Dwyer DM-1000 User guide

Bulletin P-DM-1100

Ø5.00

2.33

®

Series DM-1000 DigiMag® Digital Differential Pressure Gage

Specications - Installation and Operating Instructions

The Series DM-1000 DigiMag® Digital Differential Pressure Gage is the ideal digital instrument to take the place of analog mechanical pressure gages. The DigiMag

Digital Gages are more versatile than analog gages with their ability to be eld-

programmed to display many commonly used engineering units as well as percent of

full scale. The Series DM-1000 can be programmed in 8 commonly used engineering

units plus percent of full scale. This capability allows quick units selection on site, eliminating the need to calculate various unit conversions. The DigiMag

Differential Pressure Gages have an added feature for lter applications where a set point can be input where the display will blink when the lter is dirty, alerting the user

that a maintenance action needs to occur.

Programming the Series DM-1000 is easy using the menu key to access 4 simplied menus which provide access to: Security level; engineering units; lter set point; view

peak and valley process readings; digital damping for smoothing erratic process

applications; display update to conserve battery life; zero and span eld calibration.

®

The Series DM-1000 DigiMag scale accuracy of 1% on ranges down to 2 in w.c. and 2% accuracy down to the very low ranges of 1 in to 0.25 in w.c. Models are also available with bi-directional ranges.

®

Digital Differential Pressure Gages offer power versatility by working with 9

DigiMag

to 24 VDC line power or simply 9 V battery power. If using line power and connecting the 9V battery, the battery will act as a back-up if line power is lost or interrupted.

Digital Differential Pressure Gage possesses a full

®

Digital

SPECIFICATIONS

®

Service: Air and non-combustible, compatible gases.

Wetted Materials: Consult factory. Housing Materials: Glass lled plastic. Accuracy: ±1% F.S. including linearity, hysteresis and repeatability; ±2% F.S. for

ranges 1 in w.c. and below.

Temperature Limits: 0 to 140°F (-18 to 60°C). Compensated Temperature Limits: 32 to 122°F (0 to 50°C). Long Term Stability: ±1% F.S. per year. Thermal Effect: ±0.05% F.S./°F typ.; ±0.10% F.S./°F for ranges 1 in w.c. and below. Display: 4-digit LCD (Digits: 0.60˝H x 0.33˝W). Display Update: Selectable for 1 second to 10 minutes or update only from button

push.

Pressure Limits: Normal and bi-directional ranges 5 in w.c. and lower = 2 psi (13.7 kPa); Normal and bi-directional ranges 10 in w.c. and higher = 11 psi (75 kPa). Selectable Engineering Units: in w.c., psi, kPa, Pa, mm w.c., mBar, in Hg, mm Hg, FS (0-100%). Power Requirements: 9V battery or external power supply 9-24 VDC. Battery

included but not connected.

Type of Battery: 9V alkaline battery (Duracell Battery Service Life: Battery life depending on the Display Update setting: 150

hours (typical) if Display Update = 1 second; 9 month (typical) if Display Update = 10 minutes; 1.5 years (typical) if Display Update is disabled. Battery may last up to four times longer when using lithium-based battery ULTRALIFE U9VL-J.

Current Consumption: 5 mA maximum. Electrical Connections: Removable terminal block for 16 to 26 AWG. Electrical Entry: Cable gland for 0.114 to 0.250˝ (2.9 to 6.4 mm) diameter cable. Process Connections: 1/8˝ (3 mm) ID tubing. Enclosure Rating: NEMA 4X (IP66). Weight: 1.18 lb (535 g).

Size: 5˝ (127 mm) O.D. front face.

Agency Approvals: CE, EN 61326-1 [Immunity Test Requirement for Industrial Environments] with the following SPEC: IEC 61000-3-2, IEC 61000-3-3, IEC610004-2, IEC61000-4-3, IEC61000-4-4, IEC61000-4-5, IEC61000-4-6, and IEC610004-11.

®

PC 1604 or equivalent).

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: 219/879-8000

Fax: 219/872-9057

Duracell® is a registered trademark of The Gillette Company

www.dwyer-inst.com

e-mail: info@dwyermail.com

INSTALLATION

3-5/64 [78.27]

3-15/32 [88.12]

THRU HOLE FOR

(3) FLANGE MOUNTING

9 TO 24 VDC

B1

Mounting

A vertical position required. That is the position in which all standard models are

calibrated at the factory. Provide a 4-9/16˝ diameter opening in panel. Insert gage and

secure in place with provided screws and adapters.

Included Accessories:

Mounting lugs – 3

6-20 x 2-1/2 screws – 3 4-20 x 3/8 screws – 3 (mounting hole depth is 3/8˝ [9.53]) Cable gland – 1

CONN6

9V BATTERY

HOLE LOCATIONS

OUTSIDE

DIAMETER

OF A-286

FLANGE

Ø5/8 [15.88]

CONDUIT

CONNECTION

13/32 [10.16]

(3) SURFACE

MOUNTING HOLE

LOCATIONS

Pressure Connections

Two integral tubing connections are provided on the back of the gage. They are sized

to t 3/16˝ (4.8 mm) I.D. x 5/16˝ (7.9 mm) O.D. exible PVC tubing. To measure single

positive pressure, connect tubing to the + port and vent the – port to atmosphere. To

measure single negative pressure (vacuum), connect tubing to the – port and vent the

+ port to atmosphere. To measure differential pressure, connect higher pressure to the + port and lower pressure to the – port. Be sure the pressure rating of the tubing

exceeds that of the operating ranges.

1-1/4

[31.75]

1-51/64

[45.72]

Ø5-17/32 [140.49] BOLT CIRCLE

2X30°

2xØ13/32 [10.32] THRU HOLES FOR PRESSURE PORTS

MOUNTING HOLE DIMENSION FOR A-286 FLANGE Ø5-1/8 [130.18]

STANDARD MOUNTING HOLE DIMENSION FOR DIGIMAG GAUGE Ø4-9/16 [115.89]

1 [25.44]

POWER SUPPLY

Figure 1

OPERATING INSTRUCTIONS - Key Functions

Menu

Up Arrow

Down Arrow

Enter

Home Position Function

Allows access to the menus

Displays pressure readings instantly

(rAtE KEY MODE only)

Displays full scale range of unit

Main Menu

Function

Return to

home position

Sequences through menus

Enter into SUB MENU

Sub Menu Function

Return to previous menu

Increments a value

Decrements a value

Changes a value or setting. Press ENTER and

display will blink. Adjust

with UP or DOWN arrows. Press ENTER to store.

Display will stop blinking.

Electrical Connections

A 9V battery or an external power supply 9-24 VDC can be used to power the unit. If both battery and external power supply are connected, the battery will work as back

up power.

Battery Installation

The unit is shipped with a separate 9V alkaline battery. Remove the unit’s top back cover, do not remove bottom cover. Connect the 9V battery to the battery holder as shown in Figure 1. Replace top back cover and tighten screws to 2 ±.25 in. lbs.

External Power Supply Installation

Remove the unit’s back cover then connect the external power supply to the terminal block as shown in Figure 1.

VOLTAGE RATINGS. PERMANENT DAMAGE NOT COVERED BY WARRANTY WILL RESULT.

CAUTION

POWER MUST BE OFF WHILE WIRING CONNECTIONS ARE BEING MADE. DO NOT EXCEED SPECIFIED SUPPLY

Menu Map

Main Menu Programming Instructions (Upper Right Display Reads MENU)

Security Menu: SECr-MENU

Lock out access to all menus or lock out access to all menus except Auto-Zero function (Auto-ZERO).

Operation Menu: OPEr-MENU

Select the measurement type – pressure, velocity or ow and corresponding engineering units (Velocity and ow are not available for Model DM-1100).

Display Menu: diS-MENU

Monitor and adjust display related settings: Filter type, lter point, dampening, display

update, peak and valley.

Advanced Menu: AdU-MENU

Perform auto-zero or full-scale calibration.

Security Menu: SECr-MENU

With the gage reading pressure (home position), press and hold the MENU key until the Security MENU is displayed. Press the E key to show the security SUB MENU SECr–0001. When the security SUB MENU is selected, the present security level is

displayed in the upper right hand display. To change the security level, adjust the number displayed to the number shown in the following table for the desired security level.

TABLE 1 PRESSURE RANGE VS. AVAILABLE UNITS in w.c. psi kPa Pa mbar mm

0.250

–

0.062

62.20

0.500

– – –

0.181

0.361

0.543

0.903

1.806

3.613

0.124

0.249

0.498

1.245

2.491

3.738

6.227

12.45

24.91

1.000

2.000

5.000

10.00

15.00

25.00

50.00

100.0 Note: OFL (over ow) or UFL (under ow) will appear when the low and high range

levels have been exceeded by 10% F.S.

124.5

249.1

498.2 1245 2491 3738 6227

– –

0.622

1.245

2.492

4.982

12.45

24.91

37.38

62.27

124.5

249.1

in Hg mm Hg% of FSResolution

w.c.

6.35

–

0.467

12.70

25.40

50.80

127.0

254.0

381.0

635.0 1270 2540

– – –

0.368

0.736

1.104

1.839

3.678

7.355

0.934

1.868

3.736

9.34

18.68

28.02

46.71

93.42

186.8

100.0

(in w.c.)

0.001

0.002

0.010

0.020

0.100

Security Level Displayed

1

2

3

The password values shown in the table cannot be altered, so retain a copy of these pages for future reference.

Operation Menu: OPEr-MENU

With the gage reading a numerical value (home position), press and hold the MENU key until the Security MENU is displayed. Press the ▼ key to show the OPEr-MENU. Press the E key to show the Operation SUB MENUS.

The Operation SUB MENUS for Series DM-1100 is PrES–INWC (Pressure–Unit)

Pressure Sub Menu: PrES – INWC PrES – INWC: Pressure – inches of water column

With the LCD reading PrES – INWC, press the E key; the display will blink. Press the ▼ key to change the pressure unit then press the E key to save the desired unit.

For pressure measurement, the following units are available:

INWC – Inches of water column MBAR – Millibar PSI – Pounds per square inch INHG – Inches of mercury KPA – Kilopascals MMHG – Millimeters of mercury PA – Pascals FS – % of full scale

MMWC – Millimeters of water column

Access Password

All menus access

All menus locked except the auto-zero function

All menus locked

Value to Enter

10 90

111

DISPLAY MENU: diS – MENU

With the gage reading a numerical value (home position), press and hold the MENU key until the Security MENU is displayed. Press the ▼ key until the LCD shows diS

– MENU. Press the E key to show the Display SUB MENUS.

FILTER TYPE SETTING

With the LCD reading FILt – OFF, press the E key; the display will blink. Press the ▼ key to change the lter type then press the E key to save the desired lter type.

FILt – OFF: Filter type = OFF. The lter function is disabled. FILt – HIGH: Filter type = HIGH. The display blinks when pressure is greater than the

lter point. FILt – LOW: Filter type - LOW. The display blinks when pressure is less than the lter

point.

FILTER POINT SETTING

With the LCD reading 0.00 – SPPT, press the E key; the display will blink. Press the ▼ key to change the lter point then press the E key to save the desired lter point.

0.00 – SPPT: Filter point = 0.00. The lter point may be set to anywhere within the

range of the instrument.

DAMPING SETTING

With the LCD reading 1 – DAMP, press the E key; the display will blink. Press the ▼ key to change the damping level then press the E key to save the desired damping level.

1 – DAMP: Damping level = 1. The damping level can be adjusted from 1 to 15.

Damping stabilizes the display from instabilities due to things such as vibration and

excessive pressure uctuations. The damping function adjusts the amount of readings

that are averaged for each display update.

DISPLAY UPDATE SETTING

With the LCD reading rAtE – NORM, press the E key; the display will blink. Press the q key to change the display update rate then press the E key to save the desired

display update rate.

PEAK AND VALLEY SETTING

100.0 – PEAK: Peak value = 100.0

The peak feature stores the highest pressure reading the instrument has measured since the last reset or power up. At power up PEAK is reset to the present pressure reading. To manually reset the PEAK value, press the E key while in the

PEAK SUB MENU.

0.0 – VALY: Valley value = 0.0

The valley feature stores the lowest pressure reading the instrument has measured since the last reset or power up. At power up VALY is reset to the present pressure reading. To manually reset the VA LY value, press the E key while in the

VALY SUB MENU.

ADVANCED MENU: AdU – MENU

With the gage reading pressure (home position), press and hold the MENU key until the Security MENU is displayed. Press the ▼ key until the display shows the AdU

– MENU. Press the E key to show the advanced function SUB MENUS.

Auto ZERO: auto-zero

Note: For accurate calibration, DO NOT apply any pressure when performing this

function.

With the display reading Auto ZERO, release pressure to Zero then press the E key; the display will blink. Press the E key again to complete the auto-zero.

CAL – SPAN: full-scale calibration With the display reading CAL – FS, apply full-scale pressure then press the E key; the display will blink. Press the E key again to save the full-scale calibration or press the

MENU key to cancel the calibration.

MAINTENANCE

This model is not eld-serviceable and should be returned if repair is needed (eld repair should not be attempted and may void warranty). Be sure to include a brief description of the problem plus any relevant application notes. Contact customer

service to receive a return goods authorization number before shipping.

rAtE – NORM: Display update = Normal (1 second). The gage reads the process pressure and updates the LCD every second.

rAtE – 10: Display update = 10 minutes. The gage reads the process pressure and updates the LCD every 10 minutes.

rAtE – KEY (On-Touch mode): Display update is disabled.

The gage reads the process pressure and updates the LCD whenever the ▲ key is pressed. If the ▲ key is released, the LCD will hold and display the last pressure

reading.

NOTES:

1. Depending on the Display Update setting, the battery life is shown below:

-150 hours (typical) if Display Update is set for “Normal” 1 second update. rAtE-NORM

-9 months (typical) if Display Update is set for 10 minutes. rAtE-10

-1.5 years (typical) if Display Update is disabled. rAtE-KEY

2. If the Display Update is set for 10 minutes or disabled (On-Touch mode), the process pressure value can be read instantly by pressing and holding the ▲ key on the front panel. Also the LCD will automatically show “ALAr” if the lter point has been exceeded.

This symbol indicates waste electrical products should not be disposed

of with household waste. Please recycle where facilities exist. Check with your Local Authority or retailer for recycling advice.

3-5/64

[78.27]

1-1/4 [31.75]

(3) FLANGE MOUNTING

HOLE LOCATIONS

MOUNTING HOLE DIMENSION

FOR A-286 FLANGE

Ø5-1/8 [130.18]

Ø5-17/32 [140.49]

BOLT CIRCLE

STANDARD MOUNTING HOLE

DIMENSION FOR DIGIMAG GAUGE

Ø4-9/16 [115.89]

1

[25.44]

2X30°

2xØ13/32 [10.32]

THRU HOLES FOR

PRESSURE PORTS

OF A-286 FLANGE

OUTSIDE DIAMETER

Ø5/8 [15.88]

CONNECTION

THRU HOLE FOR

13/32 [10.16]

HOLE LOCATIONS

(3) SURFACE MOUNTING

3-15/32 [88.12]

1-51/64 [45.72]

NOTES

__________________________________________________________________________________________________________________________________________

NOTES

__________________________________________________________________________________________________________________________________________

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: 219/879-8000

Fax: 219/872-9057

www.dwyer-inst.com

e-mail: info@dwyermail.com

Dwyer DM-1000 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual