Dwyer Instruments ISDP-006, ISDP-009, ISDP-008, ISDP-016, ISDP-014 User manual

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Bulletin A-25

Series ISDP Intrinsically Safe Differential Pressure Transmitter

Specifications - Installation and Operating Instructions

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, IN 46360, U.S.A. Fax: 219/872-9057 e-mail: info@dwyermail.com

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

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25/32

[21.18]

1-15/16

[48.97]

1-5/16

[33]

1-17/32

[38.61]

45/64

[17.78]

-7/32

[132.54]

4-23/32

[120]

3-7/16

[87.12]

BRACKETS

ARE OPTIONAL

4X ø3/16 [4.76] CLEARANCE

HOLES FOR MOUNTING

3-17/64

[83]

MOUNTING HOLE

PATTERN

4-1/8 [105]

1-5/32

[29.59]

#8-36 SLOTTED MACHINE SCREW

#8 LOCK

WASHER

BRACKET ASSEMBLY

1-45/64

[43.18]

-31/32

[

75.39]

4-23/32

[120]

-9/64

[

105.17]

DIMENSIONS

Shown with Optional A-438 Mounting Bracket

OPTIONAL A-438 BRACKET

MOUNTING DIAGRAM

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SPECIFICATIONS Service: Air and non-corrosive gases. Wetted Materials: Ranges 5˝ and greater: glass, PVC, silicon, alumina ceramic, epoxy,

RTV, gold, aluminum, stainless steel and nickel; Ranges 1˝ and lower: stainless steel, silicone, gold and ceramic.

Housing Materials: Aluminum, glass. Accuracy: ±0.5% at 77°F (25°C) including hysteresis and repeatability (after 1 hour

warm-up).

Stability: < ±1% per year. Pressure Limits: Ranges ≤ 2.5 in. w.c. = 2 psi;

5˝: 5 psi; 10˝: 5 psi; 25˝: 5 psi; 50˝: 5 psi; 100˝: 9 psi.

Temperature Limits: 32 to 161.6°F (0 to 72°C). Compensated Temperature Limits: 32 to 140°F (0 to 60°C). Thermal Effects: 0.020%/°F (0.036/°C) from 77°F (25°C). Power Requirements: 10-35 VDC. Output Signal: 4-20 mA DC. Zero & Span Adjustments: Accessible via menus. Response Time: 250 ms (dampening set to 1). Display: 4 digit LCD 0.6˝ height. Electrical Connections: M12 4 PIN Connector. Process Connections: 1/8 female NPT. Enclosure Rating: Designed to meet NEMA 4x (IP66). Mounting Orientation: Mount unit in horizontal plane. Size: 4.73˝ x 4.73˝ x 3.43˝ (120 mm x 120 mm x 87.1 mm). Weight: 2 lb 10 oz (1.19 kg). Agency Approvals: FM Approved: IS / I, II, III / 1 / ABCDEFG / T4 Ta = 0°C to 72° - 19-

443480-50; ENTITY; TYPE 4X (US AND CANADA) I / 0 AEx ia / IIC / T4 Ta = 0°C to 72°

- 19-443480-50; ENTITY; TYPE 4X (US) I / 0 / Ex ia / IIC / T4 Ta = 0°C to 72° - 19443480-50; ENTITY; TYPE 4X (CANADA) CE. CENELEC EN 61326/55024: 2003; IEC 61000-4-2/3/4/6: 2001/2006/2004/2005; CENELEC EN 55011: 2006; 2004/108/EC EMC Directive.

Intrinsic Safety Information

Entity Parameters

Ui = 28VDC Ii = 93mA Ci = 22 nF Li = 400 uH Pi = 651mW

Notes:

1. Remove power from the instrument before carrying out any servicing.

2. Use only FM approved Associated Apparatus.

3. The earth terminal on the housing must be wired to a local earth ground in the hazardous area.

4. Refer to control drawing 19-443480-50, Page 15, for installation requirements.

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MAX IMUM VAL UE (1 250Ω)

OPERATING 

REGION

R L MAX=

Vps -10.0 

20mA DC

VDC

5101315

RECEIVER

RESI

ANCE

(Ω)

1500 1400 1300 1200 1100 1000

900 800 700 600 500 400 300 200 100

ISDP

TRANSMITTER

RECEIVER

POWER SUPPLY

10-35 VDC

M-12 Connector

A-231 M-12 Cable Colors

PIN 1 is Brown (positive)

PIN 3 is Blue (negative)

Use Model A-231 shielded cable with 4 pin Female M-12 connection.

2-WIRE CONNECTION

Fig. C

-------2-Wire Operation- An external power supply delivering 10 - 35 VDC with minimum

current capability of 40 mA DC (per transmitter) must be used to power the control loop. See Fig. C for connection of the power supply, transmitter, and receiver. The range of the appropriate receiver load resistance (RL) for the DC power supply voltage available is expressed by the formula and graph in Fig. D.

POWER SUPPLY VOLTAGE - VDC (2-WIRE CONNECTION)

Fig. D

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MENUMENU

INSTALLATION

Mount the instrument in a location that will not be subject to excessive temperature, shock or vibration.

Pressure Connections

Use 1/8˝ male NPT fittings. When tightening fittings, grasp the brass fitting on the ISDP with a 1/2˝ wrench to prevent the fitting on the ISDP from turning.

KEY FUNCTIONS

HOME POSITION FUNCTION

Allows access to the menus

MAIN MENU FUNCTION

Return to home position

SUB MENU FUNCTION

Return to previous menu

ARROW

DOWN

ARROW

ENTER

Displays full scale range of unit

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Sequences through menus

Enter into SUB 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.

Peak/Valley SUB MENU resets display to present value.

MENU MAPMENU MAP

CONTINUED

SETTINGSSETTINGS

MAIN MENUS SUB MENUS

MENUS

UNAVAILABLE

FOR

BI-DIRECTIONAL

RANGES AND

RANGES ABOVE

25 IN. W.C.

MENUMENU

MENU MAP

MAIN MENUS

SUB MENUS

SETTINGS

MENUS

UNAVAILABLE

FOR

BI-DIRECTIONAL

RANGES AND

RANGES ABOVE

25 IN. W.C.

CONTINUED

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CONTINUEDCONTINUED

MENUMENU

CONTINUED

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MAIN MENUS SUB MENUS

SETTINGS

MENUMENU

MAIN MENUS

SUB MENUS

SETTINGS

Menus present only

in pressure operation

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Model Chart Model

ISDP-002 ISDP-004 ISDP-005 ISDP-006 ISDP-007 IDSP-008 ISDP-009 ISDP-010 ISDP-011 ISDP-012 ISDP-013 ISDP-014 ISDP-015 ISDP-016 ISDP-017

Range

0-0.25˝ 0-1˝ WC 0-2.5˝ WC 0-5˝ WC 0-10˝ WC 0-25˝ WC 0-50˝ WC 0-100˝ WC

-0.1/+0.1˝ WC

-0.25/+0.25˝ WC

-0.5/+0.5˝ WC

-1.0/+1.0˝ WC

-2.5/+2.5˝ WC

-5.0/+5.0˝ WC

-10/+10˝ WC

Main Menu Selections (Upper Right Display Reads

SECr

OPEr

diS

AdU

Security - Lock out access to menus and settings.

Operation - Selection of Pressure, Velocity or Flow and corresponding engineering units.

Display - Monitor and adjust display related settings: Peak, Valley, display

resolution, % output and dampening.

Advanced functions - Modify advanced function parameters, transmitter

output scaling, and calibration.

)

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MAIN MENUS and SUB MENUS

Units visible, so unit is presently set to measure pressure

is presently set to measure pressure

Units not visibleUnits not visible Units not visibleUnits not visible

SECr

(Security) MAIN MENU

SECr

is the only SUB MENU in the security MENU. 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.

Security Level Displayed

Access

All menus access

All settings locked

Password Value to Enter

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

OPEr

(Operation) MAIN MENU

The

OPEr

MENU selects the measurement type of the instrument.

The SUB MENUS are:

PrES

- Pressure

UEL

- Velocity

FLO

- Flow

If the instrument is set for Velocity, the MENU. If the instrument is set for Flow, the

ArEA

SUB MENUS. These will be discussed under Velocity and Flow. When scrolling

through the

OPEr

SUB MENUS, the measurement type the unit is currently set for will

KFAC

ArEA

DIA

- Diameter

OPEr

- K Factor

- Area

XDIM

YDIM

MENU will have an additional

OPEr

MENU will have additional

- X Dimension

- Y Dimension

KFAC

SUB

and

show the units in the upper right display. The other measurement types will have a blank upper right display.

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PrES

(Pressure) SUB MENU

For pressure measurement, the following units are available:

INWC

- Inches of water column

FTWC

- Feet of water column

MMWC

- Millimeters of water column

CMWC

- Centimeters of water column

PSI

- Pounds per square inch

INHG

- Inches of mercury

Table 1 Pressure Range vs. Available Units

INWC

FTWC

.1000 .2500 .5000

1.000

2.500

5.000

10.00

25.00

50.00

100.0

NOTE:

exceeded above or below full scale by 2%.

.2083 .4167 .8333

2.083

4.167

8.333

OVFL

(over flow) or

MMWC

2.540

6.350

12.70

25.40

63.50

127.0

254.0

635.0 1270 2540

CMWC

.2540 .6350

1.270

2.540

6.350

12.70

25.40

63.50

127.0

254.0

UnFL

PSI

.1806 .3613 .9032

1.806

3.613

(under flow) will appear when the ranges have been

INHG

.1839 .3678 .7356

1.839

3.678

7.356

MMHG

- Millimeters of mercury

MBAR

- Millibar

- Pascal

KPA

- Kilopascals

HPA

- Hectopascals

OZIN

- Ounce inches

MMHG

.1868 .4671 .9342

1.868

4.671

9.342

18.68

46.71

93.42

186.8

MBAR

.2491 .6227

1.245

2.491

6.227

12.45

24.91

62.27

124.5

249.1

24.91

62.27

124.5

249.1

622.7 1245 2491 6227

KPA

.1245 .2491 .6227

1.245

2.491

6.227

12.45

24.91

HPA

.2491 .6227

1.245

2.491

6.227

12.45

24.91

62.27

124.5

249.1

OZIN

.1445 .2890 .5780

1.445

2.890

5.780

14.45

28.90

57.80

UEL

(Velocity) SUB MENU

For velocity measurement, the following units are available:

SFPM

- Standard feet per minute

M/S

- Meters per second

Table 2 Available Velocity Ranges

INPUT RANGE INWC

0 - 0.1 0 - 0.25 0 - 0.5 0 - 1 0 - 2.5 0 - 5 0 - 10 0 - 25

NOTE: Air velocity and flow readings are based upon standard dry air conditions with an ambient temperature of 70°F and a barometric pressure of 29.92 INHG.

SFPM RANGE

0 - 1266 0 - 2002 0 - 2832 0 - 4004

0 - 6332 0 - 8954 0 - 12.66 x IK 0 - 20.02 x IK

M/S RANGE

0 - 6.431 0 - 10.17 0 - 14.39 0 - 20.35 0 - 32.17 0 - 45.48 0 - 64.33 0 - 101.7

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(Flow) SUB MENU

For flow measurements the following units are available:

SCFM

- Standard cubic feet per minute

M^3H

- Cubic meters per hour

FLO r

(Flow Range) SUB MENU

- 99.99 x 1K flow range

- 999.9 x 1K flow range

Tables 3 -6 show the flow ranges available, and the maximum duct size that can be set for each input range.

Table 3

FLOr = LO

RANGE IN WC

0.1

0.25

0.5

2.5

Table 5

FLOr = LO

RANGE IN WC

0.1

0.25

0.5

2.5

KFAC

SUB MENU

Maximum Duct Size (English)

SCFM RANGE

99.99 x 1K

MAX. DUCT SIZE, SQ. FT.

78.9

49.9

35.3

24.9

15.7

11.1

7.8

4.9

Maximum Duct Size (Metric)

Mˆ3/Hr RANGE

99.99 x 1K

MAX. DUCT SIZE Mˆ2

4.32

2.73

1.93

1.37

0.86

0.61

0.43

0.27

Table 4

FLOr = HI

RANGE IN WC

0.1

0.25

0.5

2.5

Table 6

FLOr = HI

RANGE IN WC

0.1

0.25

0.5

2.5

Maximum Duct Size (English)

SCFM RANGE

999.9 x 1K

MAX. DUCT SIZE, SQ. FT.

789.8

499.5

353.1

249.7

157.9

111.7

78.9

49.9

Maximum Duct Size (Metric)

Mˆ3/Hr Range

999.9 x 1K

MAX. DUCT SIZE, Mˆ2

43.19

27.31

19.3

13.64

8.63

6.10

4.31

2.73

KFAC

K Factor - becomes accessible if the instrument is set for Velocity or Flow. When

the Digihelic

II Controller is used with a Pitot tube, the manufacturer may specify a K

Factor. The adjustment range is 0.01 to 2.00. The factory setting is 1.

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rEA

DIM

and

DIM

These SUB MENUS become accessible if the instrument is set for flow. When measuring flow, the area of the duct must be specified. Tables 3 and 4 show the input range vs maximum flow and duct size. For a rectangular duct the maximum size is specified in square feet or meters. For a circular duct the maximum size is specified as the diameter. X, Y and circular dimensions are entered in feet with 0.01 foot resolution for

0.1 foot resolution for

ArEA

- Area, select

circular duct is selected, the

selected, the

DIA

- Diameter, enter the diameter of a duct

XDIM

- Enter the “X” dimension of a duct

YDIM

- Enter the “Y” dimension of a duct

SUB MENUS

FLOr = HI

XDIM

, or entered in millimeters with 1 millimeter resolution.

CIR

for a circular duct or

DIA

SUB MENU will be activated. If a rectangular duct is

and

YDIM

SUB MENUS will be activated.

RECT

for a rectangular duct. If a

FLOr = LO

and

d.S

(Display) MAIN MENU

PEAK VALy ZERO

- Peak value

- Valley value

- Zero

rESO

- Resolution

Pd.S

- Process display

DAMP

- Dampening level

PEAK

(Peak) SUB MENU

The Peak feature stores the highest pressure reading the instrument has measured

since the last reset or power up. At power up

pressure reading. To manually reset the

the

PEAK

SUB MENU.

VALy

(Valley) SUB MENU

The valley feature stores the lowest pressure reading the instrument has measured

since the last reset or power up. At power up

pressure reading. To manually reset the

the

VALy

SUB MENU.

PEAK

VALy

PEAK

is reset to the present

value, press the ENTER key while in

VALy

is reset to the present

value, press the ENTER key while in

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ESO

(Resolution) SUB MENU

The Series ISDP Controller is capable of displaying four digits of resolution.

However, at very low pressures the instability of the pressure may cause fluctuations in the least significant digit causing the least significant digit to be of little value. Three digit resolution ( the right of a decimal.

3DIG

- Set display for 3 digit resolution

4DIG

- Set display for 4 digit resolution

Pd.S

(Process Display) SUB MENU

STD

- Display reads pressure, velocity, or flow values

PCT

- Display reads % of full scale value

3DIG

) can only be active when there is at least one digit to

When the display is reading percent, display. The percent display is only available in pressure operation.

DAMP

(Dampening) SUB MENU

Adjust from 1-16

Dampening stabilizes the display from instabilities due to things such as vibration and excessive pressure fluctuations. The dampening setting adjusts the amount of readings that are averaged for each display update. Adjust the dampening value until the display reads a stable value for the application.

AdU

(Advanced) MAIN MENU

POL

- Process output low

POH

- Process output high

ZERO

- Zero calibration

SPAN

- Span calibration

POL

and

POH

(Process Output Low and High) SUB MENUS

This feature is used in pressure operation only.

Process output low and high are used to scale the 4-20 mA output. Set desired display reading for 4mA output, and set reading for 20 mA output. BELOW minimum scale up to maximum scale.

POH

must be higher than

POH. POH

PCT

is displayed in the upper right of the

POH

to the desired display

POL. POL

may be adjusted from

may be adjusted 2%

POL

to 2% ABOVE

POL

to the

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ERO

and

PAN

(Calibration of Zero and Span) SUB MENUS

The lower display reads

ZERO

Calibration

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

this function.

With the display reading Press ENTER again to complete the zeroing of the instrument or press the key to cancel.

SPAN

Calibration

With the display set to key. The upper display will blink. Press ENTER again to complete the calibration or press the

Maintenance

Upon final installation of the Series ISDP intrinsically Safe Differential Pressure Transmitter, no routine maintenance is required. The Series ISDP is not field serviceable and should not 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.

key to cancel.

CAL

in this mode.

ZERO

, press the ENTER key. The upper display will blink.

SPAN

, apply full scale pressure to the unit. Press the ENTER

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ACAD2002

parties for examination without the written consent of said corporation.

to be communicated, disclosed, reproduced or used except as previously authorized in writing by such corporation and must not be submitted to outside

NOTICE: This drawing and the principles and elements of design embodied therein are the exclusive property of DWYER INSTRUMENTS, INC. and are not

ALL ANGLES ±

ALL DECIMAL DIMENSIONS ±

STANDARD TOLERANCES UNLESS NOTED:

NO. BY/DATECHANGES

APPD

CHKD

DWN BY

NAMEDATE

MATERIAL

FINISH

MICHIGAN CITY, INDIANA 46360 U.S.A.

CD = CRITICAL DIMENSION

19-443480-50

01-02-08

KAS

CAR

LRR

FM CONTROL DRAWING

ISDP

SCALE 1:1

CLASS II AND CLASS III RATINGS

REMOVED ITEM 6 PER ECR #22759

KAS

01-15-08

ADDED CLASS II AND III RATINGS PER ECR #23754

AJB

8-6-08

REVISED NOTE 3 TO ADD CANADIAN ELECTRICAL CODE PER ECR #25003

KAS

05-05-09

UPDATE TO ZONES PER DWK 06-11-14, ECR 35481

PFA

6-23-14

1°

.005

CATALOG NUMBERS

ISDP-001 THROUGH ISDP-017

HAZARDOUS (CLASSIFIED) LOCATION

INTRINSICALLY SAFE FOR:

CLASS I DIV. 1 GROUPS A, B, C, D

T4 Ta 0°C TO 72°C TYPE 4X

1. THE INTRINSIC SAFETY ENTITY CONCEPT ALLOWS THE INTERCONNECTION OF TWO FM APPROVED INTRINSICALLY SAFE DEVICES

WITH ENTITY PARAMETERS NOT SPECIFICALLY EXAMINED IN COMBINATION AS A SYSTEM WHEN:

Voc OR Uo OR Vt < Vmax, Isc OR It < Imax< Ca OR Co > Ci + Ccable, La OR Lo > Li + Lcable, Po < Pi

2. EQUIPMENT CONNECTED TO THE ASSOCIATED APPARATUS MUST NOT USE OR GENERATE MORE THAN 250 Vrms OR VDC.

3. DIVISION 1 HAZARDOUS (CLASSIFIED) LOCATIONS INSTALLATIONS MUST BE IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE NFPA 70, ARTICLE 504;

4. NO REVISIONS WITHOUT PRIOR APPROVAL FROM FM RESEARCH.

5. THE ASSOCIATED APPARATUS MANUFACTURERS INSTALLATION INSTRUCTIONS MUST BE FOLLOWED WHEN INSTALLING THIS EQUIPMENT.

ISDP SERIES TRANSMITTER

Vmax = 28VDC

Imax = 93mA

Ci = 22nF

Li = 400uH

Pi = 651mW

FM APPROVED

ASSOCIATED APPARATUS

OPTIONAL SHIELD

NON-HAZARDOUS LOCATION

I.S. SAFETY

GROUND

CLASS II DIV. 1 GROUPS E, F, G

CLASS III DIV. I

ZONE 0 HAZARDOUS LOCATIONS MUST BE IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE NFPA 70, ARTICLE 505; IN US. INSTALLATIONS MUST BE

CLASS I, ZONE 0, GROUPS IIC

T4 Ta 0°C TO 72°C TYPE 4X

IN ACCORDANCE WITH THE CANADIAN ELECTRICAL CODE CSA C22.1, PART 1, APPENDIX F; IN CANADA. ALL INSTALLATIONS MUST BE IN ACCORDANCE

WITH ISA RP-12.6.

6. WARNING - ENCLOSURE PARTS ARE CONSTRUCTED OF ALUMINUM. ENCLOSURE MUST BE PROTECTED FROM MECHANICAL FRICTION AND IMPACT WITH

IRON/STEEL TO PREVENT IGNITION CAPABLE SPARKS.

7. SUBSTITUTION OF PARTS MAY IMPAIR INTRINSIC SAFETY. RETURN TO MANUFACTURER FOR ANY REPAIRS.

8. ADDITIONAL SUFFIXES AT (ALUMINUM TAG), COO (CERTIFICATE OF ORGIN), FC (FACTORY CALIBRATION CERTIFICATE), NIST (NIST TRACEABLE)

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, IN 46360, U.S.A. Fax: 219/872-9057 e-mail: info@dwyermail.com

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Printed in U.S.A. 12/14

FR# 19-443480-00 Rev. 3

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

Dwyer Instruments ISDP-006, ISDP-009, ISDP-008, ISDP-016, ISDP-014 User manual

Specifications and Main Features

Frequently Asked Questions

User Manual