Leak Detector LD1 Series

An Advanced Leak Detector evolved from digital flow switch DFS3.

	Detecting the flow rate gap of IN-OUT.
	Approximately 3% leak detection is possible by the minimum leak detection setting.(Flow rate 25/min)
	Highly reliable switch with resistance to noise from a spot welding machine.
	Magnet or Iron proximity switch are prepared for detecting method, depending on the application.

Specifications

Click the Model number as follows, to check the details.

Model Number	LD1-1000-DC24V	LD1-1000-DC24V
Detection Method	Magnetic Proximity	Iron Proximity
Type	Resin Body
Body Material	Polyacetal
Fluid Used	water
Port Size	Rc3/8(with piping adaptor)
Operating Pressure Range	0 to 1.0MPa
Proof Pressure	1.5MPa
Ambient Temperature	0 to +50 Celsius degree (But do not use when frozen)
Fluid Temperature	0 to +70ºC(But do not use when frozen)
Flow Rate Range	2.5 to 25/min
Read Accuracy	5%fs
Hysteresis	Less than 5%
Alarm Response Time	approx. 500ms
Installation Direction	Free
Flow Direction	Bi-Direction (Up:Primary side Down:Secondary side)
Output Point	1c Contact Relay Output1 point (common when inadequate flow or leak)
Norminal Power	DC24V
Lead Detecting Flow	Approx. 3% leak detection is possible by the minimum leak detection setting.(when 25/min)
Mass	approx. 1300g

Note)	Please use within the flow rate range.
	The values show at the table are valued by tap water (20 Celsius degree). Flow rate range will change depending on the viscosity of used detecting fluid.

Electrical Specifications

Power Voltage		DC24V
Allowable Voltage Range		10%(Max. Norminal DC30V)
Power Consumption		Below 2W
Cable		VCTF 8-wires 0.3mm² length 1m
Frequency Output	Method	Photocoupler
	Max. Allowable Voltage	DC50V
	Load Current	Below 4mA (Output residual current Below 0.5V)

Output Specifications

Contact Arrangement		1cX1(common to flow or leak, and the relay will drive when over setting value)
Norminal Control Capacity (resistance load)		DC30V 1A/AC125V 0.5A
Max. Allowable Power (resistance load)		30W(DC)/62.5VA(AC)
Max. Allowable Voltage		DC110V/AC125V
Max. Energizing Current		1A
Min. Adaption Load		10A 10mV DC
Contact Spacing Insulated Resistance		Insulated Resistance Type DC500V Over 1000Mƒ¶
Contact Spacing Proof Voltage		AC750V /minute
Electric Life		Over 100 thousand times (Norminal Load, switching frequency 20 times/minute)