Makes A Difference

Mercury 1500 Rotary Encoder

The Mercury 3500, Mercury 2000 and Mercury 1500 linear and rotary encoders can reduce the cost and size of your system, and improve its performance all at once. These encoders are smaller, higher performance, faster to install, and easier to set up and align than any other encoders. The tiny sensors fits into very tight spaces and works in both linear and rotary applications.

  • Factory Set Resolution to 0.50µm
  • Small sensor with ultra-low Z height; flush screw mounting
  • Sensor is 8.4mm(H) x 12.7mm(W) x 20.6mm(L) and weighs 1.6g
  • Available with 15 pin standard D connector or micro-connector
  • A-quad-B output and Index window
  • Factory set interpolation x4, x8, x20, x40 for resolutions of 5µm to 0.50µ(linear);
  • Entire system is EMI shielded
  • Bi-directional index signal
  • Index mark at the center or end of the glass scale(linear)
  • Alignment Tool enables fast set up

Specifications


Rotary - 20µm grating pitch

Rotary Glass Scale Diameter Fundamental Resolution Interpolation
Below is a table of the available resolutions
0.472" [12.00mm] 1650 CPR x4 x8 x20 x40
interpolated resolution (CPR) 6,600 13,200 33,000 66,000
interpolated resolution (arc-sec/count)* 196.4 98.2 39.2 19.64
interpolated resolution (µrad/count)* 952 476 190.3 95.2
maximum speed (RPM) 13090 13090 13090 13090
0.750" [19.05mm] 2500 CPR x4 x8 x20 x40
interpolated resolution (CPR) 10,000 20,000 50,000 100,000
interpolated resolution (arc-sec/count)* 129.6 64.8 25.9 12.96
interpolated resolution (µrad/count)* 628 314 125.6 62.8
maximum speed (RPM) 8640 8640 8640 8640
1.250" [31.75mm] 4096 CPR x4 x8 x20 x40
interpolated resolution (CPR) 16,384 32,768 81,920 163,840
interpolated resolution (arc-sec/count)* 79.1 39.6 15.82 7.91
interpolated resolution (µrad/count)* 383 191.7 76.6 38.3
maximum speed (RPM) 5273 5273 5273 5273
2.250" [57.15mm] 8192 CPR x4 x8 x20 x40
interpolated resolution (CPR) 32,768 65,536 163,840 327,680
interpolated resolution (arc-sec/count)* 39.6 19.78 7.92 3.96
interpolated resolution (µrad/count)* 191.7 95.8 38.3 19.17
maximum speed (RPM) 2637 2637 2637 2637
4.250" [107.95mm] 16384 CPR x4 x8 x20 x40
interpolated resolution (CPR) 65,536 131,072 327,680 655,360
interpolated resolution (arc-sec/count)* 19.78 9.89 3.96 1.978
interpolated resolution (µrad/count)* 95.8 47.9 19.16 9.58
maximum speed (RPM) 1318 1318 1318 1318


System

Grading Period 20µm
System Resolution 5µm, 2.5µm, 1.00µm or 0.50µm (linear)
Linear Accuracy* Better than  1µm** available; contact MicroE
Better than  3µm** up to 130mm,  5µm from 155mm to 1m,
5µm per meter from 1m to 2m
*maximum peak to peak error over the specified  movement when compared to a NIST-traceable laser interferometer standard, used at room temperature and with MicroE interpolation electronics.
**Or +/- one quadrature count, whichever error value is greater.
Rotary Accuracy* Scale O.D Microradians** Arc-Seconds**
12.00mm 100 21
19.05mm 63 13
31.75mm 38 7.8
57.15mm 19 3.9
107.95mm 10 2.1
*Based on ideal scale mounting concentricity
**Or +/- one quadrature count, whichever error value is greater


Sensor Size

W: 12.70mm 0.500"
L: 20.57mm 0.810"
H: 8.38 0.330"


Operating and Electrical Specification

Power Supply 5VDC 5%   @60mA
Temperature
Operating: 0 to 70°C
Storage: -20 to 70°C
Humidity: 10 -90% RH non-condensing
EMI: M1500S: Entire system is EMI/RFI protected
M1500H: Customer provides shielding at cable termination
Shock: 1500G 0.5 ms half sine (Sensor)
Sensor Weight: 5.0g (Sensor without cable)
Cable: Double Shield. Diameter: 3.6mm (0.142")
Flex Life: 20 x 10 cycles @ 20mm bending radius

Part Numbering System