This is one of many intrinsically safe variations of the Sensata | BEI Sensors Model HS35 Series product line for use in hazardous locations of the marketplace.
This specially configured DrawWorks Model HS35 encoder combines rugged, heavy-duty features into a unique through-shaft style for use as a winchturns counter in the DrawWorks system of oil rigs. It incorporates dual bearings and shaft seals for NEMA 4 and 13 (IP65) ratings, a hard-anodized metal housing and a sealed connector.
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Contact UsThis product comes with a standard 1”-14 diameter threaded connection and a convertible adapter that allows its use in systems with a 5/8”-18 threaded connection. This encoder has an UL, cUL, and ATEX/CENELEC intrinsically safe rating when installed with the proper barriers (refer to BEI P/N 924-60004-XXX series on the back of this specification sheet). This barrier is high performance, galvanically isolated and carries US and European agency approvals. It is suitable for ALL Hazardous locations, regardless of gas and dust types.
Code | Incremental |
Output Format | 2 channels (A and B) in quadrature ± 27° electrical, with index and complements (see Figure 1) |
Cycles per Shaft Turn | Up to 5,000 (see Table A) |
Supply Voltage | 5 or 9V |
Current Requirements | 120mA (typical) |
Output Device | 5V/OC, 9V/OC, 5V/OCR,40mA max current sink;5 or 5V/V line driver 100mA source/sink; 5V only |
Frequency Response | 150 KHz |
Output Termination Pinouts | See Table 1 |
Shaft Bore | 0.375” diameter through with convertible adapter for 1” or 5/8” air coupler. |
Starting Torque at 25°C | 7in-oz |
Shaft Material | 416 stainless steel |
Bearings | 52100 bearing steel |
Bearing Housing | Die cast aluminum |
Bearing Life | 7.5 X 109 revs at rated load (50,000 hrs at 2500 RPM) |
Maximum RPM | 6,000 RPM (see frequency response, below) |
Moment of Inertia | 0.019 oz-in-sec2 |
Weight | Approximately 18 oz. |
Enclosure Rating | NEMA 4/13 (IP65) |
Temperature | -40° to +80°C standard |
Shock | 50 G/s at 11msec duration |
Vibration | 5 to 2000 Hz @ 20 G’s |
Humidity | 98% RH without consideration |