Mercoid PG系列差压开关
发布时间：2010/6/12 16:07:01 修改时间：2010/6/12 16:07:01 浏览次数：995

产品名称: PG系列气用微压/微差压开关
产品型号: PG

可调可视设定点刻度

特点：大膜盒，高灵敏度，外部可视刻度可调，快动或水银密封开关，被列入UL，FM和CSA清单
介质：空气及相容气体
可调范围：250-7500Pa ～ 3.5-35 KPa
工作温度：0-82.2 ℃
额定压力：不能超过最大的可调工作压力范围
接点容量：SPDT为4A/120VAC, 2A/240VAC,SPST为6A /120VAC, 3A/240VAC
安装方式：垂直
尺寸：177.8X101.6mm
重量：3.4Kg

选型表：

型号	范围	最大死区	开关类型
PG-153-P1	1-30" water (.25-7.47 kPa)	1.9" w.c. (0.47 kPa)	SPDT Mercury
PG-153-P2	0.5-5 psid (.03-3.45 bar)	0.4 psid (0.38 bar)	SPDT Mercury
PG-3-P1	1-30" water (.25-7.47 kPa)	1.3" w.c. (0.32 kPa)	SPST Mercury1
PG-3-P2	0.5-5 psid (.03-3.45 bar)	0.3 psid (0.21 kPa)	SPST Mercury1
PG-7000-153-P1	1-30" water (.25-7.47 kPa)	4" w.c. (1.0 kPa)	SPDT Snap
PG-7000-153-P2	0.5-5 psid (.03-3.45 bar)	.5 psid (.035 bar)	SPDT Snap
PG-7000-153HS-P1	1-30" water (.25-7.47 kPa)	4" w.c. (1.0 kPa)	SPDT Hermetically Sealed Silver Snap
PG-7000-153HG-P1	1-30" water (.25-7.47 kPa)	4" w.c. (1.0 kPa)	SPDT Hermetically Sealed Gold Snap

举例	PG			153	P1	PG-153-P1 (Vacuum) (Pressure) (Differential Pressure) Control, fixed deadband, automatic reset, SPDT mercury switch, adjustable range 1.0-30" w.c. (25-760 bar).	UL	FM	CSA
结构	PG					General purpose enclosure, NEMA-1 (standard)	UL	FM	CSA
复位操作	PR					Manual reset, operates on pressure increase automatically, resets on decrease¹	UL	FM	CSA
复位操作	PRL					Manual reset, operates on pressure decrease automatically, resets on increase¹	UL	FM	CSA
封装选项		W				Weather-resistant enclosure, NEMA-2, 3R		FM	CSA
封装选项		E				Explosion-proof enclosure, NEMA-7, 9, Class I, Groups C & D; Class II, Groups E, F & G, includes drain, specify if for pressure, vacuum or differential pressure.
电路(开关) 选项 (For Electrical Codes see Chart Below)				2		SPST mercury switch, elect. code K?, opens on vacuum, pressure or differential pressure increase	UL	FM	CSA
				2P		SPST mercury switch, elect. code L?, opens on vacuum, pressure or differential pressure increase	UL	FM	CSA
				3		SPST mercury switch, elect. code K?, closes on vacuum, pressure or differential pressure increase	UL	FM	CSA
				3P		SPST mercury switch, elect. code L?, closes on vacuum, pressure or differential pressure increase	UL	FM	CSA
				153		SPDT mercury switch, elect. code M?	UL	FM	CSA
				103		DPST, two SPST mercury switches, elect. code L?, both close on increase, FM approved, PG, PGW only	UL	FM	CSA
				105		DPST, two SPST mercury switches, one elect. code L?, one elect. code N, both open on decrease	UL	FM	CSA
				127		DPST, two SPST mercury switches, elect. code L?, both open on increase	UL	FM	CSA
				129		DPST, two SPST mercury switches, one elect. code L?, one elect. code N, both open on increase	UL	FM	CSA
				158		SPDT, two SPST mercury switches, one elect. code L? - opens on increase, one elect. code N - closes on increase	UL	FM	CSA
				161		SPDT, two SPST mercury switches, one elect. code L? - opens on decrease, one elect. code N - closes on decrease	UL	FM	CSA
				156		SPDT, two SPST mercury switches, elect. code L?, one- opens on increase, one closes on increase	UL	FM	CSA
				804		DPDT, two SPDT mercury switches, elect. code M?
				(__)		Other circuits available, consult factory
			7000	153		SPDT, snap acting switch, rated 15A at 120 VAC, 8A at 240 VAC, 0.5A at 120 VDC, .25A at 240 VDC (1)
				153HS		SPDT, Hermetically sealed snap switch, rated 5A at 125/250 VAC, 5A resistive at 30 VDC	UL
				153HG		SPDT, Hermetically sealed gold contact snap switch, rated 1A at 125 VAC, 1A resistive at 30 VDC	UL
			7200	804		DPDT, two SPDT snap acting switches, rated 5A at 120/240 VAC, 30 VDC resistive (1)
可调压差范围					P1	Adjustable range 1.0-30" w.c. (25-760 bar), maximum sustained pressure 2 psig* (0.14 bar)	UL	FM	CSA
可调压差范围					P2	Adjustable range 0.5-5 psig (.03-.35 bar), maximum sustained pressure 10 psig* (0.69 bar)	UL	FM	CSA

*	Maximum sustained pressure 15 psig (1.0), maximum surge limit 20 psig (1.4), both ranges when used as single pressure switch with low pressure port vented to atmosphere.
¹	7000-153 and 7200-804 not available with PR or PRL manual reset.
?	See Electrical Rating Chart Below.

ELECTRICAL RATINGS - Mercury Switch

CODE	RATING AC or DC
K	6A at 120 V, 3A at 240 V
L	10A at 120 V, 5 A at 240 V
M	4A at 120 V, 2A at 240 V
N	1A at 120 V, 0.5A at 240 V

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