Dwyer Series 626 & 628 User manual

Dwyer Series 626 & 628 User manual
Bulletin P-626-CB
Series 626/628-CB Industrial Pressure Transmitters
®
Specifications - Installation and Operating Instructions
11/32
[34.131]
LIQUID TIGHT FITTING
CORD DIAMETER RANGE
.200 TO .350 [5.08 TO 8.89]
23/32
[18.256]
59/64
[23.415]
3-7/32
[81.756]
2-1/8 [53.975]
2-21/32
OPTIONAL
1/4 NPT OR
[67.46]
LCD
BSPT
FEMALE OPTIONAL
1/4
NPT
OR
FITTING
BSPT MALE
FITTING
6-23/64 [161.528]
The SERIES 626 AND 628 Pressure Transmitters monitors the pressure of compatible
gases and liquids with 0.25% FS accuracy for 626 models or 1.0% FS accuracy for
628 models. The design employs a pressure sensor that can convert a single positive
pressure into a standard 4 to 20 mA output or field selectable voltage output. The
terminal block, as well as a zero adjustment button, are easily accessed under the top
cover. The Series 626 and 628 are designed to meet NEMA 4X (IP66) construction.
PRESSURE LIMITS
Range
*Maximum Pressure Over Pressure
0 to 5 psi
10 psi
50 psi
0 to 15 psi
30 psi
150 psi
0 to 30 psi
60 psi
300 psi
0 to 50 psi
100 psi
300 psi
0 to 100 psi 200 psi
500 psi
0 to 150 psi 300 psi
750 psi
0 to 200 psi 400 psi
1000 psi
0 to 300 psi 600 psi
1500 psi
0 to 500 psi 1000 psi
2500 psi
0 to 600 psi 1200 psi
3000 psi
0 to 1000 psi 2000 psi
5000 psi
0 to 1500 psi 3000 psi
5000 psi
0 to 3000 psi 6000 psi
7500 psi
0 to 5000 psi 7500 psi
10000 psi
0 to 8000 psi 10000 psi
12000 psi
*Pressures exceeding the maximum pressure limit
may cause a calibration shift of up to ±3% of full scale.
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
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 Limits: 0 to 200°F (-18 to 93°C).
Compensated Temperature Limits: 0 to 175°F (-18 to 79°C).
Pressure Limits: See chart.
Thermal Effect: 626: ±0.02% FS/°F; 628: ±0.04% FS/°F (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 Adjustment: Push button inside conduit enclosure.
Response Time: 300 msec.
Loop Resistance: Current output: 0 to 1250 Ω (max), Rmax = 50(Vps-10); Voltage
output: Minimum load resistance = 5 kΩ.
Current Consumption: 38 mA (max).
Electrical Connections: Removable terminal block; 1/2˝ female NPT conduit.
Process Connections: 1/4˝ female or male NPT.
Enclosure Rating: Designed to meet NEMA 4X (IP66) for non-LCD models.
Mounting Orientation: Not position sensitive.
Weight: 10 oz (283 g).
Agency Approvals: CE.
Phone: 219/879-8000
www.dwyer-inst.com
Fax: 219/872-9057
e-mail: [email protected]
INSTALLATION
1. Location: Select a location where the temperature of the unit will be between 0 and
175°F (-18 to 79°C). Distance from the receiver is limited only by total loop resistance.
The tubing feeding pressure to the instrument can be practically any length required,
but long lengths will increase response time slightly.
UNIT BUTTONPRESS TO TOGGLE THE
UNIT (PSI/BAR) ON THE LCD
ZERO BUTTON- PRESS AND
HOLD TO ZERO THE GAGE
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 to more
than 10% of the receiver resistance to total loop resistance. For extremely long runs
(over 1000 ft or 305 m), choose receivers with higher resistance to minimize the size
and cost of connecting leads. Where wiring length is under 100 feet (30.5 m), wire as
small as 22 AWG can be used.
CURRENT (4 to 20 mA) OUTPUT OPERATION
An external power supply delivering 10 to 35 VDC with minimum current capability
of 40 mA DC (per transmitter) is required to power the control loop. See Figure 1 for
connection of the power supply, transmitter, and receiver. The range of appropriate
receiver load resistance (RL) for the DC power supply voltage available is expressed
by the formula:
RL Max = Vps – 10
20 mA DC
+
POWER
SUPPLY
10-35
VCD
LCD
CONNECTOR
Vin (TERM #1)
-
+
RECEIVER
Com (TERM #2)
SHIELD (TERM #4)
RED
BLACK
BLUE
ORANGE
YELLOW
WHITE
Figure 2: Current Output with Optional LCD
Shielded cable is recommended for control loop wiring.
Electrical connections to the Series 626/628-CB pressure transmitters are made to the
terminal block located inside the housing. Remove the screws and lift off the cover.
Lift off the terminal block for wiring. Wire as show in Figure 1 or 2. Use Figure 1 for
current output connection. Use Figure 2 for current output with optional LCD display. If
ordering pre-wired cable, black wire is negative (-) and red wire is positive (+).
1
PRESSURE 2
TRANSMITTER 3
4
+
-
VIN
COM
+
RECEIVER
-
SHIELD
Figure 1: Current Output Connection
M-12 Pin Connector with Current Output
For the optional M-12 4 pin connector, wire to pins as shown in Figure 3.
TERMINAL 4: (-)
TERMINAL 1: (+)
TERMINAL 3:
(GROUND)
POWER
SUPPLY
10-35 VDC
Figure 3: Current Output with Optional M-12 4 Pin Connector
VOLTAGE (0 to 5, 1 to 5, 0 to 10, or 2 to 10 V) OUTPUT OPERATION
To select the voltage output that is going to be used, configure the DIP switches
according to the Figure 4 below. Power must be cycled whenever dip switches are
changed to select output.
2
1
ON
2
ON
+
OFF
-
OFF
0 to 10 VDC
1
2 to 10 VDC
2
1
ON
ON
OFF
OFF
2
Figure 4: Voltage Output DIP Switch Selection
1
2
PRESSURE
TRANSMITTER 3
4
ZERO BUTTON- PRESS AND
HOLD TO ZERO THE GAGE
1 to 5 VDC
0 to 5 VDC
1
UNIT BUTTONPRESS TO TOGGLE THE
UNIT (PSI/BAR) ON THE LCD
VIN
COM
VO
RECEIVER
-
SHIELD
RED
BLACK
BLUE
LCD
CONNECTOR
VOLTAGE
SELECTION
DIP SWITCH
ORANGE
YELLOW
WHITE
Figure 6: Voltage Output with Optional LCD
+
+
POWER
SUPPLY
13-35 VDC
OR
ISOLATED
16-33 VAC
Vin (TERM #1)
Com (TERM #2)
+ Vo (TERM #3)
RECEIVER SHILED (TERM #4)
POWER
SUPPLY
13-35 VDC OR
16-33 VAC
M-12 4 Pin Connector with Voltage Output
For the optional M-12 4 pin connector, wire to pins as shown in Figure 7.
TERMINAL 4: (-)
TERMINAL 1: (+)
TERMINAL 3:
(GROUND)
Figure 5: Voltage Output Connection
TERMINAL 2:
(Vout)
Figure 7: Voltage Output with Optional M-12 4 Pin Connector
MODEL CHART
Example
Series
626 -02 -CB -P1 -E2 -S8 -NIST 626-02-CB-P1-E2-S8-NIST
626
0.25% full scale accuracy
628
1.0% full scale accuracy
Range
06
0 to 5 psi
07
0 to 15 psi
08
0 to 30 psi
09
0 to 50 psi
10
0 to 100 psi
11
0 to 150 psi
12
0 to 200 psi
13
0 to 300 psi
14
0 to 500 psi
22
0 to 600 psi
15
0 to 1000 psi
16
0 to 1500 psi
18
0 to 3000 psi
19
0 to 5000 psi
26
0 to 8000 psi
Housing
CB
Conduit box housing
Process Connection
P1
1/4˝ male NPT
P2
1/4˝ female NPT
P3
1/4˝ male BSPT
P4
1/4˝ female BSPT
Electrical Connection
E1
Cable gland with 3´ prewired cable
E2
Cable gland with 6´ prewired cable
E3
Cable gland with 9´ prewired cable
E5
1/2˝ female NPT conduit
E9
M-12 4 pin connector (not UL)
Signal Output
S1
4 to 20 mA
S8
Selectable 0 to 5, 1 to 5, 0 to 10, or 2 to 10 VDC
Options
AT
Aluminum tag
LCD LCD display
NIST NIST traceable calibration certificate
SPCL Special cleaning for oxygen use
*Pressures exceeding the working pressure limit may cause a calibration shift of up to ±3% of full scale.
MAINTENANCE/REPAIR
Upon final installation of the Series 626/628-CB Industrial Pressure Transmitter, no
routine maintenance is required. The Series 626/628-CB is not field serviceable and
is not possible to repair the unit. Field repair should not be attempted and may void
warranty.
WARRANTY/RETURN
Refer to “Terms and Conditions of Sale” in our catalog and on our website. Contact
customer service to receive a Return Goods Authorization number before shipping the
product back for repair. Be sure to include a brief description of the problem plus any
additional application notes.
©Copyright 2018 Dwyer Instruments, Inc.
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Printed in U.S.A. 2/18
FR# 443271-30 Rev. 4
Phone: 219/879-8000
www.dwyer-inst.com
Fax: 219/872-9057
e-mail: [email protected]
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement