Specification
The electromagnetic flowmeter is designed based on the Faraday electromagnetic induction principle and used to measure the instantaneous flow rate of conductive liquids in enclosed pipelines in flammable and explosive environments. During on-site monitoring and display, standard current signals, pulse signals, and RS485 digital signals can be output for recording, adjustment, and control, achieving automatic detection and control. It can be widely used in industries such as tap water, chemical industry, coal, environmental protection, light textile, metallurgy, papermaking, etc.
| Product |
Explosion-Proof Electromagnetic Flowmeter |
| Model |
MIK-LDG-A100D |
| Measured variable |
Direct measured variables: Flow velocity
Calculated measured variables: Volume flow, mass flow. |
| Velocity of flow |
Typically Velocity of flow: 0.5m/s~5m/s |
| Flow range |
0.32m³/h~1270m³/h |
| Nominal diameter |
DN15~DN300 |
| Range ratio |
10:1 |
| Ex symbol |
Ex db ib IIC T6...T4 Gb |
| Current output |
(4~20)mA, 24VDC,≤750Ω |
| Pulse output |
Fmax ≤ 5000 cp/s
Output pulse width: 0.1ms~2000ms
( This value is lower than the maximum duty cycle, with a maximum duty cycle of 1:1 Fmax ≤ 5000 cp/s ) |
| Communications |
RS485, MODBUS-RTU, Hart (optional) |
| Supply voltage |
100VAC~230VAC，50/60Hz；
20VDC~28VDC |
| Power consumption |
≤15W |
| Cable entries |
M20*1.5 or NPT1/2 |
| Accuracy |
Measurement value±0.5%(Flow velocity 0.5m/s~5m/s) |
| Repetitiveness |
0.16％ |
| Conductivity |
≥50μS/cm |
| Pressure rating |
DN15~DN250：PN<1.6MPa
DN300: PN<1.0MPa
(High pressure can be customized) |
| Ambient temperature |
-10℃~55℃ |
| Storage temperature |
-20℃~55℃ |
| Ingress protection |
IP65 |
1. What is the MIK-LDG-A100D explosion-proof electromagnetic flowmeter?
The MIK-LDG-A100D is an explosion-proof electromagnetic flowmeter for measuring conductive liquids in closed pipelines located in flammable and explosive environments. It has no moving parts, supports bidirectional measurement, and provides 4–20 mA, pulse and RS485 (Modbus RTU) outputs, with HART optional.
2. What does the Ex marking "Ex db ib IIC T6...T4 Gb" mean?
- Ex: equipment for explosive atmospheres
- db: flameproof enclosure protection
- ib: intrinsic safety protection (level ib)
- IIC: gas group IIC, the most demanding gas group (e.g., hydrogen, acetylene)
- T6...T4: temperature class range, depending on the configuration and process conditions
- Gb: equipment protection level for gas atmospheres
3. In which hazardous areas can the MIK-LDG-A100D be used?
Equipment with protection level Gb is generally intended for use in gas hazardous areas classified as Zone 1 and Zone 2. The applicable temperature class depends on your process conditions. Please tell us the area classification, gas group and required temperature class of your site so we can confirm the configuration.
4. Which explosion-proof certificate does it have?
Certification requirements differ by country and project. Please tell us which certification scheme your project requires, and our team will confirm the certificate that can be provided.
5. What is the difference between the MIK-LDG-A100D and the MIK-LDG-A100?
The MIK-LDG-A100D is the explosion-proof version, designed for hazardous areas with the Ex marking Ex db ib IIC T6...T4 Gb. For non-hazardous locations, the standard MIK-LDG-A100 is available with a wider size range.
6. What liquids can the MIK-LDG-A100D measure?
It measures conductive liquids with a conductivity of at least 50 μS/cm, such as process water, wastewater, and many chemical solutions. It cannot measure gases, steam or non-conductive liquids such as fuels, oils and most solvents.
7. What pipe sizes are available?
The MIK-LDG-A100D is available from DN15 to DN300.
8. What flow range and turndown ratio does it cover?
- Flow range: 0.32 m³/h to 1270 m³/h (depending on size)
- Typical flow velocity: 0.5 m/s to 5 m/s
- Range ratio: 10:1
Select the meter size so that your normal flow falls within the 0.5–5 m/s velocity range.
9. How accurate is the MIK-LDG-A100D?
- Accuracy: ±0.5% of measured value (flow velocity 0.5–5 m/s)
- Repeatability: 0.16%
10. What pressure ratings are available?
- DN15–DN250: PN <1.6 MPa
- DN300: PN <1.0 MPa
High-pressure versions can be customized.
11. What are the current and pulse output specifications?
- Current output: 4–20 mA, 24 VDC, load ≤750 Ω
- Pulse output: Fmax ≤5000 cp/s; pulse width 0.1–2000 ms; maximum duty cycle 1:1
12. What communication protocols are supported?
RS485 with Modbus-RTU is supported, and HART is optional.
13. What power supply does it require?
AC: 100–230 VAC, 50/60 Hz. DC: 20–28 VDC. Power consumption is ≤15 W.
14. What cable entries are available?
Cable entries are M20×1.5 or NPT 1/2. In hazardous areas, cable glands and wiring must meet the requirements of the applicable explosion protection standards.
15. What are the environmental and protection ratings?
- Ambient temperature: -10 °C to 55 °C
- Storage temperature: -20 °C to 55 °C
- Ingress protection: IP65
16. What medium temperatures and wetted materials are available?
Medium temperature and wetted materials (liner and electrodes) are selected according to the process liquid and temperature class requirements. Please send us the liquid name, concentration and process temperature, and our engineers will recommend a suitable configuration.
17. What variables does it measure?
It directly measures flow velocity. Volume flow and mass flow are calculated values; mass flow is calculated using a configured density. It supports bidirectional measurement of forward and reverse flow.
18. Which industries use the MIK-LDG-A100D?
Typical industries include chemical, coal, water supply, environmental protection, light industry and textiles, metallurgy and papermaking, especially where the measuring point is located in a hazardous area.
19. What should I consider when installing it in a hazardous area?
- Installation, wiring and maintenance must follow the applicable explosion protection standards and local regulations.
- Use suitable certified cable glands for the cable entries.
- Do not open the enclosure while the power is on in a hazardous area.
- Make sure the measuring tube is always full of liquid, and ground the meter properly.
- Provide sufficient straight pipe upstream and downstream of the meter.
Please follow the installation manual and consult our engineers for site-specific requirements.
20. Does the MIK-LDG-A100D need much maintenance?
No. It has a maintenance-free design with no moving parts and no flow obstructions, so pressure loss and routine maintenance are minimal.
21. What information should I provide to get a quotation?
To help us select the correct model, please provide:
- Liquid name, concentration and conductivity
- Flow range (min / normal / max) and pipe size
- Process temperature and working pressure
- Hazardous area classification, gas group and temperature class
- Required explosion-proof certification
- Cable entry type (M20×1.5 or NPT 1/2)
- Power supply (AC or DC)
- Output and communication requirements (4–20 mA, pulse, RS485, HART)
- Quantity
Send your requirements to info@asmik.com or contact us via WhatsApp at +86 13325716921.
