Single Phase Ahoɔden Mita a ɛwɔ Rs485

 

Single phase ahoɔden mita a rs485 yɛ awo ntoatoaso foforo miniature nyansa anyinam ahoɔden mita a yɛn adwumakuw no de sii hɔ, leveraging mfe pii osuahu wɔ anyinam ahoɔden mita nhyehyɛe. Saa mita ahorow yi gye nkyerɛase a ɛkorɔn-nkyerɛkyerɛmu a wɔakyekyɛ mu LCD display ne RS485 nkitahodi ntam nkitahodi kwan ma ɛyɛ nokware-bere data nsakrae ne kɔmputa a ɛwɔ soro, a ɛma akyirikyiri mita akenkan tumi (a adwuma a ɛwɔ akyirikyiri control ma dannan/dum ne dwumadi a wopaw a ɛfa akyirikyiri prepaid recharge). Ɛma ɛyɛ mmerɛw kɛse sɛ wɔbɛhwɛ anyinam ahoɔden a wɔde di dwuma no so wɔ ɔkwan a ɛnyɛ adwuma so.

Wiring Mfonini:Terminals 1-4 a ɛwɔ ɔfasuo so no yɛ nea wɔde ma anyinam ahoɔden ne adesoa nhama (1 ne 2 ka L waya ho, 3 ne 4 ka N waya ho, ɛka adesoa no ho tẽẽ); nhama 9-12 yɛ dwumadie ntwemu (9: Pulse Positive, 10: Pulse Negative, 11: 485A, 12: 485B).

Ahwɛyiye a Wɔbɛyɛ wɔ Installation Ho:Ɛsɛ sɛ wiring kyerɛ honam fam wiring mfonini a ɛwɔ mita no nkyɛn, na wɔkamfo kyerɛ sɛ wɔmfa kɔbere nhama nkitahodi ahorow nni dwuma mfa nkɔ nkitahodi; wɔ tẽẽ-nkitahodi mita ho no, kyerɛ nsonsonoe a ɛda waya akwankyerɛ a ɛba ne nea efi mu ntam, na kyekyere nkɔnsɔnkɔnsɔn no mu den na amma nkitahodi a enye amfa mita no adwumayɛ a ɛnteɛ mma.

Nea edidi so yi ne adeyɛ a ɛsen fa single phase energy meter a ɛwɔ rs485 no mu.
Component Procurement ne Nhwehwɛmu
Kɔtɔ nneɛma titiriw te sɛ potentiometers, shunts ne LCD displays; screen qualified components denam hwɛbea nhwehwɛmu ne adwumayɛ sɔhwɛ so de hwɛ hu sɛ raw material quality.

PCB Board Nneɛma a Wɔyɛ ne Welding
Yɛ PCB boards sɛnea ɔmansin nhyehyɛe te; weld afã horow a wɔde SMT (Surface Mount Technology) di dwuma; bere a woawie no, yɛ solder joint inspection de hwɛ sɛ cold solder ne solder a ɛyera nsɛm, hwɛ hu sɛ circuit conductivity.

Nhyiam ne Sɔhwɛ a Edi Kan
Boaboa PCB boards, casings, terminals ne afã afoforo ano ma ɛnyɛ nneɛma a wɔawie; yɛ tumi-wɔ sɔhwɛ a edi kan no so de hwɛ sɛ LCD display ne mfitiaseɛ mita dwumadie no yɛ nea ɛfata, na yi nneɛma a ɛwɔ dwumadie a ɛnyɛ ne kwan so no firi hɔ.

Pɛpɛɛpɛɛ Calibration ne Aging Test
Fa anyinam ahoɔden calibration devices a ɛyɛ gyinapɛn di dwuma de susuw mita no pɛpɛɛpɛyɛ ho sɛnea ɛbɛyɛ a wobedi Class 1 pɛpɛɛpɛyɛ ahwehwɛde ahorow ho dwuma.

Nhwehwɛmu a Etwa To ne Nneɛma a Wɔde Gu Mu
Yɛ nhwehwɛmu a etwa to wɔ nneɛma a ɛfata wɔ onyin sɔhwɛ mu, a nea ɛka ho ne hwɛbea a wɔhwɛ, dwumadi a wɔsan sɔ hwɛ ne parameter verification; kyerɛw nneɛma a ɛfata din na kyerɛw nneɛma a wɔde kyekyere nneɛma ho na ama wɔahwɛ ahu sɛ biribiara nsɛee bere a wɔde rekɔ no.