Dwyer HADP - Manual

The Series HADP transmitter has been carefully calibrated before shipment
to you, and it should be handled with the same care given any precision
instrument. Pressure range and dimensions are reported on the applicable
specifications bulletin.
Ambient Conditions
Do not submerge in liquids, use in ambient conditions corrosive to
anodized aluminum, subject to spray or dripping, or use in a high
vibration environment. The transmitter is very slightly sensitive to
acceleration in the pressure fitting axis. Installation is recommended in
the vertical position, with the pressure port downward. This position
minimizes damage from drippage of pressure system piping.
Installation of Pressure Fittings
Your transmitter is designed for most accurate operation when
subjected to pressures within the designated pressure range. Refer to
the specifications for proof pressure limits. Subjection to excessive
pressure voids the warranty. Do not overpressure.
Standard sealants such as pipe tape generally are satisfactory. For the
most sensitive pressure ranges, excessive high torquing of a metal
pressure fitting may cause slight zero shift which may be trimmed out
using the zero adjustment. Use of a plastic fitting often shows no
noticeable zero shift. The torquing effect does not appreciably affect
linearity or sensitivity. The wrench flat on the Series HADP should be
used when installing the positive pressure fitting.
Series HADP High Accuracy Differential Pressure Transmitter
Specifications - Installation and Operating Instructions
Bulletin P-HADP
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
SPECIFICATIONS
Service: Compatible non-conducting
air/gas.
Wetted Parts:
Positive (high) Pressure Port:
Gases compatible with SS, hard
anodized 6061 aluminum (Buna-N
O-ring);
Reference (low) Pressure Port:
Anodized aluminum, alumina
ceramics, gold, fluorocarbon
elastomer sealant & Buna-N O-ring.
Accuracy: <±0.14% FS.
Stability: <±0.1% FS over 6 months @
70°F (21°C).
Pressure Limits: See Model Chart.
Temperature Limits:
Operating: 0 to 175°F
(-18 to 71°C);
Storage: -65 to 250°F
(-53 to 121°C).
Compensated Temperature Range:
30 to 150°F (-1 to 65°C).
Thermal Effect: <±1.0% FS / 100°F.
Power Requirements: 17 to 42 VDC.
Output Signal: 4 to 20 mA for current
models, 0 to 5 VDC for voltage models.
Zero and Span Output:
Zero output: Factory set to within
±0.07 mA;
Span (FS) output: Factory set to
within ±0.07 mA.
Loop Resistance:
Minimum supply voltage (VDC) = 17
+ 0.02 x Resistance of receiver plus
line;
Maximum supply voltage (VDC) =
42 + 0.004 x Resistance of receiver
plus line.
Zero and Span Adjustments: None.
Response Time: <5 msec.
Current Consumption: <30 mA.
Electrical Connections: 2 ft multi-
conductor cable.
Process Connections: 1/8˝-27 NPT
internal (both positive and negative
ports).
Mounting Orientation: Pressure port
90° parallel to ground.
Thermal Effects: Max. zero: ±1.0
(±1.8); %FS / 100°F (100°C) max.
Weight: 8 oz (227 g).
Agency Approval: CE.
3-1/4
[82.55]
3
[76.2]
Ø2-47/64
[69.45]
1/8
[3.18]
5/16
[7.94]
1/8
[3.18]
4x Ш5/32 [Ш3.97]
MOUNTING HOLES
7/8
[22.23]
1-1/2
[38.1]
4x 6-32UNC-2B
7/64 [2.78] MIN FULL THRD
CABLE
2´ LONG
2
[50.8]
5/16
[7.94]
1-3/32
[27.78]
1/8-27
NPT PORT
1-1/16
[26.99]
1-1/16
[26.99]
5/8
[15.88]
3/16
[4.76]
2-3/32
[53.18]
33/64
[13.1]
P-HADP:SSS-1000 12/27/10 3:46 PM Page 1