Diesel Flow Meter Specifications: Flow & Accuracy

For low-flow diesel measurement, compare CE-131 at 1–10 LPM with the CE-102 digital diesel flow meter at 7–40 LPM. For higher flows and ±0.2% accuracy, compare the CE-105 variants by flow range and size.

How do the meters compare on flow, accuracy and features?

The four CE-105 positive displacement variants have the tightest accuracy figure here: ±0.2%.

The CE-102-C row belongs to the CE-103 product family; it is not the separate CE-102 digital meter. Two other rows share the CE-103-C label, so use inlet size and flow range to identify the required variant.

Which meter fits each operating requirement?

For low flow, Chintan Engineers offers CE-131 at 1–10 LPM and CE-102 at 7–40 LPM in India. Choose CE-131 if a preset quantity must trigger a valve signal. Choose CE-102 if the line needs pulse output or an 8-digit non-resettable totalizer.

From our installations, an industrial tools manufacturer needed a digital display and data output for low-flow diesel monitoring. Those two functions should be checked alongside flow range; a local display alone does not provide the CE-102 pulse output.

Say you need to measure 30 LPM. That hypothetical flow falls within both the CE-102 and CE-PDDFM-40 ranges. CE-102 has a 3/4-inch size and ±0.5% accuracy; CE-PDDFM-40 has a 40 mm size and ±0.2% accuracy.

For a mechanical readout, CE-104 has a 1-inch BSPT/NPT connection and ±1% accuracy. It is designed for non-commercial use only. Its specified liquids include diesel, kerosene and gasoline.

The CE-105 variants cover sizes from 40 mm to 100 mm. Each has 0.05% repeatability, a 10 bar maximum pressure and an 80°C maximum temperature. Match the individual variant’s flow range to the line rather than selecting by accuracy alone.

What display and output features should I match to the installation?

For monitoring, CE-102 provides a built-in reed-switch pulse output and a single-channel signal output. Its 5-digit LCD shows a subtotal, while its 8-digit totalizer cannot be reset. It runs on two alkaline batteries and provides a correction factor.

The CE-131 meter with LCD controller displays real-time flow on a backlit 3-inch LCD. At the preset quantity, it sends a signal to a solenoid valve; that valve is not included. Liquid-temperature display requires an extra temperature sensor.

CE-131 uses DC 24 V ±8 V / 1 A supply power. Its flow sensor works at 3–12 V. The specified normally closed valve works at DC 12 V / 0.3–0.5 A.

CE-103 offers litres, gallons, pints and quarts, with approximately 9,000 hours of battery operation. The CE-104 mechanical meter has rotating wheels, a resettable subtotal and a non-resettable master totalizer.

CE-105 has a litre/gallon register. Pulse output, air elimination, counters, a set-stop counter and a ticket printer are accessory options. Specify any required accessory for the selected CE-105 variant.

Use this checklist to shortlist a meter

Check the line’s flow and connection first; CE-131 covers 1–10 LPM, while CE-102 covers 7–40 LPM.

• Flow: Compare the line’s lowest and highest operating flows with the chosen variant’s range.
• Connection: CE-102 is 3/4 inch; CE-104 is 1 inch BSPT/NPT. CE-PDDFM sizes start at 40 mm.
• Accuracy: CE-102 and CE-131 specify ±0.5%; CE-105 variants specify ±0.2%.
• Operating limits: CE-102 specifies 7 bar and 70°C maximum. CE-105 specifies 10 bar and 80°C maximum.
• Function: CE-102 has pulse output; CE-131 signals a valve at a preset quantity. CE-105 pulse output is an accessory option.

For a CE-103-C enquiry, give the inlet size. Its 1-inch and 1.5-inch rows have different flow ranges and accuracy figures.

What calibration information do the meters provide?

To calibrate a diesel flow meter, compare its volume reading with a measured reference volume, then use that model’s adjustment method. CE-102 provides a correction factor, while CE-104 supports calibration at the workplace. The exact adjustment steps depend on the selected meter.

On CE-103, the button named Calibrate selects the measurement unit and displays total volume. CE-105 has a calibrator adjustable to 0.2% custody accuracy. If the meter will measure a sale, check the approval and verification requirements for that installation separately.

Frequently asked questions

What does the CE-105 calibrator adjust to?

The CE-105 calibrator adjusts to 0.2% custody accuracy. Its four CE-PDDFM variants specify ±0.2% accuracy.

Does the CE-102 provide a pulse output?

Yes. CE-102 has a built-in reed-switch pulse output and a single-channel signal output.

What flow range does the CE-131 cover?

CE-131 covers 1–10 LPM at ±0.5% accuracy. Its controller can signal a valve when flow reaches a preset quantity.

Can the CE-103 display different measurement units?

Yes. CE-103 offers litres, gallons, pints and quarts. Its Calibrate button selects the unit and displays total volume.

Quick pick

• CE-131: 1–10 LPM with a preset-quantity valve signal.
• CE-102: 7–40 LPM with pulse output and a non-resettable totalizer.
• CE-104: Mechanical register, 0–120 LPM, for non-commercial use.
• CE-PDDFM-40 to -100: Check each range and size where ±0.2% accuracy is required.