The WHLDQ heat and cold metering system is composed of WHLD on-site display intelligent electromagnetic flowmeter (stainless steel electrode, PTFE lining); WHBU type Chinese LCD heat and cooling meter; A system consisting of an outlet PT1000 heat sensor, an imported PT1000 heat sensor, and supporting cables.
The entire system is collected by WHLD local display intelligent electromagnetic flowmeter to obtain flow signals, and provides flow data to SB-2100 heat and cooling meter through 4-20mA standard current signal. The outlet PT100 and inlet PT100 heat sensors provide temperature data. The WHBU heat and cooling meter performs comprehensive calculations based on the above data, displaying the total amount of heat and cooling used. Accumulation can be done using units of heat such as GJ, KJ, J, MJ, etc. And it can display instantaneous heat, accumulated heat, enthalpy difference, enthalpy value, instantaneous flow rate, and accumulated flow rate.
Chinese LCD display, cumulative flow rate, instantaneous flow rate, cumulative thermal difference, instantaneous thermal difference, frequency, density, inlet temperature, outlet temperature, current time.
Has small signal cutoff function;
Report query function:You can query the daily and monthly cumulative volume reports for the past year, as well as the last 20 power outage records, cumulative outage time, and cumulative outage frequency.
Automatic repair function:In addition to the software watchdog, the hardware system is equipped with a watchdog and a power on/off reset system. In case of program errors or unexpected crashes, the instrument can be forcibly restored to operation.
Power off protection function:The calculation results inside the machine and the data set by the user will not be lost during power outage, and will be saved for more than ten years.
| Measure fluid | -------------------- | Conductive liquid, slurry |
| conductivity | -------------------- | ≥ 5 S/cm |
| flow rate range | -------------------- | 0.5-10m/s Economic flow rate 1-3 m/s |
| accuracy class | -------------------- | <500mm ± 0.5% ≥ 500mm ± 1.0% (normal flow rate) |
| repeatability | -------------------- | <500 mm ± 0.5% ≥ 500mm 0.3% (normal flow rate) |
| Working pressure | -------------------- | ≤ 0.6MPa (DN1100~1200) |
| ----------------- | ≤ 1.0MPa (DN200~1000) | |
| ----------------- | ≤ 1.6MPa (DN10~150) | |
| Fluid temperature | -------------------- | Grade E < 80 ℃ |
| ----------------- | H-grade < 150 ℃ | |
| protection grade | -------------------- | IP65 rating |
| ----------------- | IP68 | |
| Electrode material | -------------------- | Stainless steel |
| ----------------- | Platinum iridium | |
| ----------------- | Ha Shi | |
| ----------------- | Tantalum | |
| ----------------- | Titanium | |
| Lining material | -------------------- | Natural rubber |
| ----------------- | Acid resistant rubber | |
| ----------------- | Chloroprene rubber | |
| ----------------- | Polyurethane rubber | |
| ----------------- | Polytetrafluoroethylene | |
| Flange Material | -------------------- | Carbon steel |
| output signal | -------------------- | Standard power supply 4-20 mA |
| RS-232 | ||
| communication | -------------------- | RS-485/HART/PA bus/FF bus |
| call the police | -------------------- | Always open |
| Working power supply | -------------------- | DC24V10VA/AC220V10VA |
| work environment | -------------------- | -25 ℃~55 ℃ |
| vibrate | -------------------- | <2g |
| impact | -------------------- | < 20g |
