Fema Electronica B Series, User Manual, Page: 8 / 28

FEMA ELECTRÓNICA . SERIES B . Models Bxx-T
8
Digits
number of digits 4
digit 7 segments
view angle 120º
color red or green
digit height (see Table 12)
Reading
max., min. 9999 / -1999
overrange / underrange flash reading
sensor break reading to maximum or mini -
mum
(see section 1.13.2)
Input signal
accepted signals Pt100 / RTD and thermocouples
temperature scale ITS90
units ºC or ºF
wire section max. 0.5 mm
2
Pt100 / RTD signals 2 or 3 wire, selectable
resolution 1º or 0.1º, selectable
measuring ranges
(see Table 11)
max. error at 25 ºC
(see Table 11)
thermal drift
(see Table 11)
cable res. compensation automatic, up to 14 Ohms
compensation error <0.02 ºC / Ohm
readings 4 / second
Thermocouples J, K, T, E, S, R, N, C, L, X*
(*thermocouple X is a lineal 10 uV / ºC signal)
resolution 1º
measuring ranges
(see Table 11)
max. error at 25 ºC
(see Table 11)
thermal drift
(see Table 11)
thermocouple CJC automatic (see section 1.13.2)
CJ accuracy <1.0 ºC
CJ thermal drift <0.04 º/ºC
readings 3 / second
Functions included Section
Fast access menu yes, configurable 1.13.6
Manual offset configurable 1.13.2
Thermocouple cold
junction
configurable
1.13.2
Probe break detec-
tion
configurable
1.13.2
Display filters ‘steps’ 1.13.5
‘On Power Up’ yes
1.13.7
Alarms
simple or double setpoint
activation delays
deactivation delays
hysteresis
inverted relays
locked alarms
1.13.3
Memory maximum, minimum 1.13.6
Password configuration locked 1.13.11
Brightness configurable, 5 levels 1.13.14
Table 9 - Functions included
The 4 pin terminal located beside
the input signal module allows to
replicate a remote version of the
front keypad. Connect 4 cables for
front keys ‘SQ’ (
<
), ‘UP’ (
5
) and
‘LE’ (
3
) and for the common. Pass
these cables through the ‘remote
keypad’ cable gland
(see section
1.4).
GND
SQ
UP
LE
1.9 Connections for remote keypad
1.10 Functions included
Messages and errors
.
‘h.oVr’
hardware overrange (‘ h.ovr ’). Input signal is high -
er than 80 mV.
‘h.udr’
hardware underrange (‘
h.udr
’). Input signal is
lower than -30 mV.
‘d.udr’
‘d.oVr’
display underrange (‘ d.udr ’) / overrange (‘ d.ovr ’).
The display is displaying the maximum / mini -
mum value possible (-1999 / 9999).
Table 10 - Messages and error codes.
Messages and errors
.
‘brk’
instrument displays ‘brk’ ‘9999’ or ‘-9999’
• measured Pt100 resistance is higher than
390 Ohms (higher than 850 ºC)
• the Pt100 third wire has a measured impedance
higher than 15 Ohms
• the thermocouple is open circuit
‘Err.1’
incorrect password.
‘Err.2’
at ‘ oPt.X ’ menu entry, module is not recognized.
Table 10 - Messages and error codes.
1.11 Messages and errors
1.12 Technical specifications