Wiring Method - YOKOGAWA ZX8D User Manual

4.4

Wiring method

CAUTION
• Wiring work must be performed with all the power supplies to OFF to prevent electric
shocks.
• Be sure to perform class D grounding. Otherwise electric shock or malfunction may result.
• During installation work, care should be taken to keep the unit free from entry of cable chips
or other foreign objects. Otherwise, it may cause fire, trouble or malfunction of the unit.
• Use wiring materials that match the rating of the unit. Use of the wiring materials out of rating
may cause electric shocks or fire.
• Be sure to use a power supply of correct rating. Connection of power supply of incorrect
rating may cause fire.
• Wiring at a place which is exposed to water or rain, is prohibited in order to prevent electrical
shock or damage to the instrument.
External terminals are provided on the front of the instrument. Make connection to these
terminals according to Figure 4.1. Be sure to perform class D grounding.
Terminal screws are M4. Keep the power supply wiring to 3 m or shorter, and use a polyvinyl
chloride wire of 1.25 sq for 600V or equivalent.
Use shielded wiring for the output signal to reduce the influence of external noise.
Oxygen analyzer
1 2 3
Power supply:
100 V or
220 V AC
50/60 Hz,
approx.
200 VA
Figure 4.1
4 5 6 7
+ –
Output from Temperature
zirconia alarm setting
±20°C
detector
External wiring
Infrared gas analyzer
F0404.ai
IM 11G00E01-01EN
8
6th Edition : May. 21, 2018-00