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 Models 1600 and 1630 Oxygen Controllers

• Model 1630 measures atmospheric oxygen (Model 1600 measures both atmospheric oxygen as well as dissolved oxygen) 
• All controls are programmable from front panel 
• Electrodes virtually maintenance free - no filling solutions or membranes to change 
• Dual four-digit LED displays for process variable, set point 
• Two independent set points (Low-High, High-High, Low-Low) 
• Auxiliary alarm point 
• Standard Outputs:  Set points 1 & 2 - SSR, Alarm-relay
• Optional outputs: Logic, current or voltage 
• Calibration easily adjusted by screwdriver 
• Upper display indicates process value or value of menu item selected 
• Lower display indicates set value or menu item selected
• Both models are supplied with the oxygen sensor with a 5' cable

These oxygen controllers provide economical atmospheric and dissolved oxygen monitoring. The Model 1600's galvanic electrode measures up to 100.0 PPM dissolved oxygen in aqueous solutions, as well as up to 100% concentration in an atmospheric environment. The Model 1630 also features a galvanic electrode for measuring 0-100% atmospheric oxygen only. Both models are supplied with the oxygen electrode with a 5' cable; custom lengths up to 100' may be ordered. The electrodes are totally sealed from the environment. The electrode for the Model 1600 features a low flow rate sensitivity, requiring 0.5 ft/second flow to read dissolved oxygen accurately. No flow is needed when testing atmospheric oxygen. Four security levels are password protected. Both units feature solid-state relays 3.5A up to 240VAC. 

The Model 1600 electrode is manufactured with a gold cathode. The electrode will not be poisoned by H₂S, Cl₂ and SO₂. However, CO₂ will neutralize the electrode's electrolyte. If you are working in a CO₂ atmospheres, select the Model 1630 oxygen controller. These controllers are not intended for use in life-support systems, nor are the controllers 100% fail safe in some modes of operation. Please contact us to determine the suitability of the controllers for your application. 
Specifications

CONTROL FUNCTIONS 

Time Proportioning & Proportional Control Modes: 

• Selectable pre-set tune, self-tune or manual PID, P, PI or PD with reset anti-windup 
• Proportional Band (P): 6 to 9990 counts 
• Integral Time (I): 0.1 to 99.9 minutes or off 
• Derivative Time (D): 0.01 to 99.99 minutes or off 
• Cycle Rate: 2-80 seconds 
• Approach Rate: Off to 99.99
• On-Off Control Mode: Adjustable On/Off Differential, 2 counts to full scale in 1 count steps

Standard Output: Solid state relay 3.5A up to 240VAC or logic output 5 VDC up to 25 mA selectable; total current rating for both will be 3.5A 

Optional Output: 3A up to 250VAC mechanical relay or logic output 5V up to 25 mA selectable; proportional current, non-isolated 0-20 mA into 0-600 ohms maximum. Zero and span programmable to 4-20 mA, 2-12 mA, etc.; proportional voltage, non-isolated 0-10 VDC into 500 ohms minimum (10 mA). Zero and span programmable to 0-1 VDC, 1-5 VDC, 4-7 VDC, etc. 

Standard Set Points: two independent set points can be programmed to be both High, both Low, or one high and one Low. SV = set point variable. Set point one is always displayed. 

Standard Alarms: independent of set point