1No LCD display module transmitter button operation

When the transmitter does not have a LCD display module, use the built-in buttons on the circuit boardSandZThe following operations can be performed.

1.1 zero clearing

Ensure that the transmitter is powered on and under zero pressure while holding downSbutton andZbutton5Press and hold both buttons simultaneously for at least one second, then release both buttons simultaneously and hold them down again3In about seconds, the transmitter will reset to the current pressure value.

1.2Lower limit calibration (zero point active migration)

Ensure that the transmitter is powered on and under pressure at the lower range limit, while holding downSbutton andZbutton5Press and hold both buttons simultaneously for at least one second, then press and hold againZbutton3In about seconds, the transmitter uses the current pressure as the lower limit of the range, butThe range of the transmitter will not changeFor example, the range of the transmitter is0-5kPaThe current pressure is-1kPaAfter performing this operation, the range of the transmitter changes to1-4kPa.

1.3 Upper limit calibration (full point calibration)

Ensure that the transmitter is powered on and under pressure at the upper range limit, while holding downSbutton andZbutton5Press and hold both buttons simultaneously for at least one second, then press and hold againSbutton3In about seconds, the transmitter uses the current pressure as the upper limit of the range, butThe lower range limit of the transmitter will not changeFor example, the range of the transmitter is0-5kPaThe current pressure is4kPaAfter performing this operation, the range of the transmitter changes to0-4kPa.

2Equipped with LCD display module and transmitter button operation

2.1 Button Instructions

The buttons on the LCD display moduleSandZSimilarly, it is possible to achieve the1The function described in the item.

2.2 Configuration operation

When the transmitter is in the powered measurement state, long pressMEnter the parameter settings menu with the key.

2.3Set examples

2.3.1Modify the lower limit of the measuring range

lLong press on the main measurement interfaceMEnter the menu selection state, which flashes and displaysPOINTIf you press at this timeSPress the key to exit the settings and return to the measurement display state;

lPress in sequenceZKey, when the LCD flashes displayLOWERWhen, pressMPress the key to enter the lower range setting;

lPress nowSThe number digits that need to be modified for the key cycle flashing, pressZPress the key to select the digit+1; PressMThe key will save the settings and returnSettings Menu.

Instructions:1When the decimal point is selected, it will flash and display. PressZThe decimal point position of the key will move in a loop;

2When the negative sign is selected, it will flash and display. PressZThe key can change the negative sign state. When the negative sign is valid, the flashing frequency of the negative sign increases, and when the negative sign is invalid, the flashing slows down.

2.3.2About density setting instructions

Density setting only applies to unitsMandmmEffective, invalid for other units, and calculate the main variable value and range upper and lower values according to the following formula.

lWhen the unit isMTime:

h=P/(ρ*g)

h: Height(unit:rice)；

P:Measure pressure value(Unit(KPa)；

ρ:density(Unit: gram/cubic centimeter)；

g:9.80665；

lWhen the unit ismmTime:

h=1000*P/(ρ*g)

h: Height(unit:millimeter)；

P:Measure pressure value(Unit(KPa)；

ρ:density(Unit: gram/cubic centimeter)；

g:9.80665.

2.3.3Restore factory settings

If the instrument parameter settings are incorrect or the parameters are out of order, the display header buttons can be used to restore the factory values, and then the parameters can be reset according to the actual working conditions. The method is as follows:

●Enter damping time（DAMP）Parameter setting status, set damping to“801.xx”(x:any number)；

●pressMPress the key to confirm, and the instrument will return to factory settings（Recovery success promptFACTORY）；

●“801.xx”The damping time parameter was not actually saved because the effective range of damping time is0-64Seconds;

●Reset parameters based on actual operating conditions.

2.3.4Other instructions

1）UnitincludingKPaThemA、%ThemmTheMThemH2OTheMPa℃ (temperature unit)mmH2OThePSITheBARThemBARThePaThekg/cm².

2）Change addressWhen pressing simultaneouslyZ+MPress the button to enter the address settings option, then pressZPress the button to modify the address（0~15），MPress the button to save and return. When pressing simultaneouslyS+MPress the button to force the address to be set to0(Hidden function).

When the instrument is in parameter setting state, if90If no button is pressed for about seconds, the instrument will automatically return to the main measurement state, and the displayed setting parameters will not be saved.