1/16 DIN Digital Temperature Controller From Eagle Controls
Self Tune 1/16 DIN Digital Temperature Controller - MODEL 1048
Model 1048 is a microprocessor based self tuning PID Temperature Controller housed in a 1/16 DIN case. It incorporates a dual LED display. Set point (green LED's 7mm high) and actual process value (red LEDís 10mm high).
The main output (SP1) can be relay 10A or 0-12 Vdc SSR trigger. It has a second output which is a 3A relay, which may be used as a 6 recipe alarm contact or an independent second set point (SP2).
All parameters are accessed via the front key pad which is sealed to IP65/NEMA 4. Supply voltage is 85-265Vac or 24Vac/dc.
The 1048 is programmable for 5 different Thermocouple inputs and 2 or 3 wire PT100/RTD.
Self Tune Operation
The 1048 can be used as a simple ON/OFF controller or it can very simply be programmed to automatically calculate the PID values of the process. Self tune mode is selected via the front key pad and once initiated will calculate the optimum P, I and D values for the process. The PID values are stored in the E squared PROM and may be read back from the programme at any time.
The 1048 is fitted with a scale limit facility, which means safe operating limits can be set for each process across the range -200 to +1600 C / -328 to +2800 F. For example 0-400 C/F the operator cannot exceed 400 or go below 0.
Alarm or Second Set Point (SP2)
The 1048 is fitted with a second output (SP2) that can be programmed to operate as an alarm contact, this acts as a deviation to the main set point (SP1). When the alarm functions is set, any change in the SP1 value will be equalled by SP2, the alarm can be a High or Low of SP1 or Out Of Limit i.e. an equal trip point either side of SP1. The SP2 output relay can also be programmed to energise or de-energise in the alarm condition.
Alternatively the SP2 feature can be programmed to operate as an independent second set point. This means that any change to SP1 will not have any effect on SP2. C/F Selection The 1048 is programmable to display in degrees C or F.
This feature limits the operation of the Integral action (I) of the PID parameters, preventing overshoot at set point from start up. It limits the speed at which the instrument allows the process to climb to set point and is only operational when full PID control is being used. It has no effect in simple ON/OFF control mode.
Data Retention Lock
All data calculated automatically by the controller or entered manually and which therefore is stored in the E squared PROM, can be protected from unauthorised access and tampering. The programmable options available are, all data protected, no data protected, set point only adjustable.
Maximum Temperature Ranges
Panel Cut-out: 44mm x 44mm