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]
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
advertisement
© 2021