Honeywell UDC 3300 manual Specifications, Design, Input Accuracy, Stray Rejection Common Mode

Pre-installation information

CE conformity special conditions (Europe)

If the controller has not been removed from its shipping carton, inspect the carton for damage and remove the controller. Inspect the unit for any obvious shipping damage and report any damage due to transit to the carrier.

Make sure that the carton with the controller includes

•a bag containing mounting hardware and

•a bag containing input resistors.

Check that the model number shown on the inside of the case agrees with what you have ordered.

Shielded twisted pair cables are required for all Analog I/O, Process Variable, RTD, Thermocouple, dc millivolt, low level signal, 4-20 mA, Digital I/O, and computer interface circuits. Refer to the Severe Electrical Noise Environments document (51-52-05-01) for additional information.

Specifications	We recommend that you review the specifications and adhere to the
	operating limits listed in Table 2-1 when you install your controller.
	Table 2-1	Specifications
Design

Input Accuracy

±0.20 % of span typical (± 1 digit for display) Field calibratable to ± 0.05 % of span typical 15 bit resolution typical

Sampling Rate

Temperature Stability

Input Signal Failure Protection

Input Impedance

Maximum Lead Wire Resistance

Inputs sampled six times a second

± 0.01 % of Full Scale/°C change typical

Thermocouple Inputs: Upscale or downscale burnout

Burnout Current: 0.13 microamps

Failsafe Output Level: Configurable 0-100 %

4-20 Milliampere Input: 250 ohms

0-10 Volt Input: 200K ohms

All Other: 10 megohms

Thermocouples: 100 ohms/leg

100, 200, and 500 RTD: 100 ohms/leg

100 ohm Low RTD: 10 ohms/leg

Stray Rejection

Common Mode

AC (50 or 60 Hz): 120 dB (with maximum source impedance of 100 ohms) or ± 1 LSB (least significant bit) whichever is greater with line voltage applied.

DC: 120 dB (with maximum source impedance of 100 ohms) or a ±1 LSB whichever is greater with 120 Vdc applied.

DC (to 1 KHz): 80 dB (with maximum source of impedance of 100 ohms) or ±1 LSB whichever is greater with 50 Vac applied.

Normal Mode

AC (50 or 60 Hz): 60 dB (with 100 % span peak-to-peak maximum)

8 UDC 3300 Controller Product Manual 4/00