Longtec TR700 - Calibration of the Meter

TR700 Instruction Manual
41
V
0
：Output signal of load cell when weighing system is at no load;.
V
1
：Output signal of load cell when weighing system is at a certain load;
I
0
：The display value of V
0
input to the meter without calibration;
I
1
：The display value of V
0
input to the meter without calibration;
W
0
：The display value of V
0
input to the meter after calibration. (I.e. zero);
W
1
：The display value of V
0
input to the meter after calibration. (I.e. the standard force values which
correspond to the scale division or load).
Note during the calibration:
① W
1
is no less than 100 divisions;
② Resolution ：
dV
WW
VV
/5.0
01
01
µ ≥
−
−
;
③ The range of output signal of Strain gauge load cell : approx. 0～30mV;
Calibration is to realize the new corresponding relation;
④ The input signal of load cell of transmitter should meet：0.05mV≤V
0
≤15mV,V
0
＜V
1
≤32mV.
7.2. Operation of the Calibration
7.2.1. Steps
In the normal state，press to enter the menu，and press 、 to choose“CAL” ，and press
to display“CA L1”; and press 、 to choose“CAL1”、“CAL2”or“CAL3”，and press
to enter calibration parameter setting.