Data communications
The command ´f1 P18´ previously used for maximum / minimum / average val-
ues with date and time-of-day has been converted for use in the table format.
f1 P18 (
individual channels with
Mxx P18)
MS;MEAS.Val;MAXVAL.;MINVAL.;AVERAGE;NUMBER;MAX-TIME;MAX-DATE;MIN-TIME;MIN-DATE
00;20,044;150,007;20,038;-;0;02:31;05.01;02:32;05.01
01;26,961;27,017;26,952;-;0;02:33;05.01;02:45;05.01
02;942,6;942,7;942,5;-;0;02:43;05.01;02:46;05.01
11;54,28;54,32;53,99;-;0;02:45;05.01;02:33;05.01
21;17,06;17,06;17,02;-;0;02:46;05.01;02:32;05.01
Certain measured value outputs in list format (commands p, P01..P03, P-04,
Sx) are still available but are now output with an additional decimal place.
16.6 Atmospheric pressure
The atmospheric pressure needed to compensate the Pt100 psychrometer is
measured internally. (see 11.2) If it is being used, this is indicated by symbol
P.
with the dot flashing. As and when necessary (e.g. when measuring in con-
duits) the atmospheric pressure can also be programmed. (see 9.5)
To monitor, check, or enter atmospheric pressure
Atm. pressure P. 947 mbar
To return from programmed to measured value press
<CLR>
17. OPTION FE - FUNCTION EXTENSION
Measuring range ´P314´
(B96) has been extended to:
Measuring range -200.000 to +560.000 °C
Accuracy: ± 0.010 K ± 1 digit (in range -50 to +560°C)
There is also an additional
measuring range ´P214´
(B69):
Measuring range -200.00 to +850.00 °C
Accuracy:
± 0.05 K ± 1 digit ( in range -100 to +850°C)
Measured value correction by modifying the coefficients
of Pt100 sensors.
When calibrating a Pt100 sensor in a calibration laboratory any deviation de-
tected can be managed by adjusting the sensor on the basis of the four real
coefficients in the Van Dusen equation.
The easiest way is to use the ALMEMO
®
-Control software package.
This incorporates the following terminal commands :
Determine the four coefficients of a Pt100 sensor using command P27.
Select the input channel
E00
Determine the coefficients
P27
Pt100 COEFFICIENTS:
00: A = 3.90830E-3
00: B = -5.77500E-7
00: C = -4.18300E-12
00: R0 = 100.01234
ALMEMO
®
1036
35
