Athena Technologies 16C instruction manual Make sure that you are using Appropriate thermocouple

Wiring

Thermocouple circuit resistance should not exceed 100 ohms for rated accuracy; errors will occur at higher resistance values.

If shielded thermo- couple wire is used, terminate the shield only at one end.

Wiring

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Figure 5. Thermocouple Input Wiring
Make sure that you are using
the appropriate thermocouple		8
and extension wire. Connect the
negative lead (generally colored		9
red in ISA-type thermocouples)					T/C
to contact #9; connect the		10
positive lead to contact #10.
Extension wires must be the
same polarity as the thermo-
couple.
Figure 6. RTD Wiring
The Series C accepts input from
2- or 3-wire, 100 ohm platinum	8
resistance temperature detectors
(RTDs). Connect 2-wire RTDs	9				RTD
to contacts #9 and #10, with a
jumper across contacts #8 and	10
#10. Keep leads short and use
heavy gauge copper extension			Note: For 2-Wire RTD
wire, if necessary, to minimize
				Jumper 8 & 10
lead resistance. For long runs,
3-wire RTDs should be used.

Figure 7. Process and Linear Input Wiring

Voltage Inputs: Connect the positive voltage input to contact #10; the negative input to contact #9. Current Inputs: Connect the positive current input to contact #10; the negative input to contact #9.

The Series C power supply accepts 100 to 250 Vac and 100

to 250 Vdc line power without any switch settings or polarity considerations. All connections should be made in accordance with the National Electrical Code and local regulations, using only NEC Class 1 wiring for all power terminals.

It is advisable, but not necessary, to fuse one leg of the incoming power line, contact #11, with a 2AG, 0.5 amp rated fuse. It is recommended that instrument power and load power be fused independently.

Figure 8. Power Wiring Connection

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11 12

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5	10	100	- 250	V 50/60 Hz
		100	- 250	Vdc (Auto Polarity)
L1	L2