Dwyer DCGII User Manual

Series DCGII Digital Calibration Pressure Gage

PEAK

UNITS ZERO

(0 to XX PSIG)

Ø4-3/8

[111.51]

Ø3-5/8

[92.20]

2-5/8

[66.97]

1

/2 NPT

D

CGII-105

DIGITAL PRESSURE GAGE

POWER: DC9V (6LR61 ALKALINE BATTERY)

D

WYER INSTRUMENTS, INC.

Specifications - Installation and Operating Instructions

Bulletin P-DCGII

The Series DCGII Digital Calibration Pressure Gage offers a complete

pressure gage with calibration capabilities. With a precise 0.05% full scale
accuracy and large 5 digit resolution, this gage can be used in critical
industrial applications where precision is most important.

This versatile
gage only requires one 9V battery or power adapter and can operate up
to 5,000 working hours. The Series DCGII 0.05% Digital Pressure Gage
can display percent pressure for a quick visual reference.

This pressure
gage comes complete with eleven selectable pressure units, backlight and
zeroing capability.

CAUTION

switch. However, in order to avoid the reading overflow or too low to read; only some
of pressure units are selected. To prevent damage, do not use the imposition of torque
between the sh ell and the pressure quick c onnect coupling. Do no t connect the
communication label with DCGII in a hazardous atmosphere.

To prevent sensor damage, do not allow the pressure to exceed
120% of full scale. The DCGII has 11 different pressure units to

Operating Instructions

Power ON/OFF

Analog dial:
Pressing it shortly to select the % indication, swing (fluctuation)
and low/high alarm; Pressing it longer to enter into the menu of
adjusting low/high alarm.

Peak Value:
Pressing it shortly to switch the indication among max Peak, min

Peak and quit Peak; Pressing it longer to enter the menu of MENU

OPTION.

SPECIFICATIONS
Service: Compatible, non-combustible liquids and gases.
Wetted Materials: 316 SS.
Other Materials: Housing: Aluminum alloy; Display: Acrylic MR200;

Buttons: Silicon gel; Back plate: 304 SS; Back seal: Oil-proof latex.

Accuracy: 0.05% FS; ±1 least significant digit.
Temperature Accuracy: ±1°C.
Pressure Limits: 120% of FS.
Temperature Limits: 14 to 122°F (-10 to 50°C).
Compensated Limits: 32 to 122°F (0 to 50°C).
Process Connection: 1/2˝ male NPT.
Display: 5-digit LCD with blue backlight.
Power Requirements: One 9V alkaline battery or power adapter.
Battery Life: Up to 10,000 hours (600 working hours @ default 3

times/s).

Auto Shut-off: Backlight: On/off, 10 s, 20 s, 30 s.
Weight: 1.28 lb (0.58 kg).
Agency Approval: CE.

Backlight:
Pressing it shortly to turn on of turn off the backlight; Pressing it
longer to select the backlight display time (10 s, 20 s and 30 s),
and loosen it for selection.

Pressure units: Pressing it shortly to switch the different pressure
units; Pressing it longer to enter into the temperature display
menu.

Zeroing:
Pressing it for zeroing function (The absolute type DCGII should

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: [phone] e-mail: [e-mail]

be press longer).

Phone: [phone] www.dwyer-inst.com

Data Inputting Introduction

①(←), (→) Move decimal digit left and right;

②(↑), (↓) Increase/ decrease the pressure value;

③(↙) Confirm the inputting data;

④(ESC) Cancel the inputting data.

Menu Operation Introduction

①(Menu) Pressing it longer to enter the MENU OPTION

(calibration/setting);

②(↑), (↓) Move menu upper or down;

③(↙) Enter function;

④(ESC) Show the previous menu.

Screen Area

Basic Function

Power on/off

Press to turn on or turn off the DCGII. The instrument does a self test
and then shows all applicable data.

Figure 2: The First Screen

Figure 1: Screen Area

Battery Icon: The battery icon ( ) is the indication of full battery; The

battery icon ( ) is the indication of low battery (<25%). However, the
DCGII can continually work till it powers off automatically.

Pressure Unit Area: Total 11 units for selection;
In order to avoid the readings overflow or too low to read, only some of pressure
units are selected.

Calibration Icon: The mark or symbol of operating calibration.
Pressure Peak: The mark or symbol of displaying peak value.
Higher Limit: The mark or symbol of high limit pressure
Lower Limit: The mark or symbol of lower limit pressure
Temperature Unit: C, Celcius.
Data Display Area: To display all data or menu.
Analog Dial: Includes 3 types indication: pressure % indication, pressure

swing, overpressure alarm.

The content of the area as below:

① % Indication: The current pressure percentage;

② Pressure Swing: The indication of the pressure fluctuation;

③ Overpressure Alarm:The alarm indication for overpressure (less or more

the limit);

④ Sector Pointer Area: Including 51 segments bars or pointers;

⑤ Scale Bar Graph: It has different definitions under the different operation

condition;

⑥ Scale Midpoint: The middle position of Scale bar graph.

Figure 3: Pressure Measurement Interface

Pressure Measure

Press the buttons to enter the pressure measure menu, the displayed content
includes:

• Battery icon

• Pressure measure value

• Pressure units

• Analogue dial indication

Note: Initially, these register values are set to the factory calibration values.
If the pressure is over 120% × FS, the whole screen will flash to alarm. To
prevent damage of sensor, please release the pressure immediately. While
the alarm happened, the measure speed of DCGII automatically changes to
3 x 1 s for catching up the pressure changing. When the alarm is over, the
speed will go back to normal.

Zeroing

Connect the DCGII with atmosphere via connector coupling. If the current
pressure is in the range of (-1% ~ +1%) × FS, press button for zeroing
step. Figure 4 shows the zeroing sequence of gage pressure.

Figure 4: The Zeroing Sequence for Gage Pressure DCGII