RFX-6900 Analog Non-Contact Magnetic Angle Sensor with Current Output

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Manufacturer: Novotechnik
Category: Displacement, Encoder, Absolute Encoder, Single-turn Absolute Encoder, Absolute Magnetic Encoder, Angular displacement sensor, SENSORS

Novotechnik RFX-6900 Analog Magnetic Angle Sensor. Non-contact Hall angle sensor, up to 360°, in two pieces.

Two-piece, non-contact Hall effect angle sensor: sensor and magnetic position marker, shaftless and bearing-free. Ø 69 mm, anodized aluminum housing. Electrical range up to 360°. IP67/IP69K protection. Encapsulated electronics.

Key points

Contactless Hall technology, electrical range up to 360°
Single or multi-channel version
Two-piece design, mechanically decoupled
Anodized AlMgSi1 aluminum casing
IP67 / IP69K protection
EMC: ISO impulses, ISO 11452 and ECE directive
Safety according to ISO 13849, after customer validation

Technical Frequently Asked Questions

What can be connected to the RFX-6900 analog magnetic angle sensor?

It can be connected to Novotechnik M12 connectors and cables and Novotechnik rotary sensor positioners (magnets).

How do I order the RFX-6900 analog magnetic angle sensor?

The order code has 7 fields: model, channels, range, ub, signal, feature, and connection. For example, RFX-6901-836-324-651 is the version with model 6901 (69 x 20.4 mm), fully redundant, 360°, 12/24 VDC, 4…20 mA, crossover outputs with channel 1 increasing clockwise, and two unshielded 4-pole M12 connectors. All the options for each field are available in the order code configurator on this page.

Under what conditions does the RFX-6900 analog magnetic angle sensor operate?

Operating temperature: -40 … +85 °C. Protection: IP67 / IP69K (M12 connector: IP67).

Properties

Feature	Specification
Measurement and interface
Exit sign	4 … 20 mA
Burden	≤ 250 Ω (larger, on request)
Number of channels	1 / 2
Update frequency	5 kHz
Measuring range	60°, 120°, 180°, 240°, 300°, 360°
Independent linearity	≤ ±0.5 % FS
Interlinearity, measurement range < 90°	±4% FS
Interlinearity, measurement range ≥ 90°	±2% FS
Resolution	12 bits
Repeatability	≤ ±0.2°
Hysteresis	typ. < ±0.1° (360° range only: typ. < 0.25°; smaller, on request)
Temperature error, measurement range < 90°	200 ppm/K
Temperature error, measurement range ≥ 90°	160 ppm/K
Feeding and protection
Supply voltage Ub	12/24 VDC (9 … 34 VDC)
No-load current consumption	typ. 20 mA per channel (Ub = 24 V)
Reverse polarity protection	Yes (feed lines)
Short circuit protection	Yes (all outputs connected to GND and the supply voltage)
Insulation resistance (500 VDC)	≥ 10 MΩ
Mechanical data
Housing	Anodized AlMgSi1 aluminum, resistant to salt spray
Fixation	3 M4 screws, min. thread depth 7 mm
Tightening torque of the fastener	250 ± 50 Ncm
Mechanical tour	Continuous
Weight (without connection)	approx. 200 g
Electrical connection	M12x1 connector, A coding, or cable with cable gland, 4x 0.5 mm² (AWG 20), TPE, unshielded
Environmental conditions
Working temperature	-40 … +85 °C
Maximum working speed	Mechanically unlimited
Vibration IEC 60068-2-6	20 g, 5 … 2000 Hz, Amax = 0.75 mm
IEC 60068-2-27 Shock	50 g, 6 ms
DIN EN 60529 protection	IP67 / IP69K (M12 connector: IP67)
MTTF (IEC 60050)	461 years (per channel)
MTTFd (EN ISO 13849-1, parts count method, no load)	923 years (per channel)
Functional safety	ISO 13849 after customer validation; data (DCavg…) on request
Traceability	Serial number on the label (production batch)
Electromagnetic compatibility
ISO 10605 ESD (handling/component)	8 kV / 15 kV
ISO 11452-2 Radiated HF fields	100 V/m
ISO 11452-5 Radiated HF fields, stripline	200 V/m
CISPR 25 Radiated emission	Level 5
ISO 7637-2 Impulses in the feed lines (1, 2a, 2b, 3a, 3b, 4, 5)	Level 4
ISO 7637-3 Impulses on output lines	Level 4
Emission and resistance E1 according to ECE-R10	Single-channel and fully redundant versions

Option	Meaning
Example: RFX-6901-836-324-651 = model 6901 (69 x 20.4 mm), fully redundant, 360°, 12/24 VDC, 4 … 20 mA, crossover outputs with channel 1 increasing clockwise and 2 unshielded 4-pole M12 connectors.
1. Model and size
6901	69 x 20.4 mm
2. Number of channels
6	One channel (1x Ub, 1x output)
7	Partially redundant (1x Ub, 2x output), on request
8	Fully redundant (2x Ub, 2x output)
3 · Measurement range
06	60°
12	120°
18	180°
24	240°
30	300°
36	360°
4 · Supply voltage Ub
3	12/24 VDC
5 · Output signal
2	4 … 20 mA
6 · Output characteristic
1	Clockwise increasing
2	Crescent in a counterclockwise direction
3	Cross-outputs, clockwise increasing channel 1 (partially redundant), on request
4	Cross-outputs, channel 1 increasing clockwise (fully redundant)
7 · Electrical connection
252	Single channel or partially redundant: 1x 4-pole cable, 2 m, unshielded
551	Single channel or partially redundant: 1x unshielded 4-pole M12 connector
352	Fully redundant: 2x 4-pole cable, 2 m, unshielded
651	Fully redundant: 2x unshielded 4-pole M12 connector
The code is formed using one option from each field, in the order shown in the example. Contact us and we will confirm the exact reference.

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