产品特性
● 测量压力最低可达4KPa
● 根据不同测量介质的防腐要求
可选择多种不同 的膜片
● 仪表可制做成充液耐震型
应用于工作环境有震动的场所
Features
● Minimum pressure is down to 4 KPa
● According to different corrosion-proof reguests,
many types can be selected.
● Liquid filling model can be supplied, applied in the
vibration enrironment.
产品简介
BX/BXN系列膜片电接点压力表采用膜片作为测压敏感元件，并可根据不同的测量介质选用不同材料的膜片。本仪表主要用于工业过程中对气体、液体压力微小压力的测量，尤其适用于腐蚀性粘稠介质（非凝固、非结晶）的微小压力测量，并通过仪表指针的触点与设定指针的触点相接通（断开）控制系统中电路的开关，以达到自动控制和自动报警功能。
PRODUCT OVERVIEW
BX/BXN Diaphragm electric contacts pressure gauge adopts diaphragm as sensitive
element, and it could choose different materials baed on different measure mediums. The
pressure gauge mainly applys to measure the micropressure of gas, liquid in industry
course, especially fits to medium of corrosion and viscidity (non-solidification & non-crystal).The pointer of instrument will make contacts turn on or cut with the contacts of set fingr,causing the cut and turn-on of control system for the purpose of automatic control and alarm.
主要技术参数
仪表类型 普通型、耐震型（充油）
指示仪表直径 φ100mm、φ160mm
指示精度 φ100mm:±1.5%;(±1.6%;)±2.5% φ160mm:±1.5%;（±1.6%）
设定精度 ± 4% ；
接点数量 1个或 2个；
接点材质 ≥ 110V银镍合金，≤ 36V黄金
接点控制方法 见附表
测量范围 正压 0-4kPa至 0~2.5MPa ；负压 -4-0kPa至 -100-0kPa及任何相关正负压联程；
工作压力 静负荷用至测量上限值的 3/4；交变负荷用至测量上限值的 2/3；
短时压力用至上限值
膜片材料 3J1、SUS304、SUS316、SUS316L、喷涂 PTFE
接体材料 SUS304、SUS316、（SUS316L）；
外壳材料 SUS304；
仪表玻璃 有机玻璃、安全型双层玻璃；
外壳防护等级 普通型：IP54 ，耐震型：IP65；
最高工作电压 380V·AC或 220V·DC；
最大电流 1A；
触点功率 30VA；
环境温度 普通型：-40～+70℃；耐震型：-20～+60℃；
耐震型填充液 仪表专用填充液；
连接尺寸 螺纹连接 M20 × 1.5、或约定的特殊要求；法兰连接（按相关标准或约定的特殊要求）。
Main technic index
Type: Standard type,vibration-proof type(oil filled)
Diameter: φ 100mm, φ 160mm
Accuracy: φ 100mm, ± 1.5%; (± 1.6%;)± 2.5% φ 160mm, ± 1.5%, (± 1.6%)
Set accuracy: ± 4%;
Contact points: 1 or 2; ≥ 110V银镍合金，≤ 36V黄金
Contacts control: See attached table
Range: Plus pressure 0-4kpa to 0~2.5MPa Minus pressure -4-0kpa to -100-0kpa and other compound ranges
Working pressure: Steady: 3/4 of full scale value
Fluctuating: 2/3 of full scale value
Short time: full scale value
Diaphragm material: 3J1, SUS304, SUS316, SUS316L,PTFE coated
Connection body: SUS304, SUS316 (SUS316L)
Case material: SUS304
Windows: Organic glass, Safety glass (double deck)
Case protection: Class standard type: IP54 Vibration-proof: IP65
Maximum working voltage: 380V.AC or 220 V.AC
Maximum current: 1A
Contact power: 30VA
Environment temperature: Standard type: -40-+70℃ Vibration-proof type: -20-+60℃
Liquid filling for vibration-proof type oil:Filling liquid for special instrument
Connection: Thread connection M20×1.5, or special requirement Flanged connection (by relative standards
or promised special requirement)
仪表外形尺寸 DIMENSIONS
标准型 Standard style BX(YPXC)
耐震型 Vibration-proof style BXN(YPXCN)
公称尺寸Dimensions mm | 测量范围Range kPa | d mm | B mm | D1 mm | D2 mm | G | H mm | SW mm |
100 | ≤25 | 160 | 88 | 101 | 99 | M20×1.5 或其它规格 Or other specification | 135 | 27 |
160 | 90 | 161 | 159 | 165 | ||||
100 | ≥40 | 100 | 88 | 101 | 99 | 135 | ||
160 | 90 | 161 | 159 | 165 |
附表：电接点开关控制方法 Attached list: switch control method of electric contacts
接点代码 Code of contacts | 接点功能 识别编号 Code title | 接点数量 Quantity | 指针顺时针旋转开关功能 Switch fuction of deasil rotating pointer | 示意图 Sketchmap | 线路图 Ciranit diagram |
单上限 one upper limits | 821.1 | 超过设定点时，接点接通电路，（常开接点） over the setpoint,circuit is turned on (N.O.) | |||
单下限 one lower limits | 821.2 | 1 | 超过设定点时，接点断开电路，（常闭接点） over the setpoint,circuit is cut (N.C.) | ||
单刀双掷 SPDT | 821.3 | SPDT:超过设定点时，接点转换，一个接点接通电路， SPDT:另一个接点断开电路 SPDT: Over the sepoint, contacts transferred, one turned on and the other one cut | |||
双上限 two lower limits | 821.11 | 超过设定点时，接点1 和接点2 都接通电路 over the setpoint,circuit is turned by contact 1 and 2 1 and 2 | |||
双下限 Two lower limits | 821.22 | 超过设定点时，接点1 和接点2 都断开电路 over the setpoint,circuit is cut by co ntact 1 and 2 | |||
常开上下限 N.O.upper and lower limits | 821.21 | 2 | 超过设定时，接点2 断开电路接点1 接通电路 over the setpoint,circuit is cut by contuct 2， turned on by contuct 1 | ||
常闭上下限 N.C.upper and lower limits | 821.12 | 超过设定时，接点2 接通电路接点1 断开电路 over the setpoint,circuit is tumed on by contact 2， cut by contact 1 | |||
单刀双掷 SPDT | 821.33 | 两组SPDT 接点，功能同821.3 Two groups of SPDT, with same function as 821.3 |
说明：1、定货时请按表中规定的开关功能给出相应的接点名称或编号。
2、表中双接点连接导线为：接点2 为下限设定点，接点1 为上限；设定点，接点3 为公共端。
3、表中描述的开关功能是表示：仪表压力指针位于最小刻度值时所具有的开关功能，即压力指针从最小刻度值开始顺时针动时的开关状态，当压力指针逆时针转动时，实现的开关功能相反。
1. When ordering, please specify the name or No. of contacts referring to the table.
2. Leads of single or double contacts: lower limits is contact 2, upper limits setpoint is contact 1, contact 3 is public port.
3. Turn on and cut function details: The table shows the turn on and cut situations as pointer moves deasil, and the function is opposite while the pointer moves widdershins.
