Checking The Buffer Battery - Siemens VDO DTCO 1381 Technical Description

First calibration

10.4 Checking the buffer battery

Production date DTCO 1381
Edition 07/2007
The buffer battery must be replaced in the following cases to ensure
reliable function of the DTCO 1381:
• During installation, activation or initial calibration if the pro-
duction date of the DTCO 1381 is more than 12 months ago.
• During every regularly inspection.
The production date of the DTCO 1381 is shown on the packaging
and the model plate, coded as "MYY:
M = Month of production
A January
B February
C March
D April
E May
F June
YY= Year of production
04 2004
05 2005
06 2006
1. Check the production date of the DTCO 1381.
2. If the production date of the DTCO 1381 is more than 12
months ago, replace the buffer battery of the DTCO 1381, see
chapter 12.2 "Buffer battery", page 12-4.
Technical Description DTCO 1381

10.4 Checking the buffer battery

G July
H August
J September
K October
L November
M December
07 2007
08 2008
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