Endress+Hauser Prothermo NMT532, Руководство по эксплуатации

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Prothermo NMT532 Operation
Hauser 55
Code Display Details
The element conversion formula is selected for when another brand's
average temperature probe is connected to the NMT532.
L
CAUTION
Changing the parameters:
NMT532 is comprised of spot, element array and PT100 element
types.
‣
Changing the parameters may cause erroneous calculations or
unnecessary error displays.
Element conversion
formula Pt100 (formula above 0 °C):
R = -0.580195 x 10-4 x T2 + 0.390802 x T +100
Pt100 (formula below 0 °C): R = -4.2735 x 10-10 x T4 + 4.273 x 10- 8
x T³ - 0.58019 x 10- 4 x T² + 3.90802 x T + 100
Cu90: R = 0.3809 x T + 90.4778
Cu100: R = 0.38826 x T + 90.2935
PtCu100: R = 3.3367 x 10-7 x T3 - 2.25225 x 10-5 x T2 +0.38416 x T
+ 100.17
R: Resistance, T: Temperature
VH78 Average Number
(Sampling number) Item type Read / Write
Default 1
Range 1 to 10
The number of resistance samplings from all temperature
measurement elements can be changed, including that of the reference
resistance installed on the circuit of the main unit.

Increasing the sampling number will allow for a more accurate
measurement, but it will slow down the device's overall scan
time. Element selection frequency: Approx. 2 seconds/element,
sampling maximum element number 21 (Number of elements:
16, Internal reference resistance: 5)
VH79 Protect Code
(Access code) Item type Read / Write
Default 0
Range 0 to 999
Access code 530 enables selection and writing.
8.3.9 Device setting 1: VH80-VH89
Code Display Details
VH80 Present Error
(Error
information) Item type Read only
Screen where error information is displayed. The following error codes will be
displayed. For details, refer to "Troubleshooting" .
Error
code 0 No error presence
1 Common line open
3 #1 element open
4 #1 element short
5 #2 element open
6 #2 element short
7 #3 element open
8 #3 element short
9 #4 element open
10 #4 element short