Manual

4 OPERATION
18
SMARTSENS ORP 1590
www.krohne.com 11/2013 - 4002547102 - MA SMARTSENS ORP 1590 R02 en
4.1.2 Calibration with HART
®
Handheld 475 FIELD COMMUNICATOR
Manual hold
• Start the function calibration
calibrationcalibration
calibration in menu mode Quick Setup
Quick SetupQuick Setup
Quick Setup or Setup
SetupSetup
Setup.
• Activate the function manual hold
manual holdmanual hold
manual hold to avoid an alarm.
• Select Yes
YesYes
Yes.
• Press Enter
EnterEnter
Enter to proceed.
Start calibration procedure
• Set value of ORP solution; Default setting: 468 mV. Press the key >
>>
> to enter the submenu. Now
you can change the default setting.
• Press Enter
EnterEnter
Enter and Ok
OkOk
Ok to proceed.
• Dip the sensor into the ORP solution and wait till the value is stable.
• Press Ok
OkOk
Ok to proceed.
i The measurement of ORP solution starts. After approx.10 seconds and a successful
calibration the following values appear:
Old ORP value in mV
ORP solution in mV
Electrode voltage in mV
New offset in mV
New ORP value in mV
• Press Ok
OkOk
Ok to proceed.
• Set the calibration date with DD-MM-YYYY. Press the key >
>>
> to enter the submenu. Now you can
change the calibration date .
• Press Enter
EnterEnter
Enter and Ok
OkOk
Ok to proceed.
i The message Save values?
Save values?Save values?
Save values? appear.
• Press yes
yesyes
yes to save the values.
• Press Enter
EnterEnter
Enter to proceed.
• Select no
nono
no to deactivate the function manual hold.
• Press Enter
EnterEnter
Enter to leave the calibration menu.
A ORP calibration is necessary in regular intervals or when installing a new ORP sensor.
If the calibration was not successful, the message Warning!!!
Warning!!!Warning!!!
Warning!!! appears behind the value New
New New
New
offset
offsetoffset
offset.
• Press Ok
OkOk
Ok to proceed.
• Set the calibration date with DD-MM-YYYY. Press the key >
>>
> to enter the submenu. Now you can
change the calibration date .
• Press Enter
EnterEnter
Enter and Ok
OkOk
Ok to proceed.
i The messages Warning!!! Offset out of range!
Warning!!! Offset out of range!Warning!!! Offset out of range!
Warning!!! Offset out of range! and Save values?
Save values?Save values?
Save values? appear.
• Select betweenyes
yesyes
yes or no
nono
no.
CAUTION!
Make sure that the sensor tip is clean and dust-free. If necessary, clean the tip as described on
page 20
.
CAUTION!
Moisture inside the sensor connector must be avoided! Moisture may cause a shortcut and
deliver erratic readings!
If moisture has entered the connector dry it with air (e.g. hair blower).
.book Page 18 Wednesday, October 30, 2013 11:26 AM