DWYER INSTRuMENTS, INC.
Phone: 219/879-8000
www.dwyer-inst.com
P.O. BOx 373 • MICHIGAN CITY, INDIANA 46360, u.S.A.
Fax: 219/872-9057
e-mail: [email protected]
Series 626 & 628 Pressure Transmitters
Specifications - Installation and Operating Instructions
Bulletin E-111
Pressure Ranges
Pressure
Range
0-15 psia
15-0 psia
0-30 psia
0-50 psia
0-100 psia
0-200 psia
0-300 psia
0-5 psig
0-15 psig
0-30 psig
0-50 psig
0-100 psig
0-150 psig
0-200 psig
0-300 psig
0-500 psig
0-1000 psig
0-1500 psig
0-2000 psig
0-3000 psig
0-5000 psig
0-8000 psig
Over
Pressure
45 psia
45 psia
90 psia
150 psia
300 psia
600 psia
900 psia
50 psig
150 psig
300 psig
300 psig
500 psig
750 psig
1000 psig
1500 psig
2500 psig
5000 psig
5000 psig
5000 psig
7500 psig
10000 psig
12000 psig
Maximum
Pressure
30 psia
30 psia
60 psia
100 psia
200 psia
400 psia
600 psia
10 psig
30 psig
60 psig
100 psig
200 psig
300 psig
400 psig
600 psig
1000 psig
2000 psig
3000 psig
4000 psig
6000 psig
7500 psig
10000 psig
CAuTION:
Do not exceed specified supply voltage ratings.
Permanent damage not covered by warranty will result. This device
is not designed for 120 or 240 volt AC operation. Use only on 13 to
30 VDC.
The Series 626 and 628 Pressure Transmitters
converts a single positive
pressure into a standard 4-20 mA output signal. The Series 626 and 628 can be
used to accurately measure compatible gases and liquids; Series 626 full scale
accuracy is 0.25%; Series 628 full scale accuracy is 1.0% (see specifications).
Designed for industrial environments with a NEMA 4X (IP66) housing, this
transmitter resists most effects of shock and vibration.
SPECIFICATIONS
Service:
Compatible gases and liquids.
Wetted Materials:
Type 316 SS.
Accuracy:
626: 0.25% FS, 0.20%
RSS; 628: 1.0% FS, 0.5% RSS; 626
absolute ranges: 0.5% FS, 0.35% RSS.
(Includes linearity, hysteresis, and
repeatability).
Temperature Limit:
0 to 200°F (-18 to
93°C).
Compensation Temperature Range:
0 to 175° (-18 to 79°C).
Thermal Effect:
626: ±0.02% FS/°F.
628: ±0.04% FS/°F (includes zero and
span).
Pressure Limits:
See table.
Power Requirements:
10-30 VDC (for
4-20 mA, 0-5, 1-5, 1-6 VDC outpus);
13-30 VDC (for 0-10, 2-10 VDC
outputs); 5 VDC ±0.5 VDC (for 0.5-4.5
VDC ratio-metric output).
Output Signal:
4-20 mA, 0-5 VDC,1-5
VDC, 0-10 VDC, or 0.5-4.5 VDC.
Response Time:
300 ms.
Loop Resistance:
0-1000 Ohms max.
R max = 50 (Vps-10) Ohms (4-20 mA
output), 5K Ohms (0-5, 1-5, 1-6, 0-10,
2-10, 0.5-4.5 VDC output).
Current Consumption:
38 mA
maximum (for 4-20 mA output); 10 mA
maximum (for 0-5, 1-5, 1-6, 0-10, 2-10,
0.5-4.5 VDC output); 140 mA
maxumum (for all 626/628/629-CH with
optional LED).
Electrical Connections:
Conduit
Housing (-CH): terminal block, 1/2˝
female NPT conduit; General Purpose
Housing (-GH): cable DIN EN 175801-
803-C.
Process Connection:
1/4˝ male or
female NPT and BSPT.
Enclosure Rating:
NEMA 4X (IP66).
Mounting Orientation:
Mount in any
position.
Weight:
10 oz (283 g).
Agency Approvals:
CE.
INSTALLATION
1. Location:
Select a location where the temperature of the transmitter will be
between 0 and 175°F (-18 to 79°C). Distance from the receiver is limited only by
total loop resistance. The tubing or piping supplying pressure to the unit can be
practically any length required but long lengths will increase response time slightly.
2. Position:
The transmitter is not position sensitive. However all standard models
are originally calibrated with the unit in a position with the pressure connection
downward. Although they can be used at other angles, for best accuracy it is
recommended that units be installed in the position calibrated at the factory.
3. Pressure Connection:
Use a small amount of plumber’s tape or other suitable
sealants to prevent leaks. Be sure the pressure passage inside the port is not
blocked.
4. Electrical Connections
Wire Length
-The maximum length of wire connecting the transmitter and receiver
is a function of wire size and receiver resistance. Wiring should not contribute more
than 10% of the receiver resistance to total loop resistance. For extremely long
runs (over 1000 feet), choose receivers with higher resistance to minimize the size
and cost of connecting leads. Where wiring length is under 100 feet, wire as small
as 22 AWG can be used.
-CH Conduit Housing
LIQUID TIGHT FITTING
CORD DIAMETER RANGE
.200 to .350 (5.08 to 8.89)
1-9/32
[32.54]
2-15/16 [74.61]
OPTIONAL 1/4 NPT
FEMALE FITTING
3-1/2 [88.90]
1/4 NPT
MALE FITTING
3/4
[19.05]
1/4 NPT
5-1/2 [139.70]
1-3/32
[27.76]
-GH General Purpose Housing
7/8 [22.23]
HEX
1/4 NPT
2-27/64 [61.52]
3-13/64 [81.36]
055/64 [21.83]
www.
.com
1.800.561.8187
