12
Commissioning
Inserting the Batteries
With four AA batteries, the Portavo has an
operating time of over 1000 h.
Open the battery compartment on the
rear of the device. Be sure to observe the
correct polarity when inserting the batter‑
ies (see markings in the battery chamber).
Close the battery compartment cover and
fasten it finger tight.
Check the shipment for transport damage and completeness (see Package
Contents).
CAUTION!
Do not operate the device when one of the following conditions applies:
• the device shows visible damage
• failure to perform the intended function
• prolonged storage at temperatures above 70 °C / 158 °F
• after severe transport stresses
In this case, a professional routine test must be performed.
This test should be carried out at our factory.
Note on Use in Hazardous Locations
WARNING! Impairment of explosion protection.
• Only open the battery compartment of the Portavo 904X outside the hazardous
location.
• The device cannot be repaired by users. For inquiries regarding repairs, please
contact Knick Elektronische Messgeräte GmbH & Co. KG at www.knick.de.
• Never use the USB port within the hazardous location.
Commissioning
Summary of Contents for Portavo 904X COND
Page 2: ......
Page 67: ...67 pH Buffer Tables 01 Mettler Toledo Nominal values in bold C pH ...
Page 68: ...68 pH Buffer Tables 02 Knick CaliMat Nominal values in bold C pH ...
Page 69: ...69 pH Buffer Tables 03 Ciba 94 Nominal values 2 06 4 00 7 00 10 00 C pH 1 extrapolated ...
Page 70: ...70 pH Buffer Tables 04 Technical Buffers to NIST Nominal values in bold C pH 1 values added ...
Page 72: ...72 pH Buffer Tables 06 HACH Nominal values 4 01 7 00 10 01 0 02 at 25 C C pH ...
Page 73: ...73 pH Buffer Tables 07 WTW Technical Buffers Nominal values in bold C pH ...
Page 74: ...74 pH Buffer Tables 08 Hamilton Nominal values in bold C pH ...
Page 75: ...75 pH Buffer Tables 09 Reagecon Nominal values in bold C pH 1 values added ...
Page 76: ...76 pH Buffer Tables 10 DIN 19267 Nominal values in bold C pH 1 extrapolated ...