Digital length counter LMD6-8R/12-24V
L=(-999.95 ... 9999.95 mm), Us=12÷24V ac/dc, 95x49x113mm
The LMD6-8R/12-24V reversing controller for length measurement is a microprocessor device with a 6-digit display. There is no relay output and it is used for measuring and visualizing lengths in the range from -999.95mm to 9999.95mm. It has two inputs "A" and "B" and operates together with a sensor type "NPN" with two phase-shifted outputs (OVM1-18.24.F). The controller saves its current data in the event of a power failure. The device is designed for installation in a dashboard (panel montage).
The LMD6-8R reversible digital controller is used to measure and visualize linear lengths. Shows both positive and negative lengths, which are indicated in millimeters. The controller has two counting inputs A and B, and is designed to operate in a system consisting of an optoelectronic sensor type OVM1-18.24.F (with two phase-shifted outputs) and a measuring ruler with a raster of 0.5mm (Fig. 1). The length measuring controller has three operating modes (I, II and III), which determine the discreteness when reading the length: 1mm, 0.5mm and 0.25mm. Switching from one mode to another is done by pressing and holding the "Reset" button for six seconds. There is a variant LMD6-8RC indicating the length in centimeters (on request). Analog output 0...4V (on request).
|Digital indication, LED - red||6 digits, h=10 mm (height)|
|Measuring range, L|
|- in mode I||-99999 … 999999 mm|
|- in mode II||-9999,5 … 99999,5 mm|
|- in mode III||-999,75 … 9999,75 mm|
|Supply voltage, Us||12÷24V ac/dc (11÷31Vdc / 11÷27Vac)|
|Power consumption, P||2 W (85 mA)|
|Maximum counting frequency, Fmax||11 kHz|
|Operating temperature, Tamb||-20º...+50º C|
|Degree of protection||IP40|
|Overall dimensions||95х49х113 mm|
Scheme of connection
Connecting an NPN encoder to the counter input
PNP encoder connection diagram
Connect a PNP encoder to the counter input by adding two 2K / 0.5W resistors.
Overall dimensions (mm)
The reversible LMD6-8R digital length meter used as a means of automating production processes for measuring quantitative values. Used to visualize positive and negative displacements.
Typical parameters of the length counter LMD6-8R
|LMD6-8R / 12-24V||11÷31VDC / 11÷27VAC||2W (85mA)|
|LMD6-8R/ 220V||220VAC ±10%||4W (16mA)|