Dwyer Instruments ISDP series Installation and operating instructions

Bulletin A-25
Series ISDP Intrinsically Safe Differential Pressure Transmitter
Specifications - Installation and Operating Instructions
DWYER INSTRU ENTS, INC. Phone: [phone] www.dwyer-inst.com
P.O. BOX 373 • ICHIGAN CITY, IN 46360, U.S.A. Fax: [phone] e-mail: [email protected]
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ARE OPTIONAL
4X ø3/16 [4.76] CLEARANCE
HOLES FOR MOUNTING
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MOUNTING HOLE
PATTERN
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#8 LOCK
WASHER
BRACKET ASSEMBLY
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1
DI ENSIONS
OPTIONAL A-438 BRACKET
OUNTING DIAGRA
Shown with Optional A-438 ounting Bracket
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2
SPECIFICATIONS
Service: Air and non-corrosive gases.
Wetted aterials: 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 aterials: 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 P N Connector.
Process Connections: 1/8 female NPT.
Enclosure Rating: Designed to meet NEMA 4x ( P66).
ounting 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: S / , , / 1 / ABCDEFG / T4 Ta = 0°C to 72° - 19-
443480-50; ENT TY; TYPE 4X (US AND CANADA) / 0 AEx ia / C / T4 Ta = 0°C to 72°
- 19-443480-50; ENT TY; TYPE 4X (US) / 0 / Ex ia / C / T4 Ta = 0°C to 72° - 19-
443480-50; ENT TY; TYPE 4X (CANADA) CE. CENELEC EN 61326/55024: 2003; EC
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
i = 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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MAXIMUM VALUE (1250Ω)
OPERATING 
REGION
R LMAX= Vps-10.0
20mA DC
VDC
05101315
20 25 30 35
TOT
AL RECEIVER RESISTANCE (Ω)
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
50
40
ISDP
TRANSMITTER
RECEIVER
POWER
SUPPLY
10-35 VDC
mA
3
-------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)
A-231 M-12 Cable Colors
P N 1 is Brown (positive)
P N 3 is Blue (negative)
Use Model A-231 shielded cable with 4 pin Female M-12 connection.
-12 Connector
2-WIRE CONNECTION
Fig. C
3
2
1
4
+
Fig. D
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4
MENUMENU
EE
HO E POSITION
FUNCTION
Allows access to
the menus
Displays full scale
range of unit
AIN ENU
FUNCTION
Return to home
position
Sequences through menus
Sequences through menus
Enter into SUB MENU
SUB ENU
FUNCTION
Return to previous menu
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.
Peak/Valley SUB MENU
resets display to present
value.
MENU
UP
ARROW
DOWN
ARROW
ENTER
KEY FUNCTIONS
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 SDP
with a 1/2˝ wrench to prevent the fitting on the SDP from turning.
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5
MENU MAPMENU MAP
CONTINUED
CONTINUED
SETTINGSSETTINGS
MAIN MENUS SUB MENUS
MENUS
UNAVAILABLE
FOR
BI-DIRECTIONAL
RANGES AND
RANGES ABOVE
25 IN. W.C.
EE
MENUMENU
ENU AP
MA N MENUS SUB MENUS SETT NGS
CONT NUED
MENUS
UNAVA LABLE
FOR
B -D RECT ONAL
RANGES AND
RANGES ABOVE
25 N. W.C.
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6
CONTINUEDCONTINUED
EE
MENUMENU
CONT NUED
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MAIN MENUS SUB MENUS SETTINGS
7
Menus present only
in pressure operation
EE
MENUMENU
MA N MENUS SUB MENUS SETT NGS
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8
ain enu Selections (Upper Right Display Reads MENU )
SECr Security - Lock out access to menus and settings.
OPEr Operation - Selection of Pressure, Velocity or Flow and corresponding
engineering units.
dS Display - Monitor and adjust display related settings: Peak, Valley, display
resolution, % output and dampening.
AdU Advanced functions - Modify advanced function parameters, transmitter
output scaling, and calibration.
odel Chart
odel
SDP-002
SDP-004
SDP-005
SDP-006
SDP-007
DSP-008
SDP-009
SDP-010
SDP-011
SDP-012
SDP-013
SDP-014
SDP-015
SDP-016
SDP-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
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9
AIN ENUS and SUB ENUS
SECr (Security) AIN ENU
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.
The password values shown in the table cannot be altered, so retain a copy
of these pages for future reference.
OPEr (Operation) AIN ENU
The OPEr MENU selects the measurement type of the instrument.
The SUB MENUS are:
PrES - Pressure KFAC - K Factor XDIM - X Dimension
UEL - Velocity ArEA - Area YDIM - Y Dimension
FLO - Flow DIA - Diameter
f the instrument is set for Velocity, the
OPEr MENU will have an additional KFAC SUB
MENU. f the instrument is set for Flow, the
OPEr MENU will have additional KFAC and
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
show the units in the upper right display. The other measurement types will have a blank
upper right display.
Security Level
Displayed
1
2
Access
All menus access
All settings locked
Password Value
to Enter
10
70
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
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