Temperature Controllers

Process Technologies Temperature Controllers

Temperature controllers are used to start and stop heaters or solenoid valves to accurately control the temperature of the solution. Electronic and electro/mechanical controls will normally incorporate relays for the electrical loads required by the heater, relays for Protector II or III or transformers for the electronics.

Electronic Digital Controller offer the highest reliability and accuracy - The following controllers are supplied standard with a 10 foot PTFE covered RTD sensor. Longer length sensors are available. All units are available in a plastic box enclosure with on-off toggle, indicator light. Combination control with 30 to 150 amp relay may include transformer and circuitry for Protector I, II or III. Special configurations are available upon request including J & T thermocouples for DE20 and DQ15D.

DE and DQ controllers are available mounted in a larger plastic box. Click for details.

DE20 - 1/8 DIN, 20 amp -- was known as DME20

Provides digital indication of set point and temperature
Relay for heating with indication light - 20 amp SPDT - 15amp max. with Protector I
Temperature range for liquid: 0-500^oF
Ambient temperature range for controller: 0 to 130^oF
Large LED display .56" high
Accuracy: +/- 1 ^oF
10 foot 1000 OHM RTD PTFE covered sensor

Instruction sheet for DE 20 - PDF file

Face Size 2" high x 4" wide

DQ15D - 1/4 DIN, 15 amp -- was known as DM15D

Provides digital indication of set point and temperature
Dual Set points for heating and cooling
Relays with indication light -
- 15 amp SPDT-NO (heating)
- 10 amp SPDT-NC (cooling)
Standby Temperature Setting
Temperature range: 0-999^oF (was 500^oF)
Ambient temperature range: -20 to 140^oF
Large LED display .56" high
Accuracy: +/- 1 ^oF
10 foot 1000 OHM RTD PTFE covered sensor
User selected lockouts
Optional 4-20mA signal output

Instruction sheet for DQ 15 - PDF file

Face size 4" x 4" - case 3.5" x 3.5"

DSL - 1/16 DIN, 3 amp -- was known as DML

Process controller for temperature control systems and central temperature control panels
Auto-Tune PID or On-Off control
Provides digital indication of set point and temperature
Dual display - 0.3" LED
1.76" overall square face dimension (case)
Ambient temperature range: -20 to 140^oF
Large LED display .56" high
Accuracy: +/- 1 ^oF
User selected lockouts - password
Uses 1000 OHM RTD or thermocouple input
0-10 VDC output, 4-20mA or RS485 optional

Instruction sheet for DSL - PDF file

Dml.jpg (6373 bytes)

case size 1.76" x 1.76" x 4.92" deep

NE20- Electronic Non-Indicating, 20 amp

50^o to 250^oF temperature range standard
50^o to 500^oF and 10 to 120^oC available
Provides greater accuracy end safety
For temperature regulation of heated aqueous solutions
20 amp, 120 through 240 volt single phase, field selectable - 15amp max. with Protector I

FEATURES:

10' PTFE covered, two-wire 1000 ohm platinum RTD sensor (longer lengths available)
Can be field lengthened with ordinary hook up wire.
Single pole,single throw contacts open on temperature rise.
Accuracy: +/- 2^oF full scale
UL and CSA recognized components
Plastic gasket enclosure
Operating ambient temperature of 20^o to 130^oF
Control power on/off switch
Sensor short and break protection
Standard PI terminal blocks included
May be incorporated into combination controls for larger heater loads

Ne20.jpg (17866 bytes)

Scale range: Standard 50 to 250^oF

Mechanical Indication Temperature Controllers
Type C Indicating Control - 15 amp 7 foot PTFE covered copper bulb and capillary - 11 foot and 21 foot are available Diecast aluminum enclosure Accuracy: +/- 1.5% of full span Process range: 50 to 300^oF /10 to 150^oC standard 50 to 500^oF / 10 to 260^oC - optional Ambient: 0 to 150^oF UL and CSA recognized components Available with dual set points Combination Control with 30 to 150 amp relay are available Does not require power to indicate temperature Case size 6.5" x 6.5" x 3.75" deep
Type U Indicating Control - 20 amp (15amp max. with Protector I) 7 foot PTFE covered copper bulb and capillary - 11 foot and 21 foot are available Plastic enclosure Accuracy: +/- 1.5% of full span Process range: 0 to 150^oF /-20 to 120^oC standard 200 to 400^oF / 90 to 200^oC - optional Ambient: 0 to 150^oF UL and CSA recognized components Available with dual set points Combination Control with 30 to 150 amp relay are available Does not require power to indicate temperature Case size 5.75" wide x 6.4" tall x 2.25" deep
NS - Non-Indicating Mechanical, 25 amp (15amp max. with Protector I) 5 foot PTFE covered copper bulb and capillary - 12 foot are available Diecast aluminum enclosure Accuracy: +/- 5% of full span Process range: 30 to 220^oF standard 200 to 500^oF - optional Ambient: 30 to 150^oF UL and CSA recognized components Combination Control with 30 to 150 amp relay are available Case size 3.75"wide x 5.9" tall x 3.63" deep PI terminal block is standard

Combination Controllers - This is the mounting of a controller (above) with a relay to control the function of the heater when the amperage of the heater exceeds the maximum amperage of the controller. These units are available with contact from 30 AMP to 150 AMP. In most cases they will include indication lights and a transformer for the controller. Please contact KTH Sales for sizing and for additional details.

ETI-1 - Electronic Temperature Indicator

8 foot PTFE covered RTD 2000 OHM sensor
Process range: 50 to 250^oF
Large 0.5" LED display
UL recognized components
Accuracy: +/- 2^oF
Case size 3.75"wide x 5.9" tall x 3.63" deep

ETIH-1 - High Temperature Indicator

As above except
10 foot Type J thermocouple
Process range: 0 to 999^oF

Eti-1.jpg (7401 bytes)

Temperature Sensors: All temperature sensors supplied for the above controllers are PTFE covered. RTD 1000 OHM are standard for electronic controllers with 2000 OHM for ETI indicator. Sensors with PTFE covered sleeves are also available for type J, K, R and T thermocouples and 100 OHM RTD. Contact for details.

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