The panelmeter 2051 is designed for pulse sensors, whose frequency will be measured. The inputs are NPN-, PNP-, Namur -sensors, closing contact or a pickup-sensor.
The input frequency range 0,0001Hz...5 kHz is exceptionally wide starting with extremely low frequencies. The display is scaleable on the whole frequency range, e.g. 0-1,23 Hz can correspond to the range 0-5000 on the display. Output is freely scaleable on the basis of the display, e.g. 4-20 mA. The measuring method applied for low frequencies is to measure the time interval between two incoming pulses and for higher frequencies to measure the frequency. The display also provides a power supply of 24VDC, max. 150 mA for a sensor.
See also displays in field enclosure, model 2800-2051 and transmitter 6420.
Load manuals (pdf)
Load datasheets (pdf)
Load technical drawings
Namur, NPN, Pickup, pulse sensors, closing contact
0.01% full scale
24 VDC, max. 150 mA
number of digits
alarm levels 1 and 2
24 VDC: 70...110 mA depending on the digit count
24 VDC: 12...32 VDC / 24 VAC, 230 VAC: 85-260 V AC/DC
IP65 (front panel with a rubber gasket provided)
96 x 48 x115 mm (WHD)
minimum ambient temperature
maximum ambient temperature