Table 3. Tolerance Limits: 0.2V
TI Voltmeter
DMM Tolerance Limit
12.7 (example)
12.5 – 12.9 (±0.2)
Figure 1. Voltmeter Test Setup
HI +
DMM
LO -
TI
VOLTMETER
AUTO
RED
BLACK
OFF
+ -
MANUAL
VOLTS
TEST POINTS
+
POWER SUPPLY
DC OR
CABLE CHARGED 12V
BATTERY
-
WARNING
HARMFUL CURRENTS AND VOLTAGES MAY BE PRESENT IN THE TI DC BATTERY CABLE
LEADS. THE TI ON/OFF/RESET SWITCH MUST BE SET TO THE OFF POSITION BEFORE CONNECTING
OR DISCONNECTING THE TI DC BATTERY CABLE TO/FROM THE BATTERY.
4.1.6 LOAD CURRENT TESTS
Connect the equipment as shown in Figure 2.
4.1.7 Ensure that the AUTO-OFF-MANUAL switch is set to OFF
4.1.8 Connect shunt as described in table 2 item 2.2 and power supply or optima battery as described in table 2 item
2.3
4.1.9 Set switch to Manual to obtain Readings. Load will not remain on over 15 seconds. Refer to table 5, par 4.1.16
AMMETER AND SHUNT TEST SETUP
Figure 2. Ammeter Test Setup
3
+
DMM
NO 1
400 AMP 12V
+
POWER SUPPLY
-
(OR)
OPTIMA
BATTERY
-
+
TI
EXTERNAL
MILLIVOLT
CALIBRATED SHUNT TEST POINTS
-
-
+
500A 50 MV or
1000A 100 MV
-
+
VOLTS
(LED)
AUTO
OFF
MANUAL
