DHXMJN00T1,DHXMJP13T1,DHXMJK12T2,DHXMJI03T3,DHXMJI13T4,DHXMJN42T5,智能流量積算儀
DHXMJP00T1,DHXMJK00T1,DHXMJE00T1,DHXMJI00T1,
DHXMJN10T1,DHXMJP10T1,無錫昌林，DHXMJK10T1,DHXMJE10T1,DHXMJI10T1,
DHXMJN20T1,DHXMJP20T1,DHXMJK20T1,DHXMJE20T1,DHXMJI20T1,
DHXMJN30T1,DHXMJP30T1,DHXMJK30T1,DHXMJE30T1,DHXMJI30T1,
DHXMJN40T1,DHXMJP40T1,DHXMJK40T1,DHXMJE40T1,DHXMJI40T1,
1．概述
本儀表是一個以微處理器為基礎(chǔ)、功能齊全、有通訊能力、能與各種流量變送器、傳感器配合使用的通用流量積算儀。由于進(jìn)行了周密的可靠性設(shè)計，使得儀表具有良好的電磁兼容性和可靠性。
〖儀表能對下列流體進(jìn)行準(zhǔn)確的聯(lián)機(jī)運算〗
蒸 汽 …… 根據(jù)表內(nèi)存貯的水蒸汽表測量蒸汽的質(zhì)量流量和熱量流量；
一般氣體 …… 溫度、壓力補(bǔ)償測量標(biāo)準(zhǔn)體積流量和質(zhì)量流量，包括濕氣體的干部分流量計算和“壓縮系數(shù)”（Z）補(bǔ)償；
液 體 …… 溫度補(bǔ)償或密度補(bǔ)償測量標(biāo)準(zhǔn)體積流量和質(zhì)量流量.
2．功能特點
■ 可接受以下幾種輸入信號
（1） 測定流量輸入信號
模擬流量信號（Al1）：差壓或線性流量信號（4-20mA DC或0-10mA DC）
頻率流量信號（f）：1-10，000Hz
（2） 測定壓力/密度輸入信號（Al2）
壓力或密度變送器模擬信號（4-20mA DC或0-10mA DC）。
（3） 測定溫度輸入信號
熱電阻Pt100或者K、E分度熱電偶信號。
Al1、Al2模擬輸入信號可分別是4-20mA DC或0-10mA DC，可編程無需變更硬件。
■ 可提供變送器+24V DC、+12V DC供電電源（有短路保護(hù)功能），以簡化系統(tǒng)、節(jié)省投資。
■ 可提累積量，瞬時量，溫度，壓力等的上下限報警功能，以及累積量脈沖輸出功能。
■ 簡單的容錯功能：溫度、壓力/密度補(bǔ)償測量信號異常時，用對應(yīng)的手動設(shè)定值進(jìn)行補(bǔ)償運算。
■ 儀表時鐘和定時自動抄表功能為計量管理帶來了方便。
■ 豐富的自診斷功能使儀表更易使用和維護(hù)。
■ 密碼設(shè)定可防止未經(jīng)授權(quán)的人員改變已設(shè)定的數(shù)據(jù)。
■ 儀表內(nèi)部不設(shè)任何電位器、編碼開關(guān)等可調(diào)器件，從而提高儀表的耐振性、穩(wěn)定性和可靠性。
■ 特殊設(shè)計的WDT電路、上電復(fù)位電路和斷電數(shù)據(jù)保護(hù)電路確保儀表通電運行正常，斷電數(shù)據(jù)不丟失。斷電數(shù)據(jù)保護(hù)不用后備電池，保護(hù)時間10年。
■ 能與上位計算機(jī)進(jìn)行數(shù)據(jù)通訊，組成能源計量網(wǎng)絡(luò)系統(tǒng)。
■ 除了常規(guī)的溫度補(bǔ)償、壓力補(bǔ)償、密度補(bǔ)償、溫度壓力補(bǔ)償外，該表還可對：
·一般氣體的“壓縮系數(shù)”（Z）進(jìn)行補(bǔ)償；
·流量系數(shù)非線性進(jìn)行補(bǔ)償,協(xié)議流量上下限功能；
·差壓式流量計流束膨脹系數(shù)進(jìn)行補(bǔ)償；
·特別是該表在蒸汽流量測量、濕氣體的干部分流量測量方面十分完善。
■ 采用組態(tài)方式工作，一臺流量積算儀具備以上所有功能。對用戶來說，無需知道工況參數(shù)、傳感器參數(shù)就可選用本表解決各種流量測量問題。
3．主要技術(shù)指標(biāo)
■ 測定輸入信號
（1） 測定流量輸入信號
模擬流量信號（Al1）：
4-20mA DC或0-10mA DC，鍵盤設(shè)定選擇。
提供+24VDC外供電源，用于二線制4-20mADC變送器供電，負(fù)載能力為30mA,帶過流保護(hù)。
頻率流量信號（f）：
波形：矩形、正弦、三角波形。
幅值：低電平0-2V，高電平5-24V（可根據(jù)用戶要求）。
頻率：1-10，000Hz。
輸入電阻：5KΩ。
提供+24VDC和12VDC獨立外供電源，用于頻率式流量變送器供電，頻率流量信號輸入與主機(jī)隔離, 二者選一,保證負(fù)載能力為100mA,帶過流保護(hù)。
（2） 測定壓力/密度輸入信號（Al2）
4-20mA DC或0-10mA DC，鍵盤設(shè)定選擇。
提供+24VDC外供電源，用于二線制4-20mADC變送器供電，負(fù)載能力為30mA,帶過流保護(hù)。
（3） 測定溫度輸入信號
熱 電 阻；Pt100分度 三線制輸入，單線電阻≤10Ω
熱 電 偶：K、E分度等
溫度范圍：0-500℃
■模擬變送輸出信號
4-20mA DC或0-10mA DC，鍵盤設(shè)定選擇,可以選擇流量,壓力或溫度等信號變送輸出.
負(fù)載電阻：0-500Ω（4-20mA DC）
0-1000Ω（0-10mA DC）
數(shù)據(jù)更新周期：≤0.3S
■ 報警繼電器觸點容量:AC220V 3A或24V 5A(阻性負(fù)載)
■ 基本誤差
頻率信號輸入：讀數(shù)的0.1%
溫度信號輸入：±0.3℃（t≤300℃時）
讀數(shù)的0.2%（t﹥300℃時）
電壓電流輸入：滿量程的±0.1%
電 流 輸 出：滿量程的±0.2%
補(bǔ)償后流量顯示；滿量程的±0.2%
■ 補(bǔ)償范圍
蒸汽： 壓力 0.1-22MPa abs
溫度 0-374℃（飽和蒸汽）100-560℃（過熱蒸汽）
一般氣體： 壓力 任意
溫度 -200-560 ℃
■ 通訊接口：EIA RS-485串行接口（光電隔離）
通訊速率：可選（9600、4800波特率） 傳輸介質(zhì)；雙絞線
■ 斷電數(shù)據(jù)保護(hù)時間：10年
■ 交流電源：220V+10%-15%，50Hz±5% 功耗：小于8W
■ 直流電源：24V
+10%-15% 功耗：小于8W
4.流量積算儀選型表：
|
型 號
|
說 明
|
| DHXMJ |
× |
× |
× |
× |
× |
× |
× |
× |
|
| 補(bǔ)償信號類型 |
N |
無補(bǔ)償 |
| P |
熱電阻PT100，壓力變送器 |
| K |
熱電偶K分度，壓力變送器 |
| E |
熱電偶E分度，壓力變送器 |
| I |
溫變4～20 mA，壓力變送器 |
| 變送輸出 |
0 |
無 |
| 1 |
4～20 mA |
| 2 |
1～5V |
| 3 |
0～10mA |
| 4 |
0～5V |
| 報警輸出功能 |
0 |
無 |
| 1 |
有二位報警,無累積量脈沖輸出 |
| 2 |
無報警, 有累積量脈沖輸出 |
| 3 |
有二位報警,有累積量脈沖輸出 |
| 通訊功能 |
|
無 |
| T1 |
com1為RS485，無com2 |
| T2 |
com1為RS232，無com2 |
| T3 |
com1，com2都為RS485 |
| T4 |
com1，com2都為RS232 |
| T5 |
com1為RS485，com2為RS232 |
| 特殊功能 |
|
無 |
| R |
帶無紙記錄功能 |
| 供電方式 |
|
交流220V |
| D |
直流24V |
| 外形尺寸（寬*高*深） |
0 |
160 mm×80 mm×88mm（普通端子） |
| 1 |
80 mm×160 mm×88mm（普通端子） |
| 2 |
96 mm×96 mm×112mm（普通端子） |
| A |
160 mm×80 mm×150mm（插拔端子） |
| B |
80 mm×160 mm×150mm（插拔端子） |
|
注:
1.流量輸入信號可選擇電流輸入或電壓脈沖輸入，且分別帶有隔離的24V和12V配電；
2.當(dāng)外形尺寸選擇為普通端子時，com2和累計量脈沖輸出功能只能選其一；
3.在補(bǔ)償信號類型選擇時，若選擇為插拔端子，可以編程切換所列溫度信號類型，若選擇為普通端子，
在 P(K，E)與 I 之間切換時需要使用內(nèi)部跳線。
|
DHXMJN01T1,DHXMJP01T1,DHXMJK01T1,DHXMJE01T1,DHXMJI01T1,
DHXMJN11T1,DHXMJP11T1,DHXMJK11T1,DHXMJE11T1,DHXMJI11T1,
DHXMJN21T1,DHXMJP21T1,DHXMJK21T1,DHXMJE21T1,DHXMJI21T1,
DHXMJN31T1,DHXMJP31T1,DHXMJK31T1,DHXMJE31T1,DHXMJI31T1,
DHXMJN41T1,DHXMJP41T1,DHXMJK41T1,DHXMJE41T1,DHXMJI41T1,
DHXMJN02T1,DHXMJP02T1,DHXMJK02T1,DHXMJE02T1,DHXMJI02T1,
DHXMJN12T1,DHXMJP12T1,DHXMJK12T1,DHXMJE12T1,DHXMJI12T1,
DHXMJN22T1,DHXMJP22T1,DHXMJK22T1,DHXMJE22T1,DHXMJI22T1,
DHXMJN32T1,DHXMJP32T1,DHXMJK32T1,DHXMJE32T1,DHXMJI32T1,
DHXMJN42T1,DHXMJP42T1,DHXMJK42T1,DHXMJE42T1,DHXMJI42T1,
DHXMJN03T1,DHXMJP03T1,DHXMJK03T1,DHXMJE03T1,DHXMJI03T1,
DHXMJN13T1,DHXMJK13T1,DHXMJE13T1,DHXMJI13T1,
DHXMJN23T1,DHXMJP23T1,無錫昌林，DHXMJK23T1,DHXMJE23T1,DHXMJI23T1,
DHXMJN33T1,DHXMJP33T1,DHXMJK33T1,DHXMJE33T1,DHXMJI33T1,
DHXMJN43T1,DHXMJP43T1,DHXMJK43T1,DHXMJE43T1,DHXMJI43T1,
DHXMJN00T2,DHXMJP00T2,DHXMJK00T2,DHXMJE00T2,DHXMJI00T2,
DHXMJN10T2,DHXMJP10T2,DHXMJK10T2,DHXMJE10T2,DHXMJI10T2,
DHXMJN20T2,DHXMJP20T2,DHXMJK20T2,DHXMJE20T2,DHXMJI20T2,
DHXMJN30T2,DHXMJP30T2,DHXMJK30T2,DHXMJE30T2,DHXMJI30T2,
DHXMJN40T2,DHXMJP40T2,DHXMJK40T2,DHXMJE40T2,DHXMJI40T2,
DHXMJN01T2,DHXMJP01T2,DHXMJK01T2,DHXMJE01T2,DHXMJI01T2,
DHXMJN11T2,DHXMJP11T2,DHXMJK11T2,DHXMJE11T2,DHXMJI11T2,
DHXMJN21T2,DHXMJP21T2,DHXMJK21T2,DHXMJE21T2,DHXMJI21T2,
DHXMJN31T2,DHXMJP31T2,DHXMJK31T2,DHXMJE31T2,DHXMJI31T2,
DHXMJN41T2,DHXMJP41T2,DHXMJK41T2,DHXMJE41T2,DHXMJI41T2,
DHXMJN02T2,DHXMJP02T2,DHXMJK02T2,DHXMJE02T2,DHXMJI02T2,
DHXMJN12T2,DHXMJP12T2,無錫昌林，DHXMJE12T2,DHXMJI12T2,
DHXMJN22T2,DHXMJP22T2,DHXMJK22T2,DHXMJE22T2,DHXMJI22T2,
DHXMJN32T2,DHXMJP32T2,DHXMJK32T2,DHXMJE32T2,DHXMJI32T2,
DHXMJN42T2,DHXMJP42T2,DHXMJK42T2,DHXMJE42T2,DHXMJI42T2,
DHXMJN03T2,DHXMJP03T2,DHXMJK03T2,DHXMJE03T2,DHXMJI03T2,
DHXMJN13T2,DHXMJP13T2,DHXMJK13T2,DHXMJE13T2,DHXMJI13T2,
DHXMJN23T2,DHXMJP23T2,DHXMJK23T2,DHXMJE23T2,DHXMJI23T2,
DHXMJN33T2,DHXMJP33T2,DHXMJK33T2,DHXMJE33T2,DHXMJI33T2,
DHXMJN43T2,DHXMJP43T2,DHXMJK43T2,DHXMJE43T2,DHXMJI43T2,
DHXMJN00T3,DHXMJP00T3,DHXMJK00T3,DHXMJE00T3,DHXMJI00T3,
DHXMJN10T3,DHXMJP10T3,DHXMJK10T3,DHXMJE10T3,DHXMJI10T3,
DHXMJN20T3,DHXMJP20T3,DHXMJK20T3,DHXMJE20T3,DHXMJI20T3,
DHXMJN30T3,DHXMJP30T3,DHXMJK30T3,DHXMJE30T3,DHXMJI30T3,
DHXMJN40T3,DHXMJP40T3,DHXMJK40T3,DHXMJE40T3,DHXMJI40T3,
DHXMJN01T3,DHXMJP01T3,DHXMJK01T3,DHXMJE01T3,DHXMJI01T3,
DHXMJN11T3,DHXMJP11T3,DHXMJK11T3,DHXMJE11T3,DHXMJI11T3,
DHXMJN21T3,DHXMJP21T3,DHXMJK21T3,DHXMJE21T3,DHXMJI21T3,
DHXMJN31T3,DHXMJP31T3,無錫昌林，DHXMJK31T3,DHXMJE31T3,DHXMJI31T3,
DHXMJN41T3,DHXMJP41T3,DHXMJK41T3,DHXMJE41T3,DHXMJI41T3,
DHXMJN02T3,DHXMJP02T3,DHXMJK02T3,DHXMJE02T3,DHXMJI02T3,
DHXMJN12T3,DHXMJP12T3,DHXMJK12T3,DHXMJE12T3,DHXMJI12T3,
DHXMJN22T3,DHXMJP22T3,DHXMJK22T3,DHXMJE22T3,DHXMJI22T3,
DHXMJN32T3,DHXMJP32T3,DHXMJK32T3,DHXMJE32T3,DHXMJI32T3,
DHXMJN42T3,DHXMJP42T3,DHXMJK42T3,DHXMJE42T3,DHXMJI42T3,
DHXMJN03T3,DHXMJP03T3,DHXMJK03T3,DHXMJE03T3,
DHXMJN13T3,DHXMJP13T3,DHXMJK13T3,DHXMJE13T3,DHXMJI13T3,
DHXMJN23T3,DHXMJP23T3,DHXMJK23T3,DHXMJE23T3,DHXMJI23T3,
DHXMJN33T3,DHXMJP33T3,DHXMJK33T3,DHXMJE33T3,DHXMJI33T3,
DHXMJN43T3,DHXMJP43T3,DHXMJK43T3,DHXMJE43T3,DHXMJI43T3,
DHXMJN00T4,DHXMJP00T4,DHXMJK00T4,DHXMJE00T4,DHXMJI00T4,
DHXMJN10T4,DHXMJP10T4,無錫昌林，DHXMJK10T4,DHXMJE10T4,DHXMJI10T4,
DHXMJN20T4,DHXMJP20T4,DHXMJK20T4,DHXMJE20T4,DHXMJI20T4,
DHXMJN30T4,DHXMJP30T4,DHXMJK30T4,DHXMJE30T4,DHXMJI30T4,
DHXMJN40T4,DHXMJP40T4,DHXMJK40T4,DHXMJE40T4,DHXMJI40T4,
DHXMJN01T4,DHXMJP01T4,DHXMJK01T4,DHXMJE01T4,DHXMJI01T4,
DHXMJN11T4,DHXMJP11T4,DHXMJK11T4,DHXMJE11T4,DHXMJI11T4,
DHXMJN21T4,DHXMJP21T4,DHXMJK21T4,DHXMJE21T4,DHXMJI21T4,
DHXMJN31T4,DHXMJP31T4,DHXMJK31T4,DHXMJE31T4,DHXMJI31T4,
DHXMJN41T4,DHXMJP41T4,DHXMJK41T4,DHXMJE41T4,DHXMJI41T4,
DHXMJN02T4,DHXMJP02T4,DHXMJK02T4,DHXMJE02T4,DHXMJI02T4,
DHXMJN12T4,DHXMJP12T4,DHXMJK12T4,DHXMJE12T4,DHXMJI12T4,
DHXMJN22T4,DHXMJP22T4,DHXMJK22T4,DHXMJE22T4,DHXMJI22T4,
DHXMJN32T4,DHXMJP32T4,DHXMJK32T4,DHXMJE32T4,DHXMJI32T4,
DHXMJN42T4,DHXMJP42T4,DHXMJK42T4,DHXMJE42T4,DHXMJI42T4,
DHXMJN03T4,DHXMJP03T4,DHXMJK03T4,DHXMJE03T4,DHXMJI03T4,
DHXMJN13T4,DHXMJP13T4,DHXMJK13T4,DHXMJE13T4,
DHXMJN23T4,DHXMJP23T4,DHXMJK23T4,DHXMJE23T4,DHXMJI23T4,
DHXMJN33T4,DHXMJP33T4,DHXMJK33T4,DHXMJE33T4,DHXMJI33T4,
DHXMJN43T4,DHXMJP43T4,DHXMJK43T4,DHXMJE43T4,DHXMJI43T4,
DHXMJN00T5,DHXMJP00T5,DHXMJK00T5,DHXMJE00T5,DHXMJI00T5,
DHXMJN10T5,DHXMJP10T5,DHXMJK10T5,DHXMJE10T5,DHXMJI10T5,
DHXMJN20T5,DHXMJP20T5,無錫昌林，DHXMJK20T5,DHXMJE20T5,DHXMJI20T5,
DHXMJN30T5,DHXMJP30T5,DHXMJK30T5,DHXMJE30T5,DHXMJI30T5,
DHXMJN40T5,DHXMJP40T5,DHXMJK40T5,DHXMJE40T5,DHXMJI40T5,
DHXMJN01T5,DHXMJP01T5,DHXMJK01T5,DHXMJE01T5,DHXMJI01T5,
DHXMJN11T5,DHXMJP11T5,DHXMJK11T5,DHXMJE11T5,DHXMJI11T5,
DHXMJN21T5,DHXMJP21T5,DHXMJK21T5,DHXMJE21T5,DHXMJI21T5,
DHXMJN31T5,DHXMJP31T5,DHXMJK31T5,DHXMJE31T5,DHXMJI31T5,
DHXMJN41T5,DHXMJP41T5,DHXMJK41T5,DHXMJE41T5,DHXMJI41T5,
DHXMJN02T5,DHXMJP02T5,DHXMJK02T5,DHXMJE02T5,DHXMJI02T5,
DHXMJN12T5,DHXMJP12T5,DHXMJK12T5,DHXMJE12T5,DHXMJI12T5,
DHXMJN22T5,DHXMJP22T5,DHXMJK22T5,DHXMJE22T5,DHXMJI22T5,
DHXMJN32T5,DHXMJP32T5,DHXMJK32T5,DHXMJE32T5,DHXMJI32T5,
DHXMJP42T5,DHXMJK42T5,DHXMJE42T5,DHXMJI42T5,
DHXMJN03T5,DHXMJP03T5,無錫昌林，DHXMJK03T5,DHXMJE03T5,DHXMJI03T5,
DHXMJN13T5,DHXMJP13T5,DHXMJK13T5,DHXMJE13T5,DHXMJI13T5,
DHXMJN23T5,DHXMJP23T5,DHXMJK23T5,DHXMJE23T5,DHXMJI23T5,
DHXMJN33T5,DHXMJP33T5,DHXMJK33T5,DHXMJE33T5,DHXMJI33T5,
DHXMJN43T5,DHXMJP43T5,DHXMJK43T5,DHXMJE43T5,DHXMJI43T5,