{"id":288244,"date":"2026-02-12T14:35:30","date_gmt":"2026-02-12T05:35:30","guid":{"rendered":"https:\/\/casscale.net\/product\/sample-product\/eth-torque-measurement-accurate-interference-free-drfn\/"},"modified":"2026-02-12T15:16:42","modified_gmt":"2026-02-12T06:16:42","slug":"eth-torque-measurement-accurate-interference-free-drfn","status":"publish","type":"product","link":"https:\/\/casscale.net\/en\/product\/eth-torque-measurement-accurate-interference-free-drfn\/","title":{"rendered":"ETH \/ Torque measurement accurate + interference-free DRFN"},"content":{"rendered":"

Torque measurement accurate + interference-free DRFN<\/h4>\n

The transducer is suited for the most varied measurement duties on threaded fasteners, to check and adjust assembly tools, like screwdrivers and spanners, and to sense loosening torques, etc. It can also be deployed in blocked mode to test torque wrenches. The device is powered wirelessly and the electrical output is wireless, as well. Hence, there is practically no wear on the device.
\nThis sensor is suited for cyclical as well as continuous testing of tools. As the sensor is designed to be torsionally rigid any errors due to it are minimized.<\/p>\n

Features<\/strong>
\nNo service needed because of contactless data aquisition
\nHigh interference immunity due to amplified active signal
\nHigh accuracy due to frequency modulation and strain gage technology
\nPower supply
\nOptional angle detection<\/p>\n

Technical specifications<\/strong><\/p>\n

\n
\n
\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Measurement range<\/td>\nsee above or datasheet<\/td>\n<\/tr>\n
Supply voltage<\/td>\n12 V DC \u00b1 10%<\/td>\n<\/tr>\n
Power consumption<\/td>\n< 200 mA<\/td>\n<\/tr>\n
Rise time 10 – 90 %<\/td>\n1 ms (1 kHz)<\/td>\n<\/tr>\n
Voltage output<\/td>\n0 – \u00b1 5 V<\/td>\n<\/tr>\n
Internal resistance<\/td>\n100 \u03a9<\/td>\n<\/tr>\n
Ripple<\/td>\n< 100 mVss<\/td>\n<\/tr>\n
Nonlinearity<\/td>\n< 0,15 %<\/td>\n<\/tr>\n
Hysteresis<\/td>\n< 0,1%<\/td>\n<\/tr>\n
Deviation at zero point<\/td>\n\u2264\u00b1 100 mV<\/td>\n<\/tr>\n
Operating temperature<\/td>\n0 – 60 \u00b0C<\/td>\n<\/tr>\n
Compensated temperature range<\/td>\n5 – 45 \u00b0C<\/td>\n<\/tr>\n
Temperature error
\n\u00a0\u00a0\u00a0\u00a0\u00a0zero point
\n\u00a0\u00a0\u00a0\u00a0\u00a0sensitivity<\/td>\n		0,01 % \/ K
\n0,02 % \/ K<\/td>\n<\/tr>\n
Connection<\/td>\n12pin-connector<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Angle option (w)<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n
rev. max.<\/td>\n3000 min\u207b\u00b9<\/td>\n<\/tr>\n
Output<\/td>\nopen-collector<\/td>\n<\/tr>\n
Internal pull up<\/td>\n10 k\u03a9 (5 V level)<\/td>\n<\/tr>\n
External pull up<\/td>\n24 V max.<\/td>\n<\/tr>\n
I max:<\/td>\n20 mA<\/td>\n<\/tr>\n
Pulses\/rev<\/td>\n360<\/td>\n<\/tr>\n
Resolution<\/td>\n1\u00b0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
Detection of direction of rotation:<\/strong><\/td>\n<\/tr>\n
2 pulses 90\u00b0 phase shift
\nChannel A leading for clockwise rotation of drive end<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Ordering Code<\/strong>
\n\"\"
\nAccessories
\n<\/strong>Analycer: ValueMasterbase GMV2
\nCables
\nStatic holders (SH)
\nMechanical Dimensions DRFN<\/strong>
\n\"\"Internal and external square DIN 3121 (ISO standard 1174: 1975)
\nMechanical values and load limits DRFN<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Size<\/strong>
\n(inch)<\/td>\n		n<\/strong>max (l\/min)<\/td>\nTorque<\/strong> range<\/strong>
\n(\u00b1 0 – … Nm)<\/td>\n		Overload<\/strong>
\n(%)<\/td>\n		A<\/strong>
\n(mm)<\/td>\n		B<\/strong>
\n(mm)<\/td>\n		C<\/strong>
\n(mm)<\/td>\n		D<\/strong>
\n(mm)<\/td>\n		E<\/strong>
\n(mm)<\/td>\n		F<\/strong>
\n(mm)<\/td>\n		Weight<\/strong>
\napprox (g)<\/td>\n<\/tr>\n
\u00bc\u201c<\/td>\n12.000<\/td>\n| 1 | 2 | 5 | 10 | 12 |
\n15
\n20<\/td>\n		100
\n70
\n30<\/td>\n		\u00a0<\/strong>
\n62<\/td>\n		\u00a0<\/strong>
\n32<\/td>\n		\u00a0<\/strong>
\n56<\/td>\n		\u00a0<\/strong>
\n16<\/td>\n		\u00a0<\/strong>
\n77<\/td>\n		\u00a0<\/strong>
\n8<\/td>\n		\u00a0<\/strong>
\n300<\/td>\n<\/tr>\n
\u215c\u201c<\/td>\n12.000<\/td>\n| 20 | 30 | 50 |
\n63<\/td>\n		100
\n80<\/td>\n		62<\/td>\n34<\/td>\n52<\/td>\n16,5<\/td>\n82<\/td>\n12<\/td>\n350<\/td>\n<\/tr>\n
\u00bd\u201c<\/td>\n12.000<\/td>\n100
\n160
\n200<\/td>\n		100
\n60
\n30<\/td>\n		\u00a0<\/strong>
\n66<\/td>\n		\u00a0<\/strong>
\n40<\/td>\n		\u00a0<\/strong>
\n57<\/td>\n		\u00a0<\/strong>
\n20<\/td>\n		\u00a0<\/strong>
\n95<\/td>\n		\u00a0<\/strong>
\n16<\/td>\n		\u00a0<\/strong>
\n480<\/td>\n<\/tr>\n
\u00be\u201c<\/td>\n12.000<\/td>\n| 200 | 300 |
\n500<\/td>\n		100
\n50<\/td>\n		66<\/td>\n46<\/td>\n65<\/td>\n23<\/td>\n110<\/td>\n24<\/td>\n800<\/td>\n<\/tr>\n
1\u201c<\/td>\n12.000<\/td>\n1000
\n2000<\/td>\n		50
\n30<\/td>\n		66<\/td>\n52<\/td>\n71<\/td>\n25,5<\/td>\n127<\/td>\n31<\/td>\n1250<\/td>\n<\/tr>\n
1\u00bd\u201c<\/td>\n7000<\/td>\n| 2000 | 3000 |
\n| 4000 | 5000 |
\n| 6500 | 10.000 |<\/td>\n		100
\n50<\/td>\n		\u00a0<\/strong>
\n86<\/td>\n		\u00a0<\/strong>
\n92<\/td>\n		\u00a0<\/strong>
\n108<\/td>\n		\u00a0<\/strong>
\n46<\/td>\n		\u00a0<\/strong>
\n178<\/td>\n		\u00a0<\/strong>
\n44<\/td>\n		\u00a0<\/strong>
\n4800<\/td>\n<\/tr>\n
t<\/td>\n\u00bc\u201c- w<\/td>\n12.000<\/td>\n| 1 | 2 | 5 |
\n10
\n12
\n| 15 | 20 |<\/td>\n		100
\n80
\n50
\n30<\/td>\n		\u00a0<\/strong>
\n66<\/td>\n		\u00a0<\/strong>
\n32<\/td>\n		\u00a0<\/strong>
\n51<\/td>\n		\u00a0<\/strong>
\n16<\/td>\n		\u00a0<\/strong>
\n82<\/td>\n		\u00a0<\/strong>
\n9<\/td>\n		\u00a0<\/strong>
\n250<\/td>\n<\/tr>\n
with rotation angle measuremen<\/td>\n\u215c\u201c- w<\/td>\n12.000<\/td>\n| 20 |30 | 50 |
\n63<\/td>\n		100
\n80<\/td>\n		66<\/td>\n40<\/td>\n59<\/td>\n20<\/td>\n90<\/td>\n12<\/td>\n400<\/td>\n<\/tr>\n
\u00bd\u201c- w<\/td>\n12.000<\/td>\n100
\n160
\n200<\/td>\n		100
\n60
\n30<\/td>\n		\u00a0<\/strong>
\n66<\/td>\n		\u00a0<\/strong>
\n40<\/td>\n		\u00a0<\/strong>
\n59<\/td>\n		\u00a0<\/strong>
\n20<\/td>\n		\u00a0<\/strong>
\n97<\/td>\n		\u00a0<\/strong>
\n16<\/td>\n		\u00a0<\/strong>
\n480<\/td>\n<\/tr>\n
\u00be\u201c- w<\/td>\n11.500<\/td>\n| 200 | 300 |
\n500<\/td>\n		100
\n50<\/td>\n		71<\/td>\n55<\/td>\n74<\/td>\n27,5<\/td>\n117<\/td>\n24<\/td>\n1050<\/td>\n<\/tr>\n
1\u201c- w<\/td>\n11.500<\/td>\n| 1000 |<\/td>\n50<\/td>\n72<\/td>\n56<\/td>\n73<\/td>\n28<\/td>\n132<\/td>\n30,5<\/td>\n1250<\/td>\n<\/tr>\n
1\u00bd\u201c-w<\/td>\n7.000<\/td>\n| 2000 | 3000 |
\n| 4000 | 5000 |
\n| 6500 | 10.000 |<\/td>\n		100
\n50<\/td>\n		\u00a0<\/strong>
\n86<\/td>\n		\u00a0<\/strong>
\n92<\/td>\n		\u00a0<\/strong>
\n108<\/td>\n		\u00a0<\/strong>
\n46<\/td>\n		\u00a0<\/strong>
\n178<\/td>\n		\u00a0<\/strong>
\n44<\/td>\n		\u00a0<\/strong>
\n4800<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

General tolerances DIN 2768-m
\nMechanical Dimensions DRFN Static Holder (SH)<\/strong>
\n\"\"<\/p>\n\n\n\n\n\n\n\n\n\n\n
Model<\/td>\nA<\/strong><\/td>\nB<\/strong><\/td>\nC<\/strong><\/td>\nD<\/strong><\/td>\nE<\/strong><\/td>\nF<\/strong><\/td>\nG<\/td>\n<\/tr>\n
SH-DRFN \u00bc\u201c<\/td>\n71<\/td>\n45<\/td>\n100<\/td>\n50<\/td>\n9<\/td>\n42<\/td>\n10<\/td>\n<\/tr>\n
SH-DRFN \u215c\u201c<\/td>\n74<\/td>\n45<\/td>\n100<\/td>\n50<\/td>\n9<\/td>\n45<\/td>\n10<\/td>\n<\/tr>\n
SH-DRFN \u00bd\u201c<\/td>\n82<\/td>\n45<\/td>\n100<\/td>\n50<\/td>\n9<\/td>\n50<\/td>\n10<\/td>\n<\/tr>\n
\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n
SH-DRFN \u00bc\u201c- w<\/td>\n76<\/td>\n45<\/td>\n100<\/td>\n50<\/td>\n9<\/td>\n43<\/td>\n10<\/td>\n<\/tr>\n
SH-DRFN \u215c\u201c- w<\/td>\n78<\/td>\n45<\/td>\n100<\/td>\n50<\/td>\n9<\/td>\n45<\/td>\n10<\/td>\n<\/tr>\n
SH-DRFN \u00bd\u201c- w<\/td>\n82<\/td>\n45<\/td>\n100<\/td>\n50<\/td>\n9<\/td>\n50<\/td>\n10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The static retainer (SH) is available on customer request for models DRFN \u00be\u201c, 1\u201c, \u00bd\u201c and DRFN \u00be\u201c-w, 1\u201c-w, \u00bd\u201c-w.
\nOrdering Code Static Holder<\/strong>
\n\"\"<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

torque ranges from 1 Nm up to 10.000 Nm
\ntorque with square drive
\nwith or without angle (w) function
\nVariant bracket for quick assembly<\/p>\n","protected":false},"featured_media":288242,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[5476],"product_cat":[3447],"product_tag":[5011],"class_list":{"0":"post-288244","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-eth","7":"product_cat-rotational-torque-sensor","8":"product_tag-rotary-torque-sensor","10":"first","11":"instock","12":"taxable","13":"shipping-taxable","14":"product-type-simple"},"acf":[],"yoast_head":"\nETH \/ Torque measurement accurate + interference-free DRFN - CAS Scale Korea Co., Ltd.<\/title>\n<meta name=\"description\" content=\"torque ranges from 1 Nm up to 10.000 Nm torque with square drive with or without angle (w) function Variant bracket for quick assembly\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/casscale.net\/en\/product\/eth-torque-measurement-accurate-interference-free-drfn\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ETH \/ Torque measurement accurate + interference-free DRFN\" \/>\n<meta property=\"og:description\" content=\"torque ranges from 1 Nm up to 10.000 Nm torque with square drive with or without angle (w) function Variant bracket for quick assembly\" \/>\n<meta property=\"og:url\" content=\"https:\/\/casscale.net\/en\/product\/eth-torque-measurement-accurate-interference-free-drfn\/\" \/>\n<meta property=\"og:site_name\" content=\"CAS Scale Korea Co., Ltd.\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-12T06:16:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/casscale.net\/wp-content\/uploads\/2026\/02\/csm_DRFN_bc5fb23577.png.hw_.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"299\" \/>\n\t<meta property=\"og:image:height\" content=\"289\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/casscale.net\\\/en\\\/product\\\/eth-torque-measurement-accurate-interference-free-drfn\\\/\",\"url\":\"https:\\\/\\\/casscale.net\\\/en\\\/product\\\/eth-torque-measurement-accurate-interference-free-drfn\\\/\",\"name\":\"ETH \\\/ Torque measurement accurate + interference-free DRFN - 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