Max Machinery 290 Series Frequency (269, 294 and 295) - Manual (Page 6)

6 IH 295-000-350 • rev. 6/2011 • ©2010-11 Max Machinery, Inc.
Model 295, 296 — Mechanical Installation
1. The transmitter is attached to the flow meter’s threaded magnet shield. Hand tighten only. (~ 3 ft-lb)
2. The transmitter lid has four thread paths. To realign the cable, remove the lid and rotate up to 180°
and retighten using an alternate starting point. Tighten to compress the O-ring seal.
Removal
1. Remove electrical connections
2. Unscrew transmitter, using a wrench if necessary.
Removal note: The transmitter does not need to be removed from the flow meter for any field servicing or adjustments.
Normally, the flow meter and transmitter are shipped back to the factory for calibration or service as a unit. If the
transmitter needs to be removed from the flow meter for installation, be sure to retighten the transmitter snugly in order
to ensure proper sensor alignment.
Moisture Protection
On all models, the housing is designed as a liquid and vapor-tight enclosure. There are O—ring seals
at the lid and possibly also the base of the housing — these need to be fully seated. A properly sealed
transmitter will prevent the formation of damaging moisture inside the housing.
Turck connector Model: The connector is sealed to the lid at the factory and is ready for use.
NPT Model: To ensure a moisture-tight seal, apply appropriate sealant to the threads at installation.
Electrical Installation — Wiring
The electrical connector versions are pre-wired inside the transmitter and ready to accept a mating
cable (available from the factory). The liquid-tight, NPT models need to be wired during installation
as shown in the tables below:
an ISO 9001:2008 certified company
Installation - Model 295, 296
294 NPT model 295/296 NPT Model Turck Connector
Mating Cable
Wire Color
Pin #
Case Ground In-lid Case Blue 3
Common 1 Com Black 4
Power 5-26 Vdc 2 V+ Brown 1
Pulse Output 3 Ph A White 2
N/A NC Grey 5
Frequency
Single Phase
294 NPT model 295/296 NPT Model Turck Connector
Mating Cable
Wire Color
Pin #
Case Ground In-lid Case Blue 3
Common 1 Com Black 4
Power 5-26 Vdc 2 V+ Brown 1
Output Phase A 3 Ph A White 2
Output Phase B 4 Ph B Grey 5
Frequency
Quadrature
2 1
4
5
3
2 1
4
5
3