dixell XT220C Instruction Manual

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XT220C – XT221C
Two Stages Digital Controllers
with Multi Probe Input
1. GENERAL WARNING
1.1 PLEASE READ BEFORE USING THIS
MANUAL
•This manual is part of the product and should be kept near the
instrument for easy and quick reference.
•The instrument shall not be used for purposes different from those
described hereunder. It cannot be used as a safety device.
•Check the application limits before proceeding.
1.2 SAFETY PRECAUTIONS
•Check the supply voltage is correct before connecting the
instrument.
•Do not expose to water or moisture: use the controller only within
the operating limits avoiding sudden temperature changes with
high atmospheric humidity to prevent formation of condensation
•Warning: disconnect all electrical connections before any kind of
maintenance.
•The instrumentmustnotbe opened.
•In case offailure or faulty operation send the instrument back to the
distributor or to “DIXELL s.r.l.” (see address) with a detailed
description ofthe fault.
•Consider the maximum current which can be applied to each relay
(see Technical Data).
•Ensure that the wires for probes, loads and the power supply are
separated and far enough from each other, without crossing or
intertwining.
•In case of applications in industrial environments, the use of mains
filters (our mod. FT1) in parallel with inductive loads could be
useful.
2. GENERAL DESCRIPTION
The XT220C and XT221C are two-stage ON/OFF controllers
for temperature,humidity and pressure applications with direct
or inverse action, user-selectable. The analogue input type can
be set by parameter between the following, according to the
model:
-PTC, NTC;
-PTC, NTC, Pt100, Thermocouple J, K, S;
-4÷20mA, 0÷1V, 0÷10V.
3. FIRST INSTALLATION
3.1 PROBE SETTING
The pre-set probe type is
written on the label of the
instrument, see picture. If it is
different fromthe probe that
has be used, set the probe following procedure below
3.1.1 How to set the probe.
1. Enter the programming menu by pressing the SET+ 8
8
for 3s.
2. Select the Pbc (Probe configuration) parameter and
push the SET key.
3. Set the kind of probe:
a. Controller for temperature: Pt= Pt100, J = J
thermocouple, c= K thermocouple, S = S
thermocouple;Ptc = PTC; ntc = ntc.
b. Controller with current or voltage inputs:
cur=4÷20mA, 0-1= 0÷1V, 10= 0÷10V
4. Push the SET key to confirm it.
5. Switch the controller off and on again.
NOTE: Before proceeding check and, if necessary; set with
appropriate values the Minimum Set Points (LS1 e LS2) and
Maximum Set Points (US1 e US2). See also the paragraphs
concerning the programming.
4. REGULATIONS
4.1 2 INDEPENDENT OUTPUTS (OUC=IND)
Two independent control stages (ouC=ind): output #1 at direct
(S1C=dir) or inverse (S1C=in) action; output #2 at (S2C = dir)
direct or inverse (S2C =in) action.
E.I. with OUC = ind, S1C = dir (cooling), S2C = dir (cooling).
4.2 2 DEPENDENT OUTPUTS (OUC=DIP)
With dependent control stages (ouC=diP) SET2 is related to
SET1:
therefore SET2 is:SET1+SET2
output #1 with direct or inverse action according to the S1C
parameter; output #2 with direct or inverse action according to
the S2C.
E.I. with ouC=diP (dependent), S1C = dir (cooling), S2C =
dir (cooling).
5. FRONT PANEL COMMANDS
SET: To display and modify target set point1 and 2; in
programming mode it selects a parameter or confirm an
operation.
TO SWITCH THE INSTRUMENT ON/OFF: If the function
is enabled (par. onF=yES), by pressing the SET key for
more than 4s the controlleris switched OFF. To switch the
instrumenton again press the SET key.
9
9
UP: in programming mode it browses the parameter codes
or increases the displayed value. Hold it pressed for a
faster change
8
8
DOWN: in programming mode it browses the parameter
codes or decreases the displayed value. Hold it pressed
for a faster change
/
/
CLOCK To set the timerand to start/stop a cycle
KEY COMBINATIONS:
9
9
+ 8
8
To lock & unlock the keyboard.
SET + 8
8
To enter in programming mode.
SET + 9
9
To return to the room temperature display.
5.1 USE OF LEDS
A series of light points on the front panels is used to monitor
the loads controlled by the instrument. Each LED function is
described in the following table.
LED MODE FUNCTION
ON Output 1 enabled
ON Output 2 enabled
LED1 Flashing - Programming Phase (flashing with LED2)
LED2 Flashing - Programming Phase (flashing with LED1)
LED3 Flashing - The cycle is running
ON - ALARM signal
- In “Pr2” indicates the parameter is also
present in “Pr1”
5.2 TO SEE AND MODIFY THE SETPOINT1 (OR
SETPOINT2)

1. Push and release the
SET
key, the
St1
label is displayed, push again the
SET key to see the value.
2. To change the Set1 value push the 9
9
or 8
8
arrows
within 10s and confirm itwith SET key.
3. The St2 label is displayed, push the SET key to see the
value and use the 9
9
or 8
8
arrows within 10s to modify it.
EXIT: push the SET + 9
9
keys or wait for 15s without pushing
any keys.
5.3 HOW TO SET THE TIMER
Hold pressed the CLOCKkey for 3s.
The duration (hh:mm) will be displayed.
Use the UPand DOWN keys to adjust it.
Confirm the value pushing again the SET key or waiting 10s.
5.4 HOW TO START A CYCLE
Push and release the CLOCKkey.
The remaining time of the cycle will be displayed and the timer
is started.
5.5 CYCLE END
The end of the cycle is signalled by the “End” message on the
display and by the activation of the buzzer.
The buzzer go on noising till a key is pressed..
5.6 HOW TO MANUALLY STOP A CYCLE.
When a cycle is in progress push and release the CLOCKkey.
The controller come back to display the temperature and the
timer is erased.
5.7 HOW TO CHANGE THE TIMER WHEN A CYCLE
IS RUNNING.
Hold pressed the CLOCK key for 3s, the remaining time starts
blinking.
Use the UPand DOWN keys to adjust it.
Confirm the value pushing again the SET key or waiting 10s.
5.8 HOW TO SEE THE TEMPERATURE DURING A
CYCLE
When the cycle is running, the controller displays the remaining
time to the end of the cycle.
Push the DOWN key, the temperature will be displayed for 5s.
5.9 POSSIBILITY OF SELECTING THE KIND OF
REGULATION: CONTINUOS OR ONLY DURING THE
CYCLE.
By means of the trM parameter the kind of regulations is set::
With trM = oFF the regulation is enabled only during the cycle.
With trM = on the regulation is always active, the cycle
consists of starting the timer and signalling when this is
expired.
5.10 TO ENTER THE PARAMETERS LIST “PR1
To enter the parameter list “Pr1” (user accessible parameters)
operate as follows:1. Push for 3s the SET +
8
8
keys (LED1 &
2 start blinking).
2. The controller will display the first
parameter presentin the Pr1 menu..
5.11 TO ENTER THE PARAMETERS LIST “PR2”
The “Pr2” parameter listcontains the configuration parameters.
A security code is required to enter it.
1. Enter the “Pr1” level, see above paragraph.
2. Select “Pr2” parameter and press the “SET” key.
3. The “PAS” flashing message is displayed, shortly followed
by “0 - -” with a flashing zero.
4. Use 9
9
or 8
8
to input the security code in the flashing
digit;confirm the figure by pressing “SET”.

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The security code is “321”.
5. If the security code is correct the access to “Pr2” is
enabled by pressing “SET” on the last digit.
Another possibility is the following:
After switching ON the instrument, within 30 seconds, push
SET +
8
8
keys together for 3s: the Pr2 menu will be entered.
5.12 HOW TO MOVE A PARAMETER FROM THE
“PR2” MENU TO “PR1” AND VICEVERSA.
Each parameterpresent in “Pr2” MENU can be removed or put
into “Pr1”, user level, by pressing “SET +
8
8
”.
In “Pr2” when a parameter is present in “Pr1” the LED is
on.
5.13 HOW TO CHANGE A PARAMETER
To change a parameter value operates as follows:
1. Enter the Programming mode
2. Select the required parameter.
3. Press the “SET” key to display its value.
4. Use “UP” or “DOWN” to change its value.
5. Press “SET” to store the new value and move to the
following parameter.
TO EXIT: Press SET + UP orwait 15s without pressing a key.
NOTE: the set value is stored even when the procedure is
exited by waiting the time-out to expire.
5.14 HOW TO LOCK THE KEYBOARD
1. Keep pressed formore than 3 s the the
9
9
and 8
8
keys.
2. The “POF” message will be displayed and the keyboard
will be locked. At this point it will be possible only to see
the set pointor the MAXo Min temperature stored
3. If a key is pressed more than 3s the “POF” message will
be displayed.
5.15 TO UNLOCK THE KEYBOARD
Keep pressed together for more than 3s the the 9
9
and 8
8
keys, till the “Pon” message will be displayed.
5.16 ON/OFF FUNCTION
TO SWITCH THE INSTRUMENT ON/OFF: If the function is
enabled (par. onF=yES), by pressing the SET key for more
than 4s the controller is switched OFF. To switch the
instrumenton again press the SET key.
6. PROBES AND MEASURING RANGE
Probe Down Scale Full Scale
NTC -40°C/-40°F 110°C / 230 °F
PTC -50°C / -58°F 150°C / 302°F
Pt100 -200°C / -328°F 600°C / 1112°F
TcK 0°C / 32°F 1300°C / 1999°F
TcJ 0°C / 32°F 600°C / 1112°F
TcS 0°C / 32°F 1400°C / 1999°F
7. LIST OF PARAMETERS
REGULATION
Hy1 Intervention differential for set point1 (-Full Sc. / Full
Sc.). It can be set with positive value or with negative
value. The kind of action depends on the S1C parameter:
dir = direct or in = inverse.
Hy2 Intervention differential for set point2: (-Full Sc. / Full
Sc.). It can be set with positive value or with negative
value. The kind of action depends on the S2C parameter:
dir = direct or in = inverse.
LS1 Minimum set point1: (Down Sc.÷ Set1) Sets the
minimum acceptable value for the setpoint1.
LS2 Minimum set point2: (Down Sc.÷ Set2) Sets the
minimum acceptable value for the setpoint2.
US1 Maximum set point1: (Set1÷ Full Sc.) Sets the maximum
acceptable value for set point1.
US2 Maximum set point2: (Set2÷ Full Sc.) Sets the maximum
acceptable value for set point2.
ouC Output connections (diP=dependent; ind=independent)
select if SET2 is independent from SET1 or if the SET2
depends on SET1 (so Set2= SET1+SET2).
S1C Action type output 1: S1C=in inverse action (heating/
humidifying /increase pressure); S1C=dir direct action
(cooling /dehumidifying /decrease pressure).
S2C Action type output 2: S2C=in inverse action (heating/
humidifying /increase pressure); S2C=dir direct action
(cooling /dehumidifying /decrease pressure).
AC Anti-short cycle delay: (0÷250 sec) Minimum time
between the switching off and the following switching on
on Minimum time a stage stays switched ON (0÷250 sec)
ono:Minimum time between 2 following switching ON of
the same load (0÷120 min).
CYCLE REGULATION
trd Cycle length setting (0÷19.59h)
trM Regulation setting
oFF the regulation is enabled only during the cycle.
on the regulation is always active, the cycle consists of
starting the timerand signalling when thishas expired.
trS Timer exhausted signallin
no the buzzer is not activated; yES: the buzzer is
activated. ALARMS
ALC Alarms configuration: it determines if alarms are relative
to set point1 or referred to absolute values.
rE relative to set point1; Ab absolute temperature
ALL Minimum alarm:
with ALC=rE: relative to set point1, (0÷|Down Sc.-Set1|)
this value is subtracted from the set point1. The alarm
signal is enabled when the temperature goes below the
“SET1-ALL” value.
with ALC=Ab absolute temperature, (Down Scale ÷ ALu)
minimum alarm is enabled when the temperature goes
below the “ALL” value.
ALU Maximum alarm:
with ALC=rE: alarm relative to set point1, (0÷|Full Sc.-
Set1|) Maximum alarm is enabled when the temperature
exceeds the “SET1+ALU” value.
with ALC=Ab: absolute alarm, (ALL÷Full Sc.) Maximum
alarm is enabled when the temperature exceeds the
“ALU” value.
ALHTemperature alarm for alarm recovery: (0,1÷Full scale)
Differential for alarm reset, always positive.
ALd Alarm delay:(0÷999 min) time interval between the
detection ofan alarm condition and alarm signalling.
dAo Delay of alarm at start-up: (0÷23.5h) time interval
between the detection of the alarm condition after
instrument power on and alarm signalling.
So1 Output 1 status with faulty probe: So1=oFF open;
So1=on closed.
So2 Output 2 status with faulty probe: So2=oFF open;
So2=on closed.
tbA Status of alarm relay after pushing a key. (XT221C
only): oFF = relay disabled; on = relay enabled.
AS Alarm relay configuration (XT221C only): cL = 5-6
terminals open with alarm; oP = 5-6 terminals closed with
alarm. PROBES AND DISPLAY
LCI Start of scale, only with current or voltage input:
(-1999÷1999) Adjustment of read out corresponding to
4mA or 0V input signal.
UCI End of scale, only with current or voltage input
(-1999÷1999) Adjustment of read out corresponding to
20mA or 1V or 10V input signal.
oPb Probe calibration: (-Full sc.÷Full sc.) allows to adjust
possible offset of the probe.
rES Decimal point ON/OFF: (rES=in OFF; rES=dE ON; rES=
cE with 2 decimal points, only for current or voltage input)
select the resolution ofthe controller.
NOTE: the decimal point selection is not available on
models with thermocouple input.
UdM Measurement unit: it depends on models:
for temperature:°C = Celsius; °F= Fahrenheit.
with 4÷20mA, 0÷1V, 0÷10V input : 0= °C; 1= °F, 2=
%RH, 3=bar, 4=PSI, 5=no measurement unit.
PbC Probe selection: it sets the kind of probe. It depends on
models
for temperature NTC/PTC: Ptc = PTC; ntc = ntc.
for temperature standard: Pt= Pt100, J = J
thermocouple,
c= K thermocouple, S = S thermocouple;
Ptc = PTC; ntc = ntc.
with 4÷20mA, 0÷1V, 0÷10V input : cur=4÷20mA, 0-1=
0÷1V, 10= 0÷10V.
P3F Third wire presence for Pt100 probe: for using 2 or 3
wires Pt100 probes: no = 2 wires probe; yES = 3 wires
probe. DIGITAL INPUT
HESSet point 1 changes during the Energy Saving cycle:
(Down Sc./Full Sc.) sets the variation of the set point 1
during the Energy Saving cycle.
i1F Digital input operating mode: configure the digital input
function: c-H = to invert the kind of action: direct - reverse;
oFF = to switch the controller off.; AUS = Not used; HES =
Energy Saving; EAL = generic external alarm; bAL =
serious external alarm: it switches off the loads.
i1P Digital input polarity:
CL : the digital input is activated by closing the contact;
OP : the digital input is activated by opening the contact
did Digital input alarm delay:(0÷120 min) delay between
the detection of the external alarm condition (i1F= EAL or
i1F = bAL)and its signalling.
OTHER
Adr RS485 serial address (0÷247) identifies the instrument
within a control or supervising system.
onF Swithching ON/OFF enabling from keyboard: (no =
disabled; yES=enabled) It permits the switching ON/OFF
of the instrument by pressing the SET1 key for more than
4s.
Ptb Parameters table: (read only) Shows the code of the
parameters map.
rEL Software release: (read only)
Pr2 To access the Pr2 parameter programming menu.
8. INSTALLATION AND MOUNTING
Instrument XT220C and XT221C shall be mounted on vertical
panel, in a 29x71 mm hole, and fixed using the special
brackets supplied.
To obtain an IP65 protection grade use the front panel rubber
gasket (mod. RG-C).
The temperature range allowed for correct operation is 0÷60
°C. Avoid places subject to strong vibrations, corrosive gases,
excessive dirt or humidity. The same recommendations apply
to probes. Letair circulate by the cooling holes.
9. ELECTRICAL CONNECTIONS
The instruments are provided with screw terminal block to
connect cables with a cross section up to 2,5 mm2. Before
connecting cables make sure the power supply complies with
the instrument’s requirements. Separate the input connection
cables from the power supply cables, from the outputs and the
power connections. Do not exceed the maximum current
allowed on each relay, in case of heavier loads use a suitable
externalrelay.
10. SERIAL CONNECTIONS
All models can be connected to the monitoring and supervising
system XJ500 using the serial port. The external XJ485 serial
module to interface the instrument with the monitoring and
supervising system XJ500 is required.
The standard ModBus RTU protocol it is used.
NOTE: Instruments with current or voltage input and 230V
or 115V supply, cannot be connected to the XJ485 serial
module.
11. HOW TO USE THE HOT KEY
11.1 HOW TO PROGRAM A HOT KEY FROM THE
INSTRUMENT (UPLOAD)
1. Program one controller with the front keypad.
2. When the controller is ON, insert the “Hot key” and push
9
9
key; the "uPL" message appears followed a by
flashing
“End”
3. Push “SET” key and the End will stop flashing.
4. Turn OFF the instrument remove the “Hot Key”, then
turn it ON again.
NOTE: the “Err” message is displayed for failed programming.
In this case push again 9
9
key if you want to restart the upload
again or remove the “Hot key” to abort the operation.
11.2 HOW TO PROGRAM AN INSTRUMENT USING
A HOT KEY (DOWNLOAD)
1. Turn OFF the instrument.

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2. Insert a programmed “Hot Key” into the 5 PIN
receptacle and then turn the ControllerON.
3. Automatically the parameter list of the “Hot Key” is
downloaded into the Controller memory, the “doL”
message is blinking followed a by flashing “End”.
4. After 10 seconds the instrument will restart working with
the new parameters.
5. Remove the “Hot Key”..
NOTE the message “Err” is displayed for failed programming.
In this case turn the unit off and then on if you want to restart
the download again or remove the “Hot key” to abort the
operation.
12. DIGITAL INPUT
XT220C and XT221C have 1 free contact digital input. It is
programmable in 5 different configurations by the “i1F”
parameter.
12.1 INVERT THE KIND OF ACTION: HEATING-
COOLING (I1F = C-H)
This function allows to invert the regulation of the controller for
both the outputs: from direct to inverse and viceversa.
12.2 REMOTE ON/OFF (I1F = OFF)
This function allows to switch ON and OFF the instrument.
12.3 GENERIC ALARM (I1F = EAL)
As soon as the digital input is activated the unit will wait for
“did” time delay before signalling the “EAL” alarm message.
The outputs status don’t change. The alarm stops just after the
digital input is de-activated.
12.4 SERIOUS ALARM MODE (I1F = BAL)
When the digital input is activated, the unit will wait for “did”
delay before signalling the “bAL” alarm message. The relay
outputs are switched OFF. The alarm will stop as soon as the
digital input is de-activated.
12.5 ENERGY SAVING (I1F = HES)
The Energy Saving function allows to change the set point1
value as the result of the SET1+ HES (parameter) sum. This
function is enabled until the digital inputis activated.
13. ALARM SIGNALS
Message Cause Outputs
“PFo” Probe broken or
absence Alarm output ON; Output 1 and 2 according parameters “So1”
and “So2” respectively.
“PFc” Probe short
circuited Alarm output ON; Output 1 and 2 according parameters “So1”
and “So2” respectively.
“HA” Maximum
temperature alarm Alarm output ON; Other outputs unchanged.
“LA” Minimum
temperature alarm Alarm output ON; Other outputs unchanged.
“EAL” External alarm Output unchanged.
“bAL” Serious external
alarm OutputOFF.
13.1 ALARM RELAY STATUS (XT221C)
Status of the instrument AS = CL AS = oP
Instrumentoff 5-6 closed 5-6 closed
Normal operating 5-6 closed 5-6 open
Alarm present 5-6 open 5-6 closed
13.2 SILENCING BUZZER / ALARM RELAY
OUTPUT
Once the alarm signal is detected the buzzer,if present, can be
disabled by pressing any key.
XT221C: the alarm relay status depends on the tbA parameter:
with tbA=yES the relay is disabled by pressing any key, with
tbA=no the alarm relay remains enabled as long as the alarm
lasts. The display signalremains as long as the alarm condition
remains.
13.3 ALARM RECOVERY
Probe alarms “PFo”, “PFc” start few seconds after the fault in
the probe;they automatically stop few seconds after the probe
restarts normal operation. Check connections before replacing
the probe.
Max. and min. alarms “HA” and “LA” automatically stop as
soon as the variable returns to normal values.
Alarms “bAL” and “EAL” recover assoon as the digital input is
disabled.
14. TECHNICAL DATA
Housing: self extinguishing ABS.
Case: frontal32x74 mm; depth 60mm;
Mounting: panelmounting in a 71x29 mm panelcut-out.
Protection: IP20.
Frontal protection: IP65 with frontal gasket RG-C (optional).
Connections: Screw terminal block ≤2,5 mm2heat-resistant
wiring.
Power supply: 12Vac/dc, ±10% or: 24Vac/dc ±10%
or 230Vac ±10%, 50/60Hz or 110Vac, ±10%, 50/60Hz
Power absorption: 3VA max.
Display:3 ½ digits, red LED
Inputs: according to the order: NTC/PTC or NTC/PTC /Pt100
/Thermocouple J, K, S or 4÷20mA/ 0÷1V / 0÷10V
Relay outputs:
Output1: relay 8(3)A, 250Vac
Output2: relay 8(3)A, 250Vac
Alarm: (XT221C), 8(3)A, 250Vac
Other output: buzzer (optional)
Kind of action: 1B.; Pollution grade: normal;
Software class: A.
Data storing: on the non-volatile memory (EEPROM).
Operating temperature: 0÷60 °C (32÷140°F).
Storage temperature: -30÷85 °C (-22÷185°F).
Relative humidity: 20÷85% (no condensing)
Measuring and regulation range: according to the probe
Controller Accuracy a 25°C: better than ±0,5% of full scale
15. CONNECTIONS
15.1 XT220C – 12V AC/DC OR 24V AC/DC
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
Hot-KEY
8(3)A250V
8(3)A250V
Line
Input: 4÷20mA
0÷1V /0÷10V

PTC /NTC
Probe: Pt100= 7 – 9 (8); Thermocouple J, K, S = 7(+); 9(-)
24Vac/cd supply: 11-12
15.2 XT220C – 230V AC OR 115V AC


Hot-KEY
8(3)A250V
8(3)A250V
Line
Input 4÷20mA
0÷1V /0÷10V


PTC /NTC
Pt100=9 –11 (10); Thermocouple J, K, S = 9(+) - 11(-)
115Vac supply: 7-8
15.3 XT221C – 12VAC/DC OR 24VAC/DC
 

Hot-KEY
8(3)A250V
8(3)A250V
8(3)A250V
Line
LOAD 1
LOAD 2
ALARM
Input: 4÷20mA
0÷1V /0÷10V

PTC /NTC
Probe: Pt100= 7 – 9 (8); Thermocouple J, K, S = 7(+); 9(-)
24Vac/cd supply: 11-12
15.4 XT221C – 230V AC OR 115V AC


Hot-KEY
8(3)A250V
8(3)A250V
8(3)A250V
Line
LOAD 1
LOAD 2
Alarm
Input 4÷20mA
0÷1V /0÷10V


PTC /NTC
Probe: Pt100=9–11 (10); Thermocouple J, K, S= 9(+) - 11(-)
115Vac supply: 7-8

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16. DEFAULT SETTING VALUES
COD
Name Range
°C/°F
Lev
Set1 Set point1 LS1÷US1 0/32 -
Set2 Set point2 LS2÷US2 1/34 -
Hy1 Differential 1 -Full Sc./Full Sc. -1/-2 Pr1
Hy2 Differential 1 -Full Sc./Full Sc. -1/-2 Pr1
LS1 Minimum set point1 Down Sc./ Set1 min Pr2
LS2 Minimum set point2 Down Sc./ Set2 min Pr2
US1 Maximum set point1 Set1/ Full Sc. max Pr2
US2 Maximum set point2 Set2/ Full Sc. max Pr2
ouC Output configuration ind= independent;
diP = dependent ind Pr2
S1C Action type output 1 in= Inverse; dir=direct in Pr2
S2C Action type output 2 in= Inverse; dir=direct in Pr2
Ac Anti-short cycle delay: 0÷250 sec 0 Pr2
on Minimum time a stage
stays switched ON 0÷250 sec 0 Pr2
ono Minimum time between 2
following switching ON of
the same load
0÷120 min 0 Pr2
trd Cycle length setting 0 ÷ 19:59 ( 0 =
disable ) 0,00 Pr2
trM Regulation setting oFF = stop
regulation
on = regulation
continues
oFF Pr2
trS Timer exhausted
signalling no = buzzer off
yES = buzzer on Yes Pr2
ALC Alarm configuration rE=relat.; Ab= absolute rE Pr2
ALL Minumum alarm (ALC=rE)
(ALC=Ab) 0 ÷ |Start Sc.-Set1| Start Sc.÷ ALu 10.0/ 20 Pr2
ALU Maximum alarm (ALC=rE)
(ALC=Ab) 0 ÷ |Full Sc.-Set1|. ALL÷ Full Scale 10.0/ 20 Pr2
ALH Alarm recovery differential 0÷Full scale 2.0/4 Pr2
ALd Alarm delay 0÷999 min 15 Pr2
dAO Alarm delay at start up 0÷23h 50min 1.3 Pr2
So1 Out1 status with faulty pr. oFF=open on=closed oFF Pr2
So2 Out2 status with faulty pr. oFF=open on=closed oFF Pr2
tbA1Alarm relay disabling no; yES yES Pr2
AS1Alarm relay polarity CL÷oP oP Pr2
Lci2Start scale with current or
voltage input -1999÷1999 various Pr1
Uci2End scale with current or
voltage input -1999÷1999 various Pr1
OPb Probe calibration -Full Sc./ Full Sc. 0.0 Pr1
rES Resolution in=NO; dE=0,1;
cE=0,01 in Pr2
UdM Measurement unit (
temp
.)
(current/voltage)°C=°C;°F=°F; 0=°C; 1=°F; 2=RH;
3=bar; 4=PSI, 5=off
various Pr1
PbC Kind of probe Pt=Pt100; J=tcJ;c= tck;
S=tcS;Ptc=PTC;ntc=
NTC;0-1=0÷1V; 10=
0÷10V; cur=0÷20mA
various Pr1
P3F 3rd wire presence no=2 wires;
yES=3 wires no Pr2
HES Energy saving differential Down Sc./ Full Sc. 0.0 Pr2
i1F Digital input configuration c-H / oFF / AuS / HES
/ EAL / bAL EAL Pr2
i1P Digital input polarity cL=closing;
oP=opening cL Pr2
did Alarm delay for dig. input 0÷120m 0 Pr2
Adr Serial address RS485 address 1 Pr2
OnF oFF function enabling no=not enabled;
oFF=enabled no Pr2
Ptb Parameter table Readable only -- Pr2
rEL Software release Readable only --- Pr2
Pr2 To access the Pr2 Readable only 321 Pr1
1 Only for XT221C; 2Only for instrument with 4÷20mA or 0÷1V
or 0÷10V
Dixell s.r.l. Z.I. Via dell’Industria, 27
32010 Pieve d’Alpago (BL)ITALY
tel. +39 - 0437 - 98 33 - fax +39 - 0437 - 98 93 13
E-mail: [e-mail] - http://www.dixell.com