FIT-1003-M Operation & Maintenance Manual
Paragon Controls Incorporated
2
Revision Level 002
2. CALIBRATION
It is recommended that the DPT ZERO Calibration be performed upon installation. Span Calibration is
not affected by the Zero Calibration. The Span of the unit has been factory calibrated and should only be
adjusted using high accuracy test equipment.
Refer to sections 1.1.1 and 1.1.2.
Zero Calibration Equipment Required:
-
DMM (Digital Multi Meter)
Span Calibration Equipment Required:
-
Low pressure air source (Paragon PS-100 or equivalent)
-
Manometer for measuring low pressure
-
DMM (Digital Multi Meter)
2.1.
DPT ZERO CALIBRATION
The following zero calibration procedure can be performed without the need to perform a span
calibration.
Step 1.
Remove the cover by removing the 4 mounts screws.
Step 2.
Apply power to the transducer and verify Power Status LED is illuminated.
Step 3.
Using a DMM set to voltage mode, monitor between TP1 (GND) and TP2 (DPT).
Step 4.
With zero pressure applied, adjust
DPT ZERO
potentiometer for a reading of
0.0±.001vdc.
2.2.
OUTPUT SPAN CALIBRATION
Note: It is recommended that a zero calibration be completed before performing a span calibration.
2.2.1. 0-5VDC
Output
Procedure
Step 1.
Using a DMM set to voltage mode, monitor between (
SIG)
and (
-)
terminal.
Step 2.
Apply full scale pressure (Value shown on the transducer label) to the Total (High)
Pressure port and adjust the
SPAN
potentiometer for an output reading of
5±.01vdc.
Step 3.
Reinstall the cover and 4 mounting screws.
2.2.2. 0-10vdc
Output
Procedure
Step 1.
Using a DMM set to voltage mode, monitor between (
SIG)
and (
-)
terminal.
Step 2.
Apply full scale pressure (Value shown on the transducer label) to the High
Pressure port and adjust the
SPAN
potentiometer for an output reading of
10±.01vdc.
Step 3.
Reinstall the cover and 4 mounting screws.
2.3.
MAGNEHELIC GAUGE ZERO CALIBRATION
2.3.1. Zero
Calibration
Step 1.
With no pressure applied, verify magnehelic gauge reads zero on the meter face. If
not, use a small slotted screw driver and adjust the slotted screw located at the end
of the indicating needle until a zero reading is achieved.
