Moore Products 59RF overview
Moore Products 59RF Derivative Relay | Inverse Fast Derivative Action, 1:6 Derivative Gain, 0.005-2.0 Minutes, 0.1-5 Derivative Needle Valve Graduation.Features...
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Manufactured byMoore Products
Product groupModules
DescriptionMoore Products 59RF Derivative Relay | Inverse Fast Derivative Action, 1:6 Derivative Gain, 0.005-2.0 Minutes, 0.1-5 Derivative Needle Valve Graduation.Features & Benefits Force-balance principle produces a proportional output for pneumatic circuit flexibility Derivative action compensates for process and measurement lags for stable pneumatic controlThe Series 59 Derivative Relays are pneumatic relays that operate on the force-balance principle. As such, they produce an output equal to the input signal plus or minus an amount proportional to the rate of input change.The direct derivative output is the input signal plus an amount proportional to the rate of the input change. Inverse derivative output is the input minus an amount proportional to the rate of the input change. Since the magnitude of the derivative response is proportional to the rate of input change, a steady rate of input change will make the output lead (or lag) the input by a definite time. This lead (or lag) time is the derivative time.The Model 59 is a 3 mode controller which includes an integral derivative section, where the derivative action on the input precedes proportional and reset responses. This arrangement, which is the only one that can prevent overshooting on startup, also provides the most effective control following any large load change.
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