Foxboro E69F-BI2-S Converter
The E69F Field-Mounted Current-to-Pneumatic Signal Converter accepts a standard direct current input
signal and converts it to a proportional pneumatic output signal for use with other pneumatic instruments or
control valves. As symbolized by the “CE” Logo marking on the product, this product conforms to the
applicable European Union Directives.
COMPACT AND EASILY MOUNTED
The E69F Converter is a small, compactly designed
device which is very simply connected to both
electrical and pneumatic interfaces. It can be easily
mounted to a surface, a valve yoke, or to a nominal
DN 50 or 2 in vertical pipe.
MINIMAL EFFECTS FROM AMBIENT
ATMOSPHERIC CONDITIONS
The design of the galvanometric motor in the E69F
Converter provides for generous clearances
between coil and housing. Normal atmospheric
changes which may cause corrosion and dust
particles do not hinder operation of the mechanism,
as sometimes happens with voice coil type
instruments.
APPLICATION VERSATILITY
Choice of input and output signals, split input
ranges, as well as direct or reverse action, makes
this converter easily adaptable for a wide range of
applications. Output signals are available to make
this converter particularly suitable for use in valve
applications
SHOCK, VIBRATION, AND INCLINATION
EFFECTS MINIMIZED
Utilizing stiff feedback flexures and low mass
components, the effect of vibration and shock
normally encountered in process applications is
minimized. Statically balancing the coil in the unique
galvanometric motor greatly minimizes inclination
effects.
PERFORMANCE SPECIFICATIONS
(All values are for normal input ranges)
Accuracy
Output Signal Codes 2 and 3
±1.0% of span
Output Signal Codes 7 and 8
±2% of span
Linearity
±0.5% of span, typical
(maximum deviation limited by accuracy
specification)
Repeatability
±0.25% of span, typical
(maximum deviation limited by accuracy
specification)
Hysteresis
±0.5% of span, typical
(maximum deviation limited by accuracy
specification)
Dead Band
E69F-BI2-S
0.1% of span
Supply Pressure Effect
A change in supply pressure causes a zero shift of
less than 0.04% of span per kPa (0.25% per psi).
Ambient Temperature Effect
A 28°C (50°F) change in ambient temperature,
within the operating limits of 0 and 60°C (32 and
140°F), causes zero and span shifts of ±1.0% of
span, or less.
Inclination Effect
Maximum zero shift is 0.25% of span for a 5 degree
angular change in inclination from the vertical. This
error can be eliminated by calibrating instrument at
its intended mounting position.
Shock Effect
Maximum zero shift is 0.5% of span when subjected
to a shock test level of 300 m/s2 (30 “g”) measured
at the feedback support bracket.