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116 SMV 3000 Transmitter User’s Manual 1/99
10.4 Calibrating PV1 and PV2 Range Values, Continued
Procedure, continued
Figure 28 Typical PV1 or PV2 Range Calibration Hookup
24Vdc
Power
Supply
-
+
24Vdc
Power
Supply
-
+
Low
Pressure
Port
METER
SIGNAL
L
High
Pressure
Port
Absolute Pressure
Readout Device
(Smart Meter)
ST 3000 Model STA140
Absolute Pressure Transmitter
with Smart Meter
* When using a pressure source
with an absolute readout device,
such as the ST 3000 transmitter
shown, you must calibrate the LRV
for the reference absolute pressure
(or ambient atmospheric pressure)
and the URV for the absolute
pressure span.
Dead Weight Tester
or
Precision Pressure Source
(For PV1 Calibration)
Vacuum/Gauge Source
or
Precision Pressure Source *
(For PV2 Calibration)
To Low
Pressure
Port
To High
Pressure
Port
250 Ω
250 Ω
SCT
SFC
- Black
+ Red
SMV 3000
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