HH 504 / HH 505 CALIBRATION PROCEDURE
Note: The following calibration procedure should perform only by qualified technicians who have access to the items as following.
Equipment: The class of calibrator had better 10 times greater than the measured meter.
1.Turn off the meter then set the adjusted jumper to J1.
2.Insert the 383.00Ω calibrator to the T1 then turn on the meter, the main display reading reads 1830.0 then press " ENTER " key.
3.The second display is stabilized (about 5sec.), then press " ENTER " key when the meter auto power off then set the jumper back to J3 position.
4.Turn on the meter then Insert the 100.00Ω calibrator. The display reading reads 0°C if the calibration procedure is right.
G
+
_
383.00CALIBRATOR
| + RW1 |
|
| _ RW2 | 383.00 |
|
| |
| G RW3 | |
℃ | Pt385 | Pt3926 |
18.521Ω | 16.996Ω | |
60.256Ω | 59.479Ω | |
0℃ | 100.000Ω | 100.000Ω |
100℃ | 138.505Ω | 139.272Ω |
200℃ | 175.856Ω | 177.362Ω |
300℃ | 212.052Ω | 214.275Ω |
400℃ | 247.092Ω | 250.018Ω |
500℃ | 280.977Ω | 284.591Ω |
600℃ | 313.708Ω | 317.994Ω |
700℃ | 345.280Ω | ― |
800℃ | 375.700Ω | ― |
RW1=RW2=RW3
RW=WIRERESISTANCE
1