UTMⅢ Slip-ring-less rotating torque meter

UTMⅢ Slip-ring-less rotating torque meter

Category: Load CellTorque Meter
Specifications
Torque Motor Rotating Torque Meter
Details
New series with 5kHz high-speed response & noise resistance digital output!
 
●17 different capacities ranging from 0.05Nm to 10000Nm.
●Analog bandwidth 5kHz with high-speed sampling rate of 20kHz.
●Safe overload of 500%
●Power supply DC24V
●Rated torque at ±10V
●Digital zero function via external signal
●Digital output via RS-485
●Equipped with pulse output for rotation detection

Increased resistance to radial & thrust load
Influences that radial and thrust loads exert on effective accuracy were dramatically reduced.
 
■Why is load other than torque applied at torque meter?
For torque measurement, when interlocking shafts, misalignments on shaft center as illustrated below occurs by all means.
The devices that absorb radial and thrust loads caused by such misalignments are couplings. However, even the couplings cannot completely absorb such radial and thrust loads, resulting in an impact on torque measurement.

Major misalignments when mounting shafts

Experimental data
 
Above illustration shows the output change when one shaft end of UTMIII-2Nm is fixed, and 7N radial load is applied at another shaft end through the bearing.
Output changes depending on rotation angle.
While output value changes 0.1% at maximum with conventional torque meter, output value changes less than 0.01% with UTMIII.

Abundant options available

More compact for side-by-side measurement

Added zero correction function with external signal

Frequency bandwidth of 5kHz, variable filter

Digital output via RS-485

Connection example


Sample application

 

Specifications

±0.05Nm to ±2Nm

Measurement
range		 ±0.05
Nm		 ±0.1Nm ±0.2Nm ±0.5Nm ±1Nm ±2Nm
Power supply DC24V ±15％
Consumption current 100mA or less
Output range ±10V DC　Load resistance must be more than 5kΩ
Responsivity 5kHz
Rotation
signal		 4 pulses per 1 rotation *1
Open collector Max. ratings 30V, 10mA
Digital filter 1Hz to 1kHz(Depending on settings) PASS 5kHz
Safe overload 500％FS
Non-linearity 0.03％FS or less
Hysteresis 0.03％FS or less
Repeatability 0.03％FS or less
Operation
temp. range		 -10 to +50℃
Temp. effect on ZERO 0.01%FS/℃ or below
Temp. effect on span 0.01%FS/℃ or below
Max. rotation speed 25000rpm
Torsional
spring
constant		 5.67
Nm/rad		 11.57
Nm/rad		 26.10
Nm/rad		 93.1
Nm/rad		 188
Nm/rad		 414
Nm/rad
Maximum
torsional
angle		 8.81×
10-3rad
(0.505°)		 8.64×
10-3rad
(0.495°)		 7.66×
10-3rad
(0.439°)		 5.37×
10-3rad
(0.308°)		 5.32×
10-3rad
(0.305°)		 4.83×
10-3rad
(0.277°)
Inertia
moment		 8.48×
10-7
kgm2		 8.58×
10-7
kgm2		 8.7×
10-7
kgm2		 1.46×
10-6
kgm2		 1.49×
10-6
kgm2		 1.39×
10-6
kgm2
Ext.
dimension
(case size/
W×H×D)		 54×49×32mm
Total length 74mm 84mm
Shaft
diameter		 φ5mm φ8mm
Weight Approx. 140g Approx. 160g
Supplied
cable		 12-conductor flexible cable (2m) Cable end: 5 wires
→ Cable length is switchable to 5m（Option：UTMⅢ-L5）
Optionally
available
cable		 CATM351：12-conductor flexible cable (5m) Cable end: 5 wires
CATM312：12-conductor flexible cable (10m) Cable end: 5 wires
CE marking
certificatio		 EMC directives EN61326-1,EN61326-2-3

Permissible shaft end load *2

Measurement
range		 ±0.05Nm ±0.1Nm ±0.2Nm ±0.5Nm ±1Nm ±2Nm
RadialN 0.12N 0.25N 0.3N 0.5N 1N 8N
ThrustN 3N 4N 5N 6N 8N 30N
RadialN
(R, RC, RK, RCK)		 0.07N 0.14N 0.17N 0.3N 0.6N 5N
ThrustN
(R, RC, RK, RCK)		 3N 4N 5N 6N 8N 30N

Option

Measurement
range		 ±0.05Nm ±0.1Nm ±0.2Nm ±0.5Nm ±1Nm ±2Nm
Key Groove            
Rotary encoder ○ ○ ○ ○ ○ ○
Key groove &
Rotary encoder		            
Centering
location		 ○ ○ ○ ○ ○ ○
Key groove &
Centering location		            
Rotary encoder &
Centering location		 ○ ○ ○ ○ ○ ○
Key groove &
Rotary encoder &
Centering location		            
*1 0.05 to 10Nm model can be changed to 60 pulses in 1 rotation specification. Contact us for more details.
*2 Radial N and Thrust N of permissible shaft end load are the values guaranteeing that influence for torque output is less than 0.03% when those loads apply.

±5Nm～±200Nm

Measurement
range		 ±5Nm ±10Nm ±20Nm ±50Nm ±100Nm ±200Nm
Power supply DC24V ±15％
Consumption current 100mA or less 150mA or less
Output range ±10V DC　Load resistance must be more than 5kΩ
Responsivity 5kHz
Rotation
signal		 4 pulses per 1 rotation *1
Open collector Max. ratings 30V, 10mA
Digital filter 1Hz to 1kHz(Depending on settings) PASS 5kHz
Safe overload 500％FS
Non-linearity 0.03％FS or less
Hysteresis 0.03％FS or less
Repeatability 0.03％FS or less
Operation
temp. range		 -10 to +50℃
Temp. effect on ZERO 0.01%FS/℃ or below
Temp. effect on span 0.01%FS/℃ or below
Max. rotation speed 25000rpm 20000rpm 15000
rpm		 12000
rpm
Torsional
spring
constant		 691
Nm/rad		 1851
Nm/rad		 5386
Nm/rad		 8428
Nm/rad		 17.3×
103
Nm/rad		 41.7×
103
Nm/rad
Maximum
torsional
angle		 7.24×
10-3rad
(0.415°)		 5.40×
10-3rad
(0.310°)		 3.71×
10-3rad
(0.213°)		 5.93×
10-3rad
(0.340°)		 5.78×
10-3rad
(0.331°)		 4.79×
10-3rad
(0.275°)
Inertia
moment		 3.56×
10-6
kgm2		 3.66×
10-6
kgm2		 2.59×
10-5
kgm2		 2.66×
10-5
kgm2		 6.59×
10-5
kgm2		 1.40×
10-4
kgm2
Ext.
dimension
(case size/
W×H×D)		 57×54×37mm 70×63×47mm 67×
63.5×
56mm		 67×68×
61mm
Total length 97mm 150
mm		 170
mm		 177mm 187mm
Shaft
diameter		 φ12mm φ20mm φ25mm φ30mm
Weight Approx. 250g Approx. 670g Approx.
1.1kg		 Approx.
1.4kg
Supplied
cable		 12-conductor flexible cable (2m) Cable end: 5 wires
→ Cable length is switchable to 5m（Option：UTMⅢ-L5）
Optionally
available
cable		 CATM351：12-conductor flexible cable (5m) Cable end: 5 wires
CATM312：12-conductor flexible cable (10m) Cable end: 5 wires
CE marking
certificatio		 EMC directives EN61326-1,EN61326-2-3

Permissible shaft end load *2

Measurement
range		 ±5Nm ±10Nm ±20Nm ±50Nm ±100Nm ±200Nm
RadialN 15N 20N 23N 60N 90N 160N
ThrustN 40N 100N 360N 400N 500N 800N
RadialN
(R, RC, RK, RCK)		 7N 13N 20N 25N 60N 100N
ThrustN
(R, RC, RK, RCK)		 40N 100N 360N 400N 500N 800N

Option

Measurement
range		 ±5Nm ±10Nm ±20Nm ±50Nm ±100Nm ±200Nm
Key Groove ○ ○ ○ ○ ○ ○
Rotary encoder ○ ○ ○ ○ ○ ○
Key groove &
Rotary encoder		 ○ ○ ○ ○ ○ ○
Centering
location		 ○ ○ ○ ○ ○ ○
Key groove &
Centering location		     ○ ○ ○ ○
Rotary encoder &
Centering location		 ○ ○ ○ ○ ○ ○
Key groove &
Rotary encoder &
Centering location		     ○ ○ ○ ○
*1 0.05 to 10Nm model can be changed to 60 pulses in 1 rotation specification. Contact us for more details.
*2 Radial N and Thrust N of permissible shaft end load are the values guaranteeing that influence for torque output is less than 0.03% when those loads apply.

±500Nm～±10000Nm

Measurement
range		 ±500Nm ±1000Nm ±2000Nm ±5000Nm ±10000Nm
Power supply DC24V ±15％
Consumption current 150mA
or less		 180mA or less
Output range ±10V DC　Load resistance must be more than 5kΩ
Responsivity 5kHz
Rotation
signal		 4 pulses per 1 rotation *1
Open collector Max. ratings 30V, 10mA
Digital filter 1Hz to 1kHz(Depending on settings) PASS 5kHz
Safe overload 500％FS
Non-linearity 0.03％FS or less
Hysteresis 0.03％FS or less
Repeatability 0.03％FS or less
Operation
temp. range		 -10 to +50℃
Temp. effect on ZERO 0.01%FS/℃ or below
Temp. effect on span 0.01%FS/℃ or below
Max. rotation speed 10000
rpm		 7000rpm 6000rpm 5000rpm 4000rpm
Torsional
spring
constant		 117×103
Nm/rad		 377×103
Nm/rad		 717×103
Nm/rad		 1649×103
Nm/rad		 3255×103
Nm/rad
Maximum
torsional
angle		 4.28×
10-3rad
(0.246°)		 2.65×
10-3rad
(0.152°)		 2.79×
10-3rad
(0.160°)		 3.03×
10-3rad
(0.174°)		 3.07×
10-3rad
(0.176°)
Inertia
moment		 4.70×
10-4
kgm2		 2.90×
10-3
kgm2		 5.89×
10-3
kgm2		 2.01×
10-2
kgm2		 5.16×
10-2
kgm2
Ext.
dimension
(case size/
W×H×D)		 67×78×
71mm		 86×103×
98mm		 86×119×
111mm		 97×141×
137mm		 103×166×
162mm
Total length 217mm 286mm 306mm 387mm 447mm
Shaft
diameter		 φ40mm φ60mm φ70mm φ90mm φ110mm
Weight Approx.
2.6kg		 Approx.
7.4kg		 Approx.
10.6kg		 Approx.
21.7kg		 Approx.
36.2kg
Supplied
cable		 12-conductor flexible cable (2m) Cable end: 5 wires
→ Cable length is switchable to 5m（Option：UTMⅢ-L5）
Optionally
available
cable		 CATM351：12-conductor flexible cable (5m) Cable end: 5 wires
CATM312：12-conductor flexible cable (10m) Cable end: 5 wires
CE marking
certificatio		 EMC directives EN61326-1,EN61326-2-3

Permissible shaft end load *2

Measurement
range		 ±500Nm ±1000Nm ±2000Nm ±5000Nm ±10000Nm
RadialN 300N 400N 500N 1000N 1200N
ThrustN 1800N 3000N 4500N 7000N 11000N
RadialN
(R, RC, RK, RCK)		 200N – – – –
ThrustN
(R, RC, RK, RCK)		 1800N – – – –

Option

Measurement
range		 ±500Nm ±1000
Nm		 ±2000
Nm		 ±5000
Nm		 ±10000
Nm
Key Groove ○ ○ ○ ○ ○
Rotary encoder ○        
Key groove &
Rotary encoder		 ○        
Centering
location		 ○        
Key groove &
Centering location		 ○        
Rotary encoder &
Centering location		 ○        
Key groove &
Rotary encoder &
Centering location		 ○        
*1 0.05 to 10Nm model can be changed to 60 pulses in 1 rotation specification. Contact us for more details.
*2 Radial N and Thrust N of permissible shaft end load are the values guaranteeing that influence for torque output is less than 0.03% when those loads apply.

 
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