Z-2400-A2I Analogue Input Connections; Connecting Rtds To The Z-2400-A2I Analogue Inputs; Connecting Thermocouples To The Z-2400-A2I Analogue Inputs - Intech Instruments Z-2400-A2 Series Installation Manual

Z-2400-A2I Analogue Input Connections.

ALWAYS program the Z-2400-A2I before connecting inputs!
Remember to always reset (power off and on) the Z-2400-A2I after programming.
CAUTION
Risk of electric shock.
device. Please take appropriate precautions to ensure safety.
CAUTION
Risk of Danger.
depending on what external circuit it is connected to. Appropriate considerations must be given to
the potential of the sensor input with respect to earth common.
Sensor Break for Analogue inputs.
Upscale: RTD and Thermocouple inputs only.
Downscale: Broken wireless link and all other input types.

Connecting RTDs to the Z-2400-A2I Analogue Inputs.

Note 1. To minimise lead resistance errors, 3 wire RTDs
should be used. If 2 wire RTDs are used, small offset errors
can be compensated for in the software.
Note 2. All RTD cable to be screened and the screens earthed
at one end only. The three wires must be the same resistance.
(i.e. the same type and size.) Refer to 'Z-2400-A2 Wiring and
Installation' for recommended types.

Connecting Thermocouples to the Z-2400-A2I Analogue Inputs.

Note 1. When using the default integral CJC for accurate
thermocouple measurement, especially low temperature:

Avoid drafts and temperature differences across
terminals (not to be exposed to direct sunlight).

Once installation is complete, close the cabinet door and
allow the cabinet to reach equilibrium. This may take
several hours.

Place all the thermocouple probes into a calibrated thermal
bath at temperature of interest. Any errors can be zeroed
out in software.
Dangerous and lethal voltages may be present on the terminal of the
The sensor input can potentially float to dangerous and unexpected voltages
14
Z-2400-A2I
A
B
B
A
B
B
Z-2400-A2I
4
CH2
5
6
1
2 CH1
3
4
CH2
5
6
1
2 CH1
3