SATRONIC - Control boxes for oil burners

certified Qualitysystem
ISO 9001 / EN 29001
Reg. Nr. 10529
Regulator
Regulator for modulating burners allowing
exact regulation of pressure or temperature
INTRODUCTION
The UPR 770 is a fully electronic regulator with no mechanical
movement, which operates with "P" characteristics (proportional).
It is designed to accurately regulate temperature
or pressure in heating, ventilation or air-conditioning systems,
and is particularly suitable for maintaining a constant pressure
or temperature inside a heating system boiler while the
output of the modulating burner is varied. Deviations from
the nominal value are evaluated by an integrated circuit
differential amplifier. As well as greatly amplifying the signal
which indicates a deviation, the amplifier remains extremely
stable, being insensitive to zero point drift, ambient
temperature variations and fluctuations in the mains voltage.
Output from the regulator is via two contacts which demand
"more" or "less" power from the system it is regulating.
Three potentiometers for initial adjustment of the regulator
are positioned on the front plate together with the "+" and
"-" indicator lamps. The main regulating potentiometer
(for setting the desired pressure or temperature value) has
an easily-read scale, and can be locked at the required
setting. This potentiometer is of the plug-in type, making
it very easy and convenient to keep a range of potentiometers
with the required values available, and also providing
the possibility of connecting an external (remote) main
potentiometer. When the regulator is operated together with
the FED 621 photo-electric pressure sensor, the jumper
wire on the underside of the unit must be cut.
Terminals are provided for the following:
- Resistance thermometer Pt 100 Ω / 0° C
- Main potentiometer for setting the required value according
to the standard measurement range or a special range as
specified by the customer
- Feedback potentiometer 100 E
- FED 621 photo-electric pressure sensor
- Regulating device (2 switching contacts which carry no
other voltage)
CONSTRUCTIONAL FEATURES
The regulator is enclosed in a plug-in type plastic housing.
All operating controls and the central fastening screw are
situated on the front of the housing.
The wiring base is equipped with additional live, neutral and
earth terminals which, together with the various cable entry
points, ensure easy-to-follow and efficient wiring of the unit.
A Honeywell Company
1
TECHNICAL DATA
UPR 770
600e/05/94
Supply voltage 220 / 240 V (-15... +10%)
50 Hz (40 - 60 Hz)
Fuse rating max. 10 A rapid
Power consumption approx. 10 VA
Max. current rating 4 A per terminal
6 A total
Permissible ambient -5° C to +60° C
temperature
Pressure or temperature Pt 100 resistance thermometer
sensor or FED pressure sensor
Feedback 100 W potentiometer on regulating
device
Feedback signal 0 to ±5 % of the regulating
strength Xp range
Sensitivity E adjustable up to ±0.2 % of the
final value
Zero-point adjustment Xo adjustable up to ±25° C for a
desired value of 100° C
Standard measurement 50 - 180° C and 140 - 360° C
ranges 1, 4, 16 and 25 bar, depending
on type of FED
Length of cable to sensor max. 200 m, 1.5 mm 2
and remote potentiometer (without screening)
Mounting attitude any
Weight including base approx. 900 g