - 3,5 V, High: 9-30V 
Input TTL (option TTLIN1)  CMOS levels, low: 0-0.8V, High: 3.6 - 5.0V 
 Max. Input Frequency

All counter modes: 100 kHz

All other operating modes: 25kHz

Reset input C: 1kHz ( min. pulse duration 500 usec) 

 Display update rate Approx. 7 msec (330 msec with tachometer operation) 
 ACcuracy(Frequency measurement) ±1 ppm ±1 Digit 
 Serial Interface RS232 or RS485 (Switch Selectable) 600 - 38400 bauds 
 Ambient Temperature

Operation: 0° - 45°C (32 - 113°F)

Storage: -25° - +70°C(-13 - 158°F)

 Housing Norly UL94-V-0 
 Display 6 Digit, LED, high-effiiciency orange, 15mm (0.59")  
 Protection Class Front IP65, Rear IP20 
 Terminals Signals max. 1.5mm², relay outputs max. 2.5mm² 
 Relays 2 x dry change-over contacts, each 250 VAC / 1A / 250 VA or 100 VDC / 1 A / 100 W 
 Weight (net) approx. 450g 
 Conformity and Standards EMC 2004/108/EC: EN61000-6-2, EN61000-6-3; LV2006-95/EC: EN61010-1