BEKA BA374NC Скачать руководство пользователя страница 9 | Manualshive

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Содержание BA374NC

Страница 1: ...BA374NC Type nL certified field mounting indicating temperature transmitter Issue 5 3rd December 2003...

Страница 2: ...brating the internal references 6 8 1 Conditioning internal references 6 8 2 Voltage input reference 6 8 3 3 wire RTD reference 6 8 4 4 wire RTD reference 6 8 5 Output current reference 7 Trim Menu 7...

Страница 3: ...tion 6 you will find information on setting up for Section 6 3 Thermocouple input Section 6 4 Resistance thermometer input Section 6 5 Voltage input A word of warning Section 6 8 explains how you can...

Страница 4: ...4...

Страница 5: ...mperature measurement applies linearisation using look up tables stored in permanent memory The resulting temperature is shown on the internal display The 4 20mA output current is proportional to the...

Страница 6: ...components which may generate a spark in normal operation e g switches and switches and potentiometers These approvals confirm that the BA374NC is safe in normal operation and may be installed in Zone...

Страница 7: ...res are surface mounting but may be pipe or panel mounted using the accessory kits described in section 10 Fig 3 BA374NC installation procedure To simplify installation the enclosure may be installed...

Страница 8: ...accuracies Each function in the Programme Menu is summa rised in section 6 1 and includes a cross reference to more detailed information in the following sections Although this simple menu driven syst...

Страница 9: ...9...

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Страница 11: ...can be reached by scrolling through the functions using the Up and Down push buttons as shown in Figs 5A and 5B When returning to the display mode following changes to any parameters the transmitter w...

Страница 12: ...See section 6 2 1 For Thermocouple Inputs tYPE Sensor type Selects the type of thermocouple input See section 6 3 1 dEg Units of display Sets display to o C or o F See section 6 3 2 rESn Display reso...

Страница 13: ...pressing P will reveal a sub menu from which for thermocouple and resistance thermometer inputs the type of sensor may be selected and associated parameters programmed 6 3 For thermocouple inputs 6 3...

Страница 14: ...eit To check or change the display units select dEg from the sub menu and press P to reveal the current setting The setting may be changed by pressing the Up or Down button When the required unit is d...

Страница 15: ...20mA output current The transmitter output current is derived from the transmitter display and will change if the display calibration is changed ZEro defines the display at which the output is 4mA an...

Страница 16: ...ined in a protected sub menu to minimise the possibility of accidental adjustment Select Cond from the menu and press P The transmitter will display 0000 Using the Up and Down buttons and the P button...

Страница 17: ...Pressing P will change the display to 020A and the transmitter output current to approximately 20mA The transmitter output current shown on the external current measuring instrument should be adjusted...

Страница 18: ...re of the primary element operate the Up or Down buttons until the transmitter display is correct Immediately the Up or Down button is operated the annunciator in the top left hand corner of the displ...

Страница 19: ...uple With tHC displayed press P to enter the thermocouple sub menu The first parameter tYPE will be displayed pressing P again will give access to the seven different types of thermocouple Select J us...

Страница 20: ...be less accurate With the transmitter displaying the ZEro prompt and the correct input connected to the transmitter push P which will cause the transmitter to display the thermocouple temperature Adju...

Страница 21: ...osure Before replacing the instrument front cover ensure that the sealing gasket is undamaged and is free from dirt and foreign bodies If a BA374NC fails after it has been functioning correctly the pr...

Страница 22: ...eel and the kit contains a trim plate to conceal the edge of the panel aperture 11 0 ALARMS The BA374NC can be supplied with two solid state single pole alarm outputs Each output may be programmed as...

Страница 23: ...gain only the functions on alarm 1 are listed but alarm 2 has identical facilities 11 2 Summary of programmable alarm functions Display Summary of function EnbL Alarm enable Enables or disables the al...

Страница 24: ...24 Fig 11 Programme structure for optional alarms...

Страница 25: ...rm output status select no nc from the alarm sub menu and press P reveal the current setting The function can be changed by pressing the Up or Down button followed by the E button to return the no nc...

Страница 26: ...cSP prompt in the Programme Menu Code 0000 will disable the security code allowing direct access to the setpoints by pressing the P and Up buttons simultaneously New instruments are supplied with this...

Страница 27: ...input safety parameters are Ui 30V dc Ii 100mA Pi 1 3W This allows the backlight to be powered from a safe area 18 to 30V dc supply as shown in Fig 13 Providing the supply voltage in normal operation...

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