Bridge Boxes

• 

  These are compact 1-point bridge boxes. Switch operation allows easy switching to any of these bridge methods: quarter bridge 2-wire, quarter bridge 3-wire, half bridge, and full bridge. A lead wire can be connected by both soldering and screwing on.
  Discontinued product

  Type	SB-121A/SB-351A
  Number of channels	1 channel
  Bridge method	Quarter Bridge 3-wire (Quarter Bridge with short-circuit bar) SB-121A : 120 Ω SB-351A : 350 Ω
  	Half Bridge, Full Bridge 60 to 1000 Ω
  Connection	Screwing or soldering
  Cable	ø6 mm, 4-core shielded cable 3 m with NDIS 7-pin plug
  Dimensions	35(W) x 39(H) x 91(D) mm (except projections / bracket / cable)
  Weight	Approx. 160 g (except bracket / cable / connector)

   

• Bridge Box SB-120B/SB-350B

  

  These are used when connecting strain gauges by methods such as quarter bridge 2-wire and half bridge.
  They contain resistors for configuring a bridge circuit. Even with full bridge transducers, a bridge box can be used to connect to the terminal where the cable end does not have a connector plug. The bridge configuration is determined by the connection to the terminal.

  Type	SB-120B/SB-350B
  Number of channels	1 channel
  Bridge method	Quarter Bridge, Quarter Bridge 3-wire, Opposite Half Bridge, Opposite Half Bridge 3-wire SB-120B: 120 Ω SB-350B: 350 Ω
  	Half Bridge, Full Bridge 60 to 1000 Ω
  Connection	Screwing or soldering
  Cable	ø9 mm, 4-core shielded cable 3 m with NDIS 7-pin plug
  Dimensions	65(W) x 40(H) x 110(D) mm (except projecting parts)
  Weight	Approx. 0.7 kg

   

• Bridge Box SB-128A/SB-128A-10/SB-358A

  

  These are bridge boxes of 8-channel and 10-channel configuration.

  Type	SB-128A/SB-128A-10/SB-358A
  Number of channels	8 channel (SB-128A/SB-358A) 10 channel (SB-128A-10)
  Bridge method	Quarter Bridge, Quarter Bridge 3-wire, Opposite Half Bridge, Opposite Half Bridge 3-wire SB-128A/SB-128A-10: 120 Ω SB-358A: 350 Ω
  	Half Bridge, Full Bridge 60 to 1000 Ω
  Connection	Screwing or soldering
  Dimensions	SB-128A/SB-358A : 240(W) x 33(H) x 150(D) mm (except projecting parts) SB-128A-10 : 300(W) x 33(H) x 150(D) mm (except projecting parts)
  Weight	Approx. 2 kg
  Connection cable	CR-612 attached

   

• Bridge Box SB-123A/SB-353A

  

  This is a compact universal bridge box employing a clamp-type quick-connecting terminal. Slide switches allow easy switching to any of six bridge methods: quarter bridge 2-wire, quarter bridge 3-wire, half bridge, full bridge, opposite arm half bridge 2-wire, and opposite arm half bridge 3-wire.

  Type	SB-123A/SB-353A
  Number of channels	1 channel
  Bridge method	Quarter Bridge, Quarter Bridge 3-wire, Opposite Half Bridge, Opposite Half Bridge 3-wire SB-123A : 120 Ω SB-353A : 350 Ω
  	Half Bridge, Full Bridge : 60 to 1000 Ω
  Connecting terminal	Clamp type quick connecting terminal
  Dimensions	30(W) x 30(H) x 90(D) mm (except projecting parts)
  Weight	Approx. 100 g
  Option	CR-612 attached

• Bridge Box SB-120DG-1R2/1R3/SB-350DG-1R2/1R3/SB-120DG-4R

  

  These are bridge boxes that allow clamp-type quick connection to a measuring instrument. Since no cable is required between the instrument and the bridge box, the instrument can be placed compactly.
  SB120DG-1R2 accommodates quarter bridge 2-wire system, and SB120DG-1R3 accommodates quarter bridge 3-wire system.

  Type	SB-120DG-1R2/ SB-350DG-1R2	SB-120DG-1R3/ SB-350DG-1R3	SB-120DG-4R
  Bridge method	Quarter Bridge 2-wire 120 Ω/350 Ω	Quarter Bridge 3-wire 120 Ω/350 Ω	Full bridge 120 Ω/350 Ω
  Number of channels	1 channel
  Connecting terminal	Clamp type quick connecting terminal
  Dimensions	17(W) x 18(H) x 63(D) mm (except projecting parts)	22(W) x 18(H) x 63(D) mm (except projecting parts)
  Weight	Approx. 50 g

   

• Bridge Box SB-120SB

  

  A single SB-120SB bridge box can be used as a relay for a strain gauge type transducer with NDIS connector. Slide switches allow easy switching of bridge method. A lead wire can be connected by both soldering and screwing on.
  Number of input points for a single bridge box can be any of five types, from 2 points to 10 points.

  Type	SB-120SB-8/SB-120SB-10
  Number of channels	2 channels : SB-120SB-2 4 channels : SB-120SB-4 6 channels : SB-120SB-6 8 channels : SB-120SB-8 10 channels : SB-120SB-10
  Input Connector	Terminal : M3 x 5P terminal Connectors : NDIS 7P connector receptacle
  Bridge method	Quarter Bridge 3-wire (Quarter Bridge with short-circuit bar) 120 Ω
  	Half Bridge, Full Bridge 60 to 1000 Ω
  Connection	Screwing, soldering or plugging
  Dimensions	SB-120SB-8 : 205(W)×35(H)×100(D)mm SB-120SB-10 : 255(W)×35(H)×100(D)mm
  Weight	SB-120SB-8 : Approx. 1.2kg SB-120SB-10 : Approx. 1.4kg
  Option	CR-612 attached (8pcs. for SB-120SB-8, 10pcs. for SB-120SB-10)

   

• Bridge Box SB-122A

  

  This bridge box can be configured in 2, 4, 6, 8 and 10 channels. The bridge method can easily be chosen among quarter bridge, quarter bridge 3-wire, half bridge and full bridge by the setting of switches.

  Type	SB-122A-2/4/6/8/10
  Number of channels	SB-122A-2 : 2 channel SB-122A-4 : 4 channel SB-122A-6 : 6 channel SB-122A-8 : 8 channel SB-122A-10 : 10 channel
  Bridge method	Quarter Bridge 2-wire, Quarter Bridge 3-wire 120 Ω Half Bridge, Full Bridge 60 to 1000 Ω
  Connection	Screwing or soldering
  Dimensions	SB-122A-2 : 55(W)×35(H)×100(D)mm SB-122A-4 : 105(W)×35(H)×100(D)mm SB-122A-6 : 155(W)×35(H)×100(D)mm SB-122A-8 : 205(W)×35(H)×100(D)mm SB-122A-10 : 255(W)×35(H)×100(D)mm
  Weight	SB-122A-2 : Approx. 0.4kg SB-122A-4 : Approx. 0.6kg SB-122A-6 : Approx. 0.8kg SB-122A-8 : Approx. 1.0kg SB-122A-10 : Approx. 1.2kg
  Option	CR-612 attached (the same quantity as the number of channels)

   

• Bridge Box SB-120PY

  

  This is a bridge box capable of measurement in post-yield (large strain) range. Bridge method is chosen by the setting of switches, and measurement range between normal and large strain is also set by a switch. When setting the large strain measurement, sensitivity is decreased to 1/10 of the normal sensitivity. Using a dynamic strainmeter having measurement range of 20000 x 10^-6 strain for example, it is possible to measure up to 200000 x 10^-6 strain. The large strain measurement is possible in quarter bridge method. The number of channels is available in 2, 4, 6, 8 and 10.

  Type	SB-120PY-2/4/6/8/10
  Number of channels	SB-120PY-2 : 2 channel SB-120PY-4 : 4 channel SB-120PY-6 : 6 channel SB-120PY-8 : 8 channel SB-120PY-10 : 10 channel
  Bridge method Normal range	Quarter bridge 2-wire (Quarter bridge with short-circuit between B and C), Quarter bridge 3-wire 120 Ω Half bridge, Full bridge 60 to 1000 Ω
  Bridge method Large Strain range	Quarter bridge 2-wire (Quarter bridge with short-circuit between B and C), Quarter bridge 3-wire 120 Ω
  Connection	Screwing or soldering
  Dimensions	SB-120PY-2: 55(W)×35(H)×100(D)mm SB-120PY-4: 105(W)×35(H)×100(D)mm SB-120PY-6: 155(W)×35(H)×100(D)mm SB-120PY-8: 205(W)×35(H)×100(D)mm SB-120PY-10: 255(W)×35(H)×100(D)mm (except projecting parts)
  Weight	SB-120PY-2: 0.4kg SB-120PY-4: 0.6Kg SB-120PY-6: 0.8kg SB-120PY-8: 1.0kg SB-120PY-10: 1.2kg
  Option	CR-612 attached (the same quantity as the number of channels)

   

• SB-120DD-1R/4R/SB-350DD-1R

  This is a bridge box for measuring instruments, compact strain recorder DC-204R, and multi-recorder TMR-321/-323/-221/-223 using a miniplug (PRC07-P8M). Since no cable is required between the instrument and the bridge box, the instrument can be placed compactly. SB-120DD-1R and SB-350DD-1R accommodate quarter bridge 3-wire system (quarter bridge 2-wire accommodates B-B' short) and half bridge methods, and SB-120DD-4R accommodates full bridge method.
  When using DC-204R/-204Ra, a CR-6185 sensor cable enables the remote sensing function between an instrument and the bridge box, removing any causes of error from conductor resistance in the cable or ambient temperature change to achieve highly accurate measurement.

  Number of channels	1 channel
  Bridge method
  Quarter bridge 3-wire	SB-120DD-1R	120Ω
  	SB-350DD-1R	350Ω
  Half bridge	SB-120DD-1R	120、350Ω
  	SB-350DD-1R	120、350Ω
  Full bridge	SB-120DD-4R	120 ～ 1000Ω
  Connection	Screwing
  Operational temperature/humidity range	0 to +50℃ 85%RH or less (except condensation)
  Dimensions	14 (W) × 19 (H) × 59 (D) mm (except projections)
  Weight	Approx. 22 g