Calibrate - ABB Endura APA592 Operating Instruction

Endura APA592
pH / Redox (ORP) transmitter

7.3.2 Calibrate

Menu
Calibrate
Exit
Calibrate Parameters
Parameter
PV Manual Cal
Auto Buffer Setup
Buffer Type
Buffer 1 Value
Buffer 2 Value
User def Soln.1
User def Soln.2
Auto Buffer Cal
56
Used to calibrate the transmitter.
2
Select
Description
Reference procedure for calibration of the pH process value.
Options comprise:

1 Point Manual – see Table 7.2, page 58

2 Point Manual – see Table 7.3, page 59

Output Hold/Release – a quick access menu to hold or release the
current output
Selects the type of buffer used:

User-defined

ABB

NIST

DIN 19266

Merck

US Tech
Enables selection of the Buffer 1 value based on Buffer Type.
Enabled when Buffer Type is not User Def.
Enables selection of the Buffer 2 value based on Buffer Type.
Enabled when Buffer Type is not User Def.
Enables entry of a user-defined Buffer Table 1 with up to 5 temperature and
pH values.
Enabled when Buffer Type = User Def.
Enables entry of a user-defined Buffer Table 2 with up to 5 temperature and
pH values.
Enabled when Buffer Type = User Def.
Performs a two-point calibration based on Auto Buffer Setup and with
automatic sample stability checking – see Table 7.4, page 61.
If the sensor is removed from a hot or cold process allow it to normalize to
ambient temperature prior to calibration.
If the sensor cannot stabilize using automatic buffer calibration, perform a
manual calibration.
7 Operator Pages and Menus
OI/APA592–EN Rev. E
Tx
Type
All
pH
pH