Honeywell UDC2800 User Manual

234
Milliamperes
Table 6-6: Set Up Wiring Procedure for Milliampere Inputs
Step Action
1 Connect the copper leads from the calibrator to the Input #1 terminals as
shown in Figure "Wiring Connections for 0 to 20 mA or 4 to 20 mA Inputs".
2 Place current source at zero before switching on.
3 Do not switch current source ON/OFF while connected to the instrument.
Figure 6-5: Wiring Connections for 0 to 20 mA or 4 to 20 mA Inputs
Input 1 or 2 Calibration Procedure
Preliminary Steps
n
Apply power and allow the controller to warm up for 30 minutes
before you calibrate.
n
Before beginning the procedure, see Input 1 or 2 Set Up Wiring
for more information.
n
Make sure you have set Lock to NONE in the Security set up
group. See Security Set Up Group for more information.
n
See the table Voltage, Milliamp and Resistance Equivalents for
Input Range Values for Voltage vs. Resistance equivalents or 0 %
and 100 % range values.
CAUTION: For linear inputs, avoid step changes in inputs. Vary
smoothly from initial value to final 100 % value.
Chapter 6 - Input Calibration

Honeywell UDC2800 Specifications

General

Control Modes	PID, ON/OFF, Manual
Mounting	Panel Mount
Display	Dual 4-digit LED
Input Types	Thermocouple, RTD, mA, mV, V
Output Types	Relay
Power Supply	100-240 VAC, 50/60 Hz
Communication	RS-485 Modbus RTU
Enclosure Rating	NEMA 4X