gefran 2500 User Manual

U.[A User Calibration
This menu lets you run user calibration
Function
0 -
1 Input IN1 *
2 Input IN2 *
3 Input IN3 *
4 Input IN4 *
5 (A.o1 - control output 1 trimming
6 (A.o2 - control output 2 trimming
7 (A.rt - retransmission output trimming
8 IN1 potentiometer input - manual setting of calibration values.
Note.: only for model with a single input: model 2500-0-...
Minimum
calibration (**)
Maximum
calibration (**)
zero acquisition phase,
potentiometer with cursor
in position at minimum
voltage or main in case
of symmetrical input
+16 Only for IN1 and IN2 Strain gage inputs: “zero” acquisition without upper limit
+32 Reset factory calibration of selected input
(*) Calibration takes place according to the type of input selected in configuration
(**) Use the keys to cali-
brate the analog output, changing the
value displayed in SV.
Zero acquisition phase with strain-gau-
ge drained (zero weight or pressure).
Lasts a few seconds and is indicated
by flashing message SG.1
Zero recalculation phase, dump the strain-
gauge by removing the reference sample
Acquisition phase for automatic definition
of sensitivity and full-scale, load strain-
gauge with reference sample or automatic
activation of configured output for 6-wire
probe control.
The value of 80% f.s. is proposed; the
value can be changed to set the value in
engineering units corresponding to the
sample applied. The changed value is
kept for subsequent calibrations until the
instrument is switched off. When switched
on again, it returns to 80% f.s.
The acquisition phase lasts a few secon-
ds and is indicated by flashing message
SG.2
Maximum acquisition
phase, potentiometer
with cursor in position at
maximum voltage
Control or retransmission
outputs
Potentiometers or
Linear
Strain gauge
Calibration at minimum
value
(ex.PT100R=18,52Ω)
Calibration at maximum
value
(ex.PT100R=390,48Ω)
Calibration 50mV
set room tempera-
ture in °C (25,0) at
which calibration
is run
TC
RTD (PT100)
PV
U.(AL
PV
(a.Lo
PV
(a.xi
PV
(.Lo
PV
(.xi
PV
SG.1
PV
SG.2
PV
SG.3
PV
rtd.Lo
PV
tc.50
PV
tc.ta
PV
rtd..xi
Sensor code 14, 15
YES
NO
Calibration 0mV
PV
tc.00
U.(A
U.(A
U.(A
IN1 potentiometer
manual set (***) / calibration reading
minimum calibration
phase 1
(Least Significant Word)
PV
SV
F
PotL.L
minimum calibration
phase 2
(Most Significant Word)
maximum calibration
phase 1
(Least Significant Word)
maximum calibration
phase 2
(Most Significant Word)
PV
SV
F
PotL.x
PV
SV
F
Potx.L
PV
SV
F
Potx.x
(***) the value to set up can be
read from an other instrument in
order to inherit the calibration
Note.: only for model with a single input: 2500-0-...
U.(A
Note:
calibration 4-20mA NOT allowed
(calibrate with 0-20mA input)
(from version V1.44)
4780291G_MHW_2500_08-2010_ENG
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gefran 2500 Specifications

General

Brand	gefran
Model	2500
Category	Controller
Language	English