RFD-4000 Two-Piece Non-Contact Angle Sensor

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

Novotechnik RFD-4000 Non-Contact Angle Sensor. Non-contact Hall angle sensor, up to 360° and 7 mm high.

Two-piece, non-contact Hall effect angle sensor: sensor and magnetic position marker fixed to the shaft, without shaft or bearing. Electrical range up to 360°, linearity ±0.5%, 12-bit resolution. Ratiometric analog output 0.25 … 4.75 V. 7 mm height. IP67, IP68, and IP69 protection. Wired connection.

Key points

Contactless, axleless
Measurement through non-ferromagnetic material
Electrical range up to 360°, linearity ±0.5%
Lateral displacement of the magnet up to ±3 mm
IP67, IP68, IP69 protection; single and multi-channel versions
Unlimited mechanical life; up to 12-bit resolution; 7 mm height

Technical Frequently Asked Questions

What can be connected to the RFD-4000 contactless angle sensor?

It can be connected to Novotechnik rotary sensor positioners (magnets) and a multifunction meter with digital display for direct connection of potentiometric and standardized MAP-4000 signals.

How do I order the RFD-4000 contactless angle sensor?

The order code has 7 fields: mechanical version, channels, range, Ub, signal, feature, and connection. For example, RFD-4021-636-211-401 is the version with a standard design, 1 channel, range of 0° to 360°, Ub = 5 VDC, output 5…95% ratiometric increasing clockwise, and 3 wires of 0.5 m. All the options for each field are available in the order code configurator on this page.

Under what conditions does the RFD-4000 contactless angle sensor operate?

Operating temperature: -40 … +125 °C. Protection: IP67 / IP68 / IP69.

Properties

Feature	Specification
Measurement and exit signal
Exit sign	Ratiometric at supply voltage Ub: 5 … 95 % (0.25 … 4.75 V) or 10 … 90 % (0.5 … 4.5 V)
Burden	≥ 10 kΩ
Number of channels	1 / 2
Diagnosis	Activated (in error, the signal is outside the plausible range)
Update frequency	typical 2.5 kHz
Measuring range	0 … 30° to 0 … 360°, in 10° steps
Independent linearity	≤ ±0.5% FS (with 10 kΩ pull-down resistor)
Resolution	12 bits
Repeatability	typical ≤ ±0.1°
Temperature error, range 30 … 170°	typ. ±0.875 % FS
Temperature error, range ≥ 180°	typ. ±0.6% FS
Feeding and protection
Supply voltage Ub	5 VDC (4.5 … 5.5 VDC)
No-load current consumption	typical 13 mA per channel (typical 8 mA on request)
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
Environmental conditions
Working temperature	-40 … +125 °C
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 / IP68 / IP69
Maximum working speed and life	Mechanically unlimited
MTTF (IEC 60050)	9926 years (1 channel), 4441 years (partially redundant, per channel) or 4512 years (fully redundant, per channel)
Electromagnetic compatibility
ISO 10605 ESD (handling/component)	8 kV / 15 kV
ISO 11452-2 Radiated HF fields	200 V/m
ISO 11452-5 Radiated HF fields, stripline	200 V/m
CISPR 25 Radiated emission	Level 5
EN 61000-4-4 Fast transients (burst)	1 kV
EN 61000-4-6 Conducted disturbances (HF fields)	10 V ef.
EN 61000-4-8 Magnetic fields	30 A/m
Mechanical data
Housing	Temperature-resistant PBT-GF plastic with brass inserts
Fixation	2 M4x14 socket head cap screws (included in the supply)
Tightening torque of the fastener	max. 150 Ncm
Mechanical tour	Continuous
Weight	approx. 10 g
Electrical connection	0.5 mm² (AWG 20) PVC wires
Process accessories
Reference	Description
MAP-4000	Multifunction meter with digital display for direct connection of potentiometric and standardized signals

Option	Meaning
Example: RFD-4021-636-211-401 = standard design, 1 channel, range 0° to 360°, Ub = 5 VDC, output 5 … 95 % ratiometric increasing clockwise and 3 wires of 0.5 m.
1 · Mechanical version
4021	Standard design
2. Number of channels
6	1 channel (1x Ub / 1x output)
7	Partially redundant (1x Ub / 2x output)
8	Fully redundant (2x Ub / 2x output)
3 · Measurement range
03	0° … 30° min.
06, 12, 18, 24, 36	0° … 60°, 120°, 180°, 240°, 360°
36	0° … 360° max.
4 · Supply voltage Ub
2	Ub = 5 VDC
5 · Output signal
1	5 … 95 % ratiometric to Ub (0.25 … 4.75 VDC)
2	10 … 90 % ratiometric to Ub (0.5 … 4.5 VDC)
6 · Output characteristic
1	Clockwise increasing
2	Crescent in a counterclockwise direction
3	Cross-outputs, channel 1 increasing clockwise (partially redundant)
4	Cross-outputs, channel 1 increasing clockwise (fully redundant)
7 · Electrical connection
401	Threads, 3x L = 0.5 m (1 channel)
411	Threads, 4x L = 0.5 m (partially redundant)
421	Threads, 6x L = 0.5 m (fully redundant)
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.