Page 264 - 2019종합카다로그_Pressure gauge

Electrical

Switch Rating Withstand voltage Insulation resistance
125 V AC 0.2 A Between noncontiguos terminals
Reed switch 200 V DC 0.25 A 400 V AC for 1 minute 500 V DC 100 MΩ or over
Between terminals and case
100 V DC 0.7 A Between terminals and case
(Resistance load) 600 V AC for 1 minute
Withstand voltage
* A contact protection circuit is required when using an inductive load or a load (Capacitive load, long cable, etc)
through which a surge current (Inrush current) flows as the read switch load.
* These gauges cannot be used with 220 V AC.

Contact function

Connection
Code Type of contact Mark Operation system and operation diagram terminal number Setting
pointer
Pressure
When the differential pressure increases increases →
1 High alarm H (decreases) to the set pressure, the contacts OFF ON ˝-˞ Red pointer
operate and turn ON(OFF) the circult. 0 set max.
← Pressure
When the differential pressure increases decreases
2 Low alarm L (increases) to the set pressure, the contacts ˠ-ˡ Yellow pointer
operate and turn ON(OFF) the circult. ON OFF
0 set max.
Combines the upper limit type (reverse lower limit type) and lower limits ˝-˞ Red pointer
3 High and Low alarm H L type (reverse upper limit type). Each type operates independently.
ˠ-ˡ Yellow pointer
Combines two upper limit type (reverse lower limit type). ˝-˞ Red pointer
4 Two high alarm 2 H Each type operates independently. ˠ-ˡ Yellow pointer

5 Two low alarm 2 L Combines two lower limit type (reverse upper limit type). ˝-˞ Red pointer
Each type operates independently.
Yellow pointer
ˠ-ˡ

P680_04