Data Sheet for Linear Sensors
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich
Tel.: +49 89 46094-0 ▪ www.megatron.de ▪ info@megatron.de
Date: 11/08/2021
Page: 1 of 3
Potentiometric Linear Transducer (Conductive Plastic)
Series CD18
Specications are subject to change without notice
Electrical Data
CD18 25 CD18 50 CD18 75 CD18 100 CD18 150
Eective electrical travel 1.)
25 +3 mm 50 +3 mm 75 +3 mm 100 +3 mm 150 +3 mm
Total electrical travel 1.) 26 ±1 mm 51 ±1 mm 76 ±1 mm 101 ±1 mm 151 ±1 mm
Total resistance 1.) 1 kOhm 5 kOhm
Resistance tolerance ±20 %
Independent linearity (best straight line) 1.) ±0.2 % ±0.1 % ±0.05 %
Theoretical resolution 1.)
Almost innite
Backlash (Hysteresis) 1.)
≤ 0.02 mm
Max. / recommended wiper current1.)
1 mA (@40 °C, 1 min in case of failure) / 2 µA
Power rating @40 °C (0 W @120 °C)
≤ 0.6 W ≤ 1.2 W ≤ 1.8 W ≤ 2.5 W ≤ 3.6 W
Isolation voltage 1.)
< 100 μA@500 VAC, 1bar, 2s
Isolation resistance 1.)
100 MOhm@500 VDC, 1bar, 2s
Mechanical Data, Environmental Condi-
tions, Miscellaneous
CD18 25 CD18 50 CD18 75 CD18 100 CD18 150
Mechanical stroke 1.) 30 mm 55 mm 80 mm 105 mm 155 mm
Lifetime (90 % eective electrical travel) 2.)
> 25 million meters or 100 million movements
(the smaller value applies)
Max. operational speed < 10 m/s
Operational force @ RT 1.) 2.) < 0.3 N
Operational temperature
-30..+100 °C
Storage temperature
-50..+120 °C
Protection grade (IEC60529)
IP40
Vibration (IEC 68-2-6, Test Fc)
20 g (5..2000 Hz, 0.75 mm)
Shock (IEC 68-2-27, Test Ea)
50 g, halfsine, 11 ms (18x)
Housing length 63 ±1 88 ±1 113 ±1 138 ±1 188 ±1
Mass
ca. 83 g ca. 102 g ca.121 g ca. 140 g ca. 178 g
Mounting parts (included in delivery)
4 x mounting clamps
Material housing
Aluminium
Material pushrod
Stainless steel
Connection type Round cable 3-pole 1 m, plug DIN 43322
1.) According IEC 60393
2.) Determined by climatic conditions according to IEC 68-1, para. 5.3.1 without load collectives
Please note: Max. permissible supply voltage <75 VDC respectively <50 VAC in addition the max. power rating must be observed
The linear potentiometers of the CD18 series have a guided
push rod on both sides and are available in measuring
strokes from 25..150 mm. The sensors have a coupling
(WKM8 1 piece included), which makes assembly easier
and compensates lateral misalignment. The delivery
includes a set of mounting clamps.
With connector
With cable
Data Sheet for Linear Sensors
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich
Tel.: +49 89 46094-0 ▪ www.megatron.de �� info@megatron.de
Date: 11/08/2021
Page: 2 of 3
Potentiometric Linear Transducer (Conductive Plastic)
Series CD18
Specications are subject to change without notice
For higher quantities or on-going demand, additional options are available as described below on request
For example:
Assembled leads and cables with / without connector
Probe, special axis length and much more
Order Code
Description Selection: standard=black/bold, possible options=grey/cursive
Series: CD18
Eective electrical travel:
25 mm
50 mm
75 mm
100 mm
150 mm
25
50
75
100
150
Electrical connection:
Plug
Round cable 1 m
Option customer-specic cable length in m
S
K
Kxx
Note: When calibrating the linear transducer, be careful to set the stroke so that the output does not drop below 1 % or rise beyond 99 % of the
supply voltage.
Accessory (not included in delivery):
Mating connector (STEM16) #110906: M16 thread, 5-pole, IP67, straight, shielded (STE M16 5POL IP67 G S)
Mating connector (STEM16) #114462: M16 thread, 5-pole, IP67, angled, shielded (STE M16 5POL IP67 W S)
Mating connector with cable (STKM16) #127664: M16 thread, 5-pole, IP67, straight, shielded, 2 m (STK M16 5POL IP67 G
GS 2M AWG24)
Mating connector with cable (STKM16) #127665: M16 thread, 5-pole, IP67, angled, shielded, 2 m (STK M16 5POL IP67 W
GS 2M AWG24)
More connectors with and without cable on request. Take a look at data sheet STEM16 for connector without cable or
STKM16 for connector with cable.