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

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.