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BELZ Explosion-Proof Digital Counter

Current location:Home page -> Product -> Accessories to Liquid Flowmeter

■Product Introduction
BELZ is an advanced explosion-proof digital counter which is used with positive displacement flowmeters manufactured by Hefei Jingda Instrument Co., Ltd.. Employing a two row LCD display, accumulated total, batch total and transient flow rate can be displayed on site. Both pulse and analogue (4~20mA with HART) outputs are available to meet various requirements of customers. It is fully competent in modern flow measurement and control.

BELZ is an advanced explosion-proof digital counter, belonging to the flowmeter accessories, it can be installed in Hefei Precision Instrument Co., Ltd. of various volumetric flowmeter. The digital counter with dual LCD display, both on-site display of the cumulative flow of the value can also show the size of the flow and the amount of single-class cumulation, and a variety of functions to meet the user's different output requirements, can output pulse volume, Analog 4 ~ 20mA, to achieve HART communication, fully meet the modern flow measurement, control needs.

■ Product Features
One. Pulse, analog, HART various output functions to fully meet the different needs of users.
Two. Double-row LCD display, can show the cumulative amount, instantaneous flow, single-class accumulation, at a glance.
Three. Internal parameters and accumulation The data is not lost when the battery is disconnected or replaced.
Four. Display the flow unit optional rise, cubic, liters / hour, cubic / hour.
Five. Single shift can be cleared to meet the user counter zero requirements. Product reliability, good versatility.

■ Technical parameters

One. Display range
Cumulative amount: 0.000 liters (cubic) ~ 99999999999999 liter (cubic)
Single shift: 0.000 liters (cubic) ~ 99999999 liters (cubic)
Instantaneous flow: 0.000 liters (cubic) / hour to 99999 liters (cubic) / hour
Two. Counter use Ambient temperature: -25 ℃ ~ 55 ℃
Three. Protection signs: Exd ⅡBT5, Exia ⅡCT5 (BELZ-2 type)
Four. Protection class: IP65
Five. Electrical output piping: G1 / 2 "internal thread, suitable threading cable diameter φ7.5-φ9.5
Six. Signal output: pulse output DC24V power supply, voltage pulse high level is greater than 20V, voltage pulse low level is less than 1V.
DC12V power supply, the voltage pulse high level is greater than 10V, the voltage pulse low level is less than 1V.
Seven. Analog output: 4-20mA
Eight. Communication output: 4-20mAHART protocol


■ Function selection
Type Function Terminal wiring
BELZ-0 No external power supply, internal battery-powered, metering and display flow accumulation, flow size, flow meter continuous operation, the battery can be used for more than 2 years, the battery energy is prompted to replace the battery.  
BELZ-1 Three-wire system, external DC 12V or 24V power supply, metering and display flow accumulation, flow size, output remote pulse signal, power can be displayed, but not measured, no output pulse. Subject to random instructions
BELZ-2 Two-wire system, external DC 24V power supply, measurement and display flow accumulation, flow size, output 4-20mA, power is not displayed, no measurement, no output. Subject to random instructions
BELZ-3 Four-wire, external DC 24V power supply, metering and display flow accumulation, flow size, output remote pulse signal and 4-20mA analog. Power is not displayed, no measurement, no output. Subject to random instructions
BELZ-4 2-wire, external DC 24V power supply, metering and display flow accumulation, flow size, output 4-20mA, can achieve HART communication, power is not displayed, no measurement, no output Subject to random instructions