Output Calibration

6.4 Restore Output Factory Calibration Procedure

Introduction

The factory calibration constants for the Current and Auxiliary Outputs are stored in its non-volatile memory. Thus, you can quickly restore the “Factory Calibration” for those outputs by simply changing the CO RANGE or AO RANGE to the other setting and then changing it back to the original type.

Refer to Table 6-5 Restore Factory Calibration for procedure

ATTENTION

A restored factory calibration overwrites any previous field calibration done for the output. Protect your field calibration from accidental overwrites by configuring the appropriate LOCKOUT selection after calibration.

See Section 3 - Configuration for specific instructions to set the lockout.

Table 6-5 Restore Factory Calibration Procedure

Step

Operation

Press

Result

1Set LOCKOUT to

NONE

Setup

until you see:

Upper Display = SET Lower Display = TUNING

Function

Until you see:

Upper Display = one of the following: NONE – all parameters are read/write

CAL – all parameters are read/write except Calibration CONF – configuration parameters are Read Only; no writes permitted

VIEW – Tuning and Setpoint Ramp parameters are read/write. No other parameters can be viewed.

ALL – Tuning and Setpoint Ramp parameters are available for read only. No other parameters can be viewed.

Lower Display = LOCK

 

 

or

2

Enter OUTPUT

 

Setup

 

or OPTIONS

 

 

 

Setup Group

 

Function

 

 

or

3

Scroll through

Function

 

Functions

 

 

Until NONE is in the upper display

until you see:

Upper Display = SET

Lower Display = OUTALG (for the Current Output) - or -

Lower Display = OPTION (for the Auxiliary Output)

until you see:

Upper Display = the current selection

Lower Display = CRANGE (for the Current Output) - or -

Lower Display = ARANGE (for the Auxiliary Output)

to change the range configuration to the other selection

until the lower display rolls through the rest of the functions and returns to:

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UDC2500 Universal Digital Controller Product Manual

4/07

Page 170
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Honeywell UDC2500 manual Restore Output Factory Calibration Procedure, Restore Factory Calibration Procedure