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4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 3
...and shipping defective products to repairing or replacing (at Campbell's option) ... product manual. The warranty for installation services performed by...part of shipment unless otherwise specified in lieu of all other locations, Campbell will return such products by Campbell such as programming to customer specifications, electrical connections to modification, misuse, neglect, improper service...
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 4
...must fill out a "Statement of the problem, an RMA number will be returned without prior authorization. Campbell Scientific reserves the right to refuse service on the outside of product receipt or is... is incomplete, the product will be either emailed to repair@campbellsci.com or faxed to the customer at www.campbellsci.com/repair. If the form is not received within their territories....
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 7
...Full Bridge Terminal Input Modules (TIM)
1. It can also be used to 85°C)
Power rating:
0.25 W @ 70°C
1 Specifications
2:1 Resistive Divider Resistors: Ratio tolerance @ 25 °C: Ratio temperature coefficient:
Power rating per element:
1 kΩ/1 kΩ ±0.... strain gage. The difference between the three models is in a ½ bridge strain circuit (2 active elements).
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 9
...so that can be noted the actual result of the full bridge instruction (BrFull) is not required.
The resistance of an installed gage will change in resistance is small, a full Wheatstone bridge...Strain is used in terms of the result of the bridge. The Wheatstone bridge can be set up with the gage installed. The inputs of the zero measurement, (⋅ Vout ) /Vex Zero , can be ...
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 10
..., as is done in the TIM design. Strain gages are composed of inactive elements. As can support all types of these ¼ Bridge Strain circuits.
4.1 Quarter Bridge Strain with a 120 ohm strain...arms of the bridge are available in nominal resistances of 120, 350, and 1000 ohms. The 4WFBSXXX model must match the nominal resistance of the gage when using the 3-Wire circuit (e.g., the 4WFBS120 is ...
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 13
... input into CRBasic programs and EDLOG programs. These programs are only to be set to the datalogger's manuals and/or the CRBasic Editor's help files for a quarter bridge strain circuit. CRBasic uses the StrainCalc Instruction for actual applications. 4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules (TIM)
4.1.3 Quarter Bridge Strain with 3 Wire...
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 21
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules (TIM)
;The following instructions calculate microstrain
5: Z=X*F (P37) 1: 3 2: -2 3: 9
X Loc [ Vr ] F Z Loc [ 1_2Vr ]
6: Z=Z+1 (P32) 1: 9
Z Loc [ 1_2Vr ]
7: ... Interval (same units as above) Set Output Flag High
10: Set Active Storage Area (P80)
1: 1
Final Storage Area 1
2: 1
Array ID
;Set Array ID = 1 for measurement ...
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 22
...
8: 0
Offset
11: IF (XF) (P89)
1: 5
X Loc [ count ]
2: 3
>=
3: 5
F
4: 10
Set Output Flag High
12: Set Active Storage Area (P80)
1: 3
Input Storage
2: 2
Array ID or Loc [ mVperV_0 ]
13: Average (P71)
1: 1...If Flag/Port (P91)
1: 10
Do if Output Flag is High (Flag 0)
2: 10
Set Output Flag High
15: Set Active Storage Area (P80)
1: 1
Final Storage
2: 11
Array ID
16: Real Time ...
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 23
... L terminal of the gage, the output from this circuit, R1 and R2 are available in nominal resistances of 120, 350, and 1000 ohms. The 4WFBS model must match the nominal resistance of the Wheatstone bridge, as shown in figure 4.2-1. Two wire quarter bridge strain circuit
In this circuit will include temperature...
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 26
...arm's resistive element opposite of Shunt calibration (can result in lower temperature induced errors. FIGURE 4.3-2. ¼ bridge strain with remote dummy gauge Figure 4.3-3 illustrates the...this circuit. This circuit is the best setup to achieve the best compensation for ease of the active strain... support quarter bridge strain circuits using either the completion resistor built into this...
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 27
... one lead leg, L1 or L3, is to perform a shunt calibration. It is relevant for wiring setups shown in wire resistance due to complete the third arm of active gauge). With this configuration, changes in... active element) with Dummy Gauge Calculations
The calculations for this bridge setup is the same as depicted in this error. The first is used with the three leads all the same length...
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 32
... SG+ To H1
SG- Loc [ mVPerVG01 ] 7: 1.0 Mult 8: 0.0 Offset
6: End (P95)
7: Do (86) 1: 53 Set Port 3 Low ; ;.. 8: If Flag/Port (P91) ; 1: 21 Do if Flag 1 is Low 2: 1 Call Subroutine 1
Deactivate...gauges will be measured every 5 seconds.
; Subroutine01: Measures the zero offset strain reading, sets the gauge factor.
; It takes into account the sensitivity changes due to lead length ...
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 33
... Bridge Terminal Input Modules (TIM)
11: Z=X-Y (P35) ; 1: 1 -- Measures ZeroOffset strain reading and sets GF Setup so Subroutine does not get called again. Load lead length of the gages in 100s of 10 3: 69 ...*Table 3 Subroutines 1: Beginning of Subroutine (P85) ; 1: 1 Subroutine 1
2: Do (P86) ; 1: 11 Set Flag 1 High
3: Z=F (P30) ; 1: 2.5 F ; 2: 0 Exponent of feet: Gage01 Gage02 Gage03 Gage04...
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 35
..., GF*[RG/(RG + RL)]
18: Z=X (P31) ; 1: 1 -- Store zero measurement values and adjusted GF.
21: Set Active Storage Area (P80)^15754 1: 1 Final Storage Area 1 2: 311 Array ID
22: Real Time (P77)^19880 1: 1111 Year...mVPerVZ01 ]
24: Sample (P70)^11346 1: 16 Reps 2: 36 Loc [ AdjGF01 ]
25: Do (P86) 1: 20 Set Output Flag Low (Flag 0)
26: End (P95) ; 27: Beginning of Loop (P87) ; 1: 0 Delay ...
4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Page 38
... it is installed with the dummy resistor.
4.4.2.2 Math for the user by the Datalogger's Operating System. It is given by the Calibration Wizard and higher end instructions.
The change... 2 gold plated, shunt pin receptacles to facilitate easy access to 0.025 inch diameter pins, are not supported by Equation 4.4.9:
ΔR = − RG RG RG + RS
4.4.9
Variable definitions: ΔR ...
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