详细介绍:
PHS-25型精密PH计PHS-25 precision pH meter
一、性能特征:
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PHS - 25 型 pH 计是一台数字显示 pH 计,它采用蓝色背光、双排数字显示液晶,可同时显示 pH 值、温度值或电位( mV )值。该仪器适用于大专院校、研究院所、环境监测、工矿企业等部门的化验室取样测定水溶液的 pH 值和电位( mV )值,配上 ORP 电极可测量溶液 ORP (氧化-还原电位)值,配上离子选择性电极可测量该电极的电极电位值。
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二、主要技术指标:
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1 、仪器级别: 0.1 级
2 、测量范围: pH 0.00~14.00pH ;
mV 0 ~ ± 1400mV
3 、分辨率: 0.01pH , 1mV , 0.1 ℃
4 、温度补偿范围: 0 ~ 60 ℃ ;
5 、电子单元基本误差: pH ± 0.05pH ;
mV ± 1% ( FS )
6 、仪器基本误差:± 0.1pH ;
7 、电子单元输入电流:不大于 1 × 10 - 11 A
8 、电子单元输入阻抗:不小于 3 × 10 11 Ω
9 、电子单元重复性误差: pH 0.05pH
mV 5mV
10 、仪器重复性误差:不大于 0.05pH
11 、电子单元稳定性:± 0.05pH ± 1 个字 /3h
12 、外形尺寸: 220 × 160 × 65mm ( l × b × h )
13 、重量: 0.3kg
14 、正常使用条件:
a) 环境温度:( 5 ~ 50 )℃
b) 相对湿度:≤ 85%
c) 供电电源: DC6V
d) 无显著的震动;
e) 除地球磁场外无外磁场干扰。
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PHS-25 PHS-25 precision pH meter precision pH meter
A, performance characteristics:
The PHS - 25 type pH is a digital display pH, it uses the blue backlight, double digital display LCD, can display the pH value, temperature value or potential(mV) value. The instrument for laboratory sampling in universities, research institutes, environmental monitoring, industrial and mining enterprises and other departments of the determination of the pH value of the aqueous solution and potential (mV) value, with ORP electrodes can measure the solution ORP (redox potentials) value, with ion selective electrode electrode potential measurement values of the electrode.
Two, the main technical indexes:
1, the instrument level: level 0.1
2, measurement range: pH 0.00~14.00pH;
MV to 0 ± 1400mV
3, resolution: 0.01pH, 1mV, 0.1 ℃
4, temperature compensation range: 0 ~ 60 ℃;
The basic error of 5, electronic unit: pH ± 0.05pH;
MV ± 1% (FS)
The basic error, instrument: 6 ± 0.1pH;
7, the electronic unit input current: less than 1 × 10 - 11 A
8, the electronic unit input impedance: not less than 3 × 1011 Ω
9, the electronic unit repeatability error: pH 0.05pH
MV 5mV
10, the repeatability error of instrument: not more than 0.05pH
11, the electronic unit stability: ± 0.05pH ± 1 words /3h
12, size: 220 x 160 x 65mm (L * b * h)
13, weight: 0.3KG
14, the normal conditions of use:
A) environment temperature: (5 ~ 50) ℃
Relative humidity: ≤ 85% b)
Power supply: DC6V C)
D) no significant vibration;
E) in addition to outside the earth's magnetic field andmagnetic field interference.
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