KROHNE H250 M8-M9-M10 EN - Manual (Page 58)

7
SERVICE
58
H250
www.krohne.com 04/2011 - 4000269302 MA H250-R02 en
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_269302_PRT.book Page 58 Tuesday, April 12, 2011 10:17 AM