Product Description Selection of high-quality zirconia detection elements has the characteristics of long life and fast response. • Adopt large-screen dot-matrix liquid crystal display, which can display parameters such as oxygen quantity, temperature, date, time, etc. • Full Chinese man-machine dialogue menu is adopted, which is intuitive and convenient to operate. • Adopting convection-diffusion structure, reducing the influence of flow on measuring trace oxygen. • The instrument has a total of eight ranges from micro to constant, and the range is automatically converted. • The upper and lower limit alarm points can be set arbitrarily within the full range. • With paperless recorder function, automatically record the change curve of oxygen concentration with time. • With automatic storage of measurement data, the storage interval is set by the user. • With 0~10mA or 4~20mA current signal output. • The instrument has a standard RS232C communication port, which can be connected to a serial printer or to achieve two-way communication with a computer Product Parameters Test principle zirconia Display mode 4 bits LED display Test range 0 ~ 10/25.00% O2 Expanded range 0 ~ 10/25/40.00% O2 (oxygen-enriched combustion) Resolution 0.01% Accuracy ≤±1.5%FS Repeatability ≤±1% Response time T90≤30S Analog output 4~20mA.DC(non-isolated output, loaded resistance lower than 500 Ohm) 0~5V.DC(non-isolated output, loaded resistance higher than 10k Ohm) 1 way programmable alarm output (Dry contact type, maximum load 220VAC/2A) Communication Port RS232 (default) or RS485 Calibration mode online one-point calibration Power supply AC220V±10% 50/60Hz Operation temperature Gauge: -10 ~ +50ºC Probe: low-temperature type,0 ~ 350ºC mid-temperature type,0 ~ 700ºC Install Hole Cut Φ50mm ~ Φ90mm Connection way Cable (8 meters for standard equipment) The length of the probe 1 meter in usual (other length customizable) Serving life >3 years (under normal use) Install mode inserting mount and DN65 standard flange for the probe,wall mount for the gauge Detailed Photos FAQ FAQ: Q1: What's your business range? A: We manufacture PH/ORP/EC/DO/Chlorine/Turbinity meter and provide dosing pump, diaphragm pump,dosing system, pressure instrument, flow meter, level meter, dosing system and so on. Q2: How about the quality of the managements? A: We have a complete quality control system , all of our products will be fully pre-inspection by QC departments before shipping to you . We have the certification of ISO,CE we could send the certification test of our company to you. Q3: Can you offer OEM or design services? A: Yes, we have our own design department and production tools. We can make OEM products according to your requirements. Q4: What are your terms of payment and delivery time? A: We could accept T/T, Paypal, Western Union, Credit Assurance. Generally, we will arrange the shipment within 7 days after received payment. Q5: How about warranty? A: 12 months warranty.