Guided radar level meter
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 (TIIS, ATEX) is also available.
The display section can be separated and mounted on another unit. Is approved for CE marking.
Features, keys | Usage, use examples | Standard specifications
Features, keys
- 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. - 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. - 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 - An intrinsically safe explosion-proof type is also available
This model has obtained Japanese explosion-proof(TIIS). (ExiaⅡBT5Ga/Gb)
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, Ci≒0μF、Li≒0mH | |
| Input (terminals 6 and 7) | IIB：Uo=27.3V、Io=93mA、Po=0.64W、Co=0.68μF、Li=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
