Company Info
Shanghai Longway Optical Instruments Co., Ltd. is one of the professional enterprises of developing, manufacturing and selling optical microscopes in China.
Since establishment in 1978, we obtained abundant experience of designing, production and management of microscopes, which form a complete system of quality control. In 1993, we obtained the Export License for Machinery and Electrical Products from the government. In 2000, we passed ISO9002 quality system. In 2001, our company was awarded... view more
Company Profile
Total No. of Staff:
101 – 500 People
No. of R&D Staff:
5 – 10 People
No. of Engineers:
5 – 10 People
Export Ratio:
61% – 70%
OEM Services Provided:
YES
Payment Terms:
T/T, WU
Business Type:
Manufacturer
Quality Certificate:
CE, ISO9001
Main Export Markets:
North America, Western Europe, Eastern Europe, South America, Southeast Asia, Eastern Asia, Mid East, Oceania, Africa
Competitive Advantage:
good quanlity, competitive price
Basic Info.
Brand Name:LONGWAY & YUEPING
Model No.:PH-25, PH-3C
Place of Origin: Shanghai
Min.Order: 1 Set/Sets
Means of Transport:Ocean, Air, Land
Supply Capacity
Production Capacity:5000000sets
Delivery Date:5sets
PH Meter
Model:
PH-25, PH-3C
Detailed parameters:
Function:
1. LCD screen
2. manual temperature compensation
3. 1 point or 3 points calibration
4. With our E-201-C type pH combined electrode
Specification
PH-25
PH-3C
Level
0.05
0.01
Measuring Range
pH
(0.00~14.00)pH
pH: (0.00~16.00)pH
mV
(0~1599)mV
mV: 0±1999)mV
Resolution
pH
0.01pH
0.01pH
mV
1mV
1mV
Basic Tolerance
pH
±0.02pH± 1 digit
±0.02pH± 1 digit
mV
±1%FS
±1%FS
Electronic unit input resistance
Not less than 1X1012Ω
Not less than 1X1012Ω
Electronic unit input current
Not less than 1X1012A
Not less than 1X1012A
Stability
(±0.05pH±1 digit)/3h
(±0.05pH±1 digit)/3h
Temperature compensation range
Manual (0.00~60.0)℃
Manual (0.00~60.0)℃
Power source
Digital: DC (12V, 10A)
Digital: DC (12V, 10A)
Size (mm)
220 X 160 X 65
220 X 160 X 65
Net. weight
1.5kg
1.5kg
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Contact Method
Shanghai Longway Optical Instrument Co., Ltd.
Room 802, NO. 2, Lane 2159, Wencheng Road, Songjiang District,
Shanghai,
China (Mainland)
