Ultrasonic wave type level meters

 

Features, keys

1. The sensor and amplifier are separated from each other. A multiple amplifier is employed that can measure two channels.
   It has good cost performance due to the multiple amplifiers.
   * When 1 channel is used, two lines can be output (8 alarms and 2 current outputs).
   * Using two channels, low cost level measurement is possible.
2. Easy to adjust settings at fields
   A large LED is used for display. The display not only shows levels, but echo wave form and trend graphs. Therefore, it allows easy adjustment locally.
3. Various functions for measurements
   By apply correlational processing to the received ultrasonic wave signals, external noise and external ultrasonic wave effects are decreased.
   Eco graph screen and trend screen are standard. Various process setting functions on these screens allow high stability in poor measuring conditions.

 

Connection examples and sensors

Connection examples

Sensor

Model name		M88-N	M99-N	M88-F	M99-F	M88-K	M99-K
Photograph
Sensor material		Polypropylene Silicon Epoxy	* PVDF	Polypropylene Silicon Epoxy	* PVDF	Polypropylene Silicon Epoxy	* PVDF
Connection type (material)		Standard screw-in type		Terminal box, with flange		With angle adjuster
		R1	G1	* JIS5K100A FF (PVC)		* JIS5K100A FF (SUS304)
Connection case	Materials	-		Aluminum (AC4A-F) Paint: Munsell 7.5BG6/1.5
	Protection level	IP66		IP65
Weight		Approx. 600g		Approx. 1,700g		Approx. 5,600g

* M99 is made of PVDF resin that offers excellent resistance to chemicals.
* Can be altered if required.

 

Usages, use examples

• Measures liquids, powders, and granules continuously without contact
• Measure corrosive and adhesive materials
  Ex.: Monitor city water level, sewage, drain liquid, chemical agents (acids, alkalis), slurry, storage tanks, silos, etc.

 

Standard specifications

Amplifier

* Measurement distance		0.3 to 12m
Power source required		100 to 240V AC
Power consumption		15 VA
Output		Current 4 to 20mA DC X 2 lines (load resistance 60Ω) Relay 4 X 2 lines Contact point capacity 250V AC, 30V DC 5A (2 lines of power output when only 1 channel is used, 8 contact points can be used for relays)
Communication		RS485 (Connectable up to 32 units) RS232C
Measurement precision		0.25%F.S. or ±3cm, whichever is larger
Resolution		1mm
Measuring cycle		1.3 sec.
Operating temperature:		-20 to +70 degrees
Case	Materials	Aluminum (AC4A-F) Painting color: Silver Window: Acrylic
	Protection level	IP55 or equivalent
Weight		Approx. 3,500g

*: The nominal measuring distance is determined by the static water level used as a reflecting mirror. It may become shorter with various measuring conditions.
(Steam, condensation, waves, powder and granulated materials, etc.)

Sensor

Model name		M88	M99
Ultrasonic wave frequency		40kHz
* Beam angle		12°	22°
Connection (material)	Screw-in	R1	G1
	Flange	JIS5K100AFF (PVC)
	Angle adjustment	JIS5K100AFF (SUS304)
Operating temperature		-20 to 70 degrees
Sensor material		Polypropylene Silicon Epoxy	* PVDF

* The actual measuring range is determined by each measuring condition.For details, contact to our staff.
* M99 is made of PVDF resin that offers excellent resistance to chemicals.
? A meter with a weir meter function is also available as optional.

For inquiries about this product, fill in this form. Then send it by fax.