BAS-SVX090B-EN
47
2.5
3
3.5
4
1.5
0
0.5
1
2
40-40 20-20 0 60 80 100
Voltage Measured Across Input–Vdc
Thermistor Input–°C
Measured Voltage Across a Thermistor Input
2.5
3
3.5
4
1.5
0
0.5
1
2
Measured Voltage Across a Thermistor Input
Voltag e Measu red Across Input–Vdc
Thermis tor Inp ut–°F
500 1 00 150 200
Resistive Input–kW (Ohms)
Measured Voltage Acro ss a Resistive Input
Voltag e Measured A cross I nput–Vdc
10 124 60 2 16 188 2014
2.5
1.5
0
0.5
1
2
Charts showing measurements
across thermistor input
(Fahr/Celsius) and resistive input.
Current Inputs, Methods 1 or 2
General Information Checkout Procedure Measurement
Expected Value
Method 1 takes advantage of
the very low input resistance
of a DMM in current
measurement mode.
However, this method affects
the value of the Symbio 500
will use while controlling
outputs. When the meter is
set to current mode, the
current flowing into the
Symbio 500 circuit will drop to
zero or near zero.
Step 1
Measure AC voltage across
the current input
Vac ≈ 0.0 V
AC voltage will affect further
measurement
Step 2
Measure DC voltage across
the current input
Vdc ≈ 0.0 V
Step 3
Measure DC current across
the current input
Compare to input status in
Tracer TU
Commissioning and Troubleshooting in Powered State
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