1/4 DIN TEMPERATURE CONTROLLERS BY HARREL

Harrel, the Hi-Tech Extrusion Systems People

1/4 DIN Temperature Controllers for really precise control of temperature.

Multizone temperature controllers, such as the Harrel CP-641, CP-642, CP-643, and CP-873 DIGIPANEL controllers, in general offer a more economical and versatile solution than discrete controllers for the control of temperature on complex machines, such as extruders and extruder accessories. The CP-641, for example, offers 8 heating and cooling and 8 heating only zones, all with full PID control, for less than $200 per zone. Click on multizone controllers to check these out.

For many retrofit applications, or where operators are accustomed to discrete controllers, however, the Harrel TC-800 series 1/4 DIN plug-in temperature controllers are an excellent solution.

In 1967, Harrel, Incorporated introduced to the plastics industry the very first three mode (PID) temperature controllers suitable for such applications as deep well sensing in extruder barrels. These pioneering controllers have been continually improved since then by the addition of such functions as:

DUOSENSE^(R): The cascade deep-and-shallow well temperature control system for barrel control, which Harrel patented in the 80's. Overall control is from a deep well, down near the plastic, where it counts. Fast response to external environmental influences, such as line voltage, ambient temperature, and cooling water temperatures, come from the cascaded shallow well control loop.
A SPECIAL, PATENTED, RATE CONTROL LOOP, which greatly reduces temperature overshoots.
DEVIATION ALARMS -- to monitor performance continuously.
OPEN AND SHORTED SENSOR PROTECTION

The TC-810 (Heating only) and TC-812 (Heating and Cooling) Single Zone Controller

HEATING ONLY, OR HEATING AND COOLING.
FULL 3-MODE (PID) CONTROL, with separate trim adjustments on the heating and the cooling sides, for best performance. Using the same trims on both sides inevitably involves a compromise in performance.
Patented Harrel rate control system greatly reduces temperature overshoots.
PLUG-IN CONSTRUCTION for easy maintenance.
RTD SENSING for best performance.
STANDARD OUTPUT is an open collector d-c output, capable of generating a 10 volt d-c time proportional control signal across a 1000 ohm resistance. Plugging a PM-102 power module into the controller case converts the output to 1 ampere at 115 volts, capable of operating up to a size 1 external contactor, a solenoid valve, or a mercury relay. Using the companion PL-100 or PL-200 panel mounted plug in power modules gives up to 30 amperes at either 115 or 230 volts.
COMPUTER COMPATIBLE.

Prices:
TC-810 Single Zone, Heating Only Temperature Controller for standard 100 ohm platinum RTD Sensors: $649.00
TC-812 Single Zone, Heating and Cooling Temperature Controller for 100 ohm platinum RTD Sensors: $679.00
PM-102 Solid State Power module -- plugs into controller case. Output 1 ampere at 115 volts. $ 39.00

THE TC-825 (HEATING ONLY) AND TC-827 (HEATING AND COOLING) DUOSENSE TEMPERATURE CONTROLLER

Harrel developed and patented the first deep-and-shallow well cascade temperature controller for use on extruder barrel temperature control.
- Overall control is from a deep well, down near the plastic, where it counts!
- Second loop operates from shallow well and gives fast response to external changes -- line voltage, ambient temperature, cooling water temperature (if used), etc.
Full 3-mode (PID) control, with separate trim adjustments for heating and for cooling sides for best performance. Using the same trim values for both heating and cooling requires compromises in performance.
Patented rate control system greatly reduces temperature overshoots.
RTD sensing for best performance.
STANDARD OUTPUT is an open collector time proportioning d-c output, capable of generating a 10 volt d-c control signal across a 1000 ohm resistance. Plugging a PM-102 solid state power module into the controller case, converts the output to a fully isolated, 1 ampere solid state output, capable of operating up to a size 1 contactor, a solenoid valve, or a mercury relay. Alternatively, the PL series plug-in power modules make a very elegant and convenient panel layout for higher powers.
Computer compatible.

Price:<>
TC-825 DUOSENSE Temperature controller for heating only. Uses 100 ohm platinum temperature sensors: $718.00.
TC-827 DUOSENSE Temperature controller for heating and cooling. Uses 100 ohm RTD sensor. $733.00.
PM-102 Plug in power module. Converts controller output to 1 ampere at 115 volts $39.00.

TC-820 DUAL ZONE CONTROLLER

Same as TC-810 controller above except controls two heating-only zones.
Ideal for general purpose use, or for downstream applications on extrusion lines, for such applications as die temperature control, flanges, adapters, melt pumps, etc.
Both zones are full 3 mode (PID) control, with separate trim adjustments for each zone.
Patented Harrel rate control system greatly reduces temperature overshoots.
Plug-in construction for easy maintenance.
RTD sensing recommended for best accuracy. Thermocouple sensing also available.
STANDARD OUTUT from each of the two channels is an open collector time proportioning d-c output, capable of generating a 10 volt d-c control signal across a 100 ohm resistance. Plugging a PM-102 solid state power module into the controller case, converts the output to a fully isolated, 1 ampere solid state output, capable of operating up to a size 1 contactor, a solenoid valve, or a mercury relay. For higher power outputs, two PL series plug-in power modules make a very elegant and convenient panel. Alternatively, standard cabinet mounted PMseries solid state power modules may be used for power outputs up to 100 Kw.
Computer compatible.

Price:
TC-820 Dual Zone Temperature Controller for 100 ohm platinum RTD's: $789.00
PM-102 plug-in solid state power module converts the output to 1 ampere at 115 volts a-c. $39.00ea

PL-100/PL-200 SERIES PLUG-IN SOLID STATE POWER MODULES

FRONT PANEL MOUNT for maximum operator convenience.
1/4 DIN; Plug-in stype matches 1/4 DIN Controllers above.
RFI-FREE, (zero crossing) avoids interference on power lines.
ENTIRELY SOLID STATE -- No moving parts to wear out
110 to 240 volt, 50/60 Hz, to 30 Amperes
THREE PHASE "Y" handled by 3 single units; Delta by two.
CURRENT-LIMITING, fast blow fuses included.
LINE TRANSIENT PROTECTION included.
SAFETY! When module is unplugged, both sides of line are opened. Safety loop plus padlock provides safety lock-out.

**PRICES**
Amps	Volts	Model	Price	Volts	Model	Price
10	115	PL-110	$470.00	220	PL-210	$495.00
20	115	PL-120	$480.00	220	PL-220	$510.00
30	115	PL-130	$490.00	220	PL-230	$525.00

For full details fill out inquiry form or call Harrel at (203) 866-2573.

ORDER TEMPERATURE CONTROLLERS, SENSORS, AND POWER MODULES ON LINE

To order an item, fill in the form below an click on "submit". Harrel will enter your order and send you an Email or FAX acknowledgement stating engineering data and credit information required, if any. Enter power modules and options as separate items 2, 3,4, etc. Payment may be by credit card, if desired.