Basler Electric BE1-851 - Manual (Page 300)

Table 13-27. Timing Ranges
Style Number Current Low Limit High Limit
x1xxxxx 0.2 amps 8.300 sec 9.172 sec
x1xxxxx 1.0 amps 2.493 sec 2.755 sec
x1xxxxx 2.6 amps 1.824 sec 2.016 sec
x1xxxxx 4.0 amps 1.650 sec 1.822 sec
x3xxxxx or x5xxxxx 1.0 amps 8.300 sec 9.172 sec
x3xxxxx or x5xxxxx 5.0 amps 2.493 sec 2.755 sec
x3xxxxx or x5xxxxx 13.0 amps 1.824 sec 2.016 sec
x3xxxxx or x5xxxxx 20.0 amps 1.650 sec 1.822 sec
Maintenance
BE1-851 preventative maintenance consists of periodic replacement of the backup battery (optional). See
Backup Battery for Real Time Clock for battery replacement guidelines. Testing should be performed
according to scheduled practices. If the relay fails to function properly, consult the Customer Service
Department of the Power Systems Group, Basler Electric, for a return authorization number prior to
shipping.
Backup Battery for Real Time Clock
The backup battery for the real time clock is an optional feature available in BE1-numeric products. A
3.6V, 0.95Ah lithium battery is used to maintain clock function during extended loss of power supply
voltage over 8 hours. In mobile substation and generator applications, the primary battery system that
supplies the relay power supply may be disconnected for weeks or even months between uses. Without
battery backup for the real time clock, clock functions would cease after eight hours. A capacitor provides
eight hours of backup when no battery is installed.
The battery should be replaced after five years of operation. The recommended battery is a lithium 3.6V,
0.95Ah battery (Basler part number: 9318700012 or Applied Power part number: BM551902).
To Replace Battery in H1 Case
Step 1: Remove the unit from the case.
Step 2: Disconnect the battery cable from the connector on the right side of the unit. See Figure 13-2
for battery location on H1 type units.
CAUTION
Be sure that all static body charges are neutralized before touching the PC
board.
Step 3:
The battery is located on the left side of the case (see Figure 13-2). Using a 5/16” nut driver,
remove the nut holding the battery strap in place. Then remove the old battery being careful
not to hang the leads on the PC board components. Consult your local ordinance for proper
battery disposal.
13-12 BE1-851 Testing and Maintenance 9289900990 Rev R