7
SERVICE
58
H250
www.krohne.com
04/2009 - 4000269302 MA H250-R02
7.2.5 Replacement - Retrofitting ESK2A
When replacing or retrofitting an ESK2A, the following are required at the time of
ordering:
•
SN - serial number or
•
SO - sales order
This information can be found on the indicator nameplate
•
De-energise the ESK2A.
•
Lift and remove the ESK2A with a screwdriver.
Plug-in technology is used to install the ESK2A.
•
The ESK2A plug-in tongues
1
are plugged in under the two bolts
2
on the baseplate.
•
Slight pressure is used to press the ESK2A onto the spring pins
3
until it stops, firmly
attaching the ESK2A.
If a change in measuring range, product temperature, product, density, viscosity or pressure is
desired, this can be done with the KroVaCal program or with a HART
TM
modem. However, each
measuring unit is subject to its own physical limits, which the DroVaCal program correctly
calculates, and may thus reject the desired change. If a change is performed using the program,
the new data is also transmitted to the ESK2A.
Program features and possibilities
•
Device identification
•
Device address
•
Serial number
•
Measuring point designation
•
Digital measured value query in flow units, % and mA
•
Test / setting functions
•
Calibration 4.00 and 20.00 mA
•
Set current output to any desired value
INFORMATION!
The ESK2A is factory calibrated, making it possible to replace it or retrofit it without
recalibrating.
MA_H250_R02_en_PRT.book Page 58 Tuesday, September 22, 2009 12:26 PM