Unipulse F701+ User Manual

128
7 Troubleshooting
128
Troubleshooting
Chapter
7
■ Table for relationship between resistance value for connection and input signal
- The numerical values in this table are the ones when one 350Ω series load cell is used.
- The temperature coefficient of the resistance connected here affects the indicator accuracy
directly.
Use a minimum 50ppm/°C resistance(5ppm/°C recommended).
Calibration
error 6
Load cell output value has not reached the span adjustment range of F701+.
Confirm that the load is applied to the load cell correctly or that the load cell
output is capable of reaching t
he span adjustment range, and then re-perform
span calibration.
Calibration
error 7
The load cell output is on the minus (negative) side. Confirm that load is
applied to the load cell in the correct direction or that the wiring for load cell
+SIG and -SIG are not reversed,
and then re-perform Span Calibration.
Calibration
error 8
Load cell output exceeds the span adjustment range of F701+. Confirm that
the
load is applied to the load cell correctly or that the rated output value of the
load cell is within the span adjustment range, and then re-perform span
calibration.
Calibration
error 9
The value indicated on F701+ fluctuates during calibration, and calibration
cannot be completed properly. Adjust the parameters for stable settings (time
and range), confirm that "STAB" lights up, and then re-pe
rform calibration.
Resistance value Input conversion distortion
Calculation
value
Approximate
value
μ-STRAIN mV/V
875 kΩ 866 kΩ 200 0.1
437 kΩ 442 kΩ 400 0.2
291 kΩ 294 kΩ 600 0.3
219 kΩ 221 kΩ 800 0.4
175 kΩ 174 kΩ 1000 0.5
146 kΩ 147 kΩ 1200 0.6
125 kΩ 124 kΩ 1400 0.7
109 kΩ 110 kΩ 1600 0.8
97 kΩ 97.6 kΩ 1800 0.9
87.3 kΩ 86.6 kΩ 2000 1.0
79.4 kΩ 78.7 kΩ 2200 1.1
72.7 kΩ 73.2 kΩ 2400 1.2
67.1 kΩ 66.5 kΩ 2600 1.3
62.3 kΩ 61.9 kΩ 2800 1.4
58.2 kΩ 57.6 kΩ 3000 1.5
54.5 kΩ 54.9 kΩ 3200 1.6
51.3 kΩ 51.1 kΩ 3400 1.7
48.4 kΩ 48.7 kΩ 3600 1.8
45.9 kΩ 46.4 kΩ 3800 1.9
43.6 kΩ 43.2 kΩ 4000 2.0
41.5 kΩ 41.2 kΩ 4200 2.1
39.6 kΩ 39.2 kΩ 4400 2.2
37.9 kΩ 38.3 kΩ 4600 2.3
36.3 kΩ 36.5 kΩ 4800 2.4
34.8 kΩ 34.8 kΩ 5000 2.5

Unipulse F701+ Specifications

General

Brand	Unipulse
Model	F701+
Category	Measuring Instruments
Language	English