TH-3000, TH3000, TH-3000H, TH3000H, Phase Difference type micro torque detector

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TH-3000/3000H series

Micro capacity type
high-speed rotation torque detector

TH-3000/3000H Series

Features
Application example
Application
Overview specification

(TH-3000series 位相差方式微小トルク検出器)

Torque Detector TH-3000

TH-3000 series is a torque detector designed for very low torque (less than 2 N· m) with high response and high accuracy. Two types are available depending on your applications.

The TH-3000 series is standard type, and the TH-3000H is for high speed rotation.

It enables accurate torque detection from small precise machines and other machineries with high resolution. Excellent at response, torque ripple produced in actual rotation speed can also be measured.

The TH-3000 series works for development of a small rotating object which is required energy efficiency and noise-free. Selectable from rated torque 0.05 N· m, 0.2 N· m, 0.5 N· m or 2 N· m.

TH-3000/3000H series is used in combination with the TS-2800 Digital Torque Meter .

Features

· High speed response
Up to 5 kHz of torque variation can be detected. (*1)

· Available up to 25,000 r/min of rotation speed. Best suited to performance test of small motors
TH-3000H series: High-speed type, 25,000 r/min of rated torque
TH-3000 series: Standard type, 15,000 r/min of rated torque

· High accuracy
Measurement in high accuracy of ±0.2 %/F.S. (*2)

· Overload-resistant mechanism
The original overload-resistant mechanism is adopted to protect the high sensitive detector from overload torque. It can withstand against up to 3 Nm of overload torque. (*3)

· Line driver output having great noise resistance
Line driver output with strong noise immunity. Suitable for in-line use.

· Matching is not necessary at changing cable length
The matching is not required when the cable length is changed. Up to 50 m of cable can be used.

· Compatible size with MD series
Easy replacement from Ono Sokki’s long selling torque detector MD series. It has same outer dimensions to the TH-3000/3000H series.

· Easy coupling
Easier to mount coupling because the shaft length to be used has become longer than the previous models.

· High durability
Non-contact detection. No moving part brings ease of maintenance and less trouble.

(*1)	Due to output characteristics of torque meter. The TH-0511 High-speed analog output function (option of the TH-5100 torque meter) is required. The value can be restricted by torsional resonance of equipments.
(*2)	Static calibration (average per second)
(*3)	The value is maximum overload that the TH-3000 series can withstand when an instantaneous torque is applied, not the maximum value to be used continuously.

Application example

•	Testing torque characteristics of small motors (T-N characteristic, torque ripple, cogging torque, pull-in/pull-out torque)
•	Measuring torque ripple at actually used rotation speed.
•	Measuring high precision motor efficiency
•	Measuring transient torque at start-up and stop
•	Measuring constant/changing torque of driving sections such as motors or rollers in precision equipments. (O.A. equipment or camera etc.)

Application

Tracking analysis of torque ripple from a small motor

Overview specification

Model name

TH-3502/3502H

TH-3103/3103H

TH-3203/3203H

Rated torque

0.05 N•m

0.1 N•m

0.2 N•m

Critical (Breakdown) torque (*4)(*5)

180 % of rated torque

Linearity (1 seconds average, static calibration)

±0.2 %/F.S.

Temperature effect at zero point

±0.02 %/F.S./°C

Temperature effect on the sensitivity

±0.02 %/F.S./°C

Rated rotational speed

TH-3000 series:15,000 r/min
TH-3000H series:25,000 r/min

Rotation detector (sold separately)

MD-0115 (number of pulses:120 P/R, output:square wave (0/+5 V))

Signal output

Square wave with phase difference, line driver output

Inertia moment

2.37 × 10^-6 kgm²

Spring constant

2.06 N•m/rad

4.12 N•m/rad

7.63 N•m/rad

Outer Dimensions (main unit)

80(W) × 90(D) × 110(H) mm

Outer Dimensions (shaft)

Shaft length:110 mm, shaft diameter:φ5 (D-cut shaft)

Weight

0.83 kg

Operating temperature /humidity range

0 to +40 °C,
85 %RH or less (with no condensation)

Storage temperature range

-20 to +60 °C

Power supply

Supplied from the torque meter

Accessory

Instruction manual, calibration chart

Applicable torque meter

TS-2800 (*6)

Option

Rotation detector (MD-0115)
Torque signal cable (TH-0100 series)

Model name	Length(m)
TH-0105	5
TH-0110	10
TH-0120	20

Rotation signal cable (MX-8100 series)

Model name	Length(m)
MX-8105	5
MX-8110	10
MX-8120	20

Model name

TH-3503/3503H

TH-3104/3104H

TH-3204/3204H

Rated torque

0.5 N•m

1 N•m

2 N•m

Critical (Breakdown) torque (*4)(*5)

400 % of rated torque

Linearity (1 seconds average, static calibration)

±0.2 %/F.S.

Temperature effect at zero point

±0.02 %/F.S./°C

Temperature effect on the sensitivity

±0.02 %/F.S./°C

Rated rotational speed

TH-3000 series:15,000 r/min
TH-3000H series:25,000 r/min

Rotation detector (sold separately)

MD-0118 (number of pulses:120 P/R, output:square wave (0/+5 V))

Signal output

Square wave with phase difference, line driver output

Inertia moment

7 × 10^-6 kgm²

Spring constant

31.4 N•m/rad

61.8 N•m/rad

127 N•m/rad

Outer Dimensions (main unit)

80(W) × 90(D) × 120(H) mm

Outer Dimensions (shaft)

Shaft length:120 mm, shaft diameter:φ8 (D-cut shaft)

Weight

1.03 kg

Operating temperature /humidity range

0 to +40 °C,
85 %RH or less (with no condensation)

Storage temperature range

-20 to +60 °C

Power supply

Supplied from the torque meter

CE marking

EMC Directive

Accessory

Instruction manual, calibration chart

Applicable torque meter

TS-2800 (*6)

Option

Rotation detector (MD-0118)
Torque signal cable (TH-0100 series)

Model name	Length(m)
TH-0105	5
TH-0110	10
TH-0120	20

Rotation signal cable (MX-8100 series)

Model name	Length(m)
MX-8105	5
MX-8110	10
MX-8120	20

(*4)	The range of output torque value depends on the torque meter connected.
(*5)	The value is maximum overload that the TH-3000 series can withstand when an instantaneous torque is applied, not the maximum value to be used continuously.
(*6)	The modification is necessary when you connect the TH-3000 series to the TH-5100 already you have. Please contact your nearest distributor for more details.

Revised:2021/10/19

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