☆ test method:
1. Preparation of anaerobic water:
Add 250ml of distilled water into a 500ml beaker, then add 500mg of sodium sulfite and a small amount of divalent cobalt salt, such as cobalt oxide hexahydrate, as the catalyst, stir it evenly and use it.
2. Preparation of saturated dissolved oxygen water:
Inject 80% of the volume of fresh distilled water into the constant temperature bath of the verification device of the dissolved oxygen tester, float the porous plastic floating cover on the water surface, adjust the water temperature to the temperature required for verification, turn on the circulating pump to stir the water sample, add a bubbler (i.e. air pump) to aerate the water continuously for more than 60min, stop aeration, and the water can be used for verification after it is still for 30min.
3. Test structure diagram:
| Model | RJY-10 |
| Resolving power | 0.01℃ |
| Temperature | 0-100℃ |
| Temperature fluctuation | ±0.05℃ |
| Temperature uniformity | ＜0.2℃ |
| Slot opening | φ170mm |
| Groove depth | 150mm |
| Input voltage | AC220V（50Hz） |
| Input power | 0.9kw |
| Market value | 21800元 |
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Q:How to consult interested products？
A:(1)Telephone consultation（Call18921899789，15151007235，18932299088,The sales department answered the phone）； Telephone contact of Technology Department：18932292806（Wang Gong）Direct communication。 (2)Company fixed line：86 0515 81991818Communicate with us (3) Mailbox：jstenlin17@163.com。
Q:Is there any after-sales guarantee？
A:Don't worry about this. Jiangsu Tianling Instrument Co., Ltd. is an enterprise specializing in the research, development, production and sales of laboratory instruments and equipment. The company is committed to providing users with highly skilled and reliable laboratory instruments to meet the needs of users. The company has a R & D team composed of domestic high-quality talents, a relatively complete management system and a nationwide sales and service network.
Q:After sales process？
A:In case of product accessories and hardware problems, we can replace them for you free and send them by express mail. In case of software system problems, please contact the after-sales department in time. We will respond within 1 hour and provide you with high-quality solutions.
Q:How to deliver？
A:The logistics companies selected by our company have signed long-term cooperation agreements and guaranteed prices. The equipment is directly delivered to the door, and you do not need to go to the logistics point to pick up the goods. Moreover, you do not need to bear the responsibility for the customers with damaged equipment. The factory will directly replace the equipment for you, and the damage compensation will be settled through negotiation between the factory and the logistics company.
Q:What is the purchase process？
A:(1)It involves professional equipment and non-standard customization, so special personnel will answer the phone and transfer it to professional sales technical engineers for interactive communication (2)The sales engineer sends the product configuration list and the final price by email (3)Sign formal contracts, arrange orders, arrange delivery, and guide installation and commissioning (4)Technical guidance, professional training, technical Q & A, accessories ordering (5)After sales service and product upgrade
National free consultation hotline：400-928-3898
Mailbox：jstenlin17@163.com
Address: No. 4, Zhonglian Road, Baocai Industrial Park,
Yandu District, Yancheng City.
Welcome to Jiangsu Tianling Instrument Co., Ltd.
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