Ashcroft ATE-2 - Handheld Calibrator - Manual (Page 44)

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Dual sensor differential measurements will have similar accuracy
specifications.
To access Dual Module Functions:
Press MENU key
Use DOWN or UP ARROW to highlight “Modes…”
Press ENTER
Use DOWN or UP ARROW to highlight “Dual module functions…”
Press ENTER
Press DOWN or UP ARROW to highlight “Differential CH1-CH2”,
“Differential CH2-CH1”, or “Additive (CH1+CH2)”
Press ENTER
Display will show a single value indicating desired pressure
calculation.
The HHC can be used with most standard RTD (Resistive Tem-
perature Detector) probes to provide precision temperature mea-
surements. An XXX –RT1 or XXX –RT2 Quick-Select module
is needed to interface an RTD probe to the HHC. There are two
XXX -RT Quick-Select module types available to support RTD
resistance levels and capabilities indicated in the table below:
SECTION 15 i. DUAL MODE FUNCTION CONT.
Dual sensor mode
Differential CH1-CH2
Differential CH2-CH1
Additive (CH1+CH2)
425.4
1+2 inH2O
Modes
Dual module functions…
Percent error…
Switch testing…
Communications…
SECTION 15 j. RTD TEMPERATURE
MEASUREMENT