Pressure Systems 9046 - Manual (Page 24)

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.