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E-mail
hnfrep@163.com
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Phone
13611654820
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Address
Building 3, No. 999 Dongye Road, Sijing Town, Songjiang District, Shanghai
Product Categories
Dalk (Shanghai) Instrument Equipment Co., Ltd
Hebei Online Sewage pH Meter
NegotiableUpdate on 05/11
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Overview
Sewage online pH meter - pH3110, can continuously measure and control the pH value of sewage, suitable for urban sewage treatment plants, chemical industry, printing and dyeing, papermaking, pharmaceuticals, electroplating, and environmental protection fields. Based on the environment and characteristics of the water industry, combined with international power supply standards and electrical design specifications for special environments, the power supply supports 23V~230VAD/DC power supply.
Product Details
Sewage online pH meter pH3110 features:
1. The factory standard configuration is a Chinese interface, language menu, and can switch between Chinese and English.
2. It can measure pH/ORP, current output, and digital communication.
3. The temperature can be set to automatic compensation or manual compensation.
4. High limit alarm and low limit alarm dual circuit double throw relay, with adjustable hysteresis.
5. The current transmission port is in fully isolated mode, with a maximum loop resistance greater than 500 Ω.
6. Communication port high-speed isolation mode, maximum speed 115200kps, maximum station address 99.
7. LCD backlight defaults to light sensing mode; Energy saving mode can be selected, with automatic delayed shutdown.
8. High performance CPU with excellent electromagnetic compatibility.
9. Password management function to prevent misoperation by non professionals.
Technical Specifications:
| measurement range | pH(0–14pH); ORP(-1500-1500mV) |
| accuracy | ±0.02pH; ±2mV |
| resolution | 0.01pH; 1mV |
| stability | ≤ 0.03 pH/24 hours; ≤ 3mV/24 hours |
| PH standard solution | 4.01/6.86/9.18 |
| display mode | 192 * 96 dot matrix LCD |
| Temperature type | Default NTC10K (3950), configurable PT1000 |
| temperature compensation | 0~60 ℃ manual/automatic (NTC10K) |
| signal output | 4-20mA isolation protection output maximum loop resistance>500 Ω |
| alarm output | One set of high and low limit alarm contacts each (3A/250VAC) |
| relay output | Normally Open |
| digital communication | MODBUS-RTU：8，none，1 |
| Mailing Address | 1~99, load resistor needs to be externally connected |
| power supply | 85V~256VAC |
| environmental conditions | Temperature: -10~60 ℃, humidity: ≤ 75% |
| Overall dimensions | 96x96x70mm (length x width x depth) |
| cutout size | 92x92mm |
| Instrument weight | 290g |
Instructions for Use:
1. To make the measurement more accurate, the instrument needs to calibrate the electrodes regularly. The shelf life of glass electrodes is one year. After one year from the factory, their performance will be affected regardless of whether they are used or not, and they should be replaced in a timely manner.
2. The pH electrode used for the first time or for long-term disuse must be soaked in a 3mol/L KCl solution for 24 hours before use.
3. If any abnormal or damaged instrument is found during use, please contact the dealer and do not repair it yourself.
4. This instrument has only one electrode input terminal. When selecting pH mode, a pH electrode should be installed, and when selecting ORP mode, an ORP electrode should be installed.
5. Please preheat the instrument for about 20 minutes before calibration work.
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