HOME > Level meter (continuous type) > Guided radar level meter GRLM series

Guided radar level meter

GRLM series
GRLM series
Guided radar level meter optimum for a variety of substances
An intrinsically safe explosion-proof type is also available

This level meter detects the level of the substance without being affected by changes in the surrounding such as: high temperatures, high pressures, steam, gases, or changes in the characteristics of liquid. No moving parts and maintenance free. Intrinsically safe explosion-proof construction (ATEX) is also available.

  • For liquid
  • For powder

The display section can be separated and mounted on another unit. Is approved for CE marking.

 

Features, keys

  1. Not affected by changes in the surrounding
    This level meter detects the level of a substance without being affected by changes in the surroundings such as: high temperatures, high pressures, steam, gases, or changes in the characteristics of the liquid.
  2. Can be used in small storage tank or large silos
    It can measure levels at depths up to10m. (For depths greater than 10m, please contact us.) A high temperature model is also available.
  3. Highly functionality.
    Sensitivity can be set, and a teaching mode and display unit can be selected. This level meter identifies faulty reflections caused by obstacles
  4. An intrinsically safe explosion-proof type is also available
    Models that are intrinsically safe and explosion-proof (ATEX specifications) are also available. (II1/2GExiaIIBT5Ga/Gb)
    This series is also approved for CE marking.
 

Usages, use examples

  • Measures liquids, powders, and granulated material continuously
  • Measure corrosive and adhesive materials
    Ex.: Monitor city water level, sewage, drain liquid, chemical agents (acids, alkalies), slurries, storage tanks, silos, etc.
 

Standard specifications

Level meters

Models GRLM-70-10 GRLM-70-11 GRLM-70-30 (33) GRLM-70-32
Type of electrode used SUS electrode Sheath electrode SUS wire electrode
+ plumb bob (anchor)
Sheathed wire electrode
+ plumb bob
Power source Standard model (No explosion-proof): 18 to 36 VDC Explosion-proof model: 18 to 30 VDC
Output 4 to 20 mA DC
Measurement precision *1 }1%, or less than }10mm, whichever is larger
Resolution 1mm
Ambient temperature -30 to +70 degrees
Electrode temperature
(high temperature type)
-40 to +85 degrees
(+200 degrees)
-40 to +85 degrees
(+130 degrees)
-40 to +85 degrees
(+200 degrees)
-40 to +85 degrees
(+130 degrees)
Maximum allowed pressure
(high temperature type)
10MPa
(1MPa)
1.5MPa
(0.3MPa)
10MPa
(3MPa)
0.5MPa
(0.1MPa)
Measuring length 300 to 2000mm 300 to 2000mm 1 to 10m *2 1 to 12m
Sensitivity setting 8 stages (LOW/MEDIUM/HIGH/USER specified, 1 to 8)
Non-sensing zone
(Below the screw / tip)
Depending on the sensitivity setting
LOW/MEDIUM/USER specified 1 to 4: 100mm/0mm
HIGH/USER specified 5: 150mm/50mm
USER specified 6 to 7: 200mm/50mm
USER specified 8: 250mm/50mm
Connections G1
Electrode material SUS304 *3 Surface PFA
(Internal SUS304)
Wire: SUS304
Plumb bob: SUS304
Anchor: SUS304
Wire: Outer sheath; FEP (Inside; SUS316L)
Plumb bob: PTFE
Protection class IP67
Explosion-proof (II1/2GExiaIIBT5Ga/Gb)

*1: When the meter is installed properly and it is making measurements in tap water. The measured result may be outside of the specified range depending on the conditions and object being measured.
*2: For depths greater than 10m, contact us.
*3: Can be changed to SUS316L.

Relay isolator

Models IRU-420-I- (power source specification) IRU-420-U- (power source specification)
Input signal 4 to 20mA
Output signal 4 to 20mA 0 to 10V
Power supply specifications 230V 60 to 230VAC, 50/60Hz, 85 to 230VDC (+10%)
24V 18 to 30VAC, 50/60Hz, 18 to 40VDC (+10%)
Power consumption 230V 7VA
24V 4W (rush current 0.8A)
Signal input voltage (terminals 5 and 6). Typ.: 24.1VDC (0mA), min. 18VDC (20mA)
Output current (terminals 9 and 10) 4 to 20mA DC (load resistance: 750 ohm / 25mA)
Linearity less than or equal to 0.05% (4 to 20mA)
Temperature drift less than or equal to 0.05% / 10 dgrees
EC type test result sheet FTZU 05 ATEX 01657X
Explosion-proof standard II(1) G[EExia]IIB/IIC, I(M2) [EExia]I
Explosion-proof
parameters
Input (terminals 6 and 7) Ui=28V DC, Ii=93mA, Pi=0.8W,@Ci0FALi0mH
Input (terminals 6 and 7) IIBFUo=27.3VAIo=93mAAPo=0.64WACo=0.68FALi=8mH
Limiting voltage Um=253V
Withstand voltage Between power supply terminals 3.5kV
Between input and output terminals 3.5kV
Ambient operating temperature -20 to +60 degrees
Material Housing Polycarbonate
Terminals CuBe
Mounting 35mm DIN rail
Protection class Applied IP20 / CE applied
Weight Approx. 200g

  Please feel free to inquire us

  • Inquiries
Page Top