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3

* Setting internal parameters.

Next to the adjustment of the set point, some other internal settings are possible, like differential,
sensor-offset, set point range.
By pushing the 

DOWN

 key more than 10 seconds, you enter the 'internal programming menu'. In

the  left  display  the  upper  and  lower  segment  are  blinking.  With  the 

UP

  and 

DOWN

  keys  the

required  parameter  can  be  selected  (see  table  for  the  parameters).  If  the  required  parameter  is
selected,  the  value  can  be  read-out  by  pushing  the 

SET

  key.  Pushing  the 

UP

  and 

DOWN

  keys

allows you to change the value of this parameter.
If after 20 seconds no key is pushed, the 

ALFA(NET) 13 DP

 changes to it's normal operation mode.

* Parameters ALFA(NET) 13 DP Pt100.

Para-
meter

Description Parameter

Range

Standard
Value

04
10
11

21
22
23
24
25
26
27

28

Offset temperature sensor
Startup delay after power failure
Relay on at sensor failure

Differential maximum alarm
Differential minimum alarm
Time delay maximum alarm
Time delay minimum alarm
Offset setpoint High (Max.)
Offset setpoint Low (Min.)
Relay alarm function

(0=watchdog 1=regulated alarm)

Auto reset alarm after temperature recovering 

(0=hold)

-15.0..+15.0

C

0..99 Minutes
0 = No, 1 = Yes

0.1..15.0

C

0.1..15.0

C

0..99 Minutes
0..99 Minutes
-10.0..+10.0

C

-10.0..+10.0

C

0..1

0 = No, 1 = Yes

0.0

0
0

1.0
1.0

0
0

0.0
0.0

0

0

90
95
96
97
98
99

Network number
Software version
Production year
Production week
Serial number (x1000)
Serial number (units)

1..250
0..255
00..99
1..52
0..255
0..999

1

-
-
-
-
-

* Function diagram.

Содержание ALFA 13 DP Pt100

Страница 1: ...he power supply a self test function is started As this test is finished the measured temperature appears in the display The relay is normally activated and with an alarm it is deactivated and the led set high will be lit in the display Control The ALFA 13 DP Pt100 alarm thermostat can be controlled by three push buttons on the front SET view change set points and reset of alarm UP increase a set ...

Страница 2: ...will recover within the delay time no alarm occurs If an alarm will continue after the delay time the led set high burns continuously and the display alternates between the temperature and H for high alarm max or L for low alarm min to indicate the alarm To reset an alarm press the SET key Adjustment sensor The sensor can be adjusted by using the Sensor Offset parameter 04 Indicates the ALFA NET 1...

Страница 3: ...ges to it s normal operation mode Parameters ALFA NET 13 DP Pt100 Para meter Description Parameter Range Standard Value 04 10 11 21 22 23 24 25 26 27 28 Offset temperature sensor Startup delay after power failure Relay on at sensor failure Differential maximum alarm Differential minimum alarm Time delay maximum alarm Time delay minimum alarm Offset setpoint High Max Offset setpoint Low Min Relay a...

Страница 4: ...4 Dimensions Connections Address VDH Products BV Tel 31 0 50 30 28 900 Produktieweg 1 Fax 31 0 50 30 28 980 9301 ZR Roden Email info vdhproducts nl The Netherlands Internet www vdhproducts nl ...

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