REGLOPLAS RT 45 User manual

RT 45
Operating Instructions
SWISS MADE
Zertifiziertes
Qualitätssystem
ISO 9001
Reg. Nr.
11265

1
English
Operating Instructions
Valid from software version 345
Pages 75–109
Subject to change without notice

75
Operating Instructions
Control System
RT 45
Contents
1. General Comments 76
2. Range of Application 76
3. Operating elements and displays 76
4. Switching on 77
5. Switching off 78
6. Displays 78
Operational displays section 6.1 78
Malfunction displays 6.2 79
7. Programming 86
SEt SEL section 7.1 86
SEt Fun section 7.2 87
SEt ALA section 7.3 89
SEt OFS section 7.4 91
SEt PAr section 7.5 92
SEt SyS section 7.6 93
SEt PEr section 7.7 97
SEt CLC section 7.8 98
8. Controlling and Servicing 102
Con L1 section 8.1 102
Con L2 section 8.2 103
rES Et section 8.3 104
9. Control methods 105
10. Operation with Interface 105
11. Appendix 105

76
12 On/Off key with lamp indicating operation.
13 Lamps for heating and cooling.
14 Key for programming.
15 Key with lamp for programming the timer.
1
3
14
15
13
12
11
10
2
4
5
6
7
8
9
Fig. 1: Operating elements and displays
1. General Comments
The Regloplas RT 45 microprocessor control system consists of a control component with operating
and display elements, as well as a performance component built into the temperature control unit with
several inserts for accessories.
2. Range of Application
The RT 45 control system was developed for use in temperature control units (hereafter referred to as
“unit”). It enables dialog between one or more units and the processor of the production facility via an
interface as well as operation independent of the processor.
3. Control and indicating elements
(fig. 1)
1 Display for actual value at temperature sensor
Sn1 or Sn2 and malfunctions.
2 Display for set values SP1, SP2 and malfunc-
tions.
3 Lamps for the actual value of the outlet tem-
perature S1 (sensor Sn1) and the consumer tem-
perature S2 (sensor Sn2).
4Lamps for the first and second set values SP1 or
SP2.
5 Keys for adjusting set values and programming.
6 Reset key with malfunction lamp for alarm, as
well as switching set values SP1–SP2 and vice
versa.
7 Key with lamps for drainage and leak-stop modes.
8 Key for flow indicator and malfunction lamp for
flow.
9 Malfunction lamp for level of heat transfer fluid.
10 Malfunction lamp for pump motor.
11 Malfunction lamp for overheating.
Switching on and off of the control system with the “On/Off” key.
Set-value and actual-value display. When the unit is turned on via the “On/Off” key, the set tempe-
rature “SP1” or “SP2” appears in the display to the right (2), while the actual temperature “S1” of the
internal probe Sn1 (fluid temperature) or “S2” of the external probe Sn2 (consumer temperature) ap-
pears in the display to the left (1).
Display of inlet and outlet temperatures. By pressing the keys “up” (∆) and “down” (∇) simulta-
neously, the inlet temperature “S3” will appear in the display to the right (or: “no” = probe not pre-
sent; S 3 probe defective). The outlet temperature “S1” will appear in the display to the left (the lamp
“S1” lights up).
“Up” (∆) and “Down” (∇) key (5). Increases and decreases the set value and changes the pro-
grammed value.
“Timer” key (15). Used for programming the timer, when present.
“P” key (14). Programming key.
“Heating/Cooling” lamps (13). When the upper lamp is lit, the unit is heating; when the lower lamp
is lit, the unit is cooling.
“Suction/Leak Stop” key with lamps (7). By pressing the key once, the unit is switched to leak-stop
mode. The lamp below the key lights up. Leak-stop mode is only possible when:

77
– the set value is in the range 0 to “PtE“ (max. 80 °C) if water is the heat transfer fluid,
– the set value is in the range 0 to 250 °C if oil is the heat transfer fluid.
With leak-stop mode and oil the max. heating capacity is 60%.
By pressing the key twice, the suction or drainage mode by compressed air (model P140S) mode is
initiated and the consumer connected to the unit is drained. The upper lamp lights up.
Drainage is possible only when the fluid temperature S1 is below the programmed pump run-out tem-
perature “PtE”. If this is not the case, the unit will first cool the heat transfer fluid down to this value.
The pump will then switch off.
After the run-out time “dtP”, the pump will reverse direction and empty the consumer during suction
time “Sut”. After this period of time, the unit will switch off automatically.
Drainage and leak-stop modes can be interrupted by pressing the “On/Off” key. Holding the “On/Off”
key (wait until the “Suction/ Leak-Stop” lamp goes off) will switch the unit back to normal operation.
When using water as the fluid and in leak-stop mode, the set value cannot be adjusted higher than the
“PtE” value.
Note: In pressurized water units, the pressure release valve shuts 5 °C above the “PtE” temperature,
i.e. max. 85 °C, and opens at “PtE” when cooling.
“Alarm Reset” key and switch-over “set value 1” (SP1)/“set value 2” (SP2) with lamp (6). Func-
tion:
– Manual resetting of the alarm relay (e.g. horn switched off). As soon as the malfunction has been
corrected, the alarm display can be switched off by pressing this key once more.
– Manual acknowledgement of the automatic switch-over from consumer temperature control (cas-
cade) to outlet temperature control for defective or missing sensor Sn2 (consumer sensor).
These notes are valid only, if the value «rtr» in Section 7.3 is set to 0.
– Set value switch: pressing the key briefly will cause the second set value SP2 to be displayed and
the “SP2” light to flash.
Pressing the key for 3 seconds will activate the second set value and cause the “SP2” lamp to light.
The display or reactivation of the first set value SP1 will occur accordingly.
The set value can also be activated via an external signal (see Section 6.1, Display 9).
Important: The set value can be switched only when there is no alarm, i.e. the “Alarm Reset” lamp is
not lit.
Programming of the second set value SP2 see Section 7.1, fig. “SP2”.
“Motor Reset” key with lamp (10). The lamp lights up when there is a malfunction in the pump circuit
(malfunction see Section 6.2, Display 19 or 20).
“Over Temp” Lamp (11) lights if:
– the safety thermostat fitted in the unit has tripped (fluid temperature), see also Section 11.1, Fig. 2.
– the programmed max. limit value “S¯¯” from probe Sn1 or Sn2 is exceeded (Display S¯ ¯, see Sec-
tion 11.1, Fig. 2).
“Low Level” Display (9) lights up or flashes when the level of the heat transfer fluid in the unit is
insufficient (see also Section 6.2, Display 23).
“Flow” key with lamp (8)
When the key is pressed, the amount of flow in l/min or GPM(US) appears in the display to the right,
when flow measurement is present. Exception: in leakstop and drainage modes the display “---” ap-
pears.
Lighting of the lamp: see Section 6.2, Display 24 or 25.
Blocking of the set value. The set value “SP1” can be blocked as follows: press the “P” key twice
and then the “Alarm Reset” key once within 5 seconds. Deblocking occurs the same way.
4. Switching on
Once the main switch on the unit is switched on, a functional test will run for approx. 3 seconds. Dur-
ing the test, 6 dots will appear in the two display fields (Section 6.1, display 1).
If another display lights up, see Section 6.1.
After the test has been run successfully, the dots will disappear; the RT 45 is ready for operation. In
the right display field, “oFF” will appear.

78
Switch the unit on by pressing the “On/Off” key. The operating lamp (12, Fig. 1) will light up.
If the unit is fitted with a suction device and the phase sequence is incorrect, two phases will be ex-
changed automatically so that the pump operates in pressure mode. Should another display appear,
see Section 6.1.
5. Switching off
The unit can be switched off by pressing the “On/Off” key (12, Fig. 1) or by means of the timer.
The switching-off program will run automatically according to the temperature of the heat transfer fluid
as follows:
– All displays are extinguished, with the exception of the alarm lamp and “oFF” in the display to the
right. Pump and monitoring control system are switched off. The RT 45 is now in stand-by mode.
– The “On/Off” lamp flashes; the pump continues running. The unit continues to cool until the tem-
perature of the fluid has reached the programmed pump run-out temperature “PtE” (see Section
7.2). The pump and control system are then switched off. The RT 45 switches to stand-by mode. All
displays are extinguished, with the exception of the alarm display and “oFF”.
As the unit has to be switched off or back on again via the main switch, the unit will return to the
operational state in which it was before being switched off or will have to be up. It must be switched
on again via the “On/Off” key depending upon its programming. The same is true when the mains is
interrupted.
6. Displays
6.1 Operational Displays
1
The automatic operation checkout runs for approx. 3 seconds.
During the test, 6 dots appear in the display.
2
After the test described in Display 1 is completed, “oFF” will appear.
When the main switch is on, the RT 45 is on “Stand-by”.
3
– Steady light: unit in operation.
– Flashing light: pump run-out is activated.
4
If present, the timer is used to switch the unit on and off.
The unit can be switched on and off via the “On/Off” key at any time.
5
Unit is heating or cooling (upper or lower lamp lit).
. . . . . .
oFF
ON
OFF
HEATING
COOLING

79
6
Suction mode (except P 140S) or drainage by compressed air is activated when the upper lamp is lit.
7
Leak-stop mode is activated when the lower lamp is lit (except P 140S).
8
In normal operation, the temperature set value SP1 is displayed.
9
Indicates the set value temperature when input externally (0 to 10 V or 0/4 to 20 mA). Neither “SP1”
nor “SP2” lights up.
10
In computer operation, the unit address is displayed, e.g. “A 2”.
11
Heating and cooling procedures are controlled externally.
12
Displays the second programmed set value SP2 and the “SP2” lamp. It is controlled in accordance
with SP2 (see Section 7.1, Programming “SP2”).
13
Displays the actual temperature of the internal sensor Sn1 (fluid temperature).
The “S1” lamp lights up.
14
Displays the actual temperature of the external sensor Sn2 (usually consumer temperature). The “S2”
lamp lights up.
6.2 Malfunction Displays
Procedure when a malfunction occurs (Alarm):
1 Switch off the alarm signal (e.g. horn) by pressing the “Alarm Reset” key. The “Alarm Reset” light
will go out.
2 Correct the malfunction.
3 Turn off the alarm display by pressing the “Alarm Reset” key again.
SUCTION
LEAK STOP
SUCTION
LEAK STOP
XXX 120
SP1
XXX 120
SP1 SP2
XXX A 2
. . .
XXX
XXX 120
SP2
XXX90
S1
XXX90
S2

80
15
The display indicates when servicing is due (SErV).
The display disappears when the unit is switched on via the “On/Off” key, but will reappear as soon
as the unit is switched off.
When servicing has been completed, the elapsed time to the next service must be entered (see Sec-
tion 7.2, Programming “S.”).
16
If the unit is not equipped with the “Suction” mode accessory and the phase sequence is incorrect or
a phase is missing, the control will switch off for a few seconds, after it has been switched on via the
“On/Off” key and the “Phase” display will appear.
The malfunction must be corrected by exchanging the two phases on the unit connection and by
checking all 3 phases on correct supply voltage; this procedure must be performed by a professional
electrician. Switch the alarm off by pressing the “Alarm Reset” key.
17
The Sn1 sensor (fluid) is defective. Cooling is switched on.
The “Over Temp” and “Alarm Reset” lamps will light up.
18
The Sn2 sensor (consumer) is not connected or is defective. To correct this with the Sn2 sensor (fluid),
press the “Alarm Reset” key twice.
The fluid temperature shown in Display 13 will appear in the display to the left.
If it does not, connect sensor Sn2 or replace the defective sensor.
19
The current monitor of the pump motor has been tripped. Possible cause: motor overloaded (e.g.
pump running hard).
PHA SE
SEr U.
S 1
OVER
TEMP ALARM
RESET
S1
S 2
OVER
TEMP
ALARM
RESET
90
S1
PPU
MOTOR
RESET ALARM
RESET
XXX

81
20
a) One or more phases are missing.
b) The motor contactor has not picked up as it should.
c) The motor contactor has not released as it should.
21
The electromechanical safety thermostat in the unit has been tripped. The cooling system is switched
on. Turn off the alarm, according to the type of unit, by manually resetting the thermostat in the elec-
trical section and by pressing the “Alarm Reset” key.
Note: As long as the thermostat is activated, the temperature of the fluid at the time the thermostat
trips remains indicated in the display to the left. This value can be utilized for checking or adjusting the
trip temperature of the thermostat.
22
The programmed limit value S¯¯ (see Section 11.1, Fig. 2) has been exceeded at sensor Sn1 (fluid
temperature) or Sn2 (consumer temperature).
Cooling is switched on.
Note: S¯ ¯ is factory set according to the type of unit and corresponds to the maximum adjustable set
value.
23
Insufficient heat transfer fluid in the unit. Heat transfer fluid has to be refilled manually or automatically
(possible only when operating with water).
After the alarm is tripped, the unit continues to run according to the programmed refilling time set at
the factory (only with units operating with water) and switches off only if the required level of heat
transfer fluid has not been reached within this time. Pump and heating remain switched off until the
nominal level has been regained (protection against running dry).
The refilling time is limited to 30 s and the number of fillings limited to 3 per hour, in order to reduce
the consequences of a leak (e.g. broken hose). If the refilling time of 30 s is insufficient, the “Alarm
Reset” display will flash. Further refilling is then possible only by pressing the “Alarm Reset” key. The
“Alarm Reset” is activated by the interface using protocol 1.
Type P140S: programming of the refillings see “dtL”, “n.LE” Section 7.6.
– Unit with two level control switches (if present):
PU
ALARM
RESET
XXX
–tE
OVER
TEMP ALARM RESET
90
S1
S
––
OVER
TEMP ALARM
RESET
XXX
ALARM
RESET
LEU
LOW
LEVEL
XXX

82
Water as circulating fluid: if the level has dropped below the upper limit, the lamp “Low Level” will
flash during refilling.
When the level has dropped below the lower limit, the alarm will appear immediately. Pump and heat-
ing are switched off.
Thermal oil as circulating fluid: if the level has dropped below the upper limit, the lamp “Low Level”
will flash and a relay be activated, which can then be used, for example, to trigger an optic or acoustic
signal. The unit will continue to run normally.
When the level has dropped below the lower limit, the alarm will appear immediately. Pump and heat-
ing are switched off.
24
The flow monitor (if present) has been tripped. Heating is switched off.
For pumps with magnetic drive: the unit has to be switched off and on again at the main switch.
Causes of malfunction: insufficient or no flow (e.g. flow faltering at the pump or the viscosity of the
heat transfer fluid is too high at start-up).
25
The programmed lower limit value of the rate of flow in the flow meter (if present) is too low.
The heating is switched off.
26
The programmed upper limit value of the sensor Sn1 (fluid temperature) has been exceeded (see
Section 11.1, Fig. 2).
Unit and control will continue to run normally.
27
The temperature registered by sensor Sn1 (fluid temperature) has fallen below the laver limit pro-
grammed (see Section 11.1, Fig. 2).
FLo
FLOW ALARM
RESET
XXX
FLC
FLOW
XXX
S1
–
ALARM
RESET
S1
S1–
ALARM
RESET
XXX
S1

83
28
The programmed upper limit value of the sensor Sn2 (consumer temperature) has been exceeded (see
Section 11.1, Fig. 2).
Unit and control will continue to run normally.
29
The temperature registered by sensor Sn2 (fluid temperature) has fallen below the laver limit pro-
grammed (see Section 11.1, Fig. 2).
30
Malfunction at heating contactor (H1 or H2).
Note: The alarm is activated when the heating contactor does not pick up despite receiving the heating
signal, or when it does not release when the signal is no longer sent (e.g. contacts have welded toge-
ther).
31
Set value or actual value too high for leak-stop mode. For correction, see Section 3, “Suction/Leak
Stop” key.
Unit and control will continue to run normally. By pressing the “Alarm Reset” key, the display will
disappear.
32
The external set value signal has been interrupted, is not present or is outside the defined range. Cool-
ing is switched on.
XXX H1(H2)
ALARM
RESET
SP ILL
ALARM
RESET
S2
–
ALARM
RESET
XXX
S2
S2–
ALARM
RESET
XXX
S2
XXX S P
ALARM
RESET

84
33
Analog/Digital-Converter defective.
34
EPROM defective.
35
RAM microprocessor defective.
36
External RAM defective.
37
Calibration values lost. The control insert has to be recalibrated in the factory.
38
Unit data in memory print has disappeared or flat cable not connected.
39
Battery timer module defective.
AdC Err
ALARM
RESET
St.1 Err
ALARM
RESET
St.2 Err
ALARM
RESET
St.3 Err
ALARM
RESET
CAL Err
ALARM
RESET
dAt Err
ALARM
RESET
CLC Err
ALARM
RESET

85
40
The initialising data are lost.
The control system has to be reajusted in our workshops.
41
Undervoltage. Check power supply with rating plate.
42
Two different flow meters are mounted. The heating is switched off.
Inl dAt
ALARM
RESET
ALARM
RESET
FCL Err

86
7. Programming
Programming is done via the “∆” and “∇” keys to raise or
lower the alignment values or to reach the desired align-
ment in the appropriate level (e.g. “Ltr” or “GAL”, see Sec-
tion 7.2, fig. “VAL”).
7.1 Operator Level “SEt SEL”
For programming the temperature-probe limit values (SEt
SEnsor Limits, see Section 11.1, Fig. 2) and the parameter
for measuring flow rate (if present).
This level is reached by pressing the “P” key for 3 s.
To go back one step, press the “P” key for a maximum of
2 s.
To return to the operating level with display of set and actual
values from any desired level, press the “P” key for 3 s.
Upper limit value of fluid temperature (°C) with reference to
the set value. Alarm when exceeded. 0 = function off.
Lower limit value of fluid temperature (°C) with reference to
the set value. Alarm when value falls below.
0 = function off.
Upper limit value of consumer temperature (°C) with refer-
ence to the set value. Alarm when exceeded.
0 = function off.
Lower limit value of consumer temperature (°C) with refer-
ence to the set value. Alarm when value falls below.
0 = function off.
If measurement of flow rate is available:
minimum flow in l/min. Alarm when value falls below.
Second set value “SP2” (max. S¯¯, see Section 7.2).
With cascade control, the fluid temperature can be limited
(max. S¯¯, see Section 7.2) via the external sensor Sn2.
0 = function off.
With cascade control, the fluid temperature can be limited
via the external sensor Sn2.
0 = function off.
P3 s
SEt SEL
PS1–0
0 to 99
PS1–0
0 to 99
PS2–0
0 to 99
PS2–0
0 to 99
PFLC 2
2 to 50
PSP2 0
0 to S ––
PLl–0
0 to S ––
PLl–0
0 to S ––

87
Active parameter set (for explanation, see Section 11.3).
Appears only when the external sensor Sn2 is not connec-
ted.
Address of the RT 45 unit with interface. Appears only when
the unit is connected to the computer.
Setting ranges SPI 32 to 99.
Mannesmann Demag CAN 13 to 17.
Profibus DP 3 to 99.
7.2 Function Level “SEt Fun”
For programming functions (SEt Functions). This level is
reached from “SEt SEL” by pressing the “∆” and “∇” keys
simultaneous.
The desired setting can be reached by pressing the “Up” or
“Down” keys.
To move backwards: press the “P” key for a maximum of
2 s.
To return to the operating level with display of the set and
actual values from any desired display, press the “P” key for
3 s.
Temperature display in °C or °F.
Pump run-out temperature. Before switching the unit off
(Off) or to suction mode (Suction), the fluid is cooled to this
temperature. 0=function off: leak-stop and suction not pos-
sible.
P140 and P140S with direct cooling: PtE = 0. Provides
automatic pressure relief for 30 seconds after the unit is
switched off via the OFF button.
Suction or drainage time by compressed air time in s.
Display if option present.
Cycle time for heating in s.
Cycle time for cooling in s.
Max. adjustable set value and electronic safety thermostat.
Circulating fluid: yES = Water, no = thermal oil.
PPAr 5
1 to 11
P3 s
SEt SEL
PdEG CEL
CEL/FAr
PPtE 0
0 to 80 (°C)
0 to 176 (°F)
PSut 0
0 to 500
Pcth 1
1 to 30
Pctc 1
1 to 30
PS
– – 0
1 to 420 (°C)
34 to 788 (°F)
PH2O yES
yES/no
SEt Fun
∆ ∇ 3 s
+
PAdr 1
0 to 99
P

88
If flow rate measurement present: unit of measurement in
l/min or GPM (US gallons).
If flow rate measurement is available: kinematic viscosity of
the heat transfer fluid at 20 °C in mm2/s. With water as heat
transfer fluid (Programming “H2O yES”), the value 1.0 is
aligned automatically.
Appears only if the RT 45 is equipped with interface. Proto-
cols:
1 Arburg 4800 Bd 20 mA-CL
2 Engel 4800 Bd 20 mA-CL
3 Bühler Datacess 4800 Bd RS 422 spec.
4 Firsttech 4800 Bd 20 mA-CL
5 Stork 1200 Bd 20 mA-CL
6 Ferromatik Milacron 4800 Bd 20 mA-CL
7 Klöckner Desma 4800 Bd 20 mA-CL
8 Demag Ergotech 4800 Bd 20 mA-CL
9 Krauss-Maffei 4800 Bd 20 mA-CL
10 Dr. Boy 4800 Bd RS 232
11 Euromap 17 9600 Bd RS 485
12 Euromap 17 4800 Bd RS 485
13 Euromap 17 2400 Bd RS 485
14 Euromap 17 1200 Bd RS 485
15 Sächsische Kunststofftech. 4800 Bd RS 485
16 CAN Demag Ergotech 615 kBit/s CAN RS 485
17 Müller-Weingarten 4800 Bd RS 422 spec.
18 Engel 4800 Bd RS 232
19 SPI 19200 Bd RS 485
20 SPI 9600 Bd RS 485
21 SPI 4800 Bd RS 485
22 SPI 2400 Bd RS 485
23 SPI 1200 Bd RS 485
24 Bühler Dataspeed 4800 Bd RS 485
25 Frech Datacontrol 9600 Bd RS 485
26 Frech Datacontrol 4800 Bd RS 485
27 Frech Datacontrol 2400 Bd RS 485
28 Frech Datacontrol 1200 Bd RS 485
29 CAN Demag Ergotech 500 kBit/s CAN RS 485
30 CAN Demag Ergotech 250 kBit/s CAN RS 485
31 CAN Demag Ergotech 125 kBit/s CAN RS 485
32 Eurom. 17 Billion 9600 Bd RS 485
33 Profibus DP 12 MBit/s RS 485
34 Ferromatic Milacron 4800 Bd Rs 485
Input of next service date in intervals of 10 hours (max.
99990 h). 0 = function off.
PVIS 1.0
1.0 to 200
PPro 1
1 to...
PS. 0
0 to 99990
P
PVAL Ltr
Ltr/GAL

89
7.3 Alarm Level “SEt ALA”
Activates the alarm relay (common alarm), if present, follow-
ing malfunction.
The alarm relay is always activated when the limit values
“S¯¯”, “¯te”, “S P” are exceeded, upon sensor break
down (Pt100-probe also with short circuit), andwhen“S 1”,
“S 2” are exceeded.
The desired setting can be reached by pressing the “∆” or
“∇” keys.
To move backwards: press the “P” key for a maximum of
2 s.
To return to the operating level with display of the set and
actual values from any desired display, press the “P” key for
3 s.
“PoS.” Relay 1, 2 or 3 (according to programming in the
System Level “SEt SyS” Section 7.6) is activated in
the event of alarm
“PoS” Relay 1, 2 or 3 (according to programming in the
System Level “SEt SyS” Section 7.6) is released in
the event of alarm. For all of the following malfunc-
tions:
“ALA.” Relay is activated when malfunction occurs.
“ALA” Relay is not activated.
If the alarm has to been reset once and the malfunction still
exists, the alarm relay will be reactivated after a pro-
grammable time between 1 and 600 s until the malfunction
has been corrected.
After the correction of the malfunction the “Alarm Reset”
key has to be pressed twice in order to eliminate the alarm
and the alarm display. 0 = function off.
Malfunction at heating stage 1.
Malfunction at heating stage 2. Appears only with units hav-
ing 2 heating stages.
The amount of flow has fallen below its lower limit value.
Appears only if measurement of flow rate is present.
The flow monitor has been tripped. Appears only when flow
monitoring and/or print «digital inputs» are present.
Insufficient heat transfer fluid in the unit.
P3 s
SEt SEL
PALA PoS.
PoS/PoS.
PH1 ALA.
ALA/ALA.
PH2 ALA.
ALA/ALA.
PFLC ALA.
ALA/ALA.
PFLo ALA.
ALA/ALA./no
PLEV ALA.
ALA/ALA.
SEt Fun
∆ ∇
∆ ∇
SEt ALA
3 s
+
Prtr 0
0…600s.

90
Programmed pump motor current has been exceeded.
The upper limit value S1 of sensor Sn1 (fluid temperature)
has been exceeded.
The value registered by sensor Sn1 has fallen below its
lower limit.
The upper limit value S2 of sensor Sn2 (consumer tempera-
ture) has been exceeded.
The value registered by sensor Sn2 has fallen below its
lower limit.
PS2–ALA.
ALA/ALA.
P
ALA/ALA.
PS2–ALA.
ALA/ALA.
PS1–ALA.
ALA/ALA.
PS1–ALA.
ALA/ALA.
PPU ALA.

91
7.4 Offset Level “SEt OFS”
Offset compensation (deviations from measuring lines,
measurement errors from sensors, etc.)
The desired position can be reached by pressing the “∆”
key or “∇” key. To move backwards: press the “P” key for
a maximum of 2 s.
To return to the operating level with display of the set and
actual values from any desired display, press the “P” key for
3 s.
Offset sensor Sn1 (°C/°F).
Offset sensor Sn2 (°C/°F).
Offset sensor Sn3 (°C/°F). Appears only when sensor is
present.
Offset external set-value input (°C/°F). Appears only when
analog set-value input is present.
Offset recorder output 1 (°C/°F). Appears only when analog
recorder output is present.
Offset recorder output 2 (°C/°F). Appears only when analog
recorder output is present.
PS1 0
±20 (°C)
±36 (°F)
PS2 0
PS3 0
PSP 0
Po1 0
Po2 0
SEt OFS
P3 s
SEt SEL
SEt Fun
∆ ∇
∇
SEt ALA
∇
∆
∆
3 s
P
+
±20 (°C)
±36 (°F)
±20 (°C)
±36 (°F)
±20 (°C)
±36 (°F)
±20 (°C)
±36 (°F)
±20 (°C)
±36 (°F)

92
7.5 Parameter Level “SEt PAr”
If none of the 10 parameter sets in “SEt SEL” are satisfac-
tory, an individual control parameter set can be adjusted at
this level. The values entered at “SEt PAr” become active
only if no external sensor Sn2 is attached and the value
“PAr” in “SEt SEL” is “11” (see Section 7.1).
This level can be reached by pressing the keys “Timer”, “∆”
and “∇” for at least 3 s simultaneously.
The desired setting can be reached by pressing the “∆” or
“∇” key.
To move backwards: press the “P” key for a maximum of
2 s.
To return to the operating level with display of the set and
actual values from any desired display, press the “P” key for
3 s.
Proportional band “Heating” in %.
Value with reference to 400 °C/750 °F.
Proportional band “Cooling” in %.
Value with reference to 400 °C/750 °F.
Derivative action time “Heating” in s.
Derivative action time “Cooling” in s.
Lead time “Heating” in s.
Lead time “Cooling” in s.
Neutral zone in °C/°F above the set value. In this zone, cool-
ing is not activated.
Cooling command suppression in ms. The cooling command
is suppressed during the time period set.
Note: The lead time set must always be at least 4 times
longer than the corresponding derivative action time.
PPbh 3.0
0.0 to 50.0
PPbc 3.0
0.0 to 50.0
Pdh 0
0 to 999
Pdc 0
0 to 999
Plh 300
0 to 9999
Pcdt ...
0 to 200
SEt PAr
P
∆∇
Plc 300
0 to 9999
P– – –
– – – 1
+ + 3 s
0 to 9 (°C)
0 to 16 (°F)