1st, why I when changes delivering and the computer corresponds, frequently corresponds the defeat?
When bumps into this question, first inspects changes delivering whether works normally, corresponds Modem whether connects? If two all OK, then line of following several inspection:
A) enters the on-line test contact surface, carries on the on-line test, if or cannot pass, please inspect changes the delivering motherboard, corresponds Modem, and the computer Com mouth;
B) if on-line sometimes can pass, but sometimes cannot pass, possibly corresponds Modem to have the question.
C) if on-line may pass, moreover the partial functions may correspond, the partial functions are unable to correspond, then possibly is changes the delivering software edition to be lower, does not support this function.

2nd, how carries on the passive calibration?
When carries on the measuring range migration, also does not want again or does not have the means to carry on the input pressure calibration below, may use the means to carry on the passive calibration:
A) first reads out changes the delivering interior establishment the 4mA pressure value and the 20mA pressure value, looked whether with actual 4mA pressure value and 20mA pressure value consistent, if is consistent, then directly changes the 4mA pressure value and the 20mA pressure value after the measuring range migration pressure value then.
B) if changes the delivering interior establishment the 4mA pressure value and the 20mA pressure value, is inconsistent with the actual 4mA pressure value and the 20mA pressure value, may first converts the actual 4mA pressure value and the 20mA pressure value to changes the delivering interior establishment the 4mA pressure value and the 20mA pressure value, after then converts the measuring range migration pressure value, will convert the value to change to the 4mA pressure value and the 20mA pressure value then may.
For example: Supposition changes the delivering measuring range is -10bar - 50bar, wants to migrate the measuring range 10bar-40bar, the read-out changes the delivering interior establishment the 4mA pressure value and the 20mA pressure supposition is 0-10Kpa, carries on the following conversion: - 10bar and 0 corresponds,50bar and 10Kpa corresponds, through the computation, may calculate the conversion equation is: After P folds = P to be solid /6 + 1,0/6 ('P to fold ' is conversion pressure value, 'P solid ' is actual pressure value), may calculate the conversion after the equation the 4mA pressure value to be supposed to be: 10/6+10/6=3.333KPa, after the conversion the 20mA pressure value should be: 40/6+10/6=8.333KPa, thereupon will be allowed to change the delivering interior through configuration software the 4mA pressure value establishment will be 3.333, the 20mA pressure value establishment is 8.333 then may.
Specially explained that,
1) the measuring range migration only can migrate in the original measuring range scope, if migrates surpasses the original measuring range scope, then changes delivering linearity to change can change the difference.
When 2) carries on the passive calibration, the measuring range migration may not oversized, migrates compared to should better not have to be bigger than 3:1, crosses the congress to create changes the delivering output not to be unstable, moreover the resolution is lower. The big migration in must first carry on the gain establishment compared to the measuring range migration, then carries on the input pressure calibration.
3rd, why do I change delivering always to be at report to the police the condition?
Please inspect the sensor to work whether normally, if is normal, please carry on the following inspection:
A) if the screen demonstrated has EEPROM the Error information, changes the delivering motherboard to save the chip damage, please repair a second time;
B) if demonstrates Err-4 or E44-5, then please inspect the internal establishment parameter is whether correct? May the readout carry on the inspection from the product establishment window, after discovered the wrong data, carries on the corresponding revision. Or when changes the delivering on electricity, if is two pressed keys converters, holds down [ Z ] the key 5 seconds, until the screen demonstrated "defau ok" then completely restores to leaves the plant the establishment. (Changes delivering regarding three pressed keys, according to [ Mode ] key 5 seconds, until screen demonstrated "defau ok" then completely restores to leaves the plant establishment)

4th, why do I from change the delivering read-out zero pressure value and the full spot pressure value with change the delivering actual measuring range not to tally, even differs very in a big way?
This is normal, changes delivering when leaving the plant, only if the user specially requests, its internal parameter all establishes as unified tacitly approves the parameter, this certainly does not affect changes the delivering actual output.

5th, when carries on the input pressure calibration, why calibrates the value always is "0,000" or "FFFF"?
1) please inspect the sensor whether works normally?
2) regarding uses to jump the line establishment intelligent board, please inspect jumps the line to establish whether correctly?
3) if is with the internal constant pressure source or the permanent current source to the sensor power supply, please inspect the constant pressure source or the permanent current source value are whether correct?
4) please inspect increases establishes whether correctly?

6th, how did I know changes the delivering output magnitude of current and the theory value deviation is causes by the sensor non-linear deviation, or because changes the delivering output current calibration not to cause?
May carry on often value electric current output inspection electric current output linearity, inspects 4mA,8mA,12mA,16mA the,20mA output current is whether accurate, if deviation oversized, then changes the delivering output current not to calibrate, must recarry on the output current calibration.
If electric current output linearity also answers the purpose, then changes the delivering output current the deviation is causes by the input pressure, please carry on the input pressure calibration, when the necessity please carry on the linearity to compensate or temperature compensation.

7th, what situation should carry on the output current calibration in?
Please refer to question 6.

8th, I want to change the 4mA pressure value and the 20mA pressure value, but does not want reto carry on the input pressure calibration?
Please refer to question 2

Before 9th, which questions carries on the data restores should pay attention to?
Must through configuration software examine changes the delivering production date, if production date known, may carry on the data to restore, if production date unknown, then should change delivering to be unable to carry on the data restoration.