Meriam M1500 Digital Pressure Transmitter - Manual (Page 11)

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A second pressure port is present on single sensor models but has been factory sealed with an
appropriate venting plug. Do not remove the plug for any reason. G I, C I , and A I units cannot be converted to other
pressure types in the field. See drawing below.
Dual Dual Dual Dual Pressure Sensor Models Pressure Sensor Models Pressure Sensor Models Pressure Sensor Models
Dual pressure sensors are available for digital communication models only. Any combination of G I, C I or A I sensors
can be accommodated.
Dual pressure models use the P1 port for pressure sensor 1 and the P2 port for pressure sensor 2. See the example
below.
Installation and Operation Installation and Operation Installation and Operation Installation and Operation
M1500 Digital M1500 Digital M1500 Digital M1500 Digital Com Com Com Communication munication munication munication Model Model Model Models ss s
Digital communication delivers the best possible accuracy to compatible receiving devices. M1500 models are
available with RS-232, RS-485 and USB. PC configuration software is included with shipment to support set up of
engineering unit, damp rate and other parameters and functions. Send / receive functions are supported by MSP, a
DLL and LabVIEW
® VIs. To program your system using these protocols, see the resources available on the product
CD ROM and at www.meriam.com under “Resources / Application Notes”.
The M1500 pressure default network address is 40 (0x28 Hex) and module address is 64 (0x40 Hex) for MSP and
LabVIEW
®
. USB units have communication port addresses assigned by the host PC.
Digital M1502 models have two pressure sensors in one enclosure. The sensors can be any combination of G
I , C I or
A I types. A single command from MSP returns both pressure signals from the M1502.
G I , C I and A I Manifold
Permanent plug.
Do Not Remove
Dual Pressure Sensor Manifold
Example: Model M1500-A I 0017-G I 0030
P1 P2
G I 0030 A I 0017