3
Magtrol TM Series In-Line Torque Transducers
Chapter 1 – Introduction
2
TM 301 – TM 308
series ratings
The ratings in the following table apply to all standard Torque Transducer models 301–308, unless otherwise noted.
moDel ratings
The ratings in the following table apply to all Torque Transducer series (TM, TMHS and TMB).
Specifications
Standard Version
TM Series
TMHS Series
TMB Series
TORQUE MEASUREMENT
Rated Torque (RT)
0 to ±100% of RT
Maximum Dynamic Torque Peak Value
(Overload Capacity)
0 to ±200% of RT
Maximum Dynamic Torque Without Damage
(Overload Limit)
0 to ±400% of RT
Combined Error of Linearity and
Hysteresis
to 100% of RT
< ±0.1% of RT
(0.2% for TM 301)
< ±0.1% of RT
< ±0.1% of RT
Combined Error of Linearity and
Hysteresis from 100% to 200% of RT
< ±0.1% of
measured value
(0.2% for TM 301)
< ±0.1% of
measured value
< ±0.15% of
measured value
Temperature Influence on the Zero/
Sensitivity:
• In the Compensated Range +10 °C to +60 °C
< ±0.1% of RT/10K
< ±0.2% of RT/10K
• In the Compensated Range -25 °C to +80 °C
< ±0.2% of RT/10K
< ±0.4% of RT/10K
Influence of Speed on the Zero Torque
Signal
< ±0.01% of RT/1000 rpm
< ±0.02% of RT/1000 rpm
Long-term Stability of Sensitivity
< ±0.05% of RT/year
< ±0.1% of RT/year
SPEED MEASUREMENT
Rated Range of Use
1 to 20,000 rpm
TMHS 303: 1 to 40,000 rpm
TMHS 304-308: 1 to 50,000 rpm
1 to 6,000 rpm
Number of Teeth
60 Z
Minimum Speed Detection
1 rpm
ENVIRONMENT
Storage Temperature Range
-40 °C to +100 °C
Operating Temperature Range
-40 °C to +85 °C
Mechanical Shock
according to IEC 68.2.27 / Class D3
Vibration
according to IEC 68.2.6 / Class D3
Protection Class
IP 44
MECHANICAL CHARACTERISTICS
Shaft Ends
smooth
Balancing Quality
G1 according to ISO 1940
G2.5 according to
ISO 1940
INPUT AND OUTPUT SIGNALS
Power Supply (max. voltage / current)
20 to 32 VDC / 100 mA
Torque Output (rated / max.)
±5 / ±10 VDC
Filter Cutoff (frequency)
5000, 2500, 1000, 500, 200, 100, 40, 20, 10, 5, 2, 1 Hz
Speed Output (frequency)
open collector (15
Ω
in series), max. 30 VDC, protected against short-circuits
CONNECTORS
Counter Connector (female)
optional (P/N 957.11.08.0081)
* Models 301 and 302 available in TM Series only.
Model
Nominal Rated Torque
Torsional Stiffness
Moment of Inertia
Weight
N·m
lb·ft
N·m/rad
lb·ft/rad
kg·m²
lb·ft·s²
kg
lb
301 *
0.1
0.07
29
21
2.50 × 10
-5
1.84 × 10
-5
1.1
2.43
302 *
0.2
0.15
29
21
2.50 × 10
-5
1.84 × 10
-5
1.1
2.43
303
0.5
0.37
66
48
2.55 × 10
-5
1.88 × 10
-5
1.1
2.43
304
1
0.7
145
107
2.82 × 10
-5
2.07 × 10
-5
1.2
2.65
305
2
1.5
290
214
2.91 × 10
-5
2.14 × 10
-5
1.2
2.65
306
5
3.7
725
535
3.08 × 10
-5
2.27 × 10
-5
1.2
2.65
307
10
7.4
1450
1069
2.63 × 10
-5
1.94 × 10
-5
1.2
2.65
308
20
15
2900
2139
2.66 × 10
-5
1.96 × 10
-5
1.2
2.65