Campbell Scientific CR23X Micrologger - Manual (Page 29)

CR23X MICROLOGGER OVERVIEW
OV-19
An instruction is deleted by advancing to the
instruction number (P in display) and keying #D
(Table 4.2-1).
To change the value entered for a parameter,
advance to the parameter and key in the
correct value then press A. Note that the new
value is not entered until A is keyed.
SAMPLE PROGRAM 2
Instruction Parameter
(Loc:Entry) (Par#:Entry) Description
1 Enter Program Table 1
01:60 60 second (1 minute) execution interval
Key # D until 01:P00 Erase previous Program before
is displayed continuing.
01:P17 Measure panel temperature
01:1 Store temp in Location 1
02:P14 Measure thermocouple temperature
(differential)
01:1 1 repetition
02:21 Range code (10 mV, 60 Hz Rejection)
03:5 Input channel of TC
04:1 TC type: copper-constantan
05:1 Reference temp is stored in Location 1
06:2 Store TC temp in Location 2
07:1 Multiplier of 1
08:0 No offset
03:P92 If Time instruction
01:0 0 minutes into the interval
02:60 60 minute interval
03:10 Set Output Flag 0
The CR23X is programmed to measure the thermocouple temperature every sixty seconds.
The If Time instruction sets the Output Flag at the beginning of every hour. Next, the Output
Instructions for time and average are added.
Instruction # Parameter
(Loc.:Entry) (Par.#:Entry) Description
04:P77 Output Time instruction
01:110 Store Julian day, hour, and minute
05:P71 Average instruction
01:1 one repetition
02:2 Location 2 - source of TC temps. to be
averaged
06:P92 If Time instruction
01:0 0 minutes into the interval
02:1440 1440 minute interval (24 hrs.)
03:10 Set Output Flag 0
07: P77 Output Time instruction
01:100 Store Day of Year
08: P73 Maximize instruction
01:1 One repetition
02:10 Output time of daily maximum in hours and minutes
03:2 Data source is Input Storage Location 2.