Define Instruments LPI610 Operating Manual

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LPI610

4–20mA Display (Front Mount)

The LPI610 4–20mA display is ideal for

displaying a variety of process variables,

and is easy to scale to your required

engineering units.

› Front mount unit takes up virtually

no space behind the panel

› Loop powered display backlight

› Protection against reverse wiring

and accidental 24V supply

Contents

1 - Speci cations ............................... 1

2 - Installation ................................... 2

3 - Display .......................................... 4

4 - Setup & Calibration ...................... 5

A - Appendix A - Errors ...................... 9

SPECIFICATIONS

Input con guration Series connection to 4–20mA DC current loop.

Powered from the input signal Min input 3.5mA, max continuous input 100mA.

3.6V drop plus 40Ω (equivalent to 4.3V at 20mA). Typically load is 220Ω.

Full scale ranges Adjustable to any display span between -99,999 and +999,999.

Max resolution (50,000 counts) from any signal input span between 3.5 and 27.5mA.

A/D converter 16 bit Sigma Delta

Accuracy ±0.02% of reading (plus 2 digits)

Temperature range -10 to 60°C (14 to 140°F)

Temperature coe cient Typically 30ppm/°C (plus 0.1 counts/°C for zero o set).

Conversion rate 10 readings per second

Protection Protected against reverse wiring and accidental 24V supply

Case dimensions (H x W x D) 72 x 144 x 25mm (2.83 x 5.67 x 0.98"). Depth dimen-

sion includes foam seal.

IP65 rated For dust and water resistance.

Display 17.5mm Liquid Crystal Display. Select up to 4 decimal places

Units Select KG, LB, T or a custom character (i.e. C, F, L etc)

+/- Over-range Display shows UNDER or OVER

INSTALLATION

2.1 - Mounting

This unit is supplied with two stickers to

assist with installation.

Apply the FRONT sticker if you are drill-

ing from the front of the panel, and the

BACK sticker if you are drilling from the

back of the panel.

A er drilling, remove the installation sticker and clean o any sticky residue.

Failure to remove the front sticker may compromise the foam seal.

2.2 - Wiring

Included with your LPI610 is a wiring sticker, which should be applied to the back

panel as shown, a er the unit has been mounted.

2.3 - 4~20mA input signal

The LPI610 is powered from the 4~20mA loop input signal and

connects to Pins 1 & 2, as shown.

2.4 - Display lock

The display lock pins (Pins 3 & 4) can be shorted out to lock all buttons

on the front panel (except for the

vents tampering a er the unit has initially been con gured.

You can also connect a switch between Pins 3 & 4 to enable toggling

of this feature.

BACKLIGHT button). This pre-

DISPLAY

3.1 - Buttons

BACK: Steps backward in the setup menu, without saving changes.

SEL/MENU: Accesses the main menu from the operational display. Also used to

select your settings in the setup menu.

UP: Scrolls through options or increases values in the setup menu.

DOWN: Scrolls through options or decreases values in the setup menu.

BACKLIGHT: Activates the screen backlight for period of 1-9 sec (as speci ed in

4.5). Note that the backlight charges o the input signal, and may appear dim-

mer if used repeatedly or immediately a er the instrument has been connected.

3.2 - Display area

1-6 Used to display your input in normal operating mode. Character 6 may be set up

to display units (any letter from A-Z - see 4.4 to con gure).

LB/T/KG Special units area for common weight units (see 4.4 to enable).

SETUP & CALIBRATION

4.1 - Main Menu

MENU (SEL) 4.1

D.POINT (Decimal Point)

ROUND (Rounding)

UNITS

4.2

4.3

4.4

CAL. (Calibration)

B.LIGHT (Backlight)

CNTRST (Contrast)

4.5

4.6

4.7

A From the operational display, press the SEL/MENU button.

B D.POINT will appear on the display. Scroll through the menu items using the

and

back to the operational display.

buttons. Press

to enter the selected menu, or the

button to go

4.2 - D.POINT (Decimal Point)

A Enter the D.POINT menu by following the instructions in 4.1.

B Your current decimal point position will appear on the display - either: X.XXXX,

X.XXX, X.XX, X.X or X. Use the

le or right, and then press

Note that adjusting your decimal point position will not scale your calibration. 4 decimal places (X.XXXX) are only available when CUSTOM UNITS (see 4.4B) are not used.

and buttons to shi the decimal point

to save and return to the operational display.

4.3 - ROUND (Rounding)

A Enter the ROUND menu by following the instructions in 4.1.

B The currently selected display rounding will appear. Use the

and buttons

to select: OFF, XXXX0, or XXX00, and then press

to save and return to the

operational display.

Rounding is quoted in display counts and is not in uenced by decimal point position.

4.4 - UNITS

A Enter the UNITS menu by following the instructions in 4.1.

B The currently selected display units will appear. Use the

select: OFF, K.G., LB., TON., or CUSTOM, and then press

 If you selected CUSTOM, continue to 4.4C now.

 If you selected something else, there is nothing further to con gure. A er

pressing

OFF: No units will be displayed. K.G./LB./TON.: Units will be displayed in the units area at the right edge of the screen, a er the six display digits. CUSTOM: Units will be displayed in the sixth display digit - your usable display counts will be reduced to  ve.

the display will return to normal operating mode.

and buttons to

to save.

C Your currently selected custom unit will appear in the sixth position on the

display. Use the

to save and return to the operational display.

and buttons to select a letter from A-Z, and then press

4.5 - CAL. (Calibration)

A Enter the CAL. menu by following the instructions in 4.1.

B The currently selected calibration method will appear on the display. Use the

and buttons to select a calibration method: KEY IN, 2POINT, or RESET,

and then press

 If you selected KEY IN, continue to 4.5C now.

 If you selected 2POINT, skip to 4.5E now.

 If you selected RESET, there is nothing further to con gure. The LPI610

to continue.

will restore the factory calibration and return to normal operating mode.

KEY IN scales the display using high and low display values, and relies on the factory set calibration. 2POINT calibrates the unit using live input signals. A calibrator or other external signal source is required for this procedure. RESET will restore the factory settings.

Press and hold the or button to adjust the display in 10s, 100s, 1000s etc.

Press the

Pressing the

and buttons at the same time to restore the default value.

button at any stage before calibration has completed will exit the

calibration menu without saving any of your calibration values.

Key in calibration

C 4 MA will appear on the display and toggle with the default display value for

4mA input (default 0). Use the

value as desired, and then press

and buttons to adjust the 4mA display

to continue.

D 20 MA will appear on the display and toggle with the default display value for

20mA input (default 10,000). Use the

display value as desired. Then press

and buttons to adjust the 20mA

to save the key in calibration values and

return to the operational display.

2 point calibration

E POINT1 will appear on the display and toggle with the default display value

for the  rst calibration point (default 0). Apply the Point 1 input signal to the

instrument. Use the

and then press

and buttons to adjust the display value as required,

to continue.

F POINT2 will appear on the display and toggle with the default display value

for the second calibration point (default 10,000). Apply the Point 2 input signal

to the instrument. Use the

required, and then press

and buttons to adjust the display value as

to calibrate the instrument.

 If calibration was successful, the display will return to operating mode.

 If ERROR appears on the display, then the calibration has not been saved.

The most common cause of a calibration error is an insu cient change

in input signal between the 2 points. Press

to exit to the operational

display, or the

button to go back to the calibration menu.

See Appendix A for more information on this error.

4.6 - B.LIGHT (Backlight)

A Enter the B.LIGHT menu by following the instructions in 4.1.

B The currently selected backlight time will appear. This is the amount of time

that the backlight will remain on for a er the

and

return to the operational display.

Note that the backlight charges o the input signal and is not intended to be used for extended periods of time. It may appear dimmer if used repeatedly, or if used immediately a er the instrument has been connected.

buttons to adjust the time from 1-9 SEC, and then press

button is pressed. Use the

to save and

4.7 - CNTRST (Contrast)

A Enter the CNTRST menu by following the instructions in 4.1.

B The currently selected screen contrast will appear on the display. Use the

and

press

buttons to adjust the contrast between CNT. 1 and CNT. 6, and then

to save and return to the operational display.

ERROR - This error appears during 2POINT calibration (see 4.5E-F), and occurs when

there is insu cient change in input signal between the 2 points, or when the

range speci ed by the controller exceeds the instrument's internal limitations.

To correct this error, please check your input signal and connections, and try

calibrating again. Your display range may have a maximum gain of 100 (i.e. a

2mA change on the input must not exceed 200,000 change in display counts).

ER.FLSH - A  ash error normally occurs when there is an unexpected loss of power

to the instrument during setup. If this error occurs, all settings will be restored

to their factory defaults. To clear the error message, press the

previous setup cannot be recovered - please con gure the instrument again.

ER. ADC - If this error occurs, then there is a problem with the instrument's onboard

APPENDIX A - ERRORS

button. Your

A/D converter. Pressing the

message temporarily, however the display may stop responding to changes in

input signal. If you get this error, try powering the unit o and then on again. If

the fault persists, contact De ne Instruments for support.

ER.FCAL - If a factory calibration error occurs, then the instrument's factory calibra-

tion has been lost. Pressing the

message temporarily. Please contact De ne Instruments for support.

button on the front panel will clear the error

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De ne Instruments

New Zealand (Head O ce)

10B Vega Place, Rosedale,

Auckland 0632, New Zealand

PO Box 245 Westpark Village,

Auckland 0661, New Zealand

Ph: +64 (9) 835-1550 | Aus: 1800 810-820 Fax: +64 (9) 835-1250

sales@de neinstruments.co.nz

www.de neinstruments.co.nz

Document Revision Code: LPI610 -MAN-15V04 Date Code: 151009LPI610 V0108

United States (Dallas, TX)

Ph: 214.926.4950

sales@de neinstruments.com

www.de neinstruments.com

South Africa (Johannesburg)

Ph: 087 945 2700

sales@de neinstruments.co.za

www.de neinstruments.co.za

Define Instruments LPI610 Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual