Red-lion PAX2D User Manual download pdf (Page 30)

faCTOry serviCe OperaTiOns (FACtrY)

FACTORY SERVICE CODE

0-250

Enter the Service Code for the desired operation.

RESTORE FACTORY DEFAULTS

Use the ! and @ keys to display COdE 66 and press P. The meter will flash

rESEt and then return to COdE 50. Press the P key to return to Display Mode.

This will overwrite all user settings with the factory settings. The only exception

is the User Mnemonics which retain their programmed values (see Code 69).

RESTORE FACTORY DEFAULTS (w/Units Mnemonics)

Same as Code 66, except the User Mnemonics are also returned to the factory

default settings (blank).

MODEL AND CODE VERSION

The meter will briefly display the model (P2d) on Line 1, and the current

firmware version (UEr x.xx) on Line 2, and then return to COdE 50.

INPUT A AND B LOGIC SELECTION

The Count Inputs A and B are factory configured for falling edge triggered

(active low) operation in single edge count modes. The Counter Operating Mode

descriptions in the Input programming section reflect this logic. If an application

is better suited to use rising edge triggered (active high) operation, the Input

Logic for Input A and/or Input B can be changed by entering Code 55.

LO-ACt HI-ACt

Selecting HI-ACt sets the Input A logic to rising edge triggered (active high)

operation. Be advised that all references to Input A falling edge and Input A

rising edge will be reversed for the Counter Operating Mode descriptions.

LO-ACt HI-ACt

Selecting HI-ACt sets the Input B logic to rising edge triggered (active high)

operation. Be advised that all references to Input B falling edge and Input B

rising edge will be reversed for the Counter Operating Mode descriptions.

METER CALIBRATION

NO RAtE AnLOut

Enter Code 48 and choose Rate or Analog Output calibration.

The only items in the PAX2D meter that can be calibrated are the Rate

Indicator accuracy and the Analog Output. The Rate Indicator is scaled in the

Rate Input Parameter programming section. The Analog Output signal is scaled

in the Analog Output Parameter section. If the Rate display or the Analog Output

appears to be indicating incorrectly or inaccurately, refer to the Troubleshooting

section to make sure the meter is properly scaled for the application.

If Rate accuracy or Analog Output recalibration is required (generally every

2 years), it should be performed by qualified technicians using appropriate

equipment. Calibration does not change any user programmed parameters.

Note: Allow a 30 minute warm-up period before staring calibration.

Rate Accuracy Calibration

-0.0100 to 0.0100 percent

Rate Indicator calibration is done by adjusting the Rate Accuracy Offset

value. This value provides a Rate calculation adjustment factor expressed in

percent of the display reading. An adjustment range of ± 0.01% is provided,

which equals ± 1 count for a display reading of 10,000.

The initial offset value is set during factory test. To calibrate, connect a

precision signal generator with an accuracy of 0.005% or better to Input A on the

PAX2D. (Refer to the Rate Input Parameter programming section for Rate setup

details.) Using the Rate A Decimal Point position and Scaling Display

parameters, program the meter to read the input frequency with maximum

display resolution (i.e. 6-digit display reading). Compare the Rate display to the

signal generator output frequency. Adjust the Rate Accuracy Offset value higher

(for low Display reading) or lower (for high Display Reading) until the Rate

display matches the signal generator.

Analog Output Card Calibration

Before starting, verify that a precision meter with an accuracy of 0.05% or

better (voltmeter for voltage output and/or current meter for current output) is

connected and ready. Using the chart below, step through the five selections to

be calibrated. At each prompt, use the PAX2D ! and @ keys to adjust the

output so that the external meter display matches the selection being calibrated.

When the external reading matches, or if the range is not being calibrated, press

the P key to advance to the next range. When all the desired ranges have been

calibrated, exit programming mode and remove the external meters.

DISPLAY EXTERNAL METER ACTION

0.000A

0.00 mA

Adjust if necessary, press P

0.004A

4.00 mA

Adjust if necessary, press P

0.020A

20.00 mA

Adjust if necessary, press P

0.0v

0.00 V

Adjust if necessary, press P

10.0v

10.00 V

Adjust if necessary, press P

COdE

FCS

COdE

FCS

rESEt

COdE

FCS

COdE

FCS

rESEt

COdE

FCS

COdE

FCS

P2d

V Er x.xx

FCS

COdE

FCS

COdE

FCS

INP A

LO-ACt

LOG

INP b

LO-ACt

LOG

COdE

FCS

CAL

FCS

OFFSEt

0.0080

Pct

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Red-lion PAX2D User Manual Page 30

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