Series 2000 Humidity/Temperature Sensors
Contents
1. L TEE J M33163 H7625A H7635A H7626A H7636A SERIES 2000 HUMIDITY TEMPERATURE SENSORS Table 3 Test and Calibration Settings 8 Switch Block Setting 1 2 3 4 5 6 7 8 4 20mA Outpt j de a 0 m XS Ie dem Wem 0 5 VDC Output On On 0 10 VDC Output On On 096 RH Output On 5096 RH Output On 10096 RH Output On Increment RH Output On On Decrement RH Output On On Reset to Original Calibration On On On Reverse or Direct Acting On On On Reverse or Direct Acting Reset On On On On Switch setting does not affect output This switch needs to be activated first ndicates OFF 7 62 0327 03 H7625A H7635A H7626A H7636A SERIES 2000 HUMIDITY TEMPERATUHE SENSORS CALIBRATION NOTE This is only a single point calibration All transmitters are factory calibrated to meet exceed published specifications Field adjustment should not be neces sary The dipswitch allows the user to calibrate the sensor through the software Setting switch 4 ON will put the transmitter into setup mode allowing the increment and decrement to work Once in setup mode the output will change to 5096 2 5V for2. 2011 Honeywell International Inc 62 0327 03 S B Rev 11 11 customer honeywell com Printed in United States
3. Fig 6 Typical wiring diagram for 5 wire temperature humidity sensor with Vdc output used with the XL15A controller 62 0327 03 4 H7625A H7635A H7626A H7636A SERIES 2000 HUMIDITY TEMPERATUHE SENSORS COM HUMIDITY SENSOR 4 20mA VIN COM VOUT TEMP M31268 Fig 7 Typical wiring diagram for 5 wire temperature humidity sensor with Vdc output used with the Spyder controller CHECKOUT N CAUTION Equipment Damage Hazard Can short electric circuitry Never connect 120 Vac to the transducer Connect only DC voltage to a transducer intended for DC supply NOTE Use laboratory quality meters and gauges for appli cations requiring a high degree of accuracy 1 Verify that the transducer is mounted in the correct position 2 Verify appropriate input signal and voltage supply 3 Verify appropriate configuration range Converting Output Signal to Percent RH 4 to 20mA Signal mA signal 4 0 16 2 percent RH Example 12mA output signal 12 4 0 16 50 RH 0 to 5 Signal VDC signal 0 05 percent RH Example 1 25vdc output signal 1 25 0 05 25 RH 0 to 10 Signal VDC signal 0 10 percent RH Example 7 50vdc output signal 7 50 0 10 75 RH Table 2 Troubleshooting Problem Items to Check No reading e Verify correct supply voltage at the power terminal blocks Verify correct wiring configuration and DIP switch settings per Figures 2 and 3
4. 0 5V 5V for 0 10V 12mA for 4 20mA Each increment or decrement step will cause the output to change by 0 1V for 0 5V 0 2V for 0 10V and 0 32mA for 4 20mA in setup mode This can be used to show the user how far offset the transmitter is To see the starting point again set switch 1 ON This will show the 50 output again When the unit is out of setup mode the output will go back to RH output Increment RH Output This will shift the RH output linearly up in 0 5 steps Switch 4 must be set to ON first After switch 4 is on each time switch 5 is set ON the RH output will increase by 0 596 The increase goes into effect each time switch 5 is set to ON Automation and Control Solutions Honeywell International Inc 1985 Douglas Drive North Golden Valley MN 55422 Decrement RH Output This will shift the RH output linearly down in 0 526 steps Switch 4 must be set to ON first After switch 4 is on each time switch 6 is set ON the RH output will decrease by 0 5 The decrease goes into effect each time switch 6 is set to ON Reset RH Output This will reset the RH output back to the original calibration Switch 4 must be set to ON first After switch 4 is on toggle switches 5 and 6 ON then OFF After 5 and 6 are OFF slide switch 4 OFF When all calibration is completed remember to place the switches back into the positions that correspond to the output needed as shown in Figure 3 Honeywell U S Registered Trademark
5. 20mA With switches 2 and 4 ON each time switch 5 is set to ON the output will change to reverse acting or direct acting To reset the unit to the default setting toggle both switches 5 and 6 ON then OFF while both switches 2 and 4 are ON When all calibration is completed remember to place the switches back into the positions that correspond to the output needed as shown in Figure 3 H7625A H7635A H7626A H7636A SERIES 2000 HUMIDITY TEMPERATUHE SENSORS WIRING A 16 to 22 AWG shielded cable is recommended for all transmitters Twisted pair may be used for 2 wire current output transmitters Refer to Figure 3 for wiring diagrams VOLTAGE OUTPUT SIGNAL TEMPERATURE SENSOR TEMPERATURE SENSOR 0 10 OR 0 5 VDC OUTPUT SIGNAL SUPPLY GROUND SIGNAL COMMON SUPPLY VOLTAGE J TB1 4 20mA VIN COM VOUT TEMP 2 WIRE CURRENT OUTPUT SIGNAL TEMPERATURE SENSOR TEMPERATURE SENSOR SUPPLY VOLTAGE 4 20mA OUTPUT TB1 4 20mA VIN COM VOUT TEMP 3 WIRE CURRENT OUTPUT SIGNAL TEMPERATURE SENSOR TEMPERATURE SENSOR SUPPLY GROUND SIGNAL COMMON SUPPLY VOLTAGE 4 20mA OUTPUT al lol fal ial TB1 4 20mA VIN COM VOUT TEMP M31180A Fig 3 Wiring Diagrams N CAUTION It is recommended that you use an isolated UL listed class 2 transformer when powering the unit with 24 VAC Failure to wire the devices with the correct polarity when sharing transformers may result in damage to any devi
6. Honeywell H7625A H7635A H7626A H7636A Series 2000 Humidity Temperature Sensors WALL MOUNT MODELS APPLICATION The H7625A H7626A H7635A and H7636A Wall Mount Humidity Temperature Sensors are universal Relative Humidity transmitters that can be powered with either a 18 to 40 Vdc or 24 Vac supply The devices are half wave rectified The transmitter also includes either a 20K ohm NTC thermistor or a 1K platinum PTC compatible with the T775 for optional temperature use The humidity sensors are designed with a field selectable 4 to 20 mA 0 to 5 or 0 to 10 Vdc output signal equivalent to 0 to 100 RH All units are shipped from the factory with a default setting to accept AC power with three wire O to 10 Vdc output INSTALLATION When Installing this Product 1 Read these instructions carefully Failure to follow them could damage the product or cause a hazardous 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 N CAUTION Electrical Shock or Equipment Damage Hazard Can shock individuals or short equipment circuitry Disconnect power supply before installation INSTALLATION INSTRUCTIONS N CAUTION Equipment Damage Hazard Improper wiring can damage the sensor beyon
7. Verify that terminal screws are connected tightly with all wires firmly in place Erratic readings e Verify all wires are terminated properly Ensure that there is no condensation on the board e Verify clean input power In areas of high RF interference or noise shielded cable can be necessary to stabilize signal Inaccurate e f you suspect that the transmitter is not reading within the specified tolerance please contact readings the factory for further assistance 5 62 0327 03 H7625A H7635A H7626A H7636A SERIES 2000 HUMIDITY TEMPERATUHE SENSORS APPENDIX RH Test and Configuration DIP Switch Settings Table 3 IMPORTANT 62 0327 03 Only adjust these switches for troubleshooting or recalibrating the sensor Adjustment is not normally necessary WIRE CONNECTIONS 4 20mA VIN COM VOUT TEMP OUTPUT CALIBRATION AND TEST SWITCHES HUMIDITY SENSOR TEMPERATURE SENSOR Test mode will make the transmitter output a fixed 0 5096 or 100 value The sensor will not affect the transmitter output This is used for troubleshooting or testing only Switches 1 2 and 3 are used for test mode The output will be a fixed 096 50 or 100 signal that corresponds to the output selected with switches 6 7 and 8 Refer to Figure 4 for switch settings TEST SELECTION SWITCHES SW1 0 RH OUTPUT Sw1 9 fuii Lx E E RD RE d l l e l 5 4 5 9 7
8. ce powered by the shared transformer IMPORTANT When using shielded cable ground the shield only at the controller end see Fig 4 Grounding both ends can cause a ground loop mA OUTPUT TRANSDUCER 18 TO 36 Vdc ONLY POWER SUPPLY Vino 4 20 X CONTROLLER METER OR RECORDER E O INPUT SIGNAL o COMMON M22528A Fig 4 Typical wiring diagram for transducer with two wire mA output with external DC power supply 62 0327 03 H7625A H7635A H7626A H7636A SERIES 2000 HUMIDITY TEMPERATUHE SENSORS TR23 Remote Sensor OUTDOOR AIR 1211109 87 65432 SENSOR DISCHARGE AIR SENSOR SUBBASE VOUT COM VIN 0 10 Vdc Vac HUMIDITY SENSOR A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A ENSURE TRANSFORMER IS SIZED TO HANDLE THE LOAD A HEAT COOL SYSTEMS WITH ONE TRANSFORMER REQUIRE THE FACTORY INSTALLED JUMPER USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS A HC AND HP PROVIDE 24 VAC TO THE HUMIDITY SENSOR M31307 Fig 5 Humidity Sensor 0 10 Vdc output wiring with T7350 use with RH Temperature combination T7350 units only W7760A 24 24 24 24 24 24 24 OUT 21 4 VAC VAC VAC VAC VAC VAC COM VDC ICOM COM OUT V 31 32 33 34 35 36 37 38 39 A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A TEMPERATURE SIGNAL CONNECTIONS ARE NOT POLARITY SENSITIVE M18302C
9. d repair Follow the wiring instructions carefully Location Install the device where it cannot be affected by drafts or dead spots behind doors and in corners hot or cold air from ducts radiant heat from sun or appliances concealed pipes and chimneys unheated uncooled areas such as an outside wall behind the device Mounting The housing base mounts over standard 2 in x 4 in single gang junction box or flush to the wall Install the sensor about 5 ft 1 5m above the floor in an area with good air circulation at average humidity and temperature See Fig 1 Ensure the device receives adequate airflow Wire the device See Fig 5 through 4 Ensure proper DIP switch settings Apply power to the unit Snap the cover into position Turn out the 1 16 in allen screws at the bottom of the enclosure until the cover cannot be removed 1 Fig 1 Typical sensor location 62 0327 03 H7625A H7635A H7626A H7636A SERIES 2000 HUMIDITY TEMPERATUHE SENSORS Output Settings The humidity output signal can be adjusted for 0 5Vdc 0 10 Vdc or 4 20 mA using the switch block Switches 6 7 and 8 are used to set the output NOTE Refer Fig 2 for switch settings WIRE CONNECTIONS 4 20mA VIN COM VOUT TEMP OUTPUT CALIBRATION AND TEST SWITCHES HUMIDITY SENSOR SPAN ZERO TEMPERATURE SENSOR 2778 54 78 78 T Table 1 Controller Compatibili
10. ty and Output Settings Required Sensor Output LonSPec Controller Setting Setting W7750 W7760 4 20 mA C7600C W7761 W7750B C 0 10 Vde default H7621 31 W7760C W7753 W7760 T7350 XL50 0 10 default n a XL100 XL500 XF Modules XFL Non Honeywell 0 5 Vdc n a DEFAULT Ore minii UE swt l 0 5VDC OUTPUT swt 1 j Or aaa Ma J 17 7278 4 AG IR 4 20mA OUTPUT Sw1 ON IB CUBO UR OE a a a e a M33151 Fig 2 DIP switch and Wire Connection locations REVERSE ACTING OUTPUT The output can be changed to reverse acting mode The output range stays the same but the corresponding RH value is opposite Direct Acting is the default mode Example Direct Acting DA 0 10V output mode OV 0 RH and 10V 100 RH Reverse Acting RA 0 10V output mode OV 100 and 10V 096 To change the transmitter to reverse acting or back to direct acting set switch 4 ON to put the unit in setup mode After switch 4 is on switch 2 will put the unit in direct reverse acting 62 0327 03 mode When switch 2 is set to ON the output can be used to show if the unit is in direct or reverse acting mode For direct acting the output will be 1V for 0 5V 2V for 0 10V and 7 2mA for 4 20mA For reverse acting the output will be 4V for 0 5 8V for 0 10V and 16 8mA for 4
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