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Diagnostics and Messages

192 UDA2182 Universal Dual Analyzer Product Manual January 2009

12.2 System Status Messages

Overview

The following table lists all the error messages that can appear for Measurement errors,

Input errors, Output errors, and Alarm Conditions.

Table 12-1 Status Messages

Status Message Definition

HOLD ACTIVE Analog Inputs (PVs) are held at their last active levels by

pressing the “HOLD” button, until cancelled by pressing the

“HOLD” button again.

n = 1 or 2 Measurement Errors

TEMP n UNDERRANGE

Measured temperature

is less than the minimum range value

according to measurement type, where:

n is 1 (Input 1) or 2

(Input 2).

TEMP n OVERRANGE Measured temperature is greater than the maximum range

value according to measurement type, where:

n is 1 (Input 1)

or 2 (Input 2).

PV n UNDERRANGE Measured PV is less than the minimum range value according

to measurement type, where

n is 1 (Input 1) or 2 (Input 2).

PV n OVERRANGE Measured PV is greater than the maximum range value

according to measurement type, where

n is 1 (Input 1) or 2

(Input 2).

n = 1 or 2 Input Errors – Output(s), for which Input is source, will go to failsafe level

PROBE TEMP n INPUT

FAULT

Probe temperature sensor at Input

n is defective.

PROBE PV n INPUT FAULT

Probe PV sensor at Input

n is defective.

PROBE n INPUT OUT OF

SOLUTION

Probe at Input n is out of solution.

TEMP n INPUT OPEN

Probe temperature sensor at Input

n is not connected. Check

Wiring.

PV n INPUT OPEN

Probe PV sensor at Input

n is not connected. Check Wiring.

INPUT BOARD n FAULT An input board disconnect while powered results in an input

fault condition and this status message. The PV value is the

failsafe parameter value and the temperature is at the lower

limit of the input board’s temperature range.

Re-insert the input board, or cycle the unit’s power if the input

board is no longer needed.

n = 1, 2, or 3 Output Errors – Output in error goes to failsafe level

OUTPUT n OPEN Analog output n current is less than 3 mA and is less than

output minimum mA value. Check wiring.

n = 1, 2, 3, or 4 Alarm Conditions

ALARM n ACTIVE

Alarm number

n is currently active.

1 2 ... 199 200 201 202 203 204 205 206 207 208 209 ... 257 258

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