Pressure Systems, Inc. Model 9046 User’s Manual
Page 18 www.PressureSystems.com
2.8 Set Temperature Units
Set temperature units for all temperature channels. The ‘v’ command is used with array index aa
= 11 (hex) and new coefficient index = 0b (hex).
Command:
v0110b dd
dd = 00 for degrees C, dd = 01 for Fahrenheit.
Normal: A
Response:
Error: N08
2.9 Read Temperature Units
Read temperature units for all temperature channels. ‘u’ command is used with array index aa =
11 (hex) and new coefficient index = 0b (hex).
Command:
u0110b
Normal
:
00 = Degrees C, 01 = Fahrenheit
Response:
Error: N08
2.10 Write EU Filter Parameter
A software filter stage can be configured individually for each channel using the v command
with coefficient index number 52 hex to write the n value (max = 100) for filtering EU data
(EU_delivered = EU_old + EU_new/n - EU_old/n). The factory default value is n = 1 (filter turned
off):
Note
n values greater than 15 – 20 will slow down the step response
below what is normally used for thermocouples. Values greater
than 10 should be evaluated on a case by case basis. EU values
are returned 10 times / second regardless of filter n value.
