MadgeTech pHTemp2000 Data Logger - Manual (Page 35)

Page 34
MadgeTech pHTemp2000
Section 9: Maintenance
The pHTemp2000 does not have any user-serviceable parts except the bat-
tery which should be replaced periodically. The battery life is affected by
battery type, ambient temperature, sample rate, sensor selection, offloads
and LCD display usage. The pHTemp2000 has a battery status indicator on
the LCD display. If the battery indication is low, or if the device seems to be
inoperable, it is recommended that the battery be changed.
To change the battery, locate and remove the four (4) 3/32 hex screws on
the back of the unit. Separate the halves and the battery compartment is
now visible. Remove the old 9V battery from the battery clips and replace
with a new 9V battery. MadgeTech recommends using 9V lithium battery. An
alkaline battery is acceptable, but will yield a shorter battery life.
Reminders:
- A 2,3, or 4 wire RTD probe is required to accurately measure pH.
- A resistor may be used to simulate a temperature if an RTD is not available.
(MadgeTech does not stock resistors)
For any other maintenance or calibration issues, MadgeTech recommends
the unit be returned to the factory for service. Before returning the device,
you must obtain an RMA from the factory. For further information, please
contact MadgeTech at:
MadgeTech, Inc .
6 Warner Road
Warner, NH 03278
TEL: 603-456-2011 • FAX: 603-456-2012
[email protected]
www.MadgeTech.com
BATTERY WARNING
Most MadgeTech data loggers contain a lithium battery. Do
not cut the battery open, incinerate, or recharge. Do not heat
lithium batteries above the specified operating temperature.*
Dispose of the battery in accordance with local regulations.
*See the individual specification sheets at www.madgetech.com.