Omega DPG1000DAR-30V100 Instruction Sheet Download

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when the pressure falls below Setpoint 2. Alarm 2 will be RESET

when the pressure rises above Setpoint 2 plus the preset deadband.

To select SP2_L, press and release the

button. The lower display

will indicate SP2_L.
If SP2_H is selected Alarm 2 will be a high alarm. Alarm 2 will be

SET when the pressure rises above Setpoint 2. Alarm 2 will be

RESET when the pressure falls below Setpoint 2 minus the preset

deadband. To select SP2_H, press and release the

button. The

lower display will indicate SP2_H.
Press and release the SEL button to move to the next parameter.

Relay Action Selection (Fixed Deadband Configuration)

The lower display will display either _NOR_ or _REV_.
If _NOR_ is selected, the output relay coils will be energized in the

RESET state and de-energized in the SET state (normal action). To

select _NOR_, press and release the

button. The lower display

will indicate _NOR_.
If _REV_ is selected, the output relay coils will be de-energized in

the RESET state and energized in the SET state (reverse action). To

select _REV_, press and release the

button. The lower display

will indicate _REV_.
Press and release the SEL button to move on to the next parameter.

Relay Power Up State (Adjustable Hysteresis configuration)

The lower display will display either SP1_L or SP1_H.
If SP1_L is selected and the gauge is powered up while the applied

pressure is between the Output 1 SET and RESET trip points, Output

1 will begin in the RESET state. To select SP1_L, press and release

the

button. The lower display will indicate SP1_L.

If SP1_H is selected and the gauge is powered up while the applied

pressure is between the Output 1 SET and RESET trip points, Output

1 will begin in the SET state. To select SP1_H, press and release the

button. The lower display will indicate SP1_H.

Press and release the SEL button to move to Relay 2.
The upper display will be blank, and the lower display will display

either SP2_L or SP2_H.
If SP2_L is selected and the gauge is powered up while the applied

pressure is between the Output 2 SET and RESET trip points, Output

2 will begin in the RESET state. To select SP2_L, press and release

the

button. The lower display will indicate SP2_L.

If SP2_H is selected and the gauge is powered up while the applied

pressure is between the Output 2 SET and RESET trip points, Output

2 will begin in the SET state. To select SP2_H, press and release the

button. The lower display will indicate SP2_H.

Press and release the SEL button to move on to the next parameter.

Relay Action Selection (Adjustable Hysteresis Configuration)

The upper display will be blank, and the lower display will display

either _NOR1 or _REV1.
If _NOR1 is selected, the Output 1 relay coil will be energized in the

RESET state and de-energized in the SET state (normal action). To

select _NOR1, press and release the

button. The lower display

will indicate _NOR1.
If _REV1 is selected, the Output 1 relay coil will be de-energized in

the RESET state and energized in the SET state (reverse action). To

select _REV1, press and release the

button. The lower display

will indicate _REV1.
Press and release the SEL button to move on to Relay 2.
The upper display will be blank, and the lower display will display

either _NOR2 or _REV2.
If _NOR2 is selected, the Output 2 relay coil will be energized in the

RESET state and de-energized in the SET state (normal action). To

select _NOR2, press and release the

button. The lower display

will indicate _NOR2.
If _REV2 is selected, the Output 2 relay coil will be de-energized in

the RESET state and energized in the SET state (reverse action). To

select _REV2, press and release the

button. The lower display

will indicate _REV2.
Press and release the SEL button to move on to the next parameter.

Analog Output Range Lower Limit Adjust (DAR only)

The upper display will indicate the pressure value corresponding

to the 4 mA retransmission output. The lower display will display

RNGLO.
Use the

and

buttons to adjust the display to the desired value.

Press and release the SEL button to move on to the next parameter.

Analog Output Range Upper Limit Adjust (DAR only)

The upper display will indicate the pressure value corresponding

to the 20 mA retransmission output. The lower display will display

RNGHI.
Use the

and

buttons to adjust the display to the desired value.

Press and release the SEL button to move to the next parameter.

Output Test and Set Point Adjust Modes Pass Code Protection

The upper display section will be blank, and the lower section will

display either TSTPC or NOTPC.
To enable Output Test and Set Point Adjust Modes pass code

protection, press and release the

button. The lower display will

indicate TSTPC.
To disable Output Test and Set Point Adjust Modes pass code

protection, press and release the

button. The lower display will

indicate NOTPC.
Press and release the SEL button to save the configuration param-

eters and restart the unit. Note: The configuration parameters will
not be saved if the procedure is interrupted before completion.

The gauge is calibrated at the factory using equipment traceable to

NIST. There is no need to calibrate the gauge before putting it in

service. Calibration should only be performed by qualified individu-

als using appropriate calibration standards and procedures.
The calibration equipment should be at least four times more

accurate than the gauge being calibrated. The calibration system

must be able to generate and measure pressure/vacuum over the

full range of the gauge. A vacuum pump able to produce a vacuum

of 100 microns (0.1 torr or 100 millitorr) or lower is required for

vacuum and absolute gauges.
For DAR models use an accurate volt or mA meter for calibration of

the retransmission output.
Allow the gauge to equalize to normal room temperature (about 20

minutes minimum) before calibration.

To enter the calibration mode from the normal operating mode with

applied pressure being displayed, press and hold the TEST and the

buttons. Then press the SEL button. Release all buttons when

the display indicates CAL.
When the gauge enters the calibration mode, the display initially

indicates _ _ _ _ with the first underscore blinking, and with

CALPC on the lower display.
Enter the pass code as described in the Pass Code Entry section.
Upon successful calibration pass code entry, the upper display will

indicate the applied pressure in the configured engineering units.
The lower display of the display will alternate between CAL and

the calibration region corresponding to the applied pressure (ZERO,

+MID, +SPAN, MID, or SPAN).
Note: To store the calibration parameters and exit calibration

mode at any time, press and hold the SEL button until the display

indicates – – – – .

Calibration of the Retransmission Output (DAR only)

Calibration of the retransmission output coordinates the retransmis-

sion output to the display indication, and is performed independent-

ly of applied pressure. It requires a direct physical measurement of

the retransmission output.

Retransmission Output Low Value (DAR only)

Press and release the SEL button to step to the retransmission output

low value calibration sequence, indicated by LCAL on the display.
Note: If the SEL button is held depressed for longer than 2 seconds,

the display will change to indicate – – – –, and the gauge will exit

the calibration mode when all buttons are released.
The upper display will indicate the pre-configured pressure corre-

sponding to the retransmission output low value. The lower display

will alternate between CAL and 4 mA.
Use the

and

buttons to adjust the actual retransmission output

to its low value.

Retransmission Output High Value (DAR only)

Press and release the SEL button to step to the retransmission output

high value calibration sequence, indicated by HCAL on the display.
Note: If the SEL button is held depressed for longer than 2 seconds,

the display will change to indicate – – – –, and the gauge will exit

the calibration mode when all buttons are released.
The upper display will indicate the pre-configured pressure corre-

sponding to the retransmission output high value. The lower display

will alternate between CAL and 20 mA.
Use the

and

buttons to adjust the actual loop current to its

high value.

Pressure Calibration

The pressure calibration procedure adjusts the display indication,

and for DAR models also the retransmission output, to correspond

to the actual applied pressure.
If the applied pressure is not being displayed, press and release the

SEL button to step to the pressure calibration sequence, indicated

by CAL on the display.

Note: If the SEL button is held depressed for longer than 2 seconds,

the display will change to indicate – – – – , and the gauge will exit

the calibration mode when all buttons are released.

Zero calibration:

Apply zero pressure. The lower display will alter-

nate between CAL and ZERO. Use the

and

buttons to adjust

the upper display to indicate zero.

Span calibration:

Apply full-scale pressure. The lower display will

alternate between CAL and +SPAN. Use the

and

buttons to

adjust the upper display to indicate the applied pressure value.

Midpoint Non-Linearity calibration:

Apply 50% full-scale positive

pressure. The lower display will alternate between CAL and +MID.

Use the

and

buttons to adjust the upper display to indicate

the applied pressure value.

Negative Span calibration (bipolar and compound ranges only):

Apply full-scale negative pressure. The lower display will alternate

between CAL and SPAN. Use the

and

buttons to adjust the

upper display to indicate the applied pressure value.

Negative Midpoint Non-Linearity calibration (bipolar ranges only):

Apply 50% full-scale negative pressure. The lower display will alter-

nate between CAL and MID. Use the

and

buttons to adjust the

upper display to indicate the applied pressure value.
To store the calibration parameters and exit calibration mode, press

and hold the SEL button until the display indicates – – – – .

Configuration Pass Code

From the normal operating mode, press and hold the TEST and the

buttons. Then press the SEL button. Release all buttons when

the display indicates CFG.

Calibration Pass Code

From the normal operating mode, press and hold the TEST and the

buttons. Then press the SEL button. Release all buttons when

the display indicates CAL.

Test and Set Point Adjust Pass Code (optional)

From the normal operating mode, press and hold the TEST button.

Then press the SEL button. Release all buttons when the display

indicates – – – – .
Before the unit enters the view or change pass code mode, the

display initially indicates _ _ _ _ with the first underscore blinking,

and with CFGPC, CALPC, or TSTPC on the lower display.
Note: during pass code entry, the LEDs will be off and the gauge will

not respond to changes in applied pressure. The output relays will

maintain their prior states and the retransmission output will main-

tain its prior value. The gauge will automatically revert to normal

operation if no buttons are operated for approximately 15 seconds.

Enter Factory Pass Code 1220

Use the

and

buttons to set the left-most digit to 1.

Press and release the SEL button to index to the next position. The

1 will remain, and the second position will be blinking.
Use the

and

buttons to select 2.

Press and release the SEL button to index to the next position. 1 2

will remain, and the third position will be blinking.
Use the

and

buttons to select 2.

Press and release the SEL button to index to the next position. 1 2

2 will remain, and the fourth position will be blinking.
Use the

and

buttons to select 0.

Press and release the SEL button to proceed. Note: If an incorrect

pass code was entered, the gauge will exit to the normal operat-

ing mode.
Once the correct password has been entered, the display will

indicate the existing pass code with CFGPC, CALPC, or TSTPC on

the character segments.
Note: while in the pass code change mode, the LEDs will extinguish

and the unit will not respond to changes in applied pressure and the

output relays will be de-energized.
Operate the

button to select the first character of the

calibration password.
When the correct first character is being displayed, press and

release the SEL button to proceed to the next password character.
Repeat 1 & 2 above until the entire password is complete.
To exit the User-Defined Pass Code change mode, press and hold

the SEL button. Release the button when the display indicates

– – – – and restarts in the normal operating mode.

Calibration—cont.

User Configuration—cont.

Calibration

User Configuration—cont.

Calibration Preparation

Changing the User-Defined Pass Codes

DPG1000DAR Series Digital Pressure Gauges Alarms and 4-20 mA Output