62-0210—07 - P7640A,B Differential Pressure Sensors
Contents
1. mA output gt Vin Vac SJ A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A TEMPERATURE SIGNAL CONNECTIONS ARE NOT POLARITY SENSITIVE M18302B Fig 3 Typical wiring for three wire pressure sensor with Vdc output used with the XL15A Controller 62 0210 07 Table 2 Range Selection Guide Rotary 1 in Models 10 in Models Switch 0 1 0 250 0 10 0 2500 Position in w c Pascal in w c Pascal 0 0 1 25 1 250 1 0 25 50 1 250 2 0 5 100 1 250 3 1 250 1 250 4 1 250 2 5 500 5 1 250 5 1000 6 1 250 10 2500 7 1 250 10 2500 P7640A B DIFFERENTIAL PRESSURE SENSORS OPERATION IMPORTANT During the first few minutes of operation read ings at zero pressure and lowest pressure ranges appear erroneous Following this initial warm up period the P7640 maintains specified accuracy and stability The display momentarily indicates SET when a selection is made In normal operation pressure indications are in W C Zeroing IMPORTANT Perform zeroing only when both Zero ports are exposed to the same pressure Zeroing the device automatically resets the output and displays zero pressure To do this either Press and hold the ZERO pushbutton for 2 seconds or Provide contact closure on the ZERO terminals To ensure this place a piece of jumper tubing between HI and LO NOTE To avoid accidental zero2. this feature is enabled only while detected pressure is within 5 of factory calibration 62 0210 07 P7640A B DIFFERENTIAL PRESSURE SENSORS APPENDIX IMPORTANT This page is only for models with date code prior to 0816 Pre 0816 Date Code Configuration Select the proper output mode and pressure range using the switches and jumpers 1 Select output using the output switch a Current mA then skip to step 3 or b Voltage Volt 2 Select 0 10 Vdc or 0 5 Vdc using jumper J4 3 Select bi or uni directional mode using jumper J5 NOTE Setting for 0 to 1 in w c and bi directional will give output from 1 0 to 1 0 in w c 4 Select appropriate full scale pressure range using the slide switch NOTE Note that either the 1 in w c or 10 in w c scale is marked This is the available scale for that given model When the range is changed the LCD models momentarily indicate selected range WIRING FIG 4 THROUGH 5 N CAUTION Equipment Damage Hazard Can damage the device beyond repair Disconnect power supply before installation NOTE Wiring to the ZERO terminals is optional PWR OUT COM ZERO MODE PWR OUT COM ZERO oe jas 8ssss L__ am 889896 sient Mvorr vor mA VOLT Ooy SV 0V VI 10 CONTROLLER METER OR RECORDER A INPUT SIGNAL CONTROLLER 12 70 40 Vde METER OR COMMON i ii RECORDER POWER SUPPLY A A L2 INPUT SIGNAL COMMON A POWER SUPPLY PR
3. OVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED POLARIZED SECONDARY INDICATIONS FOR USE WITH DC POWER SUPPLY ONLY A DRY CONTACT A AUTOMATICALLY ZERO THE SENSOR DRY CONTACT TO AUTOMATICALLY ZERO THE SENSOR UPON n A M22555A CLOSURE OPTIONAL M22554A Fig 5 Wiring for current mA output Fig 4 Wiring for voltage Vdc output LonSpec is a trademark of Echelon Corporation By using this Honeywell literature you agree that Honeywell will have no liability for any damages arising out of your use or modification to the literature You will defend and indemnify Honeywell its affiliates and subsidiaries from and against any liability cost or damages including attorneys fees arising out of or resulting from any modification to the literature by you Automation and Control Solutions Honeywell International Inc Honeywell 1985 Douglas Drive North U S Registered Trademark Golden Valley MN 55422 2014 Honeywell International Inc i 62 0210 07 M S Rev 07 14 customer honeywell com Printed in United States
4. P7640A B Honeywell Differential Pressure Sensors APPLICATION The P7640A Panel Mount and P7640B Duct Mount Differential Pressure Sensors provide reliable accurate measurement and control Proper applications include measurement of extremely low pressure applications such as building room pressure air flow variable air volume filter status and duct pressure They are ideal for clean rooms hospitals fume hoods and computer rooms The P7640 Pressure Sensors are designed with field selectable 4 20 mA 0 5 Vdc or 0 10 Vdc output The four pressure ranges fall between 0 1 in w c 0 250 Pa or 0 10 in w c 0 2500 Pa depending on the model Accessory 32003169 001 Duct Pressure Pick up Probe 4 in INSTALLATION When Installing this Product 1 Read these instructions carefully Failure to follow them could damage the product or cause a hazard ous condition 2 Check ratings given in instructions and on the product to ensure the product is suitable for your application 3 Installer must be a trained experienced service technician 4 After installation is complete check out product operation as provided in these instructions IMPORTANT All wiring must agree with applicable codes ordinances and regulations Mounting Screw holes are accessed inside the enclosure with the cover removed and are located in the upper left and lower right corners Panel Mount Run tubing from one static or both different
5. ial barb fittings making sure the typically higher pressure source is connected to the port labeled HI and the typically lower pressure source is connected to the port labeled LO INSTALLATION INSTRUCTIONS Duct Mount The units with the integral probe should typically be mounted at the high pressure location when used for differential control CONFIGURATION Select the proper output mode and pressure range using the switches and jumpers 1 Select output using the output switch a Current mA then skip to step 3 or b Voltage Volt 2 Select 0 10 Vdc or 0 5 Vdc using jumper J4 3 Select bi or uni directional mode using jumper J5 NOTE Setting for 0 to 1 in w c and bi directional will give output from 1 0 to 1 0 in w c 4 Select inches w c or Pascal scale using jumper J7 5 Select fast or standard response time using jumper J8 6 Select appropriate full scale pressure range using the rotary switch Align arrow not the slot to the desired range See Table 2 for the range selection guide NOTE Note that either the 1 in w c or 10 in w c scale is marked This is the available scale for that given model When the range is changed the LCD models momentarily indicate selected range 7 Set output according to Table 1 Table 1 Controller Compatibility and Output Settings Required Sensor LonSPec Controller Output Setting Setting W7750 W7760 W7761 4 20 mA FilterPress or P7610B Fi
6. lterPress or P7610F or voltage 0 5 Vdc nla 62 0210 07 W7750B W7760C W7753 W7760 Non Honeywell 0 10 Vdc default P7640A B DIFFERENTIAL PRESSURE SENSORS WIRING FIG 1 THROUGH 3 CAUTION Equipment Damage Hazard Can damage the device beyond repair Disconnect power supply before installation NOTE Wiring to the ZERO terminals is optional RESPONSE FAST STD JP8E EI UNITS IN W C PA JP7 CTA MODE BI UNI JSE VOLT mA VOLT SV M0V OUTPUT JP4G E PWR OUT COM ZERO CONTROLLER METER OR RECORDER INPUT SIGNAL A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED POLARIZED SECONDARY INDICATIONS FOR USE WITH DC POWER SUPPLY ONLY DRY CONTACT TO AUTOMATICALLY ZERO THE SENSOR UPON CLOSURE OPTIONAL M27291 Fig 1 Wiring for voltage Vdc output W7760A CAUTION Equipment Damage Hazard Can damage the device beyond repair Do not apply power to output terminal Permanent equipment damage will result RESPONSE FAST STD JP8E F UNITS IN W C PA JP7 ETA MODE PWR OUT COM ZERO BI UNI JPSE E QYYOO vere VOLT SV 10V OUTPUT JAETA CONTROLLER METER OR RECORDER 12 TO 30 Vdc POWER SUPPLY A DRY CONTACT TO AUTOMATICALLY ZERO THE SENSOR UPON CLOSURE OPTIONAL INPUT SIGNAL COMMON M27292 Fig 2 Wiring for current
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