NORMAL RECORDER OPERATION

When the recorder is initially powered-on, the pen(s) will reset by moving to the left to the "home" position. On a single pen recorder, the pen moves onto the pen lift ramp (if available) or near the edge of the chart paper. On a two-pen recorder, the pens will move one-at-a-time to the edge of the chart paper.

Once the pen(s) has reset, it will move towards the graduations on the chart and should pause briefly on the outermost graduation of the chart. If it does not pause at this position, a mechanical pen adjustment can be made (refer to the section PEN ARM CALIBRATION). If the recorder has the optional alarm relay contacts installed, the pen will travel to each alarm set-point and pause to allow for adjustment. Finally, the pen will travel to show the value being measured and recorded.

 

GREEN LED STATUS INDICATOR

The green LED light is used to indicate the status of the power to the recorder.

The LED will be on steady when both the main AC and battery power to the recorder is normal or the pen(s) is resting off-scale during a CHANGE CHART operation.

The LED will flash when either the main AC power fails or the battery becomes weak and needs to be replaced.

The LED is also used to indicate the current input "range" that is selected for operation. For information on selecting the input range, refer to the section CHART "RANGE" SELECTION.

 

CHANGING THE CHART PAPER

Warning: Do not lift the pen arm(s) in order to slide a new chart under the pens. This will remove the bend in the arm and will no longer provide enough downward pressure for the pen(s) to draw a legible mark.

Press and hold the "change chart" button (#3) for approximately one (1) second until the pen begins to move to the left and then release the button (refer to Figure 4). Wait until the pen has moved onto the pen lift ramp (if available) or near the edge of the chart paper and stops. To remove the chart paper, unscrew (counter-clockwise) the chart "hub" knob at the center of the chart. Remove the old chart paper and position the new one so that the correct time line coincides with the time line groove on the chart plate. Refer to Figure 6 for the location of the time line groove.

Re-attach the chart "hub" knob and screw securely (by hand) against the chart. Note: Over tightening the chart "hub" knob can damage the gears in the chart motor gearbox assembly. Press and hold the "change chart" button (#3) again for approximately one (1) second until the pen begins to move back onto the chart and then release the button. Check to make sure that the pen is marking on the chart paper. If it is not, then carefully adjust the pen arm to establish contact with the paper.

 

MARKING SYSTEMS:
MARK-A-MATIC II INKING SYSTEM

This type of pen consists of a self contained ink reservoir with a porous plastic stylus which is snapped around the outer edge of the metal pen arm.

A pen cap is provided to extend the life of the ink pen during shipping or when the recording unit is not in service. The pen cap must be removed before the recording unit is powered-on. To remove the pen cap, gently lift the pen arm away from the chart paper. Remove the black plastic pen cap to expose the fiber tip of the ink pen and gently place the pen back onto the chart paper. Do not let the pen arm "snap" back onto the chart paper. This will flatten the fiber tip of the pen and will no longer give you a fine line marking on the chart paper. Place the pen cap in a safe place for future use.

If the stylus does not touch the chart, adjustment can be made by slightly bending the metal pen arm in the center towards the chart paper. Do not use more


5

R70-32
REV(07/13) E

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