UTMⅢ

Product outline

New series with 5kHz high-speed response & noise-insensitive digital output!

●Avalable in 17 different capacities ranging from 0.05 to 10000 N m
●Max rotaitional speed 40000 rpm
●Analog bandwidth 5 kHz with high-speed sampling rate of 20 kHz.
●Safe overload of 500%
●±10 V of analog output Full Scale
●No need to exchange torque meter! Range switching method cable of measuring two capacities

• 2 N m ↔ 0.1 N m
• 10 N m ↔ 0.5 N m
• 5 N m ↔ 0.25 N m

●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 occur 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 5 kHz, variable filter

Digital output via RS-485

Connection example

Sample application

Specifications

±0.05 N m to ± 2 N m

Measurement range	±0.05 N m	±0.1 N m	±0.2 N m	±0.5 N m	±1 N m	±2 N m
Power supply	DC 24 V ±15％
Consumption current	100 mA or less
Output range	±10 V DC　Load resistance must be more than 5 kΩ
Responsivity	5 kHz
Rotation signal	4 pulses per 1 rotation Open collector Max. ratings 30 V, 10 mA (0.05 to 10 N m model can be changed to 60 pulses in 1 rotation specification. )
Digital filter	1 Hz to 1 kHz(Depending on settings) PASS 5 kHz
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	25000 rpm 0.05 to 10 N m can be changed to a maximum rotation speed of 40000 rpm.
Torsional spring constant	5.67 N m/rad	11.57 N m/rad	26.10 N m/rad	93.1 N m/rad	188 N m/rad	414 N m/rad
Maximum torsional angle	8.81× 10-3 rad (0.505°)	8.64× 10-3 rad (0.495°)	7.66× 10-3 rad (0.439°)	5.37× 10-3 rad (0.308°)	5.32× 10-3 rad (0.305°)	4.83× 10-3 rad (0.277°)
Inertia moment	8.48× 10-7 kg m2	8.58× 10-7 kg m2	8.7× 10-7 kg m2	1.46× 10-6 kg m2	1.49× 10-6 kg m2	1.39× 10-6 kg m2
Ext. dimension (case size/ W×H×D)	54×49×32 mm
Total length	74 mm			84 mm
Shaft diameter	φ5 mm			φ8 mm The shaft can be changed to a hollow shaft.
Weight	Approx. 140 g			Approx. 160 g
Supplied cable	12-conductor flexible cable (2 m) Cable end: 13 wires → Cable length is switchable to 5 m（Option：UTMⅢ-L5）
Optionally available cable	CATM351：12-conductor flexible cable (5 m) Cable end: 13 wires CATM312：12-conductor flexible cable (10 m) Cable end: 13 wires
CE marking certification	2011/65/EU+ (EU)2015/863,2014/30/EU (EN61326-1,EN61326-2-3)

Permissible shaft end load(N)
The allowable shaft end load (N) for radial and thrust is the value that guarantees that the torque output will not be affected by 0.03% FS or less when these loads are applied.

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

Option

Measurement range	±0.05 N m	±0.1 N m	±0.2 N m	±0.5 N m	±1 N m	±2 N m
Key Groove
Rotary encoder	○	○	○	○	○	○
Key groove & Rotary encoder
Centering location	○	○	○	○	○	○
Key groove & Centering location
Rotary encoder & Centering location	○	○	○	○	○	○
Key groove & Rotary encoder & Centering location
Dual range						○

±5 N m to ±200 N m

Measurement range	±5 N m	±10 N m	±20 N m	±50 N m	±100 N m	±200 N m
Power supply	DC 24 V ±15％
Consumption current	100 mA or less		150 mA or less
Output range	±10 V DC　Load resistance must be more than 5 kΩ
Responsivity	5 kHz
Rotation signal	4 pulses per 1 rotation Open collector Max. ratings 30 V, 10 mA (0.05 to 10 N m model can be changed to 60 pulses in 1 rotation specification. )
Digital filter	1 Hz to 1 kHz(Depending on settings) PASS 5 kHz
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	25000 rpm 0.05 to 10 N m can be changed to a maximum rotation speed of 40000 rpm.		20000 rpm		15000 rpm	12000 rpm
Torsional spring constant	691 N m/rad	1851 N m/rad	5386 N m/rad	8428 N m/rad	17.3× 103 N m/rad	41.7× 103 N m/rad
Maximum torsional angle	7.24× 10-3 rad (0.415°)	5.40× 10-3 rad (0.310°)	3.71× 10-3 rad (0.213°)	5.93× 10-3 rad (0.340°)	5.78× 10-3 rad (0.331°)	4.79× 10-3 rad (0.275°)
Inertia moment	3.56× 10-6 kg m2	3.66× 10-6 kg m2	2.59× 10-5 kg m2	2.66× 10-5 kg m2	6.59× 10-5 kg m2	1.40× 10-4 kg m2
Ext. dimension (case size/ W×H×D)	57×54×37 mm		70×63×47 mm		67× 63.5× 56 mm	67×68× 61 mm
Total length	97 mm		150 mm	170 mm	177 mm	187 mm
Shaft diameter	φ12 mm The shaft can be changed to a hollow shaft.		φ20 mm		φ25 mm	φ30 mm
Weight	Approx. 250 g		Approx. 670 g		Approx. 1.1 kg	Approx. 1.4 kg
Supplied cable	12-conductor flexible cable (2 m) Cable end: 13 wires → Cable length is switchable to 5 m（Option：UTMⅢ-L5）
Optionally available cable	CATM351：12-conductor flexible cable (5 m) Cable end: 13 wires CATM312：12-conductor flexible cable (10 m) Cable end: 13 wires
CE marking certification	2011/65/EU+ (EU)2015/863,2014/30/EU (EN61326-1,EN61326-2-3)

Permissible shaft end load(N)
The allowable shaft end load (N) for radial and thrust is the value that guarantees that the torque output will not be affected by 0.03% FS or less when these loads are applied.

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

Option

Measurement range	±5 N m	±10 N m	±20 N m	±50 N m	±100 N m	±200 N m
Key Groove	○	○	○	○	○	○
Rotary encoder	○	○	○	○	○	○
Key groove & Rotary encoder	○	○	○	○	○	○
Centering location	○	○	○	○	○	○
Key groove & Centering location			○	○	○	○
Rotary encoder & Centering location	○	○	○	○	○	○
Key groove & Rotary encoder & Centering location			○	○	○	○
Dual range	○	○

±500 N m to ±10000 N m

Measurement range	±500 N m	±1000 N m	±2000 N m	±5000 N m	±10000 N m
Power supply	DC 24 V ±15％
Consumption current	150 mA or less	180 mA or less		210 mA or less
Output range	±10 V DC　Load resistance must be more than 5 kΩ
Responsivity	5 kHz
Rotation signal	4 pulses per 1 rotation *1 Open collector Max. ratings 30 V, 10 mA
Digital filter	1 Hz to 1 kHz(Depending on settings) PASS 5 kHz
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	7000 rpm	6000 rpm	5000 rpm	4000 rpm
Torsional spring constant	117×103 N m/rad	377×103 N m/rad	717×103 N m/rad	1649×103 N m/rad	3255×103 N m/rad
Maximum torsional angle	4.28× 10-3 rad (0.246°)	2.65× 10-3 rad (0.152°)	2.79× 10-3 rad (0.160°)	3.03× 10-3 rad (0.174°)	3.07× 10-3 rad (0.176°)
Inertia moment	4.70× 10-4 kg m2	2.90× 10-3 kg m2	5.89× 10-3 kg m2	2.01× 10-2 kg m2	5.16× 10-2 kg m2
Ext. dimension (case size/ W×H×D)	67×78× 71 mm	86×103× 98 mm	86×119× 111 mm	97×141× 137 mm	103×166× 162 mm
Total length	217 mm	286 mm	306 mm	387 mm	447 mm
Shaft diameter	φ40 mm	φ60 mm	φ70 mm	φ90 mm	φ110 mm
Weight	Approx. 2.6 kg	Approx. 7.4 kg	Approx. 10.6 kg	Approx. 21.7 kg	Approx. 36.2 kg
Supplied cable	12-conductor flexible cable (2 m) Cable end: 13 wires → Cable length is switchable to 5 m（Option：UTMⅢ-L5）
Optionally available cable	CATM351：12-conductor flexible cable (5 m) Cable end: 13 wires CATM312：12-conductor flexible cable (10 m) Cable end: 13 wires
CE marking certification	2011/65/EU+ (EU)2015/863,2014/30/EU (EN61326-1,EN61326-2-3)

Permissible shaft end load(N)
The allowable shaft end load (N) for radial and thrust is the value that guarantees that the torque output will not be affected by 0.03% FS or less when these loads are applied.

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

Option

Measurement range	±500 N m	±1000 N m	±2000 N m	±5000 N m	±10000 N m
Key Groove	○	○	○	○	○
Rotary encoder	○
Key groove & Rotary encoder	○
Centering location	○
Key groove & Centering location	○
Rotary encoder & Centering location	○
Key groove & Rotary encoder & Centering location	○
Dual range

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Operation manual(PDF)
External dimension	DXF （ZIP）
	PDF
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