Made in Japan
Manufacturer: Tohnichi
Model: CSPFHW

Double tightening detection provides highly reliable prevention of missed tightening (Pokayoke). The R-256FH receiver has been upgraded to the downward compatible R-CM. This upgrade offers New Telecommunication Mode to increase transceiving distance, and lets operators monitor transmitter battery voltage.

[The Double Tightening Detection System] The CSPFHW series uses a gyro sensor to detect angle data, to make double tightening judgments.

• At stage 1, angle detection starts when trigger torque is reached, and a light clicking sensation is felt (at position “a”). At stage 2, when the set torque is reached, a strong clicking sensation with a distinctive clicking sound is felt (at position “b”).

• If the rotated angle is less than the set double tightening judgment angle (a – b’), double tightening is determined, resulting in a “NG” (No Good) judgment.

 

Shown with LED illuminated

 

Shown with M-FH radio module on receiver R-CM and AC adaptor BA8 in use

 

Example of CSPFHW model in use

Application

• Prevents human tightening errors (Pokayoke)
• Double Tightening Prevention

Features

• Comes with double tightening detection to permit highly reliable “pokayoke” error proofing.
• When the CSPFHW is used to retighten bolts and nuts that have already been tightened once, the action will be judged as double tightening, causing NG (“No Good”) to be displayed and the LED light to show red.
• The large LED makes it easy for the operator to check close at hand the telecommunication status and whether double tightening has occurred.
• New Communication Mode permits use of the new R-CM Wireless Receiver with Interchangeable Modules. New Communication Mode extends wireless distance to around 20–30 meters, while also permitting R-CM monitoring of the transmitter battery voltage. This helps prevent transmission failures caused by unexpected reduction in voltage.
• You can use the same receiver (R-CM) and the same setting controller (SB-FH2) for wireless CH settings as those for the FHM/FH wireless Pokayoke (error proofing) torque wrench. This gives you double tightening detection with the purchase of only the torque wrench, reducing purchase cost.
• Traceability is connected. Torque wrenches can be identified with a 7-digit alphanumeric character ID or 3-digit ID, so the torque wrench used for tightening can be specified. This permits traceability. * The ID can be set using special software downloaded for free from “Software” at the bottom of this page.
• Battery life: Can be used approx. 150,000 times. One AAA alkaline battery should provide enough power for more than 150,000 operations. For example, even if the number of times is 3,600 per day, the battery can be used for at least two months. This reduces battery expense and the number of battery replacements.
• The model features interchangeable heads, permitting a wide variety of tightening tasks using different heads, including open end, ring head, and ratchet head.
• The CSPFHW series is compliant with ISO 6789:2017 starting January 2022. For more information, see the technical data “Initiatives for ISO 6789:2017” at the bottom of the screen.

Demonstration video

CSPFHW “Pokayoke” (error proofing) wireless pre-set torque wrench with double tightening detection

Specifications

Note:

The CSPFHW conforms to wireless technical standards in Japan (TELEC), the U.S. (FCC), Canada (IC), the EU (CE), Thailand (NTC), Taiwan (NCC), South Korea (KC), India (WPC), Indonesia (SDPPI), Singapore (IMDA), and South Africa (ICASA). (Information valid as of July 2021.) However, certain restrictions apply regarding export procedures to Indonesia (SDPPI), so please check with Tohnichi for more information. Can also be used in China.

One R-CM receiver can communicate with a maximum of four torque devices, but it does not function with a mixture of new and old communication modes. (You can use the SB-FH2 setting controller to switch FHM and CSPFHW to the older communication mode).

The CSPFHW series is compliant with ISO 6789:2017 starting January 2022. Calibration Certificates will be different from older products.

Standard accessory:

One AAA alkaline battery (for testing)

Protective cover FHW-PCV: 1

Dimensions

CSPFHW dimensional drawing

FHW transmitter component