Hioki LR8400-20, Instruction Manual

Page: 48 / 300

2.4 Making Connections
36
< Voltage/Temp Unit >
Required items: phillips screwdriver (for M3 screws), measurement leads (for voltage
measurement), or thermocouple (for temperature measurement)
If connecting crimped terminals to the analog input terminals, use insulated terminals
for M3 screws with the size shown below.
6 mm
max.
6 mm
max.
Voltage and Thermocouple Temperature Measurement
1
Loosen the screws in the ter-
minal block cover, and lift the
cover.
2
Loosen the terminal block
screws, insert the bare ends of
the leads, and tighten the
screws.
3
Connect to the measurement
object.
4
Replace the terminal block
cover, and tighten the screws.
Torque screws to no more than
0.6 N
•
m.
When measuring instrumentation
control equipment
(Applying 4 - 20 mA input current)
For details on in-
strumentation con-
trol equipment
measurements,
see (p. 57).
Connect a 250
Ω
shunt resistor as
shown.
2
3
The insulation colors of wires, which are to be
connected to the plus and minus terminals, differ
depending on countries or manufactures. Check
with the manufacturer on the colors and connect
them according to instructions.
K thermocouples experience a physicalphenomenon known as short
range ordering, which can prevent accurate measurement within the
range of 250°C to 600°C.
Please choose a sensor after checking with the manufacturer of the
thermocouple you intend to use.