Series 629C Wet/Wet Differential Pressure Transmitter
Specifications - Installation and Operating Instructions
Bulletin P-629C
The
SERIES 629C
Wet/Wet Differential Pressure Transmitter monitors differential
pressure of compatible gases and liquids with 0.5% accuracy. The design employs
dual pressure sensors converting pressure changes into a 4 to 20 mA or voltage output
signal. Small internal volume and minimal moving parts result in exceptional response
and reliability. The wiring terminals and zero adjustment button are easily accessed
under the removable cover. The Series 629C is designed to meet NEMA 4X (IP66)
weatherproof construction.
SPECIFICATIONS
Service:
Compatible gases and liquids.
Wetted Materials:
Without valve: 316,
316L SS. Additional wetted parts with
valve option: Buna-N, silicone grease,
PTFE, brass 360, copper, and reinforced
copolymer.
Accuracy:
±0.5% FS (includes linearity,
hysteresis & repeatability).
Stability:
±1% FS/year.
Temperature Limits:
0 to 200°F (-18 to
93°C).
Compensated Temperature Limits:
0
to 175°F (-18 to 79°C).
Pressure Limits:
See Table 1.
Thermal Effects:
Avg 0.04%/°F
(0.072%/°C) (includes zero and span).
Power Requirements:
2-wire: 10 to 35
VDC; 3-wire: 13 to 35 VDC or isolated 16
to 33 VAC (reverse polarity protected).
Output Signal:
2-wire: 4 to 20 mA;
3-wire: Field selectable 0 to 5, 1 to 5, 0
to 10, or 2 to 10 VDC.
Zero and Units:
Push buttons inside
conduit enclosure.
Response Time:
400 msec.
Loop Resistance:
Current output: 0
to 1250 Ω (max), Rmax = 50(Vps-10);
Voltage output: Minimum load resistance
= 5 kΩ.
Current Consumption:
28 mA (max).
Electrical Connections:
Removable
terminal block; 1/2˝ female NPT conduit.
Process Connections:
1/4˝ female or
male NPT.
Display:
Optional 4-1/2 digit LCD field
attachable display.
Enclosure Rating:
Designed to meet
NEMA 4X (IP66) for non-LCD models.
Mounting Orientation:
Not position
sensitive.
Weight:
10.1 oz (286 g).
Agency Approvals:
CE.
3-7/64
[78.83]
1-11/32
[34.29]
43/64
[17.15]
1-27/64
[35.98]
1-31/32
[50.16]
OPTIONAL
LCD
5-15/16 [150.88]
1/4 NPT FEMALE FITTING
7 [177.80]
OPTIONAL 1/4 NPT MALE FITTING
RANGE
Range Number Range
Working Pressure* Over Pressure
01
02
03
04
05
06
07
08
09
11
12
13
14
15
16
17
18
19
0 to 5 psid
0 to 10 psid
0 to 25 psid
0 to 50 psid
0 to 100 psid
0 to 150 psid
0 to 200 psid
0 to 300 psid
0 to 500 psid
0 to 0.5 bar differential
0 to 1 bar differential
0 to 2 bar differential
0 to 4 bar differential
0 to 6 bar differential
0 to 10 bar differential
0 to 15 bar differential
0 to 20 bar differential
0 to 30 bar differential
10 psi
20 psi
50 psi
100 psi
200 psi
300 psi
400 psi
600 psi
1000 psi
1 bar
2 bar
4 bar
8 bar
12 bar
20 bar
30 bar
40 bar
60 bar
50 psi
50 psi
120 psi
250 psi
500 psi
750 psi
1000 psi
1200 psi
2000 psi
3 bar
8 bar
8 bar
18 bar
18 bar
50 bar
60 bar
80 bar
120 bar
*Pressures exceeding the working pressure limit may cause a calibration shift
of up to ±3% of full scale.
Note:
Over pressure of all models with 3-way valve is 100 psi.
Table 1: Pressure Limits
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: 219/879-8000
Fax: 219/872-9057
www.dwyer-inst.com
e-mail: [email protected]
®
www.
GlobalTestSupply
.com
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