Max 164 User Manual

INSTRUCTION MANUAL

164 SERIES

SIGNAL CONDITIONER/CONVERTER

TABLE OF CONTENTS

General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 2

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 3

Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 4

Wiring and Control Diagram . . . . . . . . . . . . . . . . . . . . Pg 5

Frequency to DC Converter Calibration . . . . . . . . . . . Pg 6-7

Typical Flow Meter K-factors . . . . . . . . . . . . . . . . . . . Pg 8

Output Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 9

Input Voltage Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 10

Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . Pg 11

Mounting Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . Pg 12

Schematics:

164-110-200

164-110-350 © 2003, Max Machinery, Inc.

Max Machinery, Inc. reserves the right to make changes to the product in this Instruction
Manual to improve performance, reliability, or manufacturability. Consequently, contact
MMI for the latest available specifications and performance data.

Although every effort has been made to ensure accuracy of the information contained in this
Instruction Manual, MMI assumes no responsibility for inadvertent errors.

GENERAL DESCRIPTION

The Max 164 Series Signal Conditioner/Converter is designed to convert a flow meter
transmitter signal to a properly scaled and stabilized voltage or current output. An on-board
power supply furnishes ± 15V to the transmitter. The Model 164 is powered by a 110 VAC or
220 VAC source. The unit is available as a stand alone circuit board only or in Nema 4 or
explosion proof enclosure.

MODEL Description
164-110-010 Voltage or Frequency input signal

conditioner, open P.C. board assembly.
Use with Model 272, 284, 286 or 289
transmitters. Provides 0-2 V, 0-10 V

and 4-20mA outputs.
164-110-007 PCA with additional damping for low flow.
164-120 Model 164-110-010 installed in a NEMA 4 Box

The Model 164 is designed to be used with either transmitters that provide a voltage output,
such as the Max 272 Series, or transmitters that provide a pulse or square wave output,
such as the Max 284, 286 or 289. The Model 164 has a selector switch to select either
analog or pulse transmitters.

Page 2 164-110-350 Max Machinery, Inc.

SPECIFICATIONS

The Model 164 has separate 0-10V, 0-2V and 4-20mA outputs, with individual Range, Span
and Zero adjustments. The 0-2V output has an associated 5V supply connection designed to
power a DVM. The 4-20mA output can be switched to provide l-5mA.

The Damping control is a three pole low pass filter, designed to even out flow signal
variations caused by pump noise or flow meter design.

Specifications

Analog Input Range . . . . . . . . . . . . . . . . . . . . . . . 0 to 30V

Frequency Input Range

Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mV to 20V P-P

Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 10 KHz

Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pulse, Square or Sine

Hysteresis (Sine Wave) . . . . . . . . . . . . . . . . . . 0 to 500 mV

Minimum Input Frequency

(For Full Scale Output) . . . . . . . . . . . . . . . . . . 30 Hz Pulse or Sine Wave,

15 Hz Square

Damping Filter Time Constant . . . . . . . . . . . . . . . 70 mS to 20 Seconds

Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 10 V @ 5 mA

0 to 2 V for DVM
4 to 20 mA (or 1 to 5 mA)

@ 0 to 24 V

Linearity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 0.05% of FS

Temperature Coefficient . . . . . . . . . . . . . . . . . . . . ± 0.1%/10°C of FS

Recommended Operating Temperature . . . . . . . . 30°F to 120°F

Size (PCA only) . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3/8"L X 5 1/2"W X 2"H

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . 110/220 VAC @ 15 W

164-110-350 Max Machinery, Inc. Page 3

SETUP PROCEDURE

1. Connect the flow transmitter with an appropriate Max cable or some other 6 conductor
shielded cable. The shield portion of the cable should be connected at the Model164 only.
The -15V connection should be made for Max 272 Transmitters only.

2. Connect the output(s) to external equipment as desired.

3. Check the board supply jumpers for proper orientation and connect the AC power.

4. If the Model164 was purchased as part of a flow system and calibrated at the factory, the
only control which generally requires attention is the Damping. During operation, set this
adjustment for acceptable display stability at the lowest operational flow rate.

5. Be sure to read the flow meter and transmitter manuals prior to starting up the system.

6. Units which have not been factory calibrated will require further setup. For frequency
input transmitters, the frequency to DC converter will have to be adjusted. For all units,
the range, span and zero controls for the selected output(s) will require calibration.

(For Calibration Instructions, see page 9).

Page 4 164-110-350 Max Machinery, Inc.