Dwyer Instruments DigiMag DM-1112 Manual de usuario

Bulletin P-DM-1100

DWYER I STRUME TS, I C.

Phone: 219/879-8000 www.dwyer-inst.com

P.O. BOX 373 • MICHIGA CITY, I DIA A 46360, U.S.A. Fax: 219/872-9057 e-mail: [email protected]

Specifications - Installation and Operating Instructions

Series DM-1000 DigiMag®Digital Differential Pressure Gage

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

field-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®Digital Differential Pressure Gages have an added feature for filter

applications where a set point can be input where the display will blink when the

filter 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

simplified menus which provide access to: Security level; engineering units; filter

set point; view peak and valley process readings; digital damping for smoothing

erratic process applications; display update to conserve battery life; zero and span

field calibration.

The Series DM-1000 DigiMag®Digital Differential Pressure Gage possesses a full

scale accuracy of 1% on ranges down to 2˝ w.c. and 2% accuracy down to the very

low ranges of 1” to 0.25" w.c. Models are also available with bi-directional ranges.

DigiMag®Digital Differential Pressure Gages offer power versatility by working with

9-24 VDC line power or simply 9V battery power. f using line power and

connecting the 9V battery, the battery will act as a back-up if line power is lost or

interrupted.

SPECIFICATIO S

Service: Air and non-combustible, compatible gases.

Wetted Materials: Consult factory.

Housing Materials: Glass filled plastic.

Accuracy: ±1% F.S. including linearity, hysteresis and repeatability; ±2% F.S. for

ranges 1˝ 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˝ 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˝ w.c. and lower = 2 psi

(13.7 kPa); Normal and bi-directional ranges 10˝ 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®PC 1604 or equivalent).

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 ULTRAL FE 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: 3/16˝ .D. tubing (5 mm .D.), maximum O.D. 3/8˝ tubing.

Enclosure Rating: NEMA 4X ( P66).

Weight: 1.18 lb (535 g).

Size: 5˝ (127 mm) O.D. front face.

Agency Approvals: CE, EN 61326-1 [ mmunity Test Requirement for ndustrial

Environments] with the following SPEC:

EC 61000-3-2

EC 61000-3-3

EC61000-4-2

EC61000-4-3

EC61000-4-4

EC61000-4-5

EC61000-4-6

EC61000-4-11

Duracell®is a registered trademark of The Gillette Company.

4-31/64

[113.89]

3X1/8

[3.30]

1-59/64

[48.89]

17/64

[6.91]

Ø5

[127.00]

PRESSURE

CONNECTIONS

21/64 [8.59] LONG

3-5/64

[78.27]

[25.44]

3-15/32

[88.12]

Ø13/64

[5.18]

Ø25/64

[10.03]

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ISTALLATIO

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. nsert gage

and secure in place with provided screws and adapters.

ncluded 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

Pressure Connections

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

sized to fit 3/16˝ (4.8 mm) .D. x 5/16˝ (7.9 mm) O.D. flexible 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.

Electrical Connections

A 9V battery or an external power supply 9-24 VDC can be used to power the unit.

f 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.

OPERATI G I STRUCTIO S

Key Functions

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

Sequences through

menus

Enter into SUB

Sub Menu

Function

Return to previous

ncrements 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.

Ø5/8 [15.88]

THRU HOLE FOR

ONDUIT CONNECTION

OUTSIDE DIAMETER

OF A-286 FLANGE

1-1/4 [31.75] (3) FLANGE MOUNTING

HOLE LOCATIONS

FIGURE 1

Up Arrow

Down Arrow

Enter

POWER MUST BE OFF WHILE WIRI G CO ECTIO S

ARE BEI G MADE. DO OT EXCEED SPECIFIED SUPPLY

VOLTAGE RATI GS. PERMA E T DAMAGE OT COVERED BY WARRA TY

WILL RESULT.

CAUTIO

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Menu Map

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MAI ME U PROGRAMMI G I STRUCTIO S

(Upper Right Display Reads ME U)

Security Menu: SECr-ME U

Lock out access to all menus or lock out access to all menus except Auto-Zero

function (Auto-ZERO).

Operation Menu: OPEr-ME U

Select the measurement type – pressure, velocity or flow and corresponding

engineering units (Velocity and flow are not available for Model DM-1100).

Display Menu: diS-ME U

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

display update, peak and valley.

Advanced Menu: AdU-ME U

Perform auto-zero or full-scale calibration.

SECURITY ME U: SECR-ME U

With the gage reading pressure (home position), press and hold the ME U key

until the Security MENU is displayed. Press the Ekey 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.

The password values shown in the table cannot be altered, so retain a copy of

these pages for future reference.

OPERATIO ME U: OPER-ME U

With the gage reading a numerical value (home position), press and hold the

ME U key until the Security MENU is displayed. Press the qkey to show the

OPEr-ME U. Press the Ekey to show the Operation SUB MENUS.

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

PRESSURE SUB ME U: PRES – I WC

PrES – I WC: Pressure – inches of water column

With the LCD reading PrES – I WC, press the Ekey; the display will blink. Press

the qkey to change the pressure unit then press the Ekey to save the desired

unit.

For pressure measurement, the following units are available:

I WC – nches of water column MBAR – Millibar

PSI – Pounds per square inch I HG – nches of mercury

KPA – Kilopascals MMHG – Millimeters of mercury

PA – Pascals FS – % of full scale

MMWC – Millimeters of water column

Security Level

Displayed

Access

All menus access

All menus locked except

the auto-zero function

All menus locked

Password Value

to Enter

111

TABLE 1 PRESSURE RA GE VS. AVAILABLE U ITS

OTE: OFL (over flow) or UFL (under flow) will appear when the low and high

range levels have been exceeded by 10% F.S.

in w.c.

0.250

0.500

1.000

2.000

5.000

10.00

15.00

25.00

50.00

100.0

psi

–

0.181

0.361

0.543

0.903

1.806

3.613

kPa

0.062

0.124

0.249

0.498

1.245

2.491

3.738

6.227

12.45

24.91

62.20

124.5

249.1

498.2

1245

2491

3738

6227

–

mbar

0.622

1.245

2.492

4.982

12.45

24.91

37.38

62.27

124.5

249.1

mm w.c.

6.35

12.70

25.40

50.80

127.0

254.0

381.0

635.0

1270

2540

in Hg

–

0.368

0.736

1.104

1.839

3.678

7.355

mm Hg

0.467

0.934

1.868

3.736

9.34

18.68

28.02

46.71

93.42

186.8

% of

100.0

Resolution

(in w.c.)

0.001

0.002

0.010

0.020

0.100

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DISPLAY ME U: diS – ME U

With the gage reading a numerical value (home position), press and hold the

ME U key until the Security MENU is displayed. Press the qkey until the LCD

shows diS – ME U. Press the Ekey to show the Display SUB MENUS.

FILTER TYPE SETTI G

With the LCD reading FILt – OFF, press the Ekey; the display will blink. Press the

qkey to change the filter type then press the Ekey to save the desired filter type.

FILt – OFF: Filter type = OFF. The filter function is disabled.

FILt – HIGH: Filter type = H GH. The display blinks when pressure is greater than

the filter point.

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

filter point.

FILTER POI T SETTI G

With the LCD reading 0.00 – SPPT, press the Ekey; the display will blink. Press

the qkey to change the filter point then press the Ekey to save the desired filter

point.

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

range of the instrument.

DAMPI G SETTI G

With the LCD reading 1 – DAMP, press the Ekey; the display will blink. Press the

qkey to change the damping level then press the Ekey 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 fluctuations. The damping function adjusts the amount of

readings that are averaged for each display update.

DISPLAY UPDATE SETTI G

With the LCD reading rAtE – ORM, press the Ekey; the display will blink. Press

the qkey to change the display update rate then press the Ekey to save the

desired display update rate.

rAtE – ORM: 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 p key

is pressed. f the pkey is released, the LCD will hold and display the last pressure

reading.

OTES:

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. f 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 pkey

on the front panel. Also the LCD will automatically show “ALAr” if the filter point has

been exceeded.

PEAK A D VALLEY SETTI G

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 Ekey 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 VALY value, press the Ekey while in the VALY SUB

MENU.

ADVA CED ME U: AdU – ME U

With the gage reading pressure (home position), press and hold the ME U key

until the Security MENU is displayed. Press the qkey until the display shows the

AdU – ME U. Press the Ekey to show the advanced function SUB MENUS.

Auto ZERO: auto-zero

OTE: For accurate calibration, DO OT 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 Ekey again to complete the auto-zero.

CAL – SPA : full-scale calibration

With the display reading CAL – FS, apply full-scale pressure then press the Ekey;

the display will blink. Press the Ekey again to save the full-scale calibration or

press the ME U key to cancel the calibration.

MAI TE A CE

This model is not field-serviceable and should be returned if repair is needed (field

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.

www. .com information@itm.com1.800.561.8187

DWYER I STRUME TS, I C.

Phone: 219/879-8000 www.dwyer-inst.com

P.O. BOX 373 • MICHIGA CITY, I DIA A 46360, U.S.A. Fax: 219/872-9057 e-mail: [email protected]

3-5/64

[78.27]

STANDARD MOUNTING HOLE

DIMENSION FOR DIGIMAG GAUGE

Ø4-9/16 [115.89]

[25.44]

2X30°

2xØ13/32 [10.32]

THRU HOLES FOR

PRESSURE PORTS

1-51/64 [45.72]

3-15/32 [88.12]

(3) SURFACE MOUNTING

HOLE LOCATIONS

13/32 [10.16]

Ø5/8 [15.88]

THRU HOLE FOR

CONDUIT CONNECTION

OUTSIDE DIAMETER

OF A-286 FLANGE

1-1/4 [31.75] (3) FLANGE MOUNTING

HOLE LOCATIONS

Ø5-17/32 [140.49]

BOLT CIRCLE

MOUNTING HOLE DIMENSION

FOR A-286 FLANGE

Ø5-1/8 [130.18]

www. .com information@itm.com1.800.561.8187

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