MODEL 3081 pH/ORP

SECTION 10.0

 

PROGRAMMING FOR ORP MEASUREMENTS

TABLE 10-1. ORP Settings LIst

ITEM

MNEMONIC

DISPLAY

 

FACTORY

USER

 

 

 

LIMITS

 

SETTINGS

SETTINGS

 

 

 

 

 

 

PROGRAM LEVEL

 

 

 

 

 

A. Output Range (Section 10.3)

OutPut

 

 

 

 

1.

4 mA Output

 

-1400 to 1400 mV

-1400 mV

_______

2.

20 mA Output:

 

-1400 to 1400 mV

1400 mV

_______

3.

Hold

HoLd

3.80 to 22.00 mA

21.00mA

_______

4.

Dampening

dPn

0 to 255 seconds

0 seconds

_______

5.

Fault Current Output Setting

FAULt

3.80 to 22.00 mA

22.00mA

_______

B. Diagnostic (Section 10.4)

dIAGnOStIC

 

 

 

 

1.

Reference Cell Offset (Standardize error)

rOFFSt

0 to 1000 mV

 

60 mV

_______

2.

Diagnostics Function

dIAG

On/Off

 

Off

_______

3.

Glass Impedance Temperature Correction)

IMPtC

On/Off

 

Off

_______

4.

Reference Cell Impedance Type

rEF

LO/HI

 

LO

_______

5.

Reference Cell High Impedance Fault

rFH

0 to 2000 megohms (HI)

1500 megohms

_______

 

 

 

0 to 2000 kilohms

(LO)

140 kilohms

 

6.

Reference Cell High Impedance Warning

rWH

0 to 2000 megohms (HI)

1000 megohms

_______

 

 

 

0 to 2000 kilohms

(LO)

40 kilohms

 

7.

Reference Cell Low Impedance Warning

rWL

0 to 900 megohms

(HI)

20 megohms

_______

 

 

 

Does not apply for low impedance reference cell

 

8.

Reference Cell Low Impedance Fault

rFL

0 to 900 megohms

(HI)

10 megohms

_______

 

 

 

Does not apply for low impedance reference cell

 

C. Temperature (Section 10.5)

tEMP

 

 

 

 

1.

Temperature Sensor Type

tC

100-3; 100-4; 1000-3;

100-3

_______

 

 

 

1000-4: 3000

 

 

 

D. Display (Section 10.6)

dISPLAY

 

 

 

 

1.

Measurement type

tYPE

pH/ORP

 

pH

_______

2.

Temperature Units

tEMP

°C/°F

 

°C

_______

3.

Output Units

OUtPUt

mA/% of full scale

mA

_______

4.

Code

COdE

0 to 999

 

000

_______

E. Output Simulation (Section 10.7)

SIMOUtPUt

 

 

 

 

1.

Test

tESt

3.80 to 22.00 mA

12.00 mA

_______

76

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Emerson Process Management 3081 pH/ORP ORP Settings LIst, Mnemonic Display Factory User Limits Settings Program Level