Honeywell UDC 3300 manual Equipment needed, Equipment Needed Type of Input

Equipment needed

Table 7-2 lists the equipment you will need to calibrate the specific types of inputs that are listed in the table. You will need a screwdriver to connect these devices to your controller.

Table 7-2 Equipment Needed

Type of Input

Thermocouple Inputs

(Ice Bath)

Thermocouple Inputs (Precision Resistor)

RTD (Resistance Thermometer

Device)

Milliampere, Millivolt, Volts, and

Radiamatic

Equipment Needed

•A calibrating device with ± 0.02 % accuracy for use as a signal source such as a millivolt source.

•Thermocouple extension wire that corresponds with the type of thermocouple that will be used with the controller input.

•Two insulated copper leads for connecting the thermocouple extension wire from the ice baths to the precision calibrator.

•Two containers of crushed ice.

•A calibrating device with ± 0.02 % accuracy for use as a signal source such as a millivolt source.

•Two insulated copper leads for connecting the calibrator to the controller.

•A precision 500 ohm resistor ± 0.1 % connected across input #1 terminals 25 (R) and 27 (–) or input #2 terminals 22 (R) and 24 (–).

•A decade box, with ± 0.02 % accuracy, capable of providing stepped resistance values over a minimum range of 0 to 1400 ohms with a resolution of 0.1 ohm.

•Three insulated copper leads for connecting the decade box to the controller.

•A calibrating device with ± 0.02 % accuracy for use as a signal source.

•Two insulated copper leads for connecting the calibrator to the controller.

•Place current source at zero before switching ON.

•Do not switch current sources OFF/ON while connected to the UDC 3300 input.

222 UDC 3300 Process Controller Product Manual 4/00