Temperature Controlled
2009
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 50 to 99 Degree All purpose Temperature Controller STC 1000 with Sensor $23.99 Time Remaining: 24d 6h 18m Buy It Now for only: $23.99 |
 Omron E5CS Temperature Controller $65.00 Time Remaining: 1h 36m |
 110V 220V Digital PID Temperature control Controller + Sensor $17.99 Time Remaining: 3h 13m |
 PID Digital Temperature Control Controller Thermocouple 0 to 400 $16.99 Time Remaining: 3d 19h 34m Buy It Now for only: $16.99 |
 RKC CH102 CD101 Input Digital Intelligent Temperature Controller Dual Display $0.09 Time Remaining: 4h 4m |
 New Dual PID Digital Temperature Control Controller Thermocouple REX C100 $15.15 Time Remaining: 15d 14h 32m Buy It Now for only: $15.15 |
 Omron Temperature Controller E5CX $40.00 Time Remaining: 4h 7m |
 Omron Temperature Controller E5CX $40.00 Time Remaining: 4h 7m |
 PID Digital Temperature Control Controller Thermocouple REX C100 $16.99 Time Remaining: 3d 19h 34m Buy It Now for only: $16.99 |
 Omron Temperature Controller E5CX $40.00 Time Remaining: 4h 8m |
 All purpose Temperature Controller STC 1000 With sensor $23.99 Time Remaining: 11d 21h 5m Buy It Now for only: $23.99 |
 STERLCO R 152 F TEMPERATURE CONTROL VALVE 1 1 4 NEW $13.09 (3 Bids) Time Remaining: 5h 26m |
 New TED 2001 220V AC Temperature Controller Control Moudle Analog Display $0.09 Time Remaining: 5h 44m |
 To USA 110V Digital temperature controller + Sensor 2 Relay output thermostat $19.99 Time Remaining: 23d 12h 26m Buy It Now for only: $19.99 |
 Melcor MTCA 6040 Thermoelectric Temperature Controller $200.00 Time Remaining: 6h 11m Buy It Now for only: $250.00 |
 All purpose Temperature Controller STC 1000 Whit sensor $23.99 Time Remaining: 7d 21h 38m Buy It Now for only: $23.99 |
 Johnson Controls A19PRC 1 type Temperature Control w NEMA 4X Enclosure $60.00 Time Remaining: 7h 10m Buy It Now for only: $66.00 |
 Omega iR2C SUPERMETER 2 Color Ratio Fiber Optic Infrared Temperature Controller $499.99 Time Remaining: 8h 26m |
 New Universal Digital PID Temperature Controller SSR Control output 1 alarm $24.99 Time Remaining: 21d 14h 49m Buy It Now for only: $24.99 |
 Digital PID Temperature Controller + K thermocouple probe $17.99 Time Remaining: 8h 31m |
 DC 12V BLUE Digital Thermostat Temperature Regulator Controller Aquarium fish $15.68 Time Remaining: 14d 6h 6m Buy It Now for only: $15.68 |
 Temperature controller Eurotherm 2208e $300.00 Time Remaining: 10h 26m Buy It Now for only: $600.00 |
 Dual Display Universal Digital PID Temperature Controller SNR w K thermocouple $31.99 Time Remaining: 11h 9m |
 Digital PID Temperature Controller + 25A Solid State Relay w 6FT Sensor 20 420 $41.99 Time Remaining: 28d 2h 13m Buy It Now for only: $41.99 |
 AC220V 220V Digital LCD Thermostat Temperature Regulator Controller Aquarium acs $0.99 Time Remaining: 11h 17m |
 20OFF Digital PID Temperature controller + 25A SSR + K thermocouple thermostat $42.00 Time Remaining: 10d 21h 27m Buy It Now for only: $42.00 |
 AC220V 220V Digital LCD Thermostat Temperature Regulator Controller Aquarium acs $0.99 Time Remaining: 11h 19m |
 CAL 9900 Autotune PID Temperature Controller $50.00 Time Remaining: 11h 24m Buy It Now for only: $150.00 |
 Dual Display Digital PID Temperature Controller SSR SCR w K Type Thermocouple $31.99 Time Remaining: 22d 18h 56m Buy It Now for only: $31.99 |
 AC220V 220V Digital LCD Thermostat Temperature Regulator Controller Aquarium acs $0.99 Time Remaining: 11h 44m |
 Dual Digital F C PID Temperature Control Controller SSR 2 Alarms KJESTBR $29.99 Time Remaining: 23d 18h 13m Buy It Now for only: $29.99 |
 DC 24V Digital Electronic Thermostat Temperature Controller Switch 50 to 110c $10.50 (10 Bids) Time Remaining: 11h 45m |
 To USA 110V Digital Temperature Control Controller Whit Sensor $19.99 Time Remaining: 11h 51m |
 Temperature Controller Thermostat Sensor Probe Aquarium Mini Digital STC 1000 $23.99 Time Remaining: 27d 16h 53m Buy It Now for only: $23.99 |
 Kiln Temperature Controller $20.00 Time Remaining: 11h 59m Buy It Now for only: $22.00 |
 20Off New Digital temperature Humidity control controller with sensor $59.99 Time Remaining: 17d 2h Buy It Now for only: $59.99 |
 Aquarium Temperature Controller of Thermoelectric Cooler Controller All purpose $8.95 Time Remaining: 12h 29m |
 110V AC Digital Temperature Control Controller With NTC Sensor 1100W 2 Relay $9.99 Time Remaining: 12h 35m |
 Digital Temperature Control Regulator Controller STC 1000 All purpose 220V AC $21.49 Time Remaining: 3d 19h 18m Buy It Now for only: $21.49 |
 K Sense Thermocouple K sensor for Temperature Controller 2M $0.99 Time Remaining: 12h 41m |
 Dual Digital F C PID Temperature Controller Control TA4 SNR with K thermocouple $31.99 Time Remaining: 6d 2h 28m Buy It Now for only: $31.99 |
 REX C100 Dual Digital F C PID Temperature Controller Control $15.50 Time Remaining: 13h 2m |
 Dual Digital LED F C PID Temperature Controller Furnace Kiln Oven+Thermocouple $5.50 (3 Bids) Time Remaining: 13h 19m |
 Free ship 2PCS PT100 Sensor For temperature controller $9.99 Time Remaining: 23d 12h 5m Buy It Now for only: $9.99 |
 K Type Thermocouple Temperature Controller K sensor $0.99 Time Remaining: 13h 53m |
 PID Temperature Controller + K sensor +25A SSR 20OFF $39.99 Time Remaining: 11d 11h 36m Buy It Now for only: $39.99 |
 Intelligent Temperature Controller thermostat Aquarium 220VAC over heat Alarm $9.99 Time Remaining: 14h 1m |
 25A SOLID STATE RELAY SSR for Temperature Controller $0.99 Time Remaining: 14h 1m |
 New Digital F C PID Temperature Controller Output JSKE TA7 SNR SSR 25DA PT100 $41.99 Time Remaining: 23d 3h 42m Buy It Now for only: $41.99 |
 RKC C700 Digital Temperature Controller Control Dual Display Panel 220V AC New $0.59 Time Remaining: 14h 14m |
 220V Digital LCD Thermostat Temperature Regulator Controller Aquarium Fish Tank $13.98 Time Remaining: 23d 13h 49m Buy It Now for only: $13.98 |
 AC110V Digital LCD Thermostat Temperature Regulator Controller Aquarium acs $0.99 Time Remaining: 14h 34m |
 Remote Temperature Controller + 7 key User definable Remote Control $29.59 Time Remaining: 14h 42m |
 Digital PID Temperature controller + 25A SSR + K thermocouple probe $10.00 Time Remaining: 23d 2h 18m Buy It Now for only: $10.00 |
 AC 110V Digital Electronic Thermostat Temperature Controller Switch 50 to 110c $6.50 (11 Bids) Time Remaining: 14h 47m |
 1pcs SOLID STATE RELAY SSR Temperature Controller DC AC SSR 25DA 25A 3 32VDC $4.99 Time Remaining: 24d 11h 40m Buy It Now for only: $4.99 |
 New XMTG 1001 220V AC Digital Temperature Sensor Controller Climate Control $0.01 Time Remaining: 14h 47m |
 AC 220V Digital Thermostat Temperature Controller Heating Cooling 50c to 110c $15.50 (12 Bids) Time Remaining: 14h 50m |
 Thermocouple Temperature Control Sensor Probe PT100 19M cable $4.99 Time Remaining: 1d 17h 57m Buy It Now for only: $4.99 |
 Digital Temperature Controller Electronic Thermostat Switch DC 24V for Incubator $13.17 (17 Bids) Time Remaining: 14h 50m |
 DWYER LOVE CONTROLS 16133 TEMPERATURE CONTROL IP99466 W03N $200.00 Time Remaining: 29d 7h 14m Buy It Now for only: $200.00 |
 1 NEW OMRON E5CN Q2MP 500 Temperature Controller 24V $89.98 Time Remaining: 14h 57m Buy It Now for only: $99.98 |
 SQUARE D DIGITAL TEMPERATURE CONTROLLER MODEL 98 $1,999.00 Time Remaining: 14h 59m Buy It Now for only: $3,000.00 |
 New 2PCS PT100 Sensor For temperature controller free shipping $7.99 Time Remaining: 11d 20h 34m Buy It Now for only: $7.99 |
 CH402 RKC Digital Intelligent Temperature Controller PID Control Dual Display $0.01 Time Remaining: 15h 24m |
 220V All purpose Temperature Controller STC 1000 $14.99 Time Remaining: 26d 20h 52m Buy It Now for only: $14.99 |
 New XMTA 2001 220V AC Digital Temperature Controller Sensor Climate Control $0.99 Time Remaining: 15h 51m |
 New OMRON E5EN 220V AC OMORN Digital Temperature Controller Climate Control $0.01 Time Remaining: 16h 20m |
 PT100 Probe Temperature Control Sensor Thermocouple 19M Black $4.99 Time Remaining: 20d 11h 39m Buy It Now for only: $4.99 |
 All purpose 110V Digital temperature controller + NTC sensor $9.99 Time Remaining: 16h 22m |
 Dual Digital F C PID Temperature Controller Control NEW $16.99 Time Remaining: 3d 5h 56m Buy It Now for only: $16.99 |
 2 Meter K type Thermocouple temperature controller K sensor $2.20 (4 Bids) Time Remaining: 22h 17m |
 WATLOW 935A1CC0 000R TEMPERATURE CONTROLLER TYPE 4X ENCLOSURE USED $20.50 (2 Bids) Time Remaining: 1d 1h 13m |
 SSR 25 DA Solid State Relay For PID Temperature Controller 25A Output 24V 380V $4.56 Time Remaining: 15d 18h 14m Buy It Now for only: $4.56 |
 Digital PID Temperature Controller with K type thermocouple probe $17.99 Time Remaining: 1d 3h 2m |
 OMRON E5CSZ Q1T Digital Temperature Controller +PT100 +25A SSR 20OFF $59.00 Time Remaining: 26d 20h 37m Buy It Now for only: $59.00 |
 K K type Thermocouple temperature controller probe $0.99 (1 Bid) Time Remaining: 1d 3h 2m |
 UNITED ELECTRIC CONTROLS F302 TEMPERATURE CONTROLLER 0 250F RANGE 15A AMP 48139 $9.51 Time Remaining: 1d 3h 19m |
 All purpose Temperature Controller Thermostat STC 1000 With sensor 220V $23.99 Time Remaining: 18h 40m Buy It Now for only: $23.99 |
 Love Controls Model 26133 926 934 Temperature Process Controller New $119.55 Time Remaining: 1d 3h 32m |
 CAL CONTROLS 3200 SERIES TEMPERATURE CONTROLLER New in Box $135.00 Time Remaining: 26d 9h 19m Buy It Now for only: $135.00 |
 PID Temperature Controller AUTONICS TK4W 24CN DC 4 20mA Current SSR 2Alarm $69.99 Time Remaining: 1d 3h 44m |
 6FT RTD Pt100ohm Thermocouple Temperature Controller Probe Sensor Cable w Tube $11.99 Time Remaining: 1d 4h 9m |
 DC 12V 18V 24V Digital PID temperature control controller 1 Relay + 12VDCSSR $32.00 Time Remaining: 22d 18h 1m Buy It Now for only: $32.00 |
 AC 110V 250V temperature switch NONC 35 celsius controller For PC Refrigerators $0.01 Time Remaining: 1d 4h 51m |
 100 240V Digital PID Temperature controller +25A SSR + K thermocouple thermostat $29.99 Time Remaining: 12d 19h 33m Buy It Now for only: $29.99 |
 New Autonics T3H B3RK4C 0 399C 110 220V Digital Temperature Controller $49.99 Time Remaining: 1d 6h 1m |
 Chromalox 1603 11030 Temperature Control Output Relay $39.00 Time Remaining: 1d 6h 23m |
 6FT RTD Pt100ohm Thermocouple Temperature Controller Probe Sensor Cable w Tube $11.99 Time Remaining: 15d 19h 13m Buy It Now for only: $11.99 |
 Single Stage Digital Temperature Control 24v SP Johnson Controls A419GBF 1C $5.35 (3 Bids) Time Remaining: 1d 9h 30m |
 50x KSD 9700 Bimetal Temperature Control Switch NC 70 $22.60 Time Remaining: 12d 14h 43m Buy It Now for only: $22.60 |
 Dwyer Temperature Controller Love 2500 PID w Alarm $19.99 Time Remaining: 1d 10h 18m Buy It Now for only: $99.00 |
 M90421 Watlow Series 988 Temperature Controller w Assembly Heating Block $49.99 Time Remaining: 1d 10h 50m |
 Love Controls Self Tune Plus Temperature Control 16010 M23690E36H w SocketUsed $39.95 Time Remaining: 29d 3h 32m Buy It Now for only: $39.95 |
 M90443 Watlow Series 988 Temperature Controller w Mainframe Assembly $49.99 Time Remaining: 1d 10h 50m |
 USA AC 110V All purpose STC 1000 Digital Temperature Controller With sensor NEW $23.99 Time Remaining: 23d 10h 16m Buy It Now for only: $23.99 |
 PID Digital Temperature Controller and probe K sensor $17.99 Time Remaining: 1d 10h 52m |
 Digital PID Temperature Controller with K type K thermocouple prober $17.99 Time Remaining: 1d 10h 52m |
 Dual PID Digital Temperature Control Controller Thermocouple REX C100 $15.29 Time Remaining: 17d 20h 39m Buy It Now for only: $15.29 |
 AC220V 220V Digital LCD Thermostat Temperature Regulator Controller Aquarium acs $0.99 Time Remaining: 1d 11h 20m |
Temperature Controlled
Heat pump setback temperature control with cold weather override
Multistage thermostats have been used for a long time to control stages of heating wherein a refrigeration heat pump is used for one stage and auxiliary electrical strip heat is used for other stages. Also there has been a continual need forprotection for refrigeration apparatus when exposed to cold temperatures such as electrical heaters for the outdoor compressor unit for maintaining the unit warm during the inoperative period. When heat pump apparatus is used for heating as the firststage in a multistage control system, during normal temperature control at a high heating load with low outdoor temperatures, the compressor is almost continually operated.
When a multistage thermostat control system is used with a night setback thermostat, the controlled temperature desired in the space is setback to some lower level during a selected period of time. During a portion of the setback time, there maybe no call for heat and thus the refrigeration heat pump can remain idle for an extended period of time before a call for heat brings it into operation. During low outdoor temperatures, the starting of the heat pump after an extended inoperative periodcan result in damage. Additionally, if the space temperature is allowed to drop for a night setback during a heavy heating load with a low outdoor temperature, the pickup load to bring the temperature back to normal is extremely great. The controlsystem may by necessity need to bring on the more expensive electrical strip heat for a pickup operation.
The present invention provides for a means responsive to outdoor temperature to maintain the refrigeration heat pump in operation when the outdoor temperature drops below some predetermined value during the setback time period. During lightloads even though there is a low outdoor temperature, the continuously energized heat pump may result in an increased space temperature; therefore, the invention contemplates the use of a temperature responsive element mounted in the space to overridethe continuous energization of the heat pump should the space temperature exceed some predetermined value during the setback period.
A multistage timer control setback thermostat control system maintaining a normal temperature in a space and during selected time periods a reduced temperature wherein a first stage is a refrigeration heat pump, the operation of which is affected by outdoor temperature, and a second stage is an auxiliary electrical heating source. An outdoor temperature responsive means is connected in the control system to maintain the heat pump energized during the space temperature setback period if the outdoor temperature is below some predetermined value. Additionally, the indoor thermostat has a high limit temperature responsive means for terminating the operation of the heat pump should the space temperature exceed some predetermined value during the space temperature setback period.
As the outdoor temperature drops below the 35° F. temperature, thermostat closes to maintain the heat pump continuously energized during the setback period of time. If there is sufficient heat output from the heat pump and theinternal heat in the building which might come about by lights or cooking and people to exceed the normal day setpoint of the temperature, limiting thermostat opens to turn off the heat pump. With such an operation of the heat pump continuouslyduring the cold weather below 35°F., upon morning pickup the amount of heat requirement from the auxiliary heat is minimized to increase the efficiency of the heating system.
Many compressor manufacturers also have been concerned with extended off periods of the compressor during cold weather which can lead to premature failure of the heat pump. The continuous energization of the heat pump by thermostat at lowoutdoor temperatures with the exception when the high limit thermostat might open not only increases the efficiency of the system but extends the life of the heat pump.
The refrigeration heat pump has a compressor and an indoor and outdoor heat exchanger wherein the efficiency decreases with the lowering of the outdoor temperature and its operating life is extended when the compressor is not allowed to stop whenthe outdoor temperature is below said first predetermined value, and the auxiliary heating heat source is electrical heating apparatus, which when used during pickup periods of operation after a setback time period, when the space temperature is at the setback temperature, to restore the space temperature to thenormal temperature, is more expensive to operate than a refrigeration heat pump.
About the Author
Dayrelax began to design and manufacture heat pump air conditioner,With many obvious advantages of air source heat pump as attraction and many years of heating and cooling system technology as support.
temperature controlled water valve??
basically im trying to cool my house by putting sprinklers on the roof but i would like for it to be temperature controlled. i.e. i hook up garden hose to "temperature controlled water valve" then to sprinklers when it reaches a certain temp valve opens, when it cools down to certain temp valve closes. or at least point me into the right direction.
You need a thermostat, but be prepared to shop through industrial supply houses (wholesalers) and then putting together a system on your own.
http://www.grainger.com/Grainger/wwg/start.shtml
Where do you live? Is there adequate water for you to use on your roof? I like the idea of using evaporators to cool, but if you live in South Florida, we are in drought conditions and cannot use water that way. My friend lives in the Springs Region of North Florida, though, and he uses spring water on his property, which runs off anyhow to cool his workshop.
Temperature Controlled DC motor using HCS12
