This multi-functional electricity meter can measure voltage, current, power, battery charging capacity, time and other physical quantities. At the same time, it can also set a variety of protection fu
This multi-functional electricity meter can measure voltage, current, power, battery charging capacity, time and other physical quantities. At the same time, it can also set a variety of protection functions, such as overvoltage protection, overcurrent protection, over-power protection, overcharge capacity protection, time limit protection and undervoltage protection. It has many measurable parameters and wide protection range, which is the characteristic of this meter. The instrument adopts two groups of LED nixie tubes to display the measured data at the same time. It can be flexibly switched to display different physical quantities in use.
The instrument is very suitable for various applications that need to monitor the output voltage and current, charge and discharge the battery, and meet the voltage and current range.
The color option indicates the model, high-power series
90100p, maximum voltage 90V, maximum current 100A
9050p, maximum voltage 90V, maximum current 50A
90200p, maximum voltage 90V, maximum current 200A
Special note:
High power series electric meters are connected with external power expansion board. When switching between 2-wire system and 3-wire system, it is only necessary to change the position of "2WIRE" and "3wire" short routes on the power board. The specific operation method is shown in the figure below:
2-wire system, short-circuit cap at 2WIRE position, wiring diagram
3线制的状态，短路帽在3Wire位置处，带保护功能接法需自备12/24V继电器。
继电器电压和外部供电电压一样，如供电一体直接选12V的就行，为常开继电器。
图片实拍：
双四位数码管显示，上下可分别显示数据
带关断型号，(可以设置过压、过流、过充电、过功率、超时、欠压值等关断输出、具体设置参考下面说明)开机默认是关断的，即表头控制无输出，下排数码管显示“-OFF”，如下图所示：
2.按下OUT按键，输出接通，下排数码管显示当前电流值
3，按向上按键，切换上排数码管显示项目，按向下按键切换下排数码管显示项目，非常灵活,想怎么显示就怎么显示：
可计算使用的电池容量，单位AH
一、主要特点：
? Dual display of voltage and current, and can also switch the display power, charging capacity and time? With P series at the end and output shutdown function key, it can flexibly open or cut off the output? Very flexible online calibration function, users can calibrate the voltage and current value by themselves? The factory reset function is newly added, so that the user can quickly restore the normal value even after adjusting the disorder
? 4-digit led nixie tube, 3-digit effective display accuracy? It has the protection functions of overvoltage, undervoltage, overcurrent, over power, overcharge and timeout
? If the appropriate load resistance is connected to the output terminal and the undervoltage value is set, the machine can automatically detect the battery capacity or be used as a discharge instrument
? This version adds time control, which can set timeout to avoid overcharging
二、技术指标：
1.电压电流显示方式： 4位LED，3位数字+ 1位显示单位
2.显示分辨率： 0.01V，0.01A，0.01W，0.01AH，0.01H
3.电压精确度： ±1％+2个字
4.电流精确度： ±2％+5个字
5.测量速率: 5次/秒
6.保护类型： OCP，OAH，OVP，OPP，OFT，LOP
7.保护设定范围：
过流保护OCP： 0.01~上限
过充电容量保护OAH： 0.01AH~999AH
过压保护OVP： 0.01V~99.9V
欠压保护LOP： 0.01V~99.9V
过功率保护OPP： 0.01W~9.99kW（kW显示为P.)
超时保护OFT： 0.01小时～99.9小时
8.显示窗尺寸：67(mm) X 32(mm)；产品尺寸： 79(mm) X 43(mm) X 25(mm)
9.安装孔开孔尺寸：76.5(mm) X 39.2(mm)
10.注意：只能测试单向电流，没法测量负电流、反向电流。
仪表后面板
四、使用说明：
The instrument has practical functions and is easy to use. The first four items below are the basic use methods, and the fifth item is the introduction of commissioning mode.
1. Connect the input and output lines correctly. Note that the wiring cannot be reversed,
2. Ensure that the input voltage is within the voltage range that the instrument can withstand. After power on, the upper nixie tube displays the voltage value by default, and the lower nixie tube displays the current value by default (if it is with off, the lower default display is - off, indicating the default off).
3. For the model without shutdown, the voltage and current of the signal are displayed directly. For the model with shutdown, it is off by default. If you confirm that the voltage is correct, you can press the key to output the voltage, and the input voltage is added to the load.
4. Press the up button to select the above nixie tube display items, and press the down button to select the following nixie tube display items, which is very flexible and convenient to use.
5. Under any of the following circumstances, you can enter the debugging mode for setting:
? The default startup of this machine is off. If it needs to be set as startup, it is on by default.
? Specific values of overvoltage protection (OVP), undervoltage protection (LOP), overcurrent protection (OCP), over power protection (OPP), overcharge capacity protection (OAH), timeout protection (OFT), etc. need to be enabled.
? When there is a certain error in the measured voltage or current value, it needs to be calibrated.
? When you adjust the voltage and current parameters disorderly, you need to restore to the factory setting. The way to enter the debugging mode is to press and hold the key in the power on state. When the nixie tube above displays "0-u", it indicates that it has entered the debugging mode. At this time, press the key briefly, and the display setting content of the nixie tube above will change from 0 to 10, indicating different functions to be set. These functions will be described in detail below:
1. "0-u" refers to the calibration of the voltage measurement value. The nixie tube below displays the current measured voltage value. We only need to calibrate the voltage values of two points at the high and low ends. Generally, the high voltage point can be taken as 30V, the low voltage point can be taken as 10V, and the boundary standard between the high point and the low point is 20V. If it is higher than 20V, it is considered as the voltage at the high point of calibration, and if it is lower than 20V, it is considered as the voltage at the low point of calibration, At this time, you can compare the standard voltmeter. Press up to increase the voltage measurement value, and press down to reduce the voltage measurement value. The two points sometimes affect each other. After 2-3 back and forth adjustments, you can ensure the accuracy.
2. "1-C" refers to the calibration of the measured current value. The nixie tube below shows the current measured current value. Similarly, we only need to calibrate the current values of the two points at the high and low ends. The high current point can generally be taken as 3a, the low current point can be taken as 0.1A, and the boundary standard between the high point and the low point is 2A. If it is higher than 2a, it is considered that the current is at the high point of calibration, and if it is lower than 2a, it is considered that the current is at the low point of calibration, At this time, you can compare the standard ammeter. Press up to increase the current measurement value and press down to reduce the current measurement value. The two points sometimes affect each other. After 2-3 times of back and forth adjustment, you can ensure the accuracy.
3. If the parameters need to be saved after adjustment, it can be adjusted to "2-es". At this time, the nixie tube below displays "- N -", indicating that the parameters are not saved. You can press up or down to display "- Y -", and then press it to automatically exit the debugging mode and save the parameters. 4. "3-R" is fully restored to the factory setting. This function is mainly used when the user messes up the voltage and current values and wants to return to the initial value, press up or down to "- Y -" and then press down to restore the factory setting. The following settings are valid for models with P:
1. "4-on" is to set whether the startup is on or not. The default display is "- N -" which means it is not on. Press up or down to display "- Y -" and then save the parameters as described in Item 3) above.
2. "5-ov" to "10-L" indicate different protection setting values. The default value is 0, which means that it is not enabled. If it is set to a non-0 parameter, the function will be enabled. Press up to increase the setting value, press down to decrease the setting value, and long press to quickly adjust. After adjustment, just follow the parameters described in Item 3) above. The following is the function comparison table of each position:
6. For the use of various protections, the following is a detailed introduction:
? If the OCP value is set to 1.00a, when the output current exceeds 1a, the machine will automatically cut off the output. At the same time, the screen shows that the protection type is OCP. Press any key to return to normal.
? If the OAH value is set to 4.00ah, when the output power exceeds 4ah, the machine will automatically cut off the output. At the same time, the screen shows that the protection type is OAH. It should be noted that the power value is an accumulated value. Once it exceeds, it can no longer be output. At this time, you can press the down key for a long time to reset the power value and time value.
? If the OVP value is set to 10.0v, when the output voltage exceeds 10V, the machine will automatically cut off the output and give an alarm at the same time.
? If the Lop value is set to 10.0v, when the output voltage is lower than 10V, the machine will automatically cut off the output and give an alarm at the same time. This function is more suitable for using the instrument as a battery discharge instrument. See the following special case for specific operation.
? If the OPP value is set to 15.0w, when the output power exceeds 15W, the machine will automatically cut off the output and give an alarm at the same time.
? If the oft value is set to 1.00h, if the output time exceeds 1 hour, the machine will automatically cut off the output and give an alarm. It needs to be output again. It needs to press the reset timer for a long time.
7. If you have made some protection settings for the machine and want to immediately return to the default not enabled (0 state), you can long press the up button in the normal mode.
五、简单问答：
问：9050p带板子吗？
答：大功率系列的表如50A、100A，标配功率扩展板。
6、 Precautions:
■ do not exceed the voltage and current range of the instrument, otherwise the instrument will be damaged
■ the positive and negative electrodes shall not be connected wrongly, and the reverse connection shall not be measured correctly
■ sometimes the product may be upgraded and improved, and some components may be changed. If there is no change in product parameters and characteristics, no other notice will be given.
七、发货清单：
1.VAM电压电流表 1台
2.说明书
