Honeywell DR4300 Running the Optional Step Test, Procedure for Running the Step Test, Graphic

Configuration, Startup, and Operation of Recorder without Display

3.3.3 Running the Optional Step Test

Introduction

You can test the recorder’s mechanical operation by running a “step test”. This test is initiated by setting switches as described in Table 3-4.

This test prints a step pattern, which is independent of any chart settings, with horizontal lines drawn by both pens at each 10% increment on the chart (see Figure 3-4).

The test will run for one complete revolution of the chart before it returns to normal operation. The chart revolution for the test takes approximately three minutes, regardless of configured chart speed.

WARNING

SHOCK HAZARD

When the unit is powered a potentially lethal shock hazard exists at the AC line connections at TB1 on each printed circuit assembly (behing the chart plate). Make sure the unit power is disconnected before starting the procedure. More than one switch may be required to de-energize the recorder.

Failure to observe this precaution can result in exposure to a potentially lethal shock hazard.

Procedure

Use the procedure in Table 3-4to run the step test.

Table 3-4 Procedure for Running the Step Test

Step Action/Result

1Turn off the power to the recorder.

2Make sure the cap is removed from the tip of each pen and the chart is installed.

3Loosen captive screw and swing out the chart plate.

4Note the position of all eight switches on SW1 on the printed circuit assembly (PCA) for each pen.

5Being careful of the shock hazard at TB1, set switches 1 and 2 in SW1 in the OFF position on each pen’s PCA. All other SW1 switches should be ON (toward the edge of the board). This is configuration #252 in Table 3-2.

6Being careful of the shock hazard at TB1, place run switch SW5 to the setup position (toward the top of the board) on each pen’s PCA.

7Apply power to the recorder.

8The recorder will begin the test. The duration of the test is approximately 3 minutes. (When the test has been completed the pens will move away from the test position, but the recorder cannot return to normal operation until the switches are returned to their correct non-test settings.)

Graphic

See Figure 3-1.

ON	8
	7
	6
	5
	4
	3
	2
	1

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