8000系列氨氮监测仪采用离子选择电极法，传感器由铵离子选择电极、钾离子选择电极和温度电极共同组成一个测量体系，几个参数可以互相修正减少干扰。监测仪可以进行灵活的在线校正，进一步提高测量的准确度。
The 8000 series ammonia nitrogen monitor adopts the ion selective electrode method. The sensor consists of an ammonium ion selective electrode, a potassium ion selective electrode and a temperature electrode to form a measurement system. Several parameters can be mutually corrected to reduce interference. The monitor can perform flexible online calibration to further improve the accuracy of the measurement.
仪表特点：
● 新一代传感器和膜头性能更稳定
● 可自动补偿干扰离子的影响
● 全新保护涂层确保膜头使用寿命更长
● LCD大屏液晶显示
● 中/英文智能菜单操作
● 数据记录/上传功能
● 多种自动标定功能
● 手动或自动温度补偿
● 三组继电器控制开关
● 高限、低限、迟滞量控制
● 4-20mA/RS485多种连接方式
● 同界面显示浓度、温度、电流等
● 可设密码保护防止非工作人员误操作
Instrument Features:
● New generation of sensors and membrane heads are more stable
● Can automatically compensate for the effects of interfering ions
● New protective coating ensures longer life of the membrane head
● LCD large screen LCD display
● Chinese/English smart menu operation
● Data recording / upload function
● Multiple automatic calibration functions
● Manual or automatic temperature compensation
● Three sets of relay control switches
● High limit, low limit, hysteresis control
● 4-20mA/RS485 multiple connection methods
● Same interface to display concentration, temperature, current, etc.
● Password protection can be set to prevent non-workers from mishandling
主要技术参数：
The Main Technical Parameters:
型 号 Model Number
NH8087
测量范围 Measurement range
0～1000 mg/L[NH4-N]；0～1000 mg/L[K+]；
测量原理 Measuring method
离子电极法 Ion electrode
温度范围 Temperature
0～60.0℃
分 辨 率 Accuracy
0.01mg/L；0.1℃
基本误差 Precision
测量值的 5%+0.2mg/L1；±0.3℃；
Measured value 5%+0.2mg/L1；±0.3℃；
温度补偿 Temp compensation
自动或手动 Auto or manual
电流输出 Isolated current
2路4-20mA Two output 4-20mA
通讯输出 Communication
RS485 MODBUS RTU
其它功能 Other Function
数据记录/曲线显示/数据上传 Data record/graphic display/data upload
继 电 器 Alarm relay
三组3A 240VAC 6A 28VDC或120VAC
Three 3A 240VAC/3A 28VDC or 120VAC
供电电源 Power supply
85～265VAC或9～36VDC，功率 power：≤3W
外形尺寸 Dimensions
144*144*118mm
安装方式 Installation
盘装，开孔138*138mm或墙挂式
Dimension of the recess:138x138mmor Wall-hung
防护等级 Protection grade
IP65
工作环境 Working conditions
环境温度：-10～60℃；相对湿度：不大于90%；除地球磁场外周围无强磁场干扰。
Ambient temperature:-10~60℃; relative humidity <90%;no strong magnetic field interference except geomagnetic field.