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Operating Instructions
3-3
13
Range is currently displayed, the MAX minus MIN value.
14
Instrument is displaying the Average reading over the last 1000 measurement
cycles.
15
Step Function: There are 10 equal steps between 0°C and Span. Source
continuously steps up and down. There is a 5 second dwell time on each step.
16
MAX statistic. Displays the maximum reading over the last 1,000 measurement
cycles.
17
Slow Ramp: Source Channel continuously cycles from 0°C to Span and then back to
0°C. The ramp rate is 5°C per second.
18
MIN statistic. Displays the minimum reading over the last 1,000 measurement
cycles.
19
Fast Ramp: Source Channel continuously cycles from 0°C to Span and then back to
0°C. The ramp rate is 50°C per second.
20
Displays the number of the current 20 possible presets, (0-19).
21
PRST: Preset is active. Each preset value includes Source Value, TC Type, (no TC
type if in mV), Units, Mode, Span (0% and 100%), and preset number.
22
Trend Indicators, Read channel.
23
Minus sign, Read channel.
24
Read channel Label.
25
Minus sign, Source channel.
26
Source channel Label.
Figure 3: LCD Display Description
The LCD can display error information about the current measurement, as shown in
Figure
4
.
D
ISPLAY
D
ESCRIPTION
OPEn
No thermocouple probe is connected
O rnG
Over Range: The applied temperature is greater than the maximum
temperature for the selected thermocouple type
U rnG
Under Range: The applied temperature is less than the minimum
temperature for the selected thermocouple type
Figure 4: LCD Error Indications
Summary of Contents for CL940A
Page 39: ...Appendices B iii Thermocouple Type K ...
Page 40: ...Appendices B iv ...
Page 41: ...Appendices B v Thermocouple Type J ...
Page 42: ...Appendices B vi ...
Page 43: ...Appendices B vii Thermocouple Type T ...
Page 44: ...Appendices B viii ...
Page 45: ...Appendices B ix Thermocouple Type E ...
Page 46: ...Appendices B x ...
Page 48: ...Appendices B xii ...
Page 50: ...Appendices B xiv ...
Page 51: ...Appendices B xv Thermocouple Type R ...
Page 52: ...Appendices B xvi ...
Page 53: ...Appendices B xvii Thermocouple Type S ...
Page 54: ...Appendices B xviii ...
Page 55: ...Appendices B xix Thermocouple Type G ...
Page 56: ...Appendices B xx ...
Page 57: ...Appendices B xxi Thermocouple Type C ...
Page 58: ...Appendices B xxii ...
Page 59: ...Appendices B xxiii Thermocouple Type D ...
Page 60: ...Appendices B xxiv ...
Page 61: ...Appendices B xxv Thermocouple Type P ...
Page 62: ...Appendices B xxvi ...
Page 63: ...Appendices B xxvii Thermocouple Type L ...
Page 64: ...Appendices B xxviii ...