Auxiliary Output Calibration - Honeywell DR 4500A Kit Instruction

Auxiliary Output Calibration

Introduction
Equipment needed
Calibrator connections
Table 4 Set Up Wiring Procedure for Auxiliary Output
Step
1 With the power off, door open, and the chart plate swung out; tag and disconnect field wiring
from the plug in connector J2 on the auxiliary output PCB (see Figure 2).
Observing polarity, connect a milliammeter's leads to the plug for connector J2.
2
3 Close the chart plate; apply power and allow the recorder to warm up 15 minutes before you
calibrate.
Figure 2 Test Equipment Connections for Calibrating Auxiliary Output
J4
Transformer
Connector
Plug J2
(auxiliary output)
Form 44-45-33-52A
Calibrate the recorder so that the auxiliary output provides the proper
amount of current over the desired range.
• The recorder can provide an auxiliary output current range of from
0 to 21 milliamperes and can be calibrated at 4 mA for 0% of output
and 20 mA for 100% of output or any other values between 0 and 21
mA.
You will need a standard shop type milliammeter, with whatever accuracy
is required, capable of measuring 0 to 20 milliamps.
Refer to Figure 2 and wire the recorder according to the procedure given
in Table 4.
Motherboard
Milliammeter
+
-
Auxiliary Output Kit Instruction
Action
Auxiliary Output
Modbus
PCB
Continued on next page
Page 7 of 8