Built for harsh operating conditions, the TOOL shop heavy-duty positive displacement oval gear flow meter series withstands temperatures up to 80°C and pressures up to 1.0 MPa across all port sizes. This industrial stainless steel water flow meter is available in five port sizes from G1/4" to G1", delivering clean pulse output (50±10% duty cycle) and RS485 communication. This digital corrosion-resistant liquid flow meter features low power consumption and robust NPN outputs, enabling versatile digital integration, while the high-pressure stainless steel body ensures resistance to water, diesel, and mild chemicals, making it a durable chemical flow meter for demanding applications.
| Gear Flow Meter Parameters |
| Model |
T-LCD485ZATS-1/4 |
T-LCD485ZATS-3/8 |
T-LCD485ZATS-1/2 |
T-LCD485ZATS-3/4 |
T-LCD485ZATS-1 |
| Port Size |
G1/4"(1/4 inch) |
G3/8"(3/8 inch) |
G1/2"(1/2 inch) |
G3/4"(3/4 inch) |
G1"(1 inch) |
| Flow Range |
30-480L/H |
40-800L/H |
30-1200L/H |
30-3000L/H |
180-3600L/H |
| K-Factor |
Frequency (Hz) = [2.6 * Q] ± 5% (i.e., 156 pulses per liter of water) |
Frequency (Hz) = [2.3 * Q] ± 5% (i.e., 138 pulses per liter of water) |
Frequency (Hz) = [2.3 * Q] ± 5% (i.e., 138 pulses per liter of water) |
Frequency (Hz) = [1.2 * Q] ± 5% (i.e., 72 pulses per liter of water) |
Frequency (Hz) = [0.58 * Q] ± 5% (i.e., 35 pulses per liter of water) |
| Accuracy |
± 5% |
| Temperature Range |
≤ 80°C |
| Load |
≤ 10mA (at DC 5V) |
| Max Pressure |
≤ 1.0 MPa |
| Storage Temperature |
-25 ~ +80°C |
| Humidity |
25% to 90% RH |
| Output High |
> DC 4.5V (at DC 5V input) |
| Output Low |
< DC 0.5V (at DC 5V input) |
| Output Cycle |
50% ± 10% |
| Output Signal |
RS485 |
| Material |
Stainless Steel |
| Net. Weight |
1.5kg |
| Application |
gas stations, petrochemical plants, refineries, and tankers |
The parameters of the flow meter above are closely linked to the LCD screen's display and control functions. The following table outlines the technical specifications of the LCD screen, which is responsible for real-time flow data display and control output.
| LCD Screen Parameter |
| Operating Voltage |
10-30 VDC |
| Operating Current |
60mA MAX |
| Operating Pressure |
5 kg/cm2 |
| Response Time |
Real-time |
| Operating Ambient Temperature |
Real-time |
| Measured Liquid |
Water or other chemical liquids |
| Ingress Protection (IP) Rating |
IP65 |
| Instantaneous Flow Settable Range |
0 ~ 999.99 LPM (Liters Per Minute) |
| Total Flow Settable Range |
0 ~ 999,999 FTM (Flow Total Units) |
| Instantaneous Flow Control Output |
NPN (150mA Max) |
| Total Flow Control Output |
NPN (150mA Max) |
Features
- Five compact port sizes: G1/4", G3/8", G1/2", G3/4", and G1" threads allow flexible matching to existing pipelines without adapters, making this oval gear flow meter easy to install.
- Tailored flow ranges: Each size offers a dedicated measuring range (e.g., 30–480 L/H up to 180–3600 L/H) to suit small to medium liquid flow meter applications.
- RS485 digital communication: Modbus RTU protocol enables remote data logging, centralized control, and easy integration into industrial automation systems as a digital flow meter.
- Dual NPN pulse outputs: Two independent open-collector outputs (150mA max) provide instantaneous and totalized pulse output signals for external counters or PLCs.
- ±5% field accuracy: Reliable repeatability across the full flow range, suitable for process monitoring and batching control as a positive displacement flow meter.
- IP65-rated LCD display: Backlit screen shows real‑time flow rate (LPM) and accumulated total, featuring configurable scaling for both instantaneous and total flow.
- Stainless steel wetted parts: Corrosion‑resistant stainless steel construction handles water, mild chemicals, oils, and fuels up to 80°C and 1.0 MPa, ideal as a water flow meter or chemical flow meter.
- Low power draw: Sensor consumes ≤10mA at 5V DC, making the flow meter suitable for battery‑powered or solar‑powered remote installations.
- Wide industrial use: Proven in gas stations, petrochemical plants, refineries, tanker loading, water treatment, and chemical dosing skids as a reliable industrial flow meter.
Dimension (Unit: mm)
Application
The TOOL shop heavy-duty positive displacement oval gear flow meter series is widely used in gas stations for accurate fuel dispensing monitoring, in petrochemical plants for chemical liquid batching and process control, in refineries for measuring intermediate or finished product flows, and on tankers for loading/unloading custody transfer. As a reliable industrial water flow meter and liquid flow meter, it features RS485 communication, NPN pulse outputs, and an IP65-rated LCD. These stainless steel meters provide reliable real‑time data and digital integration across all these demanding liquid handling environments.
Tips: What do you need to know before using the flow meter?
Data saving: Before replacing the flow meter display battery or disconnecting power, press the CLEAR (CAL) key to reset the accumulated partial flow value to zero. This ensures that the total accumulated totalizer is retained. Otherwise, the previous total flow data will be lost.
Waterproof protection: This LCD display is not waterproof or dustproof. Please take appropriate measures to protect it from dust and moisture ingress. Outdoor installation is not recommended.
